SSHd server not starting at boot RHEL / CentOS 7

By default sshd server does not start in CentOS 7.
chkconfig command does not control ssh daemon any more.

Solution is to use systemctl:

[code]
> systemctl enable sshd
[/code]

It produces following awkward result:
ln -s ‘/usr/lib/systemd/system/sshd.service’ ‘/etc/systemd/system/multi-user.target.wants/sshd.service’

To check if SSH server is staring on boot (and if it is running):

[code]
> systemctl status sshd

sshd.service – OpenSSH server daemon
Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled)
Active: active (running) since Mon 2014-11-03 18:43:56 GMT; 20min ago
[/code]

Enabled – means it will start at boot time automatically.
Welcome to systemd world..

Alias interfaces in CentOS 7/ RHEL 7

[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-enp3s0

HWADDR=00:15:80:99:A6:21
TYPE=Ethernet
BOOTPROTO=none
IPADDR0=212.47.x.x
NETMASK0=255.255.255.0
GATEWAY0=212.47.x.x
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=no
IPV6_FAILURE_FATAL=no
NAME=enp3s0
IPADDR1=212.47.x.x
NETMASK1=255.255.255.0
IPADDR2=212.47.x.x
NETMASK2=255.255.255.0
IPADDR3=212.47.x.x
NETMASK3=255.255.255.0

UUID=a3fe28da-5d35-4885-9fe8-cb716c29b35a
ONBOOT=yes