Networking2015/05/27

[1]	Set static IP address to the server. ( Replace the section 'ifcfg-***' to your own interface name )

# set hostname

[root@localhost ~]#

hostnamectl set-hostname dlp.srv.world

# display devices

[root@localhost ~]#

nmcli d

DEVICE       TYPE      STATE      CONNECTION
eno16777736  ethernet  connected  eno16777736
lo           loopback  unmanaged  --

# set IPv4 address

[root@localhost ~]#

nmcli c modify eno16777736 ipv4.addresses 10.0.0.30/24

# set default gateway

[root@localhost ~]#

nmcli c modify eno16777736 ipv4.gateway 10.0.0.1

# set DNS

[root@localhost ~]#

nmcli c modify eno16777736 ipv4.dns 10.0.0.1

# set manual for static setting (it's "auto" for DHCP)

[root@localhost ~]#

nmcli c modify eno16777736 ipv4.method manual

# restart the interface and reload the settings

[root@localhost ~]#

nmcli c down eno16777736; nmcli c up eno16777736

Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/1)

# show settings

[root@localhost ~]#

nmcli d show eno16777736

GENERAL.DEVICE:               eno16777736
GENERAL.TYPE:                 ethernet
GENERAL.HWADDR:               52:54:00:84:07:73
GENERAL.MTU:                  1500
GENERAL.STATE:                100 (connected)
GENERAL.CONNECTION:           eth0
GENERAL.CON-PATH:             /org/freedesktop/NetworkManager/ActiveConnection/0
WIRED-PROPERTIES.CARRIER:     on
IP4.ADDRESS[1]:               10.0.0.30/32
IP4.GATEWAY:                  10.0.0.1
IP4.ROUTE[1]:                 dst = 10.0.0.1/32, nh = 0.0.0.0, mt = 100
IP4.DNS[1]:                   10.0.0.1
IP6.ADDRESS[1]:               fe80::5054:ff:fe84:773/64
IP6.GATEWAY:

# show status

[root@localhost ~]#

ip addr show

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eno16777736: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 52:54:00:84:07:73 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.30/32 brd 10.0.0.30 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:ff:fe84:773/64 scope link
       valid_lft forever preferred_lft forever

[2]	Disable IPv6 like follows if you do not need it.

[root@localhost ~]#

vi /etc/default/grub

# line 7: add

GRUB_CMDLINE_LINUX="

ipv6.disable=1

rd.lvm.lv=fedora-server/root.....

# apply changing

[root@localhost ~]#

grub2-mkconfig -o /boot/grub2/grub.cfg

[root@localhost ~]#

reboot

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