<%NUMBERING1%>.<%NUMBERING2%>.<%NUMBERING3%> PRTG Manual: Device Settings

The following settings are available on the Settings tab of a device.

i_round_blueWe recommend that you define as many settings as possible in the root group settings so that you can inherit them to all other objects in the object hierarchy.

For device settings, you can also use multi-edit. This enables you to change the settings of many devices at the same time.

i_square_cyanFor more information, see section Multi-Edit.

i_round_blueThis documentation refers to an administrator that accesses the PRTG web interface on a master node. Other user accounts, interfaces, or failover nodes might not have all of the options in the way described here. In a cluster, note that failover nodes are read-only by default.

In this section:

Basic Device Settings

Setting

Description

Device Name

Enter a meaningful name to identify the device. By default, PRTG shows this name in the device tree, as well as in alarms, logs, notifications, reports, maps, libraries, and tickets.

i_round_blueIf the name contains angle brackets (<>), PRTG replaces them with braces ({}) for security reasons. For more information, see the Knowledge Base: What security features does PRTG include?

Status

Select the monitoring status of the device:

  • Started: Monitor the device.
  • Paused: Pause monitoring for the device. All sensors on the device are in the Paused status until you change this setting.

IP Version

Select the IP protocol that PRTG uses to connect to the device:

  • IPv4: Use IP version 4 for all requests to the device.
  • IPv6: Use IP version 6 for all requests to the device.

i_round_blueThe setting is valid for all sensors that you create on the device.

IPv4 Address/DNS Name

This setting is only visible if you select IPv4 above. Enter the IP address or Domain Name System (DNS) name for the device. Most sensors that you create on this device inherit this setting and try to connect to this address for monitoring.

i_round_blueSome sensors have their own setting for the IP address/DNS name to which they connect.

IPv6 Address/DNS Name

This setting is only visible if you select IPv6 above. Enter the IP address or Domain Name System (DNS) name for the device. Most sensors that you create on this device inherit this setting and try to connect to this address for monitoring.

i_round_blueSome sensors have their own setting for the IP address/DNS name to which they connect.

Parent Tags

Shows tags that this device inherits from its parent group and its parent probe.

i_round_blueThis setting is for your information only. You cannot change it.

Tags

Enter one or more tags. Confirm each tag with the Spacebar key, a comma, or the Enter key. You can use tags to group objects and use tag-filtered views later on. Tags are not case-sensitive. Tags are automatically inherited.

i_round_blueWe recommend that you use the default value. You can also add additional tags.

i_round_blueIt is not possible to enter tags with a leading plus (+) or minus (-) sign, nor tags with parentheses (()) or angle brackets (<>).

i_round_blueFor performance reasons, it can take some minutes until you can filter for new tags that you added.

Priority

Select a priority for the device. This setting determines the position of the group in lists. The highest priority is at the top of a list. You can choose from the lowest priority (i_priority_1) to the highest priority (i_priority_5).

Additional Device Information

Setting

Description

Device Icon

Select a device icon. PRTG shows it in the device tree.

Service URL

Specify a URL to open directly when you select Device Tools | Go To Service URL from the context menu of the device. For example, you can configure this option to open the address http://www.example.com/service.html. Enter a valid URL or leave the field empty.

Device Identification and Auto-Discovery

Setting

Description

Auto-Discovery Level

Select the level of detail for the auto-discovery:

  • No auto-discovery: Select this option if you only want to manually create devices and sensors.
  • Standard auto-discovery (recommended): Create a set of standard sensors for standard monitoring. This option works fine for most installations.
  • Detailed auto-discovery: Create all standard sensors and additional sensors from detailed variants of device templates. As a result, you might get many sensors. This option is suitable for small network segments and whenever you want to monitor the maximum number of sensors available.
  • Auto-discovery with specific device templates: Customize the auto-discovery and select or combine standard, detailed, and custom device templates. Select one or more templates from the Devices Templates list.

i_round_blueAuto-discoveries can be resource intensive. They are primarily intended for devices on the same network as your probes.

Schedule

This setting is only visible if you select one of the standard, detailed, or custom auto-discovery options above. Define when the auto-discovery runs:

  • Once: Perform the auto-discovery only once. For existing devices, this initiates a one-time sensor update for the selected device. If you select this option, you have to start the auto-discovery manually.
  • Hourly: Perform the auto-discovery for new sensors every 60 minutes.
  • Daily: Perform the auto-discovery for new sensors every 24 hours. The first auto-discovery runs immediately, all other discoveries start at the time defined in the Auto-Discovery settings section under Setup | System Administration | Monitoring.
  • Weekly: Perform the auto-discovery for new sensors every 7 days. The first auto-discovery runs immediately, all other discoveries start at the time defined in the Auto-Discovery settings section under Setup | System Administration | Monitoring.

Device Templates

This setting is only visible if you select Auto-discovery with specific device templates above. Select one or more device templates by adding a check mark in front of the template name.

i_round_blueYou can also select all items or cancel the selection by using the check box in the table header.

PRTG uses the device templates that you select for the auto-discovery on the device. Choose from:

  • ADSL
  • Amazon CloudWatch
  • Buffalo TeraStation NAS
  • Cisco ASA VPN
  • Cisco Device (Generic)
  • Dell EqualLogic
  • Dell MDi Disk
  • DNS Server
  • Environment Jacarta
  • Environment Poseidon
  • FTP Server
  • Generic Device (Ping Only)
  • Generic Device (SNMP Enabled)
  • Generic Device (SNMP Enabled, Detailed)
  • HTTP Web Server
  • Hyper-V Host Server
  • IPMI-enabled Device
  • Juniper NS Device
  • Linux/UNIX Device (SNMP or SSH Enabled)
  • Mail Server (Generic)
  • Mail Server (MS Exchange)
  • Microsoft SharePoint 2010
  • NAS LenovoEMC
  • NAS QNAP
  • NAS Synology
  • NetApp
  • NTP Server
  • Printer (HP)
  • Printer (Generic)
  • RDP Server
  • RMON-compatible Device
  • Server (Cisco UCS)
  • Server (Compaq/HP Agents)
  • Server (Dell)
  • Server (Fujitsu)
  • Server (IBM)
  • SonicWall
  • SSL Security Check
  • Switch (Cisco Catalyst)
  • Switch (Cisco IOS Based)
  • Switch (HP Procurve)
  • UNIX/Linux Device
  • UPS Health (APC)
  • UPS Health (Generic)
  • UPS Health (Liebert)
  • VMware ESXi / vCenter Server
  • Web Server
  • Windows (Detailed via WMI)
  • Windows (via Remote PowerShell)
  • Windows (via WMI)
  • Windows IIS (via SNMP)
  • XenServer Hosts
  • XenServer Virtual Machines

Once the auto-discovery is finished, PRTG creates a new ticket and lists the device templates that it used to create new sensors.

Inherited Settings

By default, all of the following settings are inherited from objects that are higher in the hierarchy. We recommend that you change them centrally in the root group settings if necessary. To change a setting for this object only, click b_inherited_enabled under the corresponding setting name to disable the inheritance and to display its options.

i_square_cyanFor more information, see section Inheritance of Settings.

Location

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

Location (for Geo Maps)

If you want to use Geo Maps, enter a location in the first line. Geographical maps then display objects like devices or groups with a status icon using a color code similar to the sensor status icons (green–yellow–orange–red). You can enter a full postal address, city and country only, or latitude and longitude. It is possible to enter any text before, between, and after the coordinates, as PRTG automatically parses latitude and longitude, for example, enter 49.452778 11.077778, or enter 49.452778 any 11.077778 text.

A minus sign (-) in the first line hides an object from a geographical map. In this case, you can enter location information in line two and following.

You can define a specific label for each location. Enter a string denoting the label in the first line and provide the coordinates in the second line. This geographical marker then shows the object with the label in the geographical map.

i_round_blueThe preview map always has a road map layout regardless of the map layout you set in User Interface.

Credentials for Windows Systems

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

Domain or Computer Name

Enter the domain or computer name of the user account with which you want to access the Windows system. PRTG uses this account for Windows Management Instrumentation (WMI) sensors and other Windows sensors.

If you want to use a Windows local user account on the target device, enter the computer name. If you want to use a Windows domain user account (recommended), enter the domain name. PRTG automatically adds a prefix to use the NT LAN Manager (NTLM) protocol if you do not explicitly define it. Do not leave this field empty.

User Name

Enter the user name for access to the Windows system. Usually, you use credentials with administrator rights.

Password

Enter the password for access to the Windows system. Usually, you use credentials with administrator rights.

Credentials for Linux/Solaris/macOS (SSH/WBEM) Systems

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

User Name

Enter the user name for access to the Linux/Solaris/macOS system via Secure Shell (SSH) and Web-based Enterprise Management (WBEM). Usually, you use credentials with administrator rights.

Authentication Method

Select the authentication method for login:

  • Password: Provide the password for the login.
  • Private key: Provide an RSA private key for authentication.

i_round_redPRTG can only handle keys in the OpenSSH format that are not encrypted. You cannot use password-protected keys.

i_round_redPRTG only supports RSA keys. It does not support DSA keys.

i_square_cyanFor details, see section Monitoring via SSH.

Password

This setting is only visible if you select Password above. Enter a password for access to the Linux/Solaris/macOS system via SSH and WBEM. Usually, you use credentials with administrator rights.

Private Key

This setting is only visible if you select Private key above. Paste the entire RSA private key, including the BEGIN and END lines. Make sure that a corresponding public key exists on the target device.

i_round_redPRTG can only handle keys in the OpenSSH format that are not encrypted. You cannot use password-protected keys.

i_round_redPRTG only supports RSA keys. It does not support DSA keys.

i_square_cyanFor details, see section Monitoring via SSH.

i_round_redIf you do not insert a private key for the first time but if you want to change the private key, you need to restart the PRTG core server service for the private key change to take effect.

WBEM Protocol

Select the protocol that you want to use for the connection to the system via WBEM:

  • HTTP: Use an unsecure connection for WBEM.
  • HTTPS (default): Use a Secure Sockets Layer (SSL)/Transport Layer Security (TLS) secured connection for WBEM.

i_round_blueThis setting is only relevant if you use WBEM sensors.

WBEM Port

Select if you want to use one of the default ports for the connection to the system via WBEM or if you want to set a custom port:

  • Default: Use one of the default ports. The default port for unsecure connections is 5988 and the default port for secure connections is 5989.
  • Custom: Use a custom port.

i_round_blueThis setting is only relevant if you use WBEM sensors.

Custom WBEM Port

This setting is only visible if you select Custom above. Enter a custom WBEM port. Enter an integer value.

SSH Port

Enter the port for SSH connections. Enter an integer value. The default port is 22.

i_round_blueBy default, PRTG automatically uses this setting for all SSH sensors unless you define a different port number in the sensor settings.

SSH Rights Elevation

Select the rights that you want to use to run the command on the target system:

  • Run the command as the connecting user (default): Use the rights of the user who establishes the SSH connection.
  • Run the command as a different user using 'sudo' (with password): Use the rights of a different user with a password required for sudo to run commands on the target system, for example, as a root user.
  • Run the command as a different user using 'sudo' (without password): Use the rights of a different user without a password required for sudo to run commands on the target system, for example, as a root user.
  • Run the command as a different user using 'su': Use the rights of a different user with su to run commands on the target system.

Target User Name

This setting is only visible if you select an option that includes sudo or su above. Enter a user name to run the specified command on the target system as a different user than the root user. If you leave this field empty, you run the command as a root user. Make sure that you set the Linux password even if you use a public key or a private key for authentication. This is not necessary if the user is allowed to run the command without a password.

Password

This setting is only visible if you select an option that includes sudo or su with password above. Enter the password to run the sudo command or the su command.

SSH Connection Mode

Select the connection mode that you want to use to access data with SSH sensors:

  • Default (recommended): This is the default monitoring method for SSH sensors. It provides the best performance and security.
  • Compatibility mode (deprecated): Use this mode only if the default mode does not work on the target system. The compatibility mode is the SSH engine that PRTG used in previous versions and it is deprecated.

i_round_redWe strongly recommend that you use the default SSH connection mode.

i_round_blueYou can also individually select the SSH connection mode for each SSH sensor in the sensor settings.

Credentials for VMware/XenServer

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

User Name

Enter the user name for access to VMware ESXi, vCenter Server, or Citrix XenServer. Usually, you use credentials with administrator rights.

Password

Enter the password for access to VMware ESXi, vCenter Server, or Citrix XenServer. Usually, you use credentials with administrator rights.

i_round_blueSingle sign-on (SSO) passwords for vSphere do not support special characters. For details, see the VMware sensors sections.

VMware Protocol

Select the protocol for the connection to VMware ESXi, vCenter Server, or Citrix XenServer:

  • HTTPS (recommended): Use a Secure Sockets Layer (SSL)/Transport Layer Security (TLS) secured connection.
  • HTTP: Use an unsecure connection.

Session Handling

Select if you want to reuse a session for VMware sensors:

  • Reuse a session for multiple scans (recommended): Select this option if you want a VMware sensor to reuse a single session for multiple sensor scans to query data. With this option, the sensor does not need to log in and out for each sensor scan. We recommend that you use this option because it reduces network load and log entries on the target device. This can increase performance.
  • Create a new session for each scan: If you select this option, PRTG does not reuse a session and a VMware sensor has to log in and out for each sensor scan. This can decrease performance.

Credentials for SNMP Devices

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

SNMP Version

Select the Simple Network Management Protocol (SNMP) version for the connection to the target SNMP device:

  • SNMP v1: Use SNMP v1 for the connection. SNMP v1 only offers clear-text data transmission.
    i_round_redSNMP v1 does not support 64-bit counters. This might result in invalid data when you monitor traffic via SNMP.
  • SNMP v2c (recommended): Use SNMP v2c for the connection. SNMP v2c also only offers clear-text data transmission but it supports 64-bit counters.
  • SNMP v3: Use SNMP v3 for the connection. SNMP v3 provides secure authentication and data encryption.
    i_round_redSNMP v3 has performance limitations because of the use of encryption. The main limiting factor is CPU power. Also keep in mind that SNMP v3, unlike SNMP v1 and v2c, does not scale with more CPU power. Because of this limitation, PRTG can only handle a limited number of requests per second so that you can use only a limited number of sensors using SNMP v3. If you see an increase in Interval Delay or Open Requests with the Probe Health sensor, distribute the load over multiple probes. SNMP v1 and SNMP v2c do not have this limitation.

Community String

This setting is only visible if you select SNMP v1 or SNMP v2c above. Enter the community string of your device. This is like a clear-text password for simple authentication.

i_round_blueWe recommend that you use the default value.

Authentication Method

This setting is only visible if you select SNMP v3 above. Select the authentication method:

  • MD5: Use message-digest algorithm 5 (MD5) for authentication.
  • SHA: Use Secure Hash Algorithm (SHA) for authentication.

i_round_blueIf you do not want to use authentication but you need SNMP v3, for example, because your device requires context, you can leave the Password field empty. In this case, PRTG uses SNMP_SEC_LEVEL_NOAUTH and it entirely deactivates authentication.

i_round_redThe authentication method you select must match the authentication method of your device.

User Name

This setting is only visible if you select SNMP v3 above. Enter the user name for access to the target SNMP device.

i_round_redThe user name that you enter must match the user name of your device.

Password

This setting is only visible if you select SNMP v3 above. Enter the password for access to the target SNMP device.

i_round_redThe password that you enter must match the password of your device.

Encryption Type

This setting is only visible if you select SNMP v3 above. Select an encryption type:

  • DES: Use Data Encryption Standard (DES) as the encryption algorithm.
  • AES: Use Advanced Encryption Standard (AES) as the encryption algorithm.

i_round_blueNet-SNMP does not support AES-192 and AES-256. They do not have RFC specifications.

i_round_redThe encryption type that you select must match the encryption type of your device.

Encryption Key

This setting is only visible if you select SNMP v3 above. Enter an encryption key. If you provide a key, PRTG encrypts SNMP data packets with the encryption algorithm that you selected above. Enter a string or leave the field empty.

i_round_redThe encryption key that you enter must match the encryption key of your device. If the encryption keys do not match, you do not get an error message.

Context Name

This setting is only visible if you select SNMP v3 above. Enter a context name only if the configuration of the device requires it. Context is a collection of management information that is accessible by an SNMP device. Enter a string.

SNMP Port

Enter the port for the connection to the SNMP target device. Enter an integer value. The default port is 161.

i_round_blueWe recommend that you use the default value.

Timeout (Sec.)

Enter a timeout in seconds for the request. Enter an integer value. The maximum timeout value is 300 seconds (5 minutes).

Credentials for Database Management Systems

Click b_inherited_enabled to interrupt the inheritance.

The settings you define in this section apply to the following sensors:

Setting

Description

Port

Select the port that PRTG uses for connections to the monitored databases:

  • Default (recommended): PRTG automatically determines the type of the database and uses the corresponding default port to connect. PRTG uses the following default ports:
    • Microsoft SQL: 1433
    • MySQL: 3306
    • Oracle SQL: 1521
    • PostgreSQL: 5432
  • Custom port for all database sensors: Select this option if your database management systems do not use the default ports. Enter a custom port for database connections below.

i_round_redPRTG uses this custom port for all database sensors and for connections to all your databases.

Custom Port

Enter a custom port for database connections. Enter an integer value.

i_round_redPRTG uses this custom port for all database sensors and for connections to all your databases.

Authentication Method

Select the authentication method for the connection to the Structured Query Language (SQL) database:

  • Windows authentication with impersonation: PRTG uses the Windows credentials that you define in settings that are higher in the object hierarchy, for example, in the settings of the parent device; for the database connection.
    i_round_redThe user whose credentials PRTG uses needs to have permission to log in to the probe system with a database sensor. This is necessary for the impersonation.
  • SQL server authentication: Use explicit credentials for database connections. Enter a user name and password below.

User Name

This setting is only visible if you select SQL server authentication above. Enter the user name for the database connection.

Password

This setting is only visible if you select SQL server authentication above. Enter the password for the database connection.

Timeout (Sec.)

Enter a timeout in seconds for the request. Enter an integer value. The maximum timeout value is 300 seconds (5 minutes).

Credentials for AWS

Click b_inherited_enabled to interrupt the inheritance.

i_square_cyanFor more information about the permissions that are necessary to query the AWS API, see the Knowledge Base: How do I set permissions for the Amazon Web Services (AWS) API key to use certain sensors in PRTG?

Setting

Description

Access Key

Enter the Amazon Web Services (AWS) access key.

Secret Key

Enter the AWS secret key.

Credentials for Dell EMC

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

User

Enter the user name for access to the Dell EMC system.

Password

Enter the password for access to the Dell EMC system.

Port

Enter the port for the connection to the Dell EMC system. The default port for secure connections is 443.

Credentials for Microsoft 365

Click b_inherited_enabled to interrupt the inheritance.

i_round_blueThe Microsoft 365 Service Status sensor and the Microsoft 365 Service Status Advanced sensor use the following credentials to authenticate with Azure Active Directory (Azure AD).

i_square_cyanFor more information about the credentials and the permissions that are necessary to use the Microsoft 365 sensors, see the Knowledge Base: How do I obtain credentials and set permissions for the Microsoft 365 sensors?

Setting

Description

Tenant ID

Enter the Azure AD tenant ID.

i_round_redA tenant ID must be a 32-digit sequence in hexadecimal notation.

Client ID

Enter the Azure AD client ID.

Client Secret

Enter the Azure AD client secret.

Credentials for Microsoft Azure

Click b_inherited_enabled to interrupt the inheritance.

i_round_blueThe Microsoft Azure Subscription Cost sensor and the Microsoft Azure Virtual Machine sensor use the following credentials to authenticate with Azure AD.

i_square_cyanFor more information about the credentials and permissions that are necessary use the Microsoft Azure sensors, see the Knowledge Base: How do I obtain credentials and create custom roles for the Microsoft Azure sensors?

Setting

Description

Tenant ID

Enter the Azure AD tenant ID.

i_round_redA tenant ID must be a 32-digit sequence in hexadecimal notation.

Client ID

Enter the Azure AD client ID.

Client Secret

Enter the Azure AD client secret.

Subscription ID

Enter the Azure AD subscription ID.

Credentials for MQTT

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

Authentication Method

Select if you want to connect without credentials or define credentials for access to the MQTT broker.

  • None (default): Connect without credentials.
  • User name and password: Define credentials for the connection.

User

This setting is only visible if you select User name and password above. Enter the user name for access to the Message Queue Telemetry Transport (MQTT) broker.

Password

This setting is only visible if you select User name and password above. Enter the password for access to the MQTT broker.

Port

Enter the port for the connection to the MQTT broker. The default port for secure connections is 8883 and the default port for unsecure connections is 1883.

Transport-Level Security

Select if you want to use a Secure Sockets Layer (SSL)/Transport Layer Security (TLS) secured connection:

  • Do not use transport-level security: Establish the connection without connection security.
  • Use transport-level security: Establish the connection with the strongest SSL/TLS method that the target device provides.

Server Authentication

This setting is only visible if you select Use transport-level-security above. Select if you want to use a certificate for server authentication.

  • Disable (default): Do not use a certificate for server authentication.
  • Enable: Use a certificate for server authentication.

CA Certificate

Paste the certificate authority (CA) certificate for the verification of the MQTT broker.

i_round_redThe certificate must be in Privacy-Enhanced Mail (PEM) format.

Client Authentication

This setting is only visible if you select Use transport-level-security above. Select if you want to use a certificate for client authentication.

  • Disable (default): Do not use a certificate for client authentication.
  • Enable: Use a certificate for client authentication.

Client Certificate

Paste the certificate that you created for authenticating the sensor against the MQTT broker.

i_round_redThe certificate must be in PEM format.

Client Key

Enter the client key for access to the MQTT broker.

i_round_redThe client key must be in PEM format and it must be encrypted using the Client Key Password.

Client Key Password

Enter the password for the client key.

Credentials for OPC UA

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

Port

Enter the port for the connection to the OPC Unified Architecture (OPC UA) server. The default port for secure connections is 4840.

Server Path

Enter the path of the OPC UA server endpoint if you run more than one server under the same IP address or DNS name.

Security Mode

Select if you want to use encryption:

  • None (default): Do not use encryption.
  • Sign: Sign messages between the sensor and the OPC UA server.
  • Sign & Encrypt: Sign and encrypt messages between the sensor and the OPC UA server.

Security Policy

This setting is only visible if you select Sign or Sign & Encrypt above. Select if you want to use a security policy and define which policy you want to use:

  • None (default): Do not use a security policy.
  • Basic256Sha256: Use the Basic256Sha256 security policy.
  • Basic256: Use the Basic256 security policy.

Client Certificate

Paste the certificate that you created for authenticating the sensor against the OPC UA server.

i_round_redThe certificate must meet the following requirements:

  • The key size must be 2048-bit.
  • The secure hash algorithm must be SHA256.
  • DataEncipherment must be part of the KeyUsage certificate extension.
  • A uniform resource indicator (URI) must be set in subjectAltName.
  • The certificate must be in Privacy-Enhanced Mail (PEM) format.

Client Key

Enter the client key for access to the OPC UA server.

i_round_redThe client key must be in PEM format and it must be encrypted using the Client Key Password.

Client Key Password

Enter the password for the client key.

Authentication Method

Select if you want to connect without credentials or define credentials for access to the OPC UA server:

  • Anonymous (default): Connect without credentials.
  • Username/Password: Define credentials for the connection.

i_round_redMost OPC UA servers do not support Username/Password authentication without a client certificate. To use Username/Password authentication, select Sign or Sign & Encrypt under Security Mode and Basic256Sha256 or Basic256 under Security Policy and enter the Client Certificate, Client Key, and Client Key Password that you want to use.

User

This setting is only visible if you select Username/Password above. Enter the user name for access to the OPC UA server.

Password

This setting is only visible if you select Username/Password above. Enter the password for access to the OPC UA server.

Credentials for Soffico Orchestra

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

Authentication Method

Select if you want to connect without credentials or define credentials for access to the Orchestra platform:

  • None (default): Connect without credentials.
  • Username/Password: Define credentials for the connection.

User

This setting is only visible if you select Username/Password above. Enter the user name for access to the Orchestra platform.

Password

This setting is only visible if you select Username/Password above. Enter the password for access to the Orchestra platform.

Timeout (Sec.)

Enter a timeout in seconds for the request. Enter an integer value. The maximum timeout value is 300 seconds (5 minutes).

Port

Enter the port for the connection to the Orchestra platform. The default port for secure connections is 8443 and the default port for unsecure connections is 8019.

Protocol

Select the protocol that you want to use for the connection to the Orchestra platform:

  • HTTPS (default): Use a Secure Sockets Layer (SSL)/Transport Layer Security (TLS) secured connection.
  • HTTP: Use an unsecure connection.

Credentials for Veeam

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

User

Enter the user name for access to the Veeam Backup Enterprise Manager.

Password

Enter the password for access to the Veeam Backup Enterprise Manager.

Port

Enter the port for the connection to the Veeam Backup Enterprise Manager. The default port for secure connections is 9398.

Windows Compatibility Options

Click b_inherited_enabled to interrupt the inheritance.

If you experience problems when you monitor via Windows sensors, use the following compatibility options for troubleshooting.

Setting

Description

Preferred Data Source

i_round_blueThis setting only applies to hybrid sensors that use both performance counters and Windows Management Instrumentation (WMI). The setting does not apply to other sensors.

Define the method that Windows sensors use to query data:

  • Performance counters and WMI as fallback: Try to query data via performance counters. If this is not possible, establish a connection via WMI.
  • Performance counters only: Query data via performance counters only. If this is not possible, the sensor returns no data.
  • WMI only (recommended): Query data via WMI only. If this is not possible, the sensor returns no data. We recommend that you use this option.

Timeout Method

Select the time that the sensor waits for the return of the WMI query before the sensor cancels the query and shows an error message:

  • Use 1.5× scanning interval (recommended): Multiply the scanning interval of the sensor by 1.5 and use the resulting value.
  • Set manually: Manually enter a timeout value.

i_round_blueWe recommend that you use the default value.
i_round_blueIf you experience ongoing timeout errors, try increasing the timeout value.

Timeout (Sec.)

This setting is only visible if you select Set manually above. Enter the time the sensor waits for the return of its WMI query before it cancels it and shows an error message. Enter an integer value. The maximum timeout value is 900 seconds (15 minutes).

SNMP Compatibility Options

Click b_inherited_enabled to interrupt the inheritance.

If you experience problems when you monitor via Simple Network Management Protocol (SNMP) sensors, use the following compatibility options for troubleshooting.

Setting

Description

SNMP Delay (ms)

Enter the time in milliseconds (ms) that PRTG waits between two SNMP requests. This can increase device compatibility. Enter an integer value. You can define a delay between 0 and 100. PRTG does not support higher delays.

i_round_blueWe recommend that you use the default value.
i_round_blueIf you experience SNMP connection failures, try increasing the delay.

Failed Requests

Select if an SNMP sensor tries again after a request fails:

  • Retry (recommended): Try again if an SNMP request fails. This can prevent false error messages because of temporary timeout failures.
  • Do not retry: Do not retry if an SNMP request fails. If you select this option, an SNMP sensor shows a Down status earlier.

Overflow Values

Select how PRTG handles overflow values. Some devices do not correctly handle internal buffer overflows. This can cause false peaks.

  • Ignore overflow values: Ignore overflow values and do not include them in the monitoring data. We recommend that you use this option.
  • Handle overflow values as valid results: Regard all overflow values as regular data and include them in the monitoring data.

i_round_blueIf you experience problems because of strange peaks in your data graphs, change this option. Peaks might indicate that the monitored device resets counters without an overflow. PRTG interprets such behavior as overflow that results in data peaks. Select the option Ignore overflow values in this case. For more details, see the Knowledge Base: What is the Overflow Values setting in the SNMP Compatibility Options?

Zero Values

Select how PRTG handles zero values. Some devices send incorrect zero values. This can cause false peaks.

  • Ignore zero values for delta sensors (recommended): Ignore zero values and do not include them in the monitoring data. We recommend that you use this option.
    i_round_blueIf you experience problems, try changing this option.
  • Handle zero values as valid results for delta sensors: Regard all zero values as regular data and include them in the monitoring data.

32-bit/64-bit Counters

Select the type of traffic counters that PRTG searches for on a device:

  • Use 64-bit counters if available (recommended): The interface scan uses 64-bit traffic counters, if available. This can avoid buffer overflows in the devices

i_round_blueWe recommend that you use the default value.
i_round_blueIf you experience problems, try changing this option.

  • Use 32-bit counters only: The interface scan always uses 32-bit traffic counters, even if 64-bit counters are available. This can make monitoring more reliable for some devices.

Request Mode

Select the request method that PRTG uses for SNMP sensors:

  • Use multi get (recommended): Bundle multiple SNMP requests into one request. We recommend that you use this option.
    i_round_blueIf you experience problems, try changing this option.
  • Use single get: Use one request for each SNMP value. This can increase compatibility with older devices.

i_round_bluePRTG uses paging for SNMP requests. This means that if a sensor has to query more than 20 object identifiers (OID), it automatically polls the OIDs in packages of 20 OIDs each.

Walk Mode

Select the kind of SNMP walk that PRTG uses for SNMP sensors:

  • Use GETBULK requests (recommended): Request the next x OIDs in one SNMP request. The default value is 10. It is dynamic based on the response size.
    i_round_redThis option only works with devices that support SNMP version v2c or higher. Make sure that you set the correct SNMP Version in the Credentials for SNMP Devices settings of the parent device or inherit it from objects that are higher in the object hierarchy.
  • Use GETNEXT requests: Request one OID at a time. This can increase compatibility with older devices or with devices that have insufficient SNMP BULKWALK support.

Port Name Template

Select how PRTG displays the name of SNMP sensors. Enter a template that uses several variables. When you add new sensors, PRTG scans the interface for available counters at certain OIDs. At each OID, several fields with interface descriptions are usually available. They are different for every device and OID. PRTG uses the information in these fields to name the sensors. If a field is empty or if it is not available, PRTG adds an empty string to the name. By default, the port name template is ([port]) [ifalias] [ifsensor], which creates a name like (001) Ethernet1 Traffic. You can use and combine any field names that are available at an OID of your device, for example:

  • [port]: The port number of the monitored interface.
  • [ifalias]: The 'alias' name for the monitored interface as specified by a network manager, providing a non-volatile handling.
  • [ifname]: The textual name of the monitored interface as assigned by the local device.
  • [ifdescr]: A textual string containing information about the monitored device or interface, for example, manufacturer, product name, or version.
  • [ifspeed]: An estimate of the monitored interface's current bandwidth (Kbit/s).
  • [ifsensor]: The type of the sensor, this is Traffic or RMON. This helps to differentiate between SNMP Traffic and SNMP RMON sensors.

i_square_cyanFor more information about SNMP sensor names, see the Knowledge Base: How can I change the defaults for names automatically generated for new SNMP sensors?

Port Name Update

Select how PRTG reacts if you change the names of ports in your physical device (for example, a switch or router):

  • Keep port names (use this if you edit the names in PRTG): Do not automatically adjust sensor names. This is the best option if you want to manually change names in PRTG.
  • Automatically update sensor names if port names change in the device: If PRTG detects port name changes in your physical device, it tries to automatically adjust the sensor names accordingly.

i_square_cyanFor more information about automatic name updates, see the Knowledge Base: Automatically update port name and number for SNMP Traffic sensors when the device changes them

Port Identification

Select the field that PRTG uses for SNMP interface identification:

  • Automatic identification (recommended): Try the ifAlias field first to identify an SNMP interface and then try ifDescr.
    i_round_bluePRTG does not automatically try ifName.
  • Use ifAlias: For most devices, ifAlias is the best field to use for unique interface names.
  • Use ifDescr: Use this option if the port order of your device changes after a restart, and if no ifAlias field is available. For example, this is the best option for Cisco ASA devices.
    i_round_blueIf you use this option, it is important that your device returns unique interface names in the ifDescr field.
  • Use ifName: You can also use this option if no unique ifAlias is available.
    i_round_blueIf you use this option, it is important that your device returns unique interface names in the ifName field.
  • Do not update ports: Use this option to disable the automatic port identification.

Start Interface Index

i_round_blueThis setting only applies to SNMP Traffic sensors and to Cisco IP SLA sensors.

Enter the index at which PRTG starts to query the interface range during sensor creation. Enter 0 for the automatic mode.

i_round_blueWe recommend that you use the default value.

End Interface Index

i_round_blueThis setting only applies to SNMP Traffic sensors and to Cisco IP SLA sensors.

Enter the index at which PRTG stops querying the interface range during sensor creation. Enter 0 for the automatic mode.

i_round_blueWe recommend that you use the default value.

Proxy Settings for HTTP Sensors

Click b_inherited_enabled to interrupt the inheritance.

The proxy settings determine how a sensor connects to a URL. You can enter data for an HTTP proxy server that sensors use when they connect via HTTP or HTTPS.

i_round_blueThis setting only applies to HTTP sensors and how they monitor. To change the proxy settings for the PRTG core server, see section Core & Probes.

i_round_blueThe SSL Certificate sensor and the SSL Security Check sensor do not support HTTP proxies but you can configure connections via SOCKS proxies in the sensors' settings.

Setting

Description

IP Address/DNS Name

Enter the IP address or Domain Name System (DNS) name of the proxy server. If you leave this field empty, HTTP sensors do not use a proxy.

Port

Enter the port number of the proxy. The default is 8080. Enter an integer value.

User

If the proxy requires authentication, enter the user name for the proxy login.

i_round_redOnly basic authentication is available. Enter a string or leave the field empty.

Password

If the proxy requires authentication, enter the password for the proxy login.

i_round_redOnly basic authentication is available. Enter a string or leave the field empty.

Scanning Interval

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

Scanning Interval

Select a scanning interval from the dropdown list. The scanning interval determines the amount of time that the sensor waits between two scans. Choose from:

  • 30 seconds
  • 60 seconds
  • 5 minutes
  • 10 minutes
  • 15 minutes
  • 30 minutes
  • 1 hour
  • 4 hours
  • 6 hours
  • 12 hours
  • 24 hours

i_round_blueYou can change the available intervals in the system administration on PRTG on premises installations.

If a Sensor Query Fails

Select the number of scanning intervals that the sensor has time to reach and to check a device again if a sensor query fails. Depending on the option that you select, the sensor can try to reach and to check a device again several times before the sensor shows the Down status. This can avoid false alarms if the monitored device only has temporary issues. For previous scanning intervals with failed requests, the sensor shows the Warning status. Choose from:

  • Set sensor to down immediately: Set the sensor to the Down status immediately after the first request fails.
  • Set sensor to warning for 1 interval, then set to down (recommended): Set the sensor to the Warning status after the first request fails. If the second request also fails, the sensor shows the Down status.
  • Set sensor to warning for 2 intervals, then set to down: Set the sensor to the Down status only after the third request fails.
  • Set sensor to warning for 3 intervals, then set to down: Set the sensor to the Down status only after the fourth request fails.
  • Set sensor to warning for 4 intervals, then set to down: Set the sensor to the Down status only after the fifth request fails.
  • Set sensor to warning for 5 intervals, then set to down: Set the sensor to the Down status only after the sixth request fails.

i_round_blueSensors that monitor via Windows Management Instrumentation (WMI) always wait at least one scanning interval before they show the Down status. It is not possible to immediately set a WMI sensor to the Down status, so the first option does not apply to these sensors. All other options can apply.

i_round_blueIf you define error limits for a sensor's channels, the sensor immediately shows the Down status. None of the interval options apply.

i_round_blueIf a channel uses lookup values, the sensor immediately shows the Down status. None of the interval options apply.

Schedules, Dependencies, and Maintenance Windows

i_round_blueYou cannot interrupt the inheritance for schedules, dependencies, and maintenance windows. The corresponding settings from the parent objects are always active. However, you can define additional schedules, dependencies, and maintenance windows. They are active at the same time as the parent objects' settings.

Setting

Description

Schedule

Select a schedule from the list. You can use schedules to monitor during a certain time span (days or hours) every week. Choose from:

  • None
  • Saturdays
  • Sundays
  • Weekdays
  • Weekdays Eight-To-Eight (08:00 - 20:00)
  • Weekdays Nights (17:00 - 09:00)
  • Weekdays Nights (20:00 - 08:00)
  • Weekdays Nine-To-Five (09:00 - 17:00)
  • Weekends

i_round_blueYou can create schedules, edit schedules, or pause monitoring for a specific time span. For more information, see section Schedules.

Maintenance Window

Select if you want to set up a one-time maintenance window. During a maintenance window, monitoring stops for the selected object and all child objects. They show the Paused status instead. Choose between:

  • Do not set up a one-time maintenance window: Do not set up a one-time maintenance window. Monitoring is always active.
  • Set up a one-time maintenance window: Set up a one-time maintenance window and pause monitoring. You can define a time span for the pause below.

i_round_blueTo cancel an active maintenance window before the defined end date, change the time entry under Maintenance Ends to a date in the past.

Maintenance Begins

This setting is only visible if you enable Set up a one-time maintenance window above. Use the date time picker to enter the start date and time of the one-time maintenance window.

Maintenance Ends

This setting is only visible if you enable Set up a one-time maintenance window above. Use the date time picker to enter the end date and time of the one-time maintenance window.

Dependency Type

Select a dependency type. You can use dependencies to pause monitoring for an object depending on the status of a different object. You can choose from:

  • Use parent: Use the dependency type of the parent object.
  • Select a sensor: Use the dependency type of the parent object. Additionally, pause the current object if a specific sensor is in the Down status or in the Paused status because of another dependency.

i_round_blueYou do not trigger a status change by dependency if you manually pause a master object or if you pause it by schedule.

i_round_blueTo test your dependencies, select Simulate Error Status from the context menu of an object that other objects depend on. A few seconds later, all dependent objects are paused. You can check all dependencies under Devices | Dependencies in the main menu bar.

Dependency

This setting is only visible if you enable Select a sensor above. Click b_search_light and use the object selector to select a sensor on which the current object will depend.

Dependency Delay (Sec.)

This setting is only visible if you enable Select a sensor above. Define a time span in seconds for the dependency delay.

After the master sensor for this dependency returns to the Up status, PRTG additionally delays the monitoring of the dependent objects by the time span you define. This can prevent false alarms, for example, after a server restart or to give systems more time for all services to start. Enter an integer value.

Access Rights

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

User Group Access

Select the user groups that have access to the object. You see a table with user groups and group access rights. The table contains all user groups in your setup. For each user group, you can choose from the following group access rights:

  • Inherited: Inherit the access rights settings of the parent object.
  • No access: Users in this user group cannot see or edit the object. The object neither shows up in lists nor in the device tree.
    i_round_blueThere is one exception: If a user in this user group has access to a child object, the parent object is visible in the device tree but users in this user group cannot access it.
  • Read access: Users in this group can see the object and view its monitoring results. They cannot edit any settings.
  • Write access: Users in this group can see the object, view its monitoring results, and edit its settings. They cannot edit its access rights settings.
  • Full access: Users in this group can see the object, view its monitoring results, edit its settings, and edit its access rights settings.

To automatically set all child objects to inherit this object's access rights, enable the Revert children's access rights to inherited option.

i_square_cyanFor more details on access rights, see section Access Rights Management.

Channel Unit Configuration

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

Channel Unit Types

For each type of channel, select the unit in which PRTG displays the data. If you define this setting on probe, group, or device level, you can inherit these settings to all sensors underneath. You can set units for the following channel types (if available):

  • Bandwidth
  • Memory
  • Disk
  • File
  • Custom

i_round_blueCustom channel types are only available on sensor level.

Advanced Network Analysis

Click b_inherited_enabled to interrupt the inheritance.

Setting

Description

Unusual Detection

Select if you want to use the unusual detection for sensors:

  • Enabled: Activate the unusual detection for this object and, by default, for all objects underneath in the object hierarchy. Sensors that are affected by this setting show the Unusual status if PRTG detects unusual activity.
  • Disabled: Do not activate the unusual detection. PRTG ignores unusual values for sensors that are affected by this setting. These sensors do not show the Unusual status.

i_round_blueYou can configure the behavior of the unusual detection or completely disable it in the system settings.

Similar Sensors Detection

Select if you want to activate the similar sensors analysis:

  • Enabled: Activate the similar sensors detection for this object and, by default, for all objects underneath in the object hierarchy. PRTG considers all sensors that are affected by this setting during the similarity analysis.
  • Disabled: Do not the activate the similar sensors detection. PRTG does not consider sensors that are affected by this setting during the similarity analysis.

i_round_blueYou can configure the depth of the analysis of the similar sensors detection or completely disable it in the system settings.

System Information

Select if you want to retrieve and show system information for your devices:

  • Enabled: Activate the system information feature for this object and, by default, for all objects underneath in the hierarchy.
  • Disabled: Do not activate the system information feature.

i_round_blueThe System Information feature is enabled by default. To retrieve the data, PRTG automatically uses the credentials for Windows systems and the credentials for SNMP devices that you entered in the device settings or that the device inherits from a parent object like the root group. Consider this when you monitor devices that are outside of your local network, especially when you use SNMP v1 or SNMP v2c, which do not provide encryption.

i_podThis setting is not available on the hosted probe of a PRTG Hosted Monitor instance.

i_round_redSave your settings. If you change tabs or use the main menu without saving, all changes to the settings are lost.

More

i_square_blueKNOWLEDGE BASE

What security features does PRTG include?

How do I set permissions for the Amazon Web Services (AWS) API key to use certain sensors in PRTG?

How do I obtain credentials and set permissions for the Microsoft 365 sensors?

How do I obtain credentials and create custom roles for the Microsoft Azure sensors?

What is the Overflow Values setting in the SNMP Compatibility Options?

How can I change the defaults for names automatically generated for new SNMP sensors?

Automatically update port name and number for SNMP Traffic sensors when the device changes them

Device and Sensor Setup