Re: [JunkMail] Re: Finding your dynamic external IP

2003-08-04 Thread Mark Woodson 
On Monday 04 August 2003 08:39 am, Technical Director wrote:
 On Sun, 3 Aug 2003, David S. Jackson wrote:
  If your external IP number changes, as with DHCP, is there a way
  to find out what it currently is?  I was thinking you could keep
  BitchX logged into a chat channel and script a /dns yournick and
  email yourself the results from time to time.
 
  How would you do it?

dhclient allows you to execute scripts when it runs.

man dhclient-scripts and see the HOOKS sections, but the gist is that you can 
create an /etc/dhclient-(enter|exit)-hooks script to do whatever you might 
need.

-Mark

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Re: [JunkMail] Re: Finding your dynamic external IP

2003-08-04 Thread Bill Campbell 
On Mon, Aug 04, 2003 at 10:07:18AM -0700, Mark Woodson wrote:
...
dhclient allows you to execute scripts when it runs.

man dhclient-scripts and see the HOOKS sections, but the gist is that you can 
create an /etc/dhclient-(enter|exit)-hooks script to do whatever you might 
need.

This is fine so long as your system is directly connected to the public
Internet, but doesn't work if going through a NAT router of some kind.  We
use quite a few LinkSys VPN boxes at client sites because they're cheap,
easy to configure, and reliable.  Unfortunately they're not easy to query
to find status which is why I started using the sshclient service I posted
here last week.

Bill
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