Watching Old DNS Entries Expire
Slicehost, my current hosting company, is migrating clients to a new IP range. After updating DNS, I was curious to find out how long my old data would be cached.
dig +ttlid buscaluz.org @ns8.zoneedit.com
Next I wanted to monitor my local DNS server as the old entry expired.
watch -n 30 'dig +ttlid buscaluz.org | egrep ^b.*IN.*A'
Man, I love Linux!
