Permanent hostname change on RedHat based systems
RedHat based system use the file /etc/sysconfig/network to read the saved hostname at system boot. This is set using the init script. /etc/rc.d/rc.sysinit
/etc/sysconfig/network
NETWORKING=yes
HOSTNAME="plain.domainname.com"
GATEWAY="192.168.0.1"
GATEWAYDEV="eth0"
FORWARD_IPV4="yes"
So in order to preserve your change on system reboot edit this file and enter the appropriate name using the HOSTNAME variable.
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/630461/viewspace-629528/ ，如需转载，请注明出处，否则将追究法律责任。
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