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Zimbra zmconfigd not running/starting – How to fix

by | Nov 27, 2020

Often Zimbra server users come across the issue of Zimbra zmconfigd not running/starting.

At Bobcares we fix this issue as a part of our  Server Management Services for our clients.

Today, let’s see how our Support Engineers fix this issue with a few simple and easy steps.

zimbra zmconfigd not running/starting


How to check whether zmconfigd is running or not?

To check the status of zmconfigd service on Zimbra, we can use the command:

$ zmconfigdctl status

A Zimbra server operating fine would give the us status as running.

zimbra zmconfigd not running/starting

But there will be some instances where we end up with Zimbra zmconfigd not running/starting.

zimbra zmconfigd not running/starting


Common causes and their solutions:

The issue with zmcofigd status may be caused due to any of the following reasons:

  •  Problem with IPv6
  • Zimbra cannot get zmconfigd service status
  • Missing Netcat (nc) and which commands


Problem with IPv6

If we are using IPv6 in our Zimbra server it will cause the issue of Zimbra zmconfigd not running/starting.

So if we have IPv6 enabled, we need to disable it. Any edits in the configuration file should be done after disabling IPv6 if it’s enabled in the server.

Add these line to /etc/sysctl.conf to disable IPv6 on Linux.

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1

Save the file and apply rules.

$ sudo sysctl -p

Also, comment out the entries in  /etc/hosts file.

#::1 localhost ip6-localhost ip6-loopback
#ff02::1 ip6-allnodes
#ff02::2 ip6-allrouters

Then try restart zmconfigd:

$ sudo su – zimbra
$ zmconfigdctl restart

After restart upon checking the status, we can find it running.

[Still facing the issue? We are here for you!]


Zimbra cannot get zmconfigd service status

Sometimes It is also possible that zmconfigd is in a running state but Zimbra cannot get its state.

To fix this we have to remove its pid file and restart the service.

$ cat /opt/zimbra/log/
$ sudo rm /opt/zimbra/log/
$ sudo su – zimbra -c “zmconfigdctl restart”

After doing this we will see that issue of Zimbra zmconfigd not running/starting is fixed.


Missing netcat (nc) and which commands

If we have nc command missing, we can see that while trying to start zmconfigd it may result in a failure.

We can fix this error by installing it.

Install nc on Ubuntu / Debian systems:

$ sudo apt-get install netcat-openbsd

Install on CentOS:

For CentOS servers, nc command is provided by the nmap-ncat package.

$ sudo yum -y install nmap-ncat

After installing nc, we need to restart Zimbra.

[Need further assistance? We are here for you!]



In short, we’ve discussed some causes such as  missing netcat (nc) command, Pid issue of zimbraa etc.,  along with some quick fixes that our Support Engineers follow to fix zmconfigd not running/starting issue.





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