Monthly Archives: April 2017

Nagios Plugins 2.2.1 Released

The Nagios Plugins Development Team is proud to announce that nagios-plugins 2.2.1 has been released and is available for download.


  • check_users: not accepting zero as the threshold
  • check_http: reports warning where it should report ok with -e
  • check_snmp: does not work with -6 –ipv6 flags
  • check_swap: threshold calculation in bytes requires subtracting 65
  • check_uptime: fixed backward help text for thresholds
  • check_http: Don’t prematurely report success when checking HTTP TLS cert validity
  • check_http: fix parsing the last header
  • check_mailq: Fix for Postfix and better Sudo Checking
  • Fix spelling error
  • check_ntp_peer: requires newline when there is a socket timeout (fix in netutils.c)
  • check_users: segmentation fault if both thresholds are not provided
  • check_dns: DNS CRITICAL – expected ‘{hostname}.’ but got ‘name = {hostname}.’
  • check_mailq: Nullmailer Regex is not working for Ubuntu 16.04
  • check_swap: Downstream Fedora patch: Prevent check_swap from returning OK, if no swap activated
  • Building RPMs on Amazon Linux – Add ‘install-root’ on line 165 of spec file
  • check_http: Memory allocation error

Download Nagios-Plugins 2.2.1 here.

Thanks to all who have contributed toward this release. If you need assistance installing or using the plugins, please visit our general support forum. Bug reports, feature requests, and additional comments are welcome and may be posted to our plugin development forum.