Sharepoint2010 HTTP Error 503. The service is unavailable Solution

1. Prerequisites for changing the password of a System Administrator

Because changing the system administrator user password will affect the normal operation of "cmdpoint2010", do not change the system administrator user password whenever possible,

If you must change the password, note the following two points:

 1.1 system password setting requirements:

The password must contain:

1) uppercase letters A-Z.

2) lowercase letter A-Z.

3) numbers 0-9. Non-letter characters (!, $, #, %)

4) Try not to use "-,_".

1.2.IIS Manager application pool:

The program in the application pool is associated with the "System domain administrator user" password. Because the application pool is associated with the site, you only need to change the "System

The domain administrator user "password, you must go to" IIS Manager application pool "to change the associated" site identity password ", as shown below:

"Start" -- "Administrative Tools" -- "Internet Information Service (IIS) manager" -- "application pool" -- select and "system domain administrator user"

"Right-click the relevant program and choose --" Advanced Settings "--" Process Model "--" Identity "--" application pool ID "--" Settings "-- set the password.

 

2. The error message is as follows:

An error occurs when you open the SharePoint 2010 site!

HTTP Error 503. The service is unavailable

This problem is because the system domain administrator password has not been changed to the application pool.