[Users] Hostname issue on CentOS 7.x
Dmitry Konstantinov
barmaley at barmaley.net
Mon Nov 14 12:06:30 PST 2016
We 'fix' it from system-wide vps.mount
The part that does the fix:
*****
if [[ "${OSTEMPLATE}" =~ "centos-7" && -n "${HOSTNAME}" ]]; then
echo "OVZHOSTNAME=\"${HOSTNAME}\"" > ${VE_ROOT}/etc/sysconfig/ovzhostname
if [[ ! -f ${VE_ROOT}/etc/systemd/system/ovzhostname.service ]]; then
cat << XXTAGXX > ${VE_ROOT}/etc/systemd/system/ovzhostname.service
[Unit]
Description=hostname fix for cpanel
After=network.target
Before=cpanel.service
[Service]
Type=oneshot
ExecStart=/etc/init.d/ovzhostname
[Install]
WantedBy=multi-user.target
XXTAGXX
fi
if [[ ! -L ${VE_ROOT}/etc/systemd/system/multi-user.target.wants/ovzhostname.service ]]; then
ln -s /etc/systemd/system/ovzhostname.service \
${VE_ROOT}/etc/systemd/system/multi-user.target.wants/ovzhostname.service
fi
if [[ ! -f ${VE_ROOT}/etc/init.d/ovzhostname ]]; then
cat << XXTAGXX > ${VE_ROOT}/etc/init.d/ovzhostname
#!/bin/bash
OVZHOSTNAME=""
if [[ -f /etc/sysconfig/ovzhostname ]]; then
source /etc/sysconfig/ovzhostname
if [[ -n "\${OVZHOSTNAME}" ]]; then
echo "\${OVZHOSTNAME}" > /etc/hostname
hostname "\${OVZHOSTNAME}"
hostnamectl set-hostname "\${OVZHOSTNAME}"
fi
fi
XXTAGXX
chmod 0755 ${VE_ROOT}/etc/init.d/ovzhostname
fi
fi
*****
On Fri, 11 Nov 2016 04:33:18 +0000
Jean-Pierre Abboud <jpabboud at gotekky.com> 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 at 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 at server1 network-scripts]# cat /etc/hostname
> server1
>
> [root at server1 network-scripts]# cat /proc/sys/kernel/hostname
> server1
>
> [root at 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 at 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.
>
>
> Thank you!
>
> --
> Jean-Pierre Abboud
> Account Manager / Gotekky
> 888.915.4400 / 514.316.1885
> Email: jpabboud at gotekky.com
>
>
> _______________________________________________
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> Users at openvz.org
> https://lists.openvz.org/mailman/listinfo/users
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