How to Enable/Disable Expire Passwords in Windows?

1. Open 'Local users and groups' under computer management and choose the user or group you need to make the change
2. Open the properties by right clicking on it
3. Enable or disable 'password never expires' check box under 'General' Tab

Mount filesystem as read only or read write in RHEV/RHEL

mount -oremount,<rw/ro> <partition>