If you’re looking for a quick answer and you’re running a common version of Linux, just type this when you are SSH’d into your server;
sudo chkconfig httpd on
Now for a bit more technical details about what this all does.
What is chkconfig?
The Chkconfig command in Linux is used to setup, view, or change services that are configured to start automatically during the system startup which abstracts some of the underlying settings that are stored within the /etc/rc.d/init.d/ directory. Chkconfig basically helps you to easily make service start or not when your system reboots.
Some handy chkconfig commands that you’ll find handy;
- chkconfig –list (dash dash)
- This will list the details of all services that are running on startup
- chkconfig –list httpd (dash dash)
- This allows you to list specifically the details of the service you care about, to avoid you having to trawl through the entire list. Simply change ‘httpd’ to whatever service name you are interested in looking at.
When you start to look through the outputs from the above commands, it may be a little confusing seeing 7 levels, some with a status of on and some with a status of off, but what do they all mean? The different levels are what is known as Linux Runlevels. Generally speaking, you probably don’t need to worry about those at all. But if you do need some fine grain control over what happens and when, when that may be covered in a future blog post.