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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-10431

net.tcp.listen is not returning the right value

    Details

    • Type: Incident report
    • Status: Closed
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 3.0.0
    • Fix Version/s: 3.0.2rc1, 3.2.0alpha1
    • Component/s: Agent (G)
    • Environment:
      uname -a: Linux zabbix.communitake.com 3.10.0-327.10.1.el7.x86_64 #1 SMP Tue Feb 16 17:03:50 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
      cat /etc/redhat-release: CentOS Linux release 7.2.1511 (Core)

      Description

      I've upgraded to zabbix 3.0 (server and agent)

      I try to use net.tcp.listen to check if a port is listening and I always get 0 as an anwser

      for example.

      on one of the machines I have the following output for netstat -nlpt

      tcp        0      0 0.0.0.0:9234                0.0.0.0:*                   LISTEN      1155/python
      tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      806/sshd
      tcp        0      0 127.0.0.1:25                0.0.0.0:*                   LISTEN      882/master
      tcp        0      0 0.0.0.0:10050               0.0.0.0:*                   LISTEN      18514/zabbix_agentd
      tcp        0      0 :::22                       :::*                        LISTEN      806/sshd
      tcp        0      0 ::1:25                      :::*                        LISTEN      882/master
      tcp        0      0 :::443                      :::*                        LISTEN      1900/docker-proxy
      tcp        0      0 :::8443                     :::*                        LISTEN      1881/docker-proxy
      tcp        0      0 :::10050                    :::*                        LISTEN      18514/zabbix_agentd
      

      this is the output from running zabbix_get on the zabbix server for all available ports.

      [root@zabbix ~]# zabbix_get -s r5.communitake.com -k net.tcp.listen[9234]
      0
      [root@zabbix ~]# zabbix_get -s r5.communitake.com -k net.tcp.listen[22]
      0
      [root@zabbix ~]# zabbix_get -s r5.communitake.com -k net.tcp.listen[25]
      0
      [root@zabbix ~]# zabbix_get -s r5.communitake.com -k net.tcp.listen[10050]
      0
      [root@zabbix ~]# zabbix_get -s r5.communitake.com -k net.tcp.listen[443]
      0
      [root@zabbix ~]# zabbix_get -s r5.communitake.com -k net.tcp.listen[8443]
      0
      

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              • Assignee:
                Unassigned
                Reporter:
                ziv@communitake.com Ziv Gabel
              • Votes:
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                Dates

                • Created:
                  Updated:
                  Resolved: