Remote Port Monitoring Script

Question

Hi,

I'm trying to monitor if a TCP Port is available to a particular server in a remote site.  We are having some issues with a server in a new site connecting to an application server and want to be alerted when that server cannot communicate with the application server.  Now I know I could just apply a TCP Port Monitor to the application server but that would just be checking to see if that port is open from the Solarwinds Server's perspective, not the server in the remote site.

So I was wondering if anyone had a VB Script that could check if the port is open (From remote server to application server) and basically exit with an UP status if the port is open, and DOWN if the port is unreachable.  This way I could use a Windows Script Monitor and apply it to the remote machine.

Thanks

Petr.Vilem · Answer

Do you have some Cisco device in the remote site? If so, than this could be perfect task for IP SLA Manager.

kb1lxm · Answer

Thanks, I'm sure you can come up with something more elegant than I.  After playing with NMAP for a little bit I've come up with one way to do it.  I also have a script that parses a text file looking for a string within a text file and if it sees it will quit with the appropriate exit code/statistic/message combo.  So my inelegant quick and dirty hack would be:

1.) In Scheduled Tasks set up a job to run nmap every 5 minutes, outputing the results to a text file
2.) setup a Windows Script Monitor to parse that text file looking for "3489/tcp closed"  if it sees that the component should go into "Down" state.  This is to prevent a false positive if the text file is some how blank.

Obviously there is a better way to do this but it's atleast one way I can get this to work.

kb1lxm · Answer

Moderator please delete this double post.