Let’s Encrypt has transformed the internet. Every website can now have a free SSL certificate! You can authenticate your website with Let’s Encrypt using the .well-known path but if you have multiple virtual hosts then this can get tedious so Let’s Encrypt made it possible to add wildcard SSL certificates by using DNS to authenticate … Learn more…
Globalization has made cyberattacks much easier 🙁 unfortunately. As a result, you may not want certain countries to visit your site if you mainly get malicious traffic from specific countries that overload your server and slow it down. In this tutorial we will be configuring nginx to use the latest GeoIP database and blocking a … Learn more…
For privacy and vanity reasons you can add custom DNS nameservers using Cloudflare. This tutorial will show you how to add the custom nameservers to Cloudflare and how to get the IP addresses of these new nameservers so you can add them as glue records to your DNS registrar (where you purchased the domain). If … Learn more…
If you forbid certain paths or URLs with nginx to protect content you may want to use fail2ban to ban these 403 requests nginx captures. For example if you have renamed your login page using a plugin then typically the hacker bots will receive a 403 forbidden error when trying to log in. Similarly if … Learn more…
When running your own VPS, security updates are critical for stability. I have shown how to configure automatic security updates on Debian and now it’s time to do it for CentOS. CentOS provide a flag for applying security updates, when combined with yum-cron we can schedule security updates to be automatically installed every day. Configure … Learn more…