By roht
When I ssh into my droplet, it reads out:
There were 670 failed login attempts since the last successful login.
Is this usual? Am I supposed to be concerned?
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Q:\ Is this usual? <br>A:\ It is usual and common on servers facing the internet. These internet facing servers are being scanned for open ports by malicious users everyday all day. <br> <br>Q:\ Am I supposed to be concerned? <br>A:\ Yes, you should be concerned as your server might get compromised. <br> <br>Tip: You can check the Failed login attempts with: <br> sudo cat /var/log/secure | grep Failed <br> <br>
Change the SSH port, try fail2ban: <br>https://www.digitalocean.com/community/articles/how-to-protect-ssh-with-fail2ban-on-ubuntu-12-04
I recommend installing fail2ban (see joshuataylorx’s link above) and using SSH keys while disabling password authentication: <a href=“https://www.digitalocean.com/community/articles/how-to-set-up-ssh-keys--2”>https://www.digitalocean.com/community/articles/how-to-set-up-ssh-keys--2</a>
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