Nxtcfg - Collector configuration tool


Nxtcfg - Collector configuration tool

Nxtcfg is a small console application to read and modify the configuration parameters of the Collector. Ensure that you run Nxtcfg with administrator privileges.


By default, the Nxtcfg tool is installed along with the Collector when installing the Collector MSI. Once the Collector is installed, the Nxtcfg tool is located under C:\Windows\System32\nxtcfg.exe.

The Collector MSI version used determines the nxtcfg version installed (Windows 32-bit or 64-bit system).

If not required, add the option CFG_INSTALL=0 to the MSI command line, when installing the Collector.


Option Description Example
/disable (deprecated) Turn off the Nexthink Collector (the driver is kept in memory in idle state). This does not stop the Collector driver. To stop the Collector driver, use the command net stop "Nexthink Collector Driver" nxtcfg.exe /disable
/enable (deprecated) Turn on the Nexthink Collector. This does not start the Collector driver. To start the Collector driver, use the command net start "Nexthink Collector Driver" nxtcfg.exe /enable
/g Get the value of a particular configuration parameter from the Collector. nxtcfg.exe /g ip
/s Set the value of one or more configuration parameters of the Collector. nxtcfg.exe /s ip= udp_port=999
/l List all the configuration parameters of the Collector with their current values. nxtcfg.exe /l
/d Dump all the configuration parameters of the Collector and their corresponding values to a file. nxtcfg.exe /d C:\temp\collector.cfg

Configuration parameters

The modification of some of the parameters requires to restart the Collector for the change to take effect. Rebooting the device forcefully restarts all Collector components as well. For each parameter, this is specified by the values in the column Restart required of the parameters table:

  • No: No reboot or component restart required.
  • Coord: Coordinator restart or reboot required. To restart the Coordinator from the device, open a command window as administrator and type in:
    1. net stop "Nexthink Coordinator"
    2. Wait for the Coordinator to stop and then type in:
    3. net start "Nexthink Coordinator"
  • Driver: Driver restart or reboot required. To restart the Driver from the device, open a command window as administrator and type in:
    1. net stop "Nexthink Collector Driver"
    2. Confirm the operation and wait for all the dependent Collector services to stop.
    3. Start the Collector Service (note the difference) to restart all Collector components, including the driver:
    4. net start "Nexthink Collector Service"

Parameter Description Default value Range Restart required
ip IP address or DNS name of the Engine. - - No
udp_port UDP port number where the Engine is listening. - [1 - 65535] No
tcp_port TCP port number where the Engine is listening. - [1024 - 65535] Coord
tag Optional number to identify the installation. 0 [0 - 2147483647] No
cgpi CrashGuard Protection Interval Value. It is the time interval since boot (in minutes) after which a dirty reboot does not increase the CrashGuard. 0 min - Driver
logmode Logging mode
  • 0 - Silent
  • 1 - Verbose
  • 2 - Debug (not recommended for production)
0 [0 - 2] No
logsize Maximum size of log file when logging is enabled. Logs are rotated after the maximum is reached. 32 MB [1 - 512] MB Driver
dsps Disable (1) or enable (0) SMB print monitoring functionality. 1 [0 - 1] Driver
iops Enable (1) or disable (0) IOPS monitoring functionality. 0 [0 - 1] Driver
dwef When set, the Collector does not report application freezes nor hungs. 0 [0 - 1] Driver
mss Maximum size, in bytes, of the UDP packets sent from the Collector to the Engine. 1224 B [1000 - 16384] B Driver
pkg_interval Period, in hours, in which the Collector checks for new installed packages and updates. 1 [1 - 24] Driver
wme When set, the Collector reports Web and Cloud data. 1 [0 - 1] Driver
wm_domains List of domains for which to report the URL of web requests. - Comma separated domain names. No
prefer_ipv6 When set, the Collector prefers IPv6 to communicate with the Engine when the name of the Engine resolves to both IPv6 and IPv4 addresses. 0 [0 - 1] No
custom_shells When set, enable the Collector to report user logon events and user interactions in virtualized and embedded (kiosk mode) environments. 0 [0 - 1] No
execution_policy The security policy to apply when executing scripts of remote actions. signed_trusted_or_nexthink
  • disabled
  • signed_trusted
  • signed_trusted_or_nexthink
  • unrestricted
customer_key The Customer Key of the master Appliance. - Path to text file with cryptographic key. Driver
root_ca The Root Certificate of the master Appliance. - Path to text file with root certificate. Driver

Setting the Customer Key and Root Certificate

The Collector uses the Customer Key and Root Certificate to validate the identity of the slave Appliance (Engine) and securily communicate with it via TLS. If any of these security parameters change in the Appliance (e.g. moving from pre-production to production environment), you must change the configuration in your Collectors accordingly.

The parameters customer_key and root_ca are special in the sense that they do not admit a direct value as argument, but a path to a text file holding the actual value of the Customer Key or the Root Certificate, respectively. To download the Customer Key and Root Certificate from the master Appliance, follow the same method described for installing the Collector:

  1. Log in to the Web Console of the master Appliance as admin.
  2. Select the Appliance tab at the top of the Web Console.
  3. Click Collector security in the left-hand side menu.
  4. Click the buttons DOWNLOAD CUSTOMER KEY and DOWNLOAD ROOT CERTIFICATE to download, respectively, the text files holding the Customer Key and Root Certificate of the Appliance.

To set the Customer Key and Root Certificate downloaded from the master Appliance, type in the following (assuming that you placed the downloaded files in the root directory of your C: drive): nxtcfg.exe /s customer_key="C:\Nexthink-customer-key.txt" root_ca="C:\Nexthink-root-ca.txt"

When listing the customer_key and root_ca parameters with the /l option of Nxtcfg, neither the full Customer Key nor the full Root Certificate are displayed. Instead, only the first few characters of both the configured key and certificate are shown. These characters are usually enough to identify the key or the certificate, while keeping the list of Nxtcfg parameters readable.

The operations described in this article should only be performed by a Nexthink Engineer or a Nexthink Certified Partner.

If you need help or assistance, please contact your Nexthink Certified Partner.