rhel6 查看开机自启动
chkconfig --list
启动、关闭，设置开启自启动
service iptables start
service iptables stop
chkconfig --level 2345 iptables on
[root@x112 mysql]# chkconfig --level 3,4,5 mysqld on
chkconfig version 1.7.4 - Copyright (C) 1997-2000 Red Hat, Inc.
This may be freely redistributed under the terms of the GNU Public License.
usage: chkconfig [--list] [--type <type>] [name]
chkconfig --add <name>
chkconfig --del <name>
chkconfig --override <name>
chkconfig [--level <levels>] [--type <type>] <name> <on|off|reset|resetpriorities>
[root@x112 mysql]# chkconfig --add mysqld on
[root@x112 mysql]# chkconfig --level 345 mysqld on
rhel7防火墙查看开机自启动
systemctl list-unit-files | grep iptables
启动、关闭，设置开启自启动
systemctl start iptables
systemctl stop iptables
systemctl enable iptables