# Passwords and Key Pairs

- How Can I Set the Validity Period of the Image Password?
- How Can I Obtain the Key Pair Used by an ECS?
- What Should I Do If a Key Pair Cannot Be Imported?
- Why Does the Login to My Linux ECS Using a Key File Fail?
- Why Does a Key Pair Created Using puttygen.exe Fail to Be Imported on the Management Console?
- What Is the cloudbase-init Account in Windows ECSs Used for?
- What Should I Do If Cloud-Init Does Not Work After Python Is Upgraded?

Parent topic: FAQs