In this post we will discuss about the solution for the SharePoint error message "HTTP Error 503. The service is unavailable in SharePoint". This error comes in my case when I changed the account password which I used to login to the central administration.
I will personally recommend you to do two things if you got the above error.
STSADM command line tool provides a good command to update farm credentials. To use this:
- Open command prompt in Administrator mode (Go to Start type cmd and then right click on cmd and click Run as Administrator).
- Then in the command prompt navigate to Program Files\Common Files\Microsoft Shared\web server extensions\14\BIN (for SharePoint 2010
- Then run the below command
stsadm.exe -o updatefarmcredentials -userlogin <Domain\username> -password <give new password>
It will give a successful message.
After that do an IISRESET.
Now try opening your central administration, it should work now.
If the above solution did not work then you can try Solution-2 below:
Go to Start -> All Programs -> Administrative Tools -> Internet Information Services (IIS) Manager.
Then Click on(+) the server name -> Application Pools then locate your application pools. Right click on the Application pool name go to Advance settings -> Go to process model then Identity Click on the Identity ->Set and then give the user name, password and confirm password.
Hopefully one of the solution will work for you.