现象：[root@oldboyedu01-nb ~]# chkconfig iptables on
[root@oldboyedu01-nb ~]# chkconfig |grep ipt
iptables 0:off 1:off 2:on 3:on 4:on 5:on 6:off
[root@oldboyedu01-nb ~]# ll /etc/rc3.d/ |grep ipt
lrwxrwxrwx 1 root root 18 Jan 16 10:42 S08iptables -> ../init.d/iptables
[root@oldboyedu01-nb ~]# chkconfig iptables off
[root@oldboyedu01-nb ~]# ll /etc/rc3.d/ |grep ipt
lrwxrwxrwx 1 root root 18 Jan 16 10:43 K92iptables -> ../init.d/iptables
猜想：自己创建一个S08iptables与K92iptables文件科控制开机启动
即：chkconfig iptables on ====== /etc/rc3.d S08iptables -> ../init.d/iptables
chkconfig iptables off ====== /etc/rc3.d K92iptables -> ../init.d/iptables
验证：1.chkconfig iptables on ====== /etc/rc3.d S08iptables -> ../init.d/iptables
[root@oldboyedu01-nb ~]# chkconfig |grep ipt
iptables 0:off 1:off 2:off 3:off 4:off 5:off 6:off
[root@oldboyedu01-nb ~]# ls -l /etc/rc3.d/|grep ipt
[root@oldboyedu01-nb ~]# ln -s /etc/init.d/iptables /etc/rc3.d/S08iptables
[root@oldboyedu01-nb ~]# ls -l /etc/rc3.d/|grep ipt
lrwxrwxrwx 1 root root 20 Jan 16 10:48 S08iptables -> /etc/init.d/iptables
[root@oldboyedu01-nb ~]#
[root@oldboyedu01-nb ~]# chkconfig |grep ipt
iptables 0:off 1:off 2:off 3:on 4:off 5:off 6:off
2.chkconfig iptables off ====== /etc/rc3.d K92iptables -> ../init.d/iptables
[root@oldboyedu-01 ~]# chkconfig |grep ipt
iptables 0:off 1:off 2:on 3:on 4:on 5:on 6:off
[root@oldboyedu-01 ~]# ln -s /etc/init.d/iptables /etc/rc3.d/K92iptables
[root@oldboyedu-01 ~]# ll /etc/rc3.d/ |grep ipt
lrwxrwxrwx. 1 root root 20 Jun 22 02:27 K92iptables -> /etc/init.d/iptables
[root@oldboyedu-01 ~]# chkconfig |grep ipt
iptables 0:off 1:off 2:on 3:off 4:on 5:on 6:off
结论——猜想成立
chkconfig iptables on ====== /etc/rc3.d S08iptables -> ../init.d/iptables
chkconfig iptables off ====== /etc/rc3.d K92iptables -> ../init.d/iptables