[PLUG] dns monitor

[Martin A. Brown]

Hello there,

 : I have a customer that is waiting on a DNS update for his site to 
 : start working. He's bugging my guys constantly, so I promised him 
 : we'd call him the moment it "works." Currently, I'm checking his 
 : DNS server every few minutes manually. If I could automate this 
 : to alert me when it's updated, we could make the call and be 
 : done.
 : 
 : It was also worth the email because I'd like to be able to do 
 : this on a broader scale - I'm curious about how often some public 
 : DNS servers update. I could submit a change and time how long it 
 : takes each server I'm curious about to return the new data. I'm 
 : particularly interested in the difference in response time 
 : between 4.2.2.2 and 8.8.8.8.

Try this in a terminal:

  watch -n 10 -- host deadcat.org. 4.2.2.2

-Martin

-- 
Martin A. Brown
http://linux-ip.net/