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Localhost PING WARNING - System call sent warnings to stderr
Posted: Thu Jun 26, 2025 2:01 pm
by TBT
In an effort to upgrade from XI 5.9.1, we first need to migrate XI off Debian 10 to Debian 11. After successfully migrating/restoring the application to the new Debian 11 server, the localhost ping check is warning: "PING WARNING - System call sent warnings to stderr"
Command ran from CCM:
Code: Select all
/usr/local/nagios/libexec/check_ping -H 127.0.0.1 -w 100.0,20% -c 500.0,60% -p 5
PING WARNING - System call sent warnings to stderr Packet loss = 0%, RTA = 0.14 ms|rta=0.136000ms;100.000000;500.000000;0.000000 pl=0%;20;60;0
I've exhausted troubleshooting without resolve, and hoping others may have a suggestion on what to check?
Thanks in advance.
Re: Localhost PING WARNING - System call sent warnings to stderr
Posted: Thu Jun 26, 2025 2:25 pm
by TBT
One difference to be noted between the old (Debian 10) vs new (Debian 11) servers are the permissions & ownership after restore.
Old
-rwxrwxr-x 1 www-data nagios 227056 Dec 6 2021 /usr/local/nagios/libexec/check_ping
New
-rwxr-xr-x 1 root nagios 212280 Jun 24 10:21 /usr/local/nagios/libexec/check_ping
That said, the /usr/local/nagios/libexec/ directory has a mix of permissions & ownership on both servers.
Re: Localhost PING WARNING - System call sent warnings to stderr
Posted: Thu Jun 26, 2025 10:52 pm
by kg2857
There's no point in checking the server (localhost) w/ ping. If there's no networking you will never know it. You need a remote nagios instance to verify this one is working. Don't get me started on local and geographical redundancy
That's not a solution to the specific issue. I'd look at check_ping -h to see if there's an option that helps, or look at check_tcp.