How to modify the host name in Redhat?

 

1.Modify the configuration file

#vim /etc/sysconfig/network

---------------------------------

HOSTNAME=host6

---------------------------------

then you need to restart your network

 

#service network restart

 

In order to connect ip address with the hostname,we need to add a record into /etc/hosts

#vim   /etc/hosts 

add a record on the first line :  192.168.8.206  host6

Note：don't modify other setting

 

---------------------------------------------------------------------------------------------------------

192.168.8.206  host6

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4

::1   localhost localhost.localdomain localhost6 localhost6.localdomain6

---------------------------------------------------------------------------------------------------------

 

2.Otherwise,turn off the firewall

#service iptables stop-----------stop firewall

#service iptables status--------check

#chkconfig iptables off       ----------disable the firewall to boot when startup

#chkconfig --list | grep iptables--------check

3.Restart your os ,check it's hostname