IP commands of Command line (CLI)in Linux

Following are the IP Commands for LINUX :-

Display network configurations/settings (including the IP address) - ifconfig

Assign IP Address - ifconfig eth0 192.168.1.6

Show status of ethernet interface eth0 - ethtool eth0

Manually set ethernet interface speed - ethtool --change eth0 autoneg off speed 100 duplex full

Show status of wireless interface eth1 - iwconfig eth1

Manually set wireless interface speed - iwconfig eth1 rate 1Mb/s fixed

List wireless networks in range - iwlist scan

List network interfaces - ip link show

Rename interface eth0 to wan - ip link set dev eth0 name wan

Bring interface eth0 up (or down) - ip link set dev eth0 up

List addresses for interfaces - ip addr show

Add (or del) ip and mask (255.255.255.0) - ip addr add 192.168.1.2/24 brd + dev eth0

List routing table - ip route show

Set default gateway to 192.168.1.1 -

• ip route add default via 192.168.1.1


• route add default gw 192.168.1.1

Add 20ms latency to loopback device (for testing) - tc qdisc add dev lo root handle 1:0 netem delay 20msec

Remove latency added above - tc qdisc del dev lo root

Lookup DNS ip address for name or vice versa - host ipmango.com

List internet services on a system - netstat -tupl

List active connections to/from system - netstat -tup

Run GUI command on $HOSTNAME as $USER - ssh -f -Y $USER@$HOSTNAME xeyes

Run command on $HOST as $USER - ssh $USER@$HOST command

Copy with permissions to $USER's home directory on $HOST - scp -p -r $USER@$HOST: file dir/

Name of the driver your Ethernet Card is using - # grep eth0 /etc/modules.conf

See Your Public And LAN IP Addresses