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I bought a VPS server yesterday. Server companies support is not avaible for now. I am going to set dns adress. So i know 1 ip number they gave to me, how can i learn how many ip's i have and what are they? Is there command for ubuntu for that? Or any other way?

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migrated from Feb 21 '10 at 3:39

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3 Answers 3

ip addr as root is the way to go.

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inet brd scope global eth0 i am getting this result, so it means what ? – Anonymous Feb 20 '10 at 11:56

/sbin/ifconfig -a

Will result in something like

eth0      Link encap:Ethernet  HWaddr 00:1C:C0:78:D2:74  
          inet addr:aaa.bbb.ccc.dddd  Bcast:xxx.yyy.zzz.nnn  Mask:
          RX packets:423575721 errors:0 dropped:0 overruns:0 frame:0
          TX packets:126628915 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:3433267581 (3.1 GiB)  TX bytes:4221095056 (3.9 GiB)
          Interrupt:17 Base address:0x6000 

lo        Link encap:Local Loopback  
          inet addr:  Mask:
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:9838921 errors:0 dropped:0 overruns:0 frame:0
          TX packets:9838921 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:4205604044 (3.9 GiB)  TX bytes:4205604044 (3.9 GiB)

Any IP address not assigned to lo is a public IP address (confirm that by trying to ping it from another machine)

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/sbin/ip addr as non-root ;-)

[kaman@host-10 ~]$ /sbin/ip a|grep -oP "inet (\d+\.){3}\d+"
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This may or may not work, depending on the actual permissions of /sbin and /sbin/ip. I wouldn't count on it. – joschi Apr 3 '10 at 6:14

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