iptables preferred IP block
I am fairly new to this self-hosting so please don't hit me too hard
Can you please provide some of your IP tables IP blocks which you apply on your server?
I am asking because I saw a huge number of strange IP attempts in my Dovecot logs. There are so many of them that they crash Dovecot at some point
BTW, I am using Ubuntu 18 on this server. Is it better to use iptables or firewalld which comes by default with Ubuntu?
Thank you in advance!
Also, if you think that this topic should be moved to some other category, please tell me