Service Accounts password change in AD

If we are using service account and password has been changed in AD for service accounts then sites won’t work service unavailable and page can’t be displayed will be showing , at that time need to set the passwords as below.

1)      To update the password from the Central Administration GUI > Security > General Security > Configure Managed Accounts and click edit on the relevant managed account and then select Change password now and then select Use existing password. Enter the password that was entered in AD and click OK.

2)      Reset the IIS