11/13/2022 0 Comments Nsclient for linux![]() ![]() What does supply a valid certificate mean? A certificate is valid if the certificate is within it's period of validity and it is from a trusted CA. A value of 2 for this directive would require that before communication can be established, the check_nrpe plugin must supply a valid certificate.Ĭertificates need to be issued by a certificate authority (CA), so it can be assumed that the certificate is from a trusted source because you have that CA in your configs. ![]() On the NRPE client, the ssl_client_certs directive specifies whether or not a certificate will be requested when the check_nrpe plugin tries to connect. On the NRPE client a certificate can be used for encryption. Why would you want to use certificates? It provides extra layers of security. This is what is installed on the Nagios server, but is also installed on the NRPE client by default (not NSClient++) This is what sends the request off to the client / agent NSClient++ is the Windows client that has an NRPE listening module, developed externally by a third party "NRPE Client" refers to the Unix/Linux based client, provided by Nagios Enterprises This is what is listening for NRPE requests The following explains the terms used in this document. The NRPE client can request the check_nrpe plugin provide a valid certificate NRPE client can use a certificate for encryption ![]() The ssl_cipher_list directive lets you specify which ciphers you want to allow ( by default) The ssl_version directive lets you set which versions of SSL/TLS you want to allow ( TLSv2+ by default).Only the windows installation part of NSClient is remaining yet the linux part is properly installed along with the 'check_nt' plugin.This KB article discusses NRPE v3 and the new security features implemented in that version.Ī 2048-bit DH key is used instead of a 512-bit key The issue is with the installation as per the first step, and the 'net start nsclient' command is not executing on command prompt, its showing service name invalidĪny help regarding this ? M installing this on windows 7. The installation will create an entry for the service in the registry and create a new key to store parameters. (d) Type 'net start nsclient' on the command line or start the service 'Nagios Agent' in the services applet of the control panel. (c) Run the following command : >pNSClient.exe /install (b) Open a dos prompt in the installation directory The required steps are: (a) Copy pNSClient.exe, pdh.dll, psapi.dll and fs in any directory on the machine you want to monitor. Now as per NSClient documentation, the windows part is not getting installed. I have installed Nagios monitoring tool in linux whose service is running successfully as expected. ![]()
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