knowing remote ip address

slack66 · 09-14-2006, 09:28 AM

i have a remote pc connected thru internet and dynamiclly
changing ip adress is there a way to know the ip address of my pc thru hardware address? what snifer program will i use? a simple one pls

theNbomr · 09-14-2006, 09:41 AM

The MAC address of your system (most likely your cable/DSL modem) is invisible at any level you would have access to. Your best bet is to have a periodic task which checks the IP, and sends it to some place that you can always access, such as by e-mail.

--- rod.

michaelk · 09-14-2006, 10:11 AM

You can sign up with a free dynamic DNS site like noip and dyndns. A client runs on the remote PC that updates the IP address. Your URL (selectable) will always point to the IP.

alienmagic · 09-14-2006, 10:13 AM

I've been using www.dyndns.com for awhile and have been happy with it, other than the fact that every so often you have to manually update the IP address or it quits working, which is by design for the free dynamic hosting they offer. If you don't mind doing that, I'd recommend them.

dive · 09-14-2006, 11:29 AM

Code:

/sbin/ifconfig eth0 | grep "inet addr:" | awk -F: {'print $2'} | cut -d\  -f 1

raska · 09-14-2006, 11:38 AM

that's pretty neat command dive but it doesn't work as it's missing a space at the cut

Code:

/sbin/ifconfig eth0 | /bin/grep "inet addr:" | /bin/awk -F: {'print $2'} | /bin/cut -d\  -f 1

dive · 09-14-2006, 12:41 PM

Strange, I did put an extra space, I guess I shoulda used code tags. Fixed

Randux · 09-14-2006, 01:37 PM

never mind

raska · 09-14-2006, 01:58 PM

yup, I thought of it as a typo error