Hi, I use pam_cracklib and pam google-authenticator in an ubuntu server. and many users log in from the same IP. But when someone makes some login failures for 8-10 times, the SSH gets blocked for a few minutes. All I can see in auth.log is a few PAM authentication failures… I don’t know what is blocking the SSH. But I don’t want that to happen for at least one IP since it causes problems for many users. Any idea on how to fix this?
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.
Click below to sign up and get $200 of credit to try our products over 60 days!