check_tcp works from CLI, not in nagios
Slade Edmonds
slade at cryptoflow.net
Fri May 7 18:26:55 CEST 2004
Anthony Lieuallen wrote:
>Excerpts from services.cfg, checkcommands.cfg, the CLI, and the nagios page
>below.
>I have numerous services (check_ dns, tcp, smtp, ping) all set up and
>working, except this particular tcp (_telnet) check fails, but works from
>the command line.
>I'm stumped.
>
>define service {
> host_name XXXHOSTNAMEHEREXXX
> service_description telnet
> check_command check_telnet
> max_check_attempts 4
> normal_check_interval 12
> retry_check_interval 1
> check_period always
> notification_interval 0
> notification_period always
> notification_options w,u,c,r
> contact_groups admin
>}
>
># 'check_telnet' command definition
>define command{
> command_name check_telnet
> command_line $USER1$/check_tcp -H $HOSTADDRESS$ -p 23
> }
>
>t-bone at 602744 [/usr/local/nagios/etc]# ../libexec/check_tcp -H
>XXXHOSTNAMEHEREXXX -p 23
>TCP OK - 0.031 second response time on port 23|time= 0.031
>
>Current Status: CRITICAL (Has been acknowledged)
>Status Information: Connection refused by host
>Current Attempt: 4/4
>State Type: HARD
>Last Check Type: ACTIVE
>
>
I assume you have checked to be certain the address in hosts.cfg for
that particular host is entered correctly? Is running tcpdump on your
destination host (or connected firewall interface) an option? At least
you could verify whether or not it is actually checking the correct host
that way, even if your host definition seems to be in order. I can't
imagine, though, that it would be checking the wrong host if your host
definition is accurate.
Slade
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