Setting Network Centos 7

Melanjutkan materi sebelumnya mengenai pengaturan firewall dan selinux, kali ini kami akan membahas mengenai cara setting network pada centos 7, pengaturan network ini sangat di butuhkan pada awal setelah anda mengistal operating system linux, karena jika anda tidak mengatur network maka server anda tidak bisa mengakses internet maupun di akases oleh client, oke langsung saja berikut pengaturannya.

[root@gia ~]# hostnamectl set-hostname gudangilmuaplikasi.com         # mengatur nama hostname
[root@gia ~]# nmcli d                                                 # menampilkan perangkat
DEVICE    TYPE         STATE        CONNECTION
eth0      ethernet     connected    eth0
lo        loopback     unmanaged    --

# bisanya kita akan menyeting ip di eth0

[root@gia ~]# nmcli c modify eth0 ipv4.addresses xx.xx.xx.xx/24       # setting alamat IPv4 ⇒ nmcli *** (alamat ip)
[root@gia ~]# nmcli c modify eth0 ipv4.gateway xx.xx.xx.xx            # setting ip gateway
[root@gia ~]# nmcli c modify eth0 ipv4.dns 10.0.0.1                   # setting ip dns
[root@gia ~]# nmcli c modify eth0 ipv4.method manual                  # setting ip dhcp
[root@gia ~]# nmcli c down eth0; nmcli c up eth0                      # restart network
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/1)

[root@gia ~]# nmcli d show eth0                                       # lIhat pengaturan network
GENERAL.DEVICE:            eth0
GENERAL.TYPE:              ethernet
GENERAL.HWADDR:            00:0C:29:CD:9C:2D
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]:            ip = xx.xx.xx.xx/24, gw = xx.xx.xx.1xx
IP4.DNS[1]:                xx.xx.xx.xx
IP6.ADDRESS[1]:            ip = fe80::20c:29ff:fecd:9c2d/64, gw = ::

[root@gia ~]# ip addr show # menampilkan status ip

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
    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: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:cd:9c:2d brd ff:ff:ff:ff:ff:ff
    inet xx.xx.xx.xx/24 brd xx.xx.xx.xx scope global eth0
        valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fecd:9c2d/64 scope link
        valid_lft forever preferred_lft forever

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