Why the hostname is so important for grommunio?

ladas

Hi everybody,
I would like to ask somebody if it is possible to summarize what it is necessary to modify at old debian based servers before last upgrades installation. I try to make small intro.
At all my servers I used @WalterH howto about hostname settings: https://community.grommunio.com/d/753-why-the-hostname-is-so-important-for-grommunio
My severs hostname cannot be the same as fqdn of primary used domain,
At /etc/hostname:
`127.0.0.1 localhost localhost.localdomain

10.85.5.15 webmail.primary-domain.com webmail
10.85.5.15 realhostname.internal-domain.com realhostname

#The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
`
At Admin web gui, at server settings I set localhost = webmail.primary-domain.com

This system worked up to the beggining this month. When I tried to update any server, including the one which I installed cca two month ago, they stop to work.

At log files there are errors which are described here:
failed to delivere message to [localhost]:5000 mailbox is mantained by other host HX_inet_connect midb_agent@[::1]:5555: Connection refused Database connection failed with error 2002: Can't connect to local server through socket '/run/mysqld/mysqld.sock' Could not load license: No such file or directory

When I read forum, and according the offitial support the server settings should not be used when ohe host is used. Funny thing is that at forum for each question worked different modifications. Because at offitial documentation is nothing, I woud like to ask, if somebody can explain which settings are correct and will work for longer time.
Thank you very much for any hint.

WalterH

ladas At Admin web gui, at server settings I set localhost = webmail.primary-domain.com

If you don't have a cluster solution, that's your first major problem.

ladas

Hi WalterH, WalterH
I read this thread, but what is the solution?
Add to hosts:
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

and remove the line from server configuration?

WalterH

This is the solution: https://community.grommunio.com/d/2588-exmdb-client-failed-to-connect-localhost5000-prefix-is-not-served/50

WalterH

This commands:

QUERY="UPDATE domains SET homeserver = 0;"
mysql grommunio --execute="$QUERY"

QUERY="UPDATE users SET homeserver = 0;"
mysql grommunio --execute="$QUERY"

grommunio-admin server delete 1

ladas

WalterH Good morning Walter,
thank you very much for the help. I tested that, and it seems, it works! I made test at one my server and the latest upgrades runs without problems. Thank you very much for your help.