Question

Cant SSH via local machine until I login through web-based console. UFW Rate Limiting

Posted on February 11, 2019
Ubuntu 18.04 System Tools
Asked by 627

Every now and then I can’t login with a user or root account via ssh on my machine, I get denied. If I go through the web based console I can, and then it seems to ‘unlock’ my local machine and I can login again via terminal. What is going on here?

UFW is setup to limit ssh connections (default config), so can anyone tell me how long UFW will deny a connection for after its hit the rate limit? I know that it only kicks in when someone has attempted 6 or more connections in a 30 second window… but is that indefinite? Or after some period of time will it allow further attempts?

Thanks!

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627 • February 11, 2019

Accepted Answer

was a fail2ban issue. My mistake.