hi friends!
i know that host names are put into a file called
/etc/hosts
which can have three fields as
<ip address> <fully qualified DNS name> <alias>
eg.
255.255.17.1 abc.xx.yy abc
so to telnet to the machine whose ip is as above
(255.255.17.1),i can do telnet abc instead which is short and sweet,
so if now i remove the alias part of the above ip,i shouldnt be able to telnet
to this machine in the same manner,but it's not working,
after removing the alias here,still my machine can telnet to abc.xx.yy as
telnet abc