Nagios Support Forum

Thanks for your response, but it shows status as "Unknown" after modifying the nrpe.cfg on client. Complete alert as below, looks like that is incorrect syntax. Current Status: UNKNOWN (for 0d 0h 2m 22s) Status Information: Usage: check_tcp -H host -p port [-w <warning time>] [-c <critical...

Hi All, Greetings of the day ! I have one RHEL EC2 instance running nginx listening to port 80. I have defined commands and service check in host config file to monitor this host. After running below command manually, I could see it's working perfectly. ./check_tcp -H 13.233.117.236 -p 80 -w 10 -c 2...

hi, this is resolved. One file was wrongly name which caused issue. Thanks !

Hi @danderson,

Thanks for your response, but whatever commands I defined in commands file is correct, please check the attached.

Please guide what I am doing wrong here.

Many Thanks,
Piyush

Hi, I am integrating slack with Nagios core to receive alerts and slack has a pretty simple mechanism called Incoming webhooks to achieve it. I had two separate scripts for getting slack host & service notifications under /usr/local/nagios/libexec directory. Both Nagios core & the client are...

Hello All, Happy Saturday, I am new to Nagios core, looking to clear confusion on below points. 1) Nagios nrpe daemon has to be installed on remote server to be monitored ? 2) Nagios plugins should be installed on server running Nagios core or the remote server ? 3) Nagios check_nrpe plugin has be i...

Hi All, I had installed Nagios core on EC2 instance and when trying to check load on the remote server, I am getting the below response by executing the command, ./check_nrpe -H 13.201.39.252 -c check_load -a -w .15,.10,.05 -c .30,.25,.20 CHECK_NRPE: Receive header underflow - only 0 bytes received ...

Hi, I have newly setup Nagios and added one host for monitoring the CPU load & memory. But facing the below error, (No output on stdout) stderr: execvp(/usr/local/nagios/libexec/check_nrpe, ...) failed. errno is 2: No such file or directory On my remote host nrpe is already installed & /usr/...