Fail2ban

This article is based on the original NGINX blog post by Liam Crilly of F5, published September 19, 2017. You may not realize it, but your website is under constant threat. If it’s running WordPress, bots are trying to spam you. If it has a login page, there are brute-force password attacks. You may also consider search engine spiders as unwanted visitors. Defending your site from unwanted, suspicious, and malicious activity is no easy task. Web application firewalls are effective tools …

After being busy enough that I didn’t have time to create challenges and write down how to complete these challenges on this blog, this time we will discuss a little about fail2ban and how to configure it. Generally fail2ban is used to ban IPs that fail to authenticate up to the maximum limit stated in the configuration and this IPS is very effective in preventing attacks that will occur on the server, such as bruteforce attacks on SSH ports (22), FTP (21), SMTP (25), etc., even other …