Search Exchange

Search All Sites

Nagios Live Webinars

Let our experts show you how Nagios can help your organization.

Contact Us

Phone: 1-888-NAGIOS-1
Email: sales@nagios.com

Login

Remember Me

Directory Tree

check_telnet.pl

Rating
0 votes
Favoured:
0
Last Release Date
2014-10-06
Compatible With
  • Nagios 1.x
  • Nagios 2.x
  • Nagios 3.x
  • Nagios 4.x
  • Nagios XI
License
GPL
Hits
32229
Files:
FileDescription
check_telnet.plcheck_telnet.pl
Nagios CSP

Meet The New Nagios Core Services Platform

Built on over 25 years of monitoring experience, the Nagios Core Services Platform provides insightful monitoring dashboards, time-saving monitoring wizards, and unmatched ease of use. Use it for free indefinitely.

Monitoring Made Magically Better

  • Nagios Core on Overdrive
  • Powerful Monitoring Dashboards
  • Time-Saving Configuration Wizards
  • Open Source Powered Monitoring On Steroids
  • And So Much More!
Based on Eli Stair's 2006 check_telnet based on Net::Telnet. This version make the pattern matching more rigorous by examining ALL elements of the banner. Only if NONE of the elements match will the service check fail.

Parameters:
-H hostname/IP: of host to connect to gmetad/gmond on
-P Port: to connect to and retrieve XML
-C Command: command to execute when telnet connects
-M Match: String to match
-T Timeout: in seconds

Example (pattern matching):
When the connection to a Traverse BVE API server succeeds, the banner is "OK 200 Traverse BVE TCP Server v5.6 ready".

When the connection is NOT successful (API server is out of connections), the banner is "ERR Connection refused to (hostaddress):7661: max connections reached"

OK check:
check_telnet.pl -H hostaddress -P 7661 -M OK
OK: regex-string (OK) matches login banner.

Failed check:
check_telnet.pl -H hostaddress -P 7661 -M OK
CRITICAL: regex-string (OK) did not match login banner.