CentOS7主机名修改
1.命令行更改主机名，重启终端即生效。
#hostnamectl --static set-hostname k8s-master
2.通过脚本进行主机名修改
# cat config-hostname.sh #!/bin/bash # get ip address ip=$(ip a show dev ens32 | grep -w inet | awk '{print $2}' | cut -d '/' -f1) # get hostname from hosts files hostname=$(grep "${ip}" /etc/hosts | awk '{print $2}') # modify hostname hostname ${hostname} sed -i "s/HOSTNAME=.*$/HOSTNAME=${hostname}/g" /etc/sysconfig/network