Cheatsheet: Difference between revisions

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 === IP ===
+*Show info
  ip addr show   (ip a)
  ifconfig
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  ip route get 8.8.8.8 | head -1 | cut -d' ' -f7
-IP Alias:
+*Assign IP CentOS:
+ nano /etc/sysconfig/network-scripts/ifcfg-eth0
- ifconfig eth0:test 192.168.66.1
+ DEVICE=eth0
+ BOOTPROTO=static
+ IPADDR=192.168.1.2
+ NETMASK=255.255.255.0
+ ONBOOT=yes
+*Ubuntu
-VLAN:
+ sudo nano /etc/network/interfaces
+ auto ens31
+ iface ens31 inet dhcp
+ auto ens33
+ iface ens33 inet static
+ address 192.168.0.2
+ netmask 255.255.255.0
+ network 192.168.0.0
+ broadcst 192.168.0.255
+ gateway 192.168.0.1
+ dns-nameservers 192.168.0.3
+*Other methods:
+ ifconfig eth0 10.10.10.45 netmask 255.255.255.0 up
+ ip addr add 10.20.30.176/24 dev eth0
+*IP Alias:
+ ifconfig eth0:100 192.168.66.1
+*VLAN:
  vconfig add eth0 700
  ifconfig eth0.700 192.168.66.1
+*VLAN & Alias:
+ auto eth0.10
+ iface eth0.10 inet static
+     address 192.168.1.61
+     netmask 255.255.255.0
+     gateway 192.168.1.11
+ auto eth0.10:1
+ iface eth0.10:1 inet static
+     address 10.20.100.100
+     netmask 255.255.255.0
+ auto eth0.10:2
+ iface eth0.10:2 inet static
+     address 10.20.100.200
+     netmask 255.255.255.0