RedHat slow boot

[Dinh Tien Tuan Anh]

>You need to make sure your host name is in /etc/hosts.  If not, it will
>try to resolve your host name via the DNS and eventually time out.

How can I know my host name. Actually when I log in, it has a message about 
not being able to resolve the host....  but I still be able use Internet.

That's what in my /etc/hosts

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1		localhost.localdomain localhost

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