Mark, As I said at the top of the post. There were no networking issues. The only change on the next reboot was going back to 4 cores and 8 gb. I have rebooted twice and each time the server and services come up and start perfectly. Zimbra 8.8.9 on Ubuntu 16.0.5 is noticeably slower than the previou...

Our connection path is: WAN -> pfSense (firewall) -> LAN On the LAN side of the pfSense firewall, the next connection is Untangle (only used for anti-spam, anti-phishing, web site policies, no firewall module) then behind that are the internal servers (Zimbra email and other web servers) and the of...

I have just shutdown the server and put it back to 4 CPU and 8 GB all starts fine and the server is back up and running and responsive.

This makes no sense!

Any ideas?

Cheers
Spart

What’s in /etc/resolv.conf please and what’s the output of: $ cat /etc/resolv.conf # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN nameserver 127.0.0.1 search xxx.xxx host 192.168.0.4 $ host newzimbra...

Mark, There are no network issues: $ host newzimbra.xxx.xxx newzimbra.xxx.xxx has address 192.168.0.4 newzimbra.xxx.xxx mail is handled by 30 newzimbra.xxxx.xxx $ ping newzimbra PING newzimbra.xxx.xxx (192.168.0.4) 56(84) bytes of data. 64 bytes from newzimbra.xxx.xxx (192.168.0.4): icmp_seq=1 ttl=6...

Mark, Firstly thank you for taking the time to respond. I pressed ahead with this system on 8.8.9 earlier today it did look as though all was well. All users migrated, system responsive ish...definately slower than the ubuntu 12.04 8.0.7 system it replaced. After a reboot earlier in fact at this poi...

I am struggling with a new installation it is going to be the target system for a ZCS migration from an old 12.04 system running 8.0.8. I have a new Ubuntu 16.04.5 install minimal server then zcs 8.8.9 installed. All installs fine but the system is very slow as an empty server compared to even the 1...

Found this in the wiki related to fixing permissions:[QUOTE]It appears that zmfixperms is supposed to chown zimbra:zimbra on something, but it misses it. This way, you chown EVERYTHING zimbra:zimbra, and zmfixperms puts back things that need to be owned as root, postfix, etc. [/QUOTE]Now it starts t...

I have now documented the solution see above post.
Stephen

On my rescued system I now have a combination of root and zimbra ownership permissions within the /opt/zimbra directory tree. Should everything in the tree be zimbra:zimbra ?
Many thanks

Stephen