加载LINUX启动项的问题

我手动修改rc.local文件为


#!/bin/sh
#
# This script will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don't
# want to do the full Sys V style init stuff.
touch /var/lock/subsys/local
#proftpd start
/etc/rc.d/init.d/proftpd start
#ssd start
/etc/init.d/sshd start


不知道是否可行，命令行启动我都测试过是可以执行的。

然后还有APACHE和MYSQL需要启动，我需要再加上下面两行么？

/etc/rc.d/init.d/httpd start
/etc/rc.d/init.d/mysqld start

我担心服务器重启会有错,SSH连不上就麻烦了，希望大家帮我看看我的写法是否正确。