Is there alternative to check_host_alive not working?

[ikekim]

Hi,

I typically use check_host_alive command configured in the CCM to monitor the target server if it is up or down.

However, I just came across some redhat servers which are up, but the check_host_alive command results in the message "CRITICAL - 10.155.100.101: rta nan, lost 100%" making me thinking that they are down. I realized that I'm unable to ping these servers, but I can SSH to them and logon.

Therefore, I believe there must be a firewall that has ICMP traffic blocked and SSH port allowed.

Is there an alternative way for me to monitor these servers if they are up without using the check_host_alive command?


thanks.

[npolovenko]

Hi, @ikekim. There's a check_ssh command in CCM, you can open the host config file and change the command to check_ssh.