how to log ip address on ubuntu ?

[ubfu]

I wanted to keep track of what ip address connected from ISP since it's a dynamic ip address.

Is there any script or application that can keep track and log ip address connected to the internet ?

Thank you

[byStanderone]

...are you not using firestarter?

[Iowan]

This will tell you your external IP address.
I remember a thread asking how to find external IP address from command line - I'll need to search for it (or you can )
You can also check a service like dyndns.com or no-ip.com.

[ubfu]

...are you not using firestarter?

Does it log ip address ?

This will tell you your external IP address.
I remember a thread asking how to find external IP address from command line - I'll need to search for it (or you can )
You can also check a service like dyndns.com or no-ip.com.

I mean I wanted to log my ip address so next time I am able to trace back at certain date on certain day which IP address I connected

[x33a]

grep -i "ppp" /var/log/messages

this will show your all your entries, till the log gets rotated.

though this'll work only if you are using bridged mode.

[ubfu]

I am usinga router which it get ip address automatically

[indigene]

x33a - this grep command does not show external IP address - it shows this:
Dec 20 13:15:15 XXX-desktop kernel: [ 0.902574] PPP generic driver version 2.4.2
Dec 21 09:02:36 XXX-desktop kernel: [ 0.902581] PPP generic driver version 2.4.2
Dec 22 06:27:28 XXX-desktop kernel: [ 0.906573] PPP generic driver version 2.4.2
Dec 23 07:02:17 XXX-desktop kernel: [ 0.906559] PPP generic driver version 2.4.2

Or am I missing something in the command?

[x33a]

@ indigene,

are you manually connecting to the net? it'll only work in that case.

does ifconfig show the ip address?

[indigene]

No I'm not manually connecting. I have broadband on ADSL.

if config only shows the local IP address (inet addr:192.168.5.100 Bcast:192.168.5.255 Mask:255.255.255.0) not the external.