On 11/10/2016 08:33 PM, Jean-Pierre Abboud wrote:
Hello everyone,
We’re facing an issue on many CentOS 7.x containers running cPanel. Clients are
getting emails saying that the hostnames are not valid, for example it will
show server1 instead of the fully qualified domain name server1.domain.com
I have tried changing the hostname via cPanel or even manually but after
rebooting it goes back to server1
The container’s openvz config does contain the appropriate HOSTNAME line
HOSTNAME=“server1.domain.com"
[root@server1 network-scripts]# cat /etc/hosts
127.0.0.1 localhost.localdomain localhost localhost4.localdomain4 localhost4
# Auto-generated hostname. Please do not remove this comment.
104.245.200.10 server1.domain.com localhost6 localhost6.localdomain6 server1
localhost.localdomain
::1 localhost
[root@server1 network-scripts]# cat /etc/hostname
server1
[root@server1 network-scripts]# cat /proc/sys/kernel/hostname
server1
[root@server1 network-scripts]# cat /etc/sysconfig/network
NETWORKING="yes"
GATEWAYDEV="venet0"
NETWORKING_IPV6="yes"
IPV6_DEFAULTDEV="venet0"
HOSTNAME=server1.domain.com
DOMAINNAME=domain.com
[root@server1 network-scripts]# cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
Please note that I replaced the client’s domain and IP for privacy reasons.
It looks like a correct behaviour to me, since hostname(5)
man page says that hostname should not contain dots,
i.e. not be FQDN, so vzctl strips the domain name out of it.
What does "hostname -f" shows? Note -f flag means FQDN
("fully qualified domain name", i.e. with domain).
Kir
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