Category Archives: Learning Journal

Archived blog posts from the original “Learning Journal by J de Silva” web site @ www.desilva.biz.

Managing sshd Brute-force Attacks with iptables

One effective method to mitigate brute-force attacks and attempts to break into your public server via the SSH daemon is to use the appropriate iptables rule that will handle such abuse. There are a couple that do the job really well but the one I personally use is one that works on both, dedicated and virtual, servers. Continue reading

Configuring iptables for Webmin Servers Index Module

Earlier today I implemented stricter iptables rules on this web server – finally completing one essential task I have been ignoring for so long. Minutes later, just when I was beginning to feel good about myself, on a remote server some place else, the Webmin System and Server Status module there was reporting that it could no longer access this server!

Damn. Continue reading