hostname issue, cant change it properly

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http://www.linuxquestions.org – i have two machine, both are same version rhel6.4 serverB, installed the server by default hostname, localhost.localdomain hostname -s localhost hostname localhost.localdomain can i change the hostname without edit /etc/sysconfig/network because my serverA, i change the hostname during installation. /etc/sysconfig/network is showing hostname=localhost.localdomain, but when i type hostname, it shows serverA (HowTos)