and the next thing is the hostname.
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. Use sysctl to change the hostname
Why would someone need a different method of doing the same thing as above? No idea, but here is anyway: use sysctl to change the variable kernel.hostname: Use:
sysctl kernel.hostname
to read the current hostname, and
sysctl kernel.hostname=NEW_HOSTNAME
to change it.

Dell Inspiron 14 – N4050 very good
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