Easy: Advanced
These tutorials assumes that you have rock solid understanding of Unix like operating systems and very comfortable with most aspects of the Unix/Linux such as networking/distributed computing environments,routing, firewalls, servers, client/server programming, and the design of consistent network-wide filesystems, load-balancers, security and much more. ( rss feed )
How to set up a firewall using FirewallD on CentOS 8
last updated in Categories CentOS, Linux, Networking, SecurityDebian 10 Set Up OpenVPN Server In 5 Minutes
last updated in Categories Cryptography, Debian / Ubuntu, Linux, OpenVPNUse oathtool Linux command line for 2 step verification (2FA)
last updated in Categories CentOS, Debian / Ubuntu, Linux, RedHat and Friends, Security, SuseConfigure Ubuntu Pi-hole for Cloudflare DNS over HTTPS
last updated in Categories Debian / Ubuntu, OpenVPN, Ubuntu LinuxI installed OpenVPN VPN solutions on Ubuntu for my businesses to secure all data communications. I also set up Pin-hole ad blocker on Ubuntu server along with OpenVPN. How do I force Pi-hole to use Cloudflare DNS over HTTPS (DoH) to increase my privacy and security by preventing eavesdropping and manipulation of DNS data by man-in-the-middle attacks?