<br clear="all">Hi All,<br><br>I am using check_tcp to check status of a particular
port on the server. This is working good. I would also need to monitor
LISTEN status (SYN_RECV) of that port. for ex,<br><br>I have a ldap service running on port 3890, so the command <br>
<br>netstat -anp | grep 3890<br><br>tcp 0 0 <a href="http://0.0.0.0:3890/" target="_blank">0.0.0.0:3890</a> <div id=":12m" class="ii gt"> 0.0.0.0:* LISTEN 16029/java <br>
tcp 0 0 <a href="http://10.121.30.121:3890/" target="_blank">10.121.30.121:3890</a> <a href="http://10.121.6.1:8831/" target="_blank">10.121.6.1:8831</a> ESTABLISHED 16029/java <br>
tcp 0 0 <a href="http://10.121.30.121:3890/" target="_blank">10.121.30.121:3890</a> <a href="http://10.121.6.1:61052/" target="_blank">10.121.6.1:61052</a> ESTABLISHED 16029/java <br>
tcp 228 0 <a href="http://10.121.30.121:3890/" target="_blank">10.121.30.121:3890</a> <a href="http://10.121.6.1:49440/" target="_blank">10.121.6.1:49440</a> ESTABLISHED 16029/java <br>
tcp 0 0 <a href="http://10.121.30.121:3890/" target="_blank">10.121.30.121:3890</a> <a href="http://10.121.6.1:11664/" target="_blank">10.121.6.1:11664</a> SYN_RECV 16029/java <br>
<br>The
establish connections are ok to allow, but we need to monitor SYN_RECV
status. If there is any such(SYN_RECV) connection appears, we
immediately get an alert from nagios. Is there any way to monitor such
states with nagios or check_tcp?<br>
<br>I have written some shell script to monitor such events, but also I
would like to integrate that scripts into nagios? Is that possible?<br><br>Please help me or provide some suggestions<br></div><br>-- <br>Shankar<br>