Monday 18 May 2015 DNS Name Collision

When attempting to ping a hostname I was recieved an ICMP reply from - which as I am sure you are aware is reserved for the local loop back adapter! ( DNS Name Collision

This occurs due to the fact that there is a name collision - for example if you decided a long time ago to name your domain something like "" and with the new introduction of the ICANN reserved TLD .int (meant for international companies) you would get a reply from as the name is reolving internally and externally!

ICANN have been known to assign this IP address to TLD's that are in the process of becoming available publically - to ensure that / give some time to people that already use an internal domain-name of the same TLD so that they can change it in time (hopefully). 


Post a Comment