24th Mar, 2008

Biggest Unix Cheat Sheet

A collection of Unix/Linux/BSD commands and tasks which are useful for IT work or for advanced users.

Jishee ni :

Configure additional IP addresses

Linux

# ifconfig eth0 192.168.50.254 netmask 255.255.255.0       # First IP
# ifconfig eth0:0 192.168.51.254 netmask 255.255.255.0     # Second IP

FreeBSD

# ifconfig fxp0 inet 192.168.50.254/24                     # First IP
# ifconfig fxp0 alias 192.168.51.254 netmask 255.255.255.0 # Second IP

Permanent entries in /etc/rc.conf

ifconfig_fxp0=”inet 192.168.50.254  netmask 255.255.255.0″
ifconfig_fxp0_alias0=”192.168.51.254 netmask 255.255.255.0″

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