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At first my hostname was localhost.localdomain in CentOS 6.2

I installed ubuntu in separate partition after that my hostname was changed to this ###-###-###-###-####.####.example.com

In /etc/sysconfig/network of CentOS it shows hostname as

NETWORKING=yes

HOSTNAME=localhost.localdomain

But while running env command it showing hostname as HOSTNAME=###-###-###-###-####.####.example.com

now what should I do to change my hostname to localhost.localdomain

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See the hostname command. – Daniel Andersson Aug 9 '12 at 15:57
now its working fine I edited hostname in ubuntu and After restarting here(CentOS) also its changed, now while running hostname command its showing the output as localhost.localdomain – max Aug 10 '12 at 12:20

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