Differences

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--- run_levels [2015/12/14 16:57] – luke7858
+++ run_levels [2024/05/23 07:26] (current) – external edit 127.0.0.1
@@ Line 3: / Line 3: @@
 |0 | Halt |
 |1 | Single-user text mode |
-|2 | Not used (user-definable) |
+|2 | Full multi-user with no networking |
-|3 | Full multi-user text mode |
+|3 | Full multi-user, console logins only |
 |4 | Not used (user-definable) |
 |5 | Full multi-user graphical mode (with an X-based login screen) |
-|6 | Reboot  |
+|6 | Reboot  (Do NOT set initdefault to this) |
 CentOS 6:
 \\
-List run levels:
+List all services and their run levels:
 <sxh bash>
 chkconfig --list
 </sxh>
+=== Starting service on boot ===
+<sxh bash>
+chkconfig httpd on
+</sxh>
+This turns on run levels 2, 3 and 4
+\\
+\\
+=== Turning on specific run levels ===
+Turning on levels 3,4 and 5
+<sxh bash>
+chkconfig --level 345 httpd on
+</sxh>
+\\
+===Turning off run levels ===
+<sxh bash>
+chkconfig --level 5 httpd off
+</sxh>