IP address

[jwinter1]

Is there a way I can find out my IP address on my desktop at home from somewher else? My current situation is that I'm running Apache/PHP/Perl on my DHCP DSL connection. I'm looking for a way that I can find out that server's address remotely. Any ideas?

 

[Ladi]

You may want to look into getting a dynamic dns service that will allow you to update a hostname automatically with your IP. Several such services include dyndns.org and dhs.org...much more has been posted about them in Networking, if you want to search...

~Ladi

 

[Damaged]

Well, you can easily write a shell script to email you your IP every hour if you wanted. It could look something like this:

----------------------------------------------------------------

#!/bin/sh

PATH=/sbin:/bin:/usr/sbin:/usr/bin

extip=`/sbin/ifconfig eth0 | grep 'inet addr' | awk '{print $2}' | sed -e's/.*://'`

#Print the result of the variable to a file as you can only redirect text into the body of a message with mutt (I'm probably missing something stupid here though).

printf $extip > /home/<your directory>/mydynip

/usr/bin/mutt -s &quot;Your Current IP&quot; <your email addy> < /home/<your directory/mydynip

rm -rf mydynip
----------------------------------------------------------------------

Then just make it a cron job that runs every hour. Make sure you substitue whatever your outside interface is appropriately otherwise you won't get the correct IP.

Also, I used mutt here as it's my preferred MUA. However, you could easily use mailx, Pine, Elm, or even sendmail directly if you're running that. The syntax will differ a bit though.

Finally notice that I've encased the ENTIRE statement after extip= in BACK ticks. Why? Because I want the result of that mess to be assigned to the variable. Make sure the file is executable and you're done.

 

[Damaged]

/sbin/ifconfig eth0 | grep 'inet addr' | cut -f2 -d ':' | cut -f1 -d ' '

Use that instead. No need to call up awk and sed for this small operation. Sorry. That's a much system friendlier way to accomplish the same thing as my previous line.

 

[pdo]

I'm with Ladi on this one. Dynamic DNS is the way to go. Currently I'm using dyndns.org and the clients check for IP changes every 5-10(whatever you set it to) minutes if there's changes then it'll update DNS automatically.

 

[Damaged]

wimps!

 

[jwinter1]

Thanks for the rapid response. I've set up an account with dyndns.org and I have installed yiPost as the little client that updates the DNS settings at dyndns. So far, so good.
thanks again

 

[BuckMaster]

What ever that is you have posted Damaged it sure looks cool If I had a clue on how to due it I would give it a shot!

 

[IsOs]

Damaged, how is a shell script entered.

 

[Zxcvbnm]

text editor ... power to the text editor!

 

[vi edit]

&quot;Damaged, how is a shell script entered&quot;

*cough* Ahem *cough*

 

[Damaged]

heh. vi_edit is giving you a hint. Though I personally don't use vi or any vi variant (e.g. ViM) any text editor will do. BTW I use jed, which is an emacs variant. Why? Because that's what I was taught. I really should learn to cope with vi though.

Finally make sure you don't forget the magic first line (#!/bin/sh) and make sure that the file is exectuable. BTW I learned to pronounce that first line as sh-bang. Have fun! Shell scripting is your easiest way to program, imho.

 

[R0b0tN1k]

PICO!!! Yes, I am a wimp

vi is too frustrating for me.