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ifconfig and other network syntax

  

Strange huh, why should I write about ifconfig syntax.
Yes, it is weird. But I guess, not all people know how to set up ip, gateway and dns manually.

• ifconfig
  Display current configuration for all NIC’s.
• ifconfig eth0
  Display current configuration for eth0.
• ifconfig eth0 192.168.1.2
  Assign IP address 192.168.1.2 to eth0.
• ifconfig eth0:0 192.168.1.2
  Assign multiple IP’s to eth0.
• ifconfig eth0:1 192.168.1.3
  Assign second IP address to eth0:1
• route add default gw 192.168.1.1
  Assign default gateway.
• ifconfig eth0 192.168.1.2 netmask 255.255.255.0
  Assign IP/Subnet to eth0.
• route / route -n
  View current routing table.
• traceroute www.domainnameyahoo.info
  Trace network route from desktop to www.domainnameyahoo.info
• tracepath www.domainnameyahoo.info
  Trace network path from desktop to www.domainnameyahoo.info
• host www.domainnameyahoo.info
  DNS test using www.domainnameyahoo.info
• host 209.250.240.98
  Reverse host lookup by IP address.
• dig -x 209.250.240.98
  Advanced reverse DNS lookup by IP address.

Don’t forget to add the syntax in rc.local if you use multiple ipadrress.

May 27th, 2009 Posted by admin | CentOS, General, Ubuntu | no comments