Initial Settings : Network Settings2018/10/31 |
| [1] | Set static IP address to the server. ( Replace the section [ens3] to your own interface name ) |
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# display devices [root@localhost ~]# nmcli device DEVICE TYPE STATE CONNECTION ens3 ethernet connected ens3 lo loopback unmanaged -- # set IPv4 address [root@localhost ~]# nmcli connection modify ens3 ipv4.addresses 10.0.0.30/24 # set default gateway [root@localhost ~]# nmcli connection modify ens3 ipv4.gateway 10.0.0.1 # set DNS [root@localhost ~]# nmcli connection modify ens3 ipv4.dns 10.0.0.1 # set manual for static setting (it's [auto] for DHCP) [root@localhost ~]# nmcli connection modify ens3 ipv4.method manual # restart the interface and reload the settings [root@localhost ~]# nmcli connection down ens3; nmcli connection up ens3 Connection 'ens3' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/1) Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/2) # show settings [root@localhost ~]# nmcli device show ens3 GENERAL.DEVICE: ens3 GENERAL.TYPE: ethernet GENERAL.HWADDR: 52:54:00:EF:8E:77 GENERAL.MTU: 1500 GENERAL.STATE: 100 (connected) GENERAL.CONNECTION: ens3 GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveC WIRED-PROPERTIES.CARRIER: on IP4.ADDRESS[1]: 10.0.0.30/24 IP4.GATEWAY: 10.0.0.1 IP4.ROUTE[1]: dst = 10.0.0.0/24, nh = 0.0.0.0, mt = 1 IP4.ROUTE[2]: dst = 0.0.0.0/0, nh = 10.0.0.1, mt = 100 IP4.DNS[1]: 10.0.0.10 IP6.ADDRESS[1]: fe80::5054:ff:feef:8e77/64 IP6.GATEWAY: -- IP6.ROUTE[1]: dst = fe80::/64, nh = ::, mt = 100 IP6.ROUTE[2]: dst = ff00::/8, nh = ::, mt = 256, tabl # show state [root@localhost ~]# ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
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: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 52:54:00:ef:8e:77 brd ff:ff:ff:ff:ff:ff
inet 10.0.0.30/24 brd 10.0.0.255 scope global noprefixroute ens3
valid_lft forever preferred_lft forever
inet6 fe80::5054:ff:feef:8e77/64 scope link noprefixroute
valid_lft forever preferred_lft forever
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| [2] | Disable IPv6 like follows if you do not need it. |
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[root@localhost ~]#
vi /etc/default/grub # line 7: add GRUB_CMDLINE_LINUX=" ipv6.disable=1 resume=/dev/mapper/fedora-swap.....
# apply changes [root@localhost ~]# grub2-mkconfig -o /boot/grub2/grub.cfg [root@localhost ~]# |
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