Performance & Security
Practical tutorials focused on improving server speed, stability, and securing Linux and Windows VPS.
32 articles
How to troubleshoot and identify the reasons for a slow Linux, Container and Storage VPS?
Managing VPS memory usage
How to check your VPS resource usage?
How To Install Zabbix on Ubuntu and Debian
How To Install Zabbix on AlmaLinux 9 and Rocky Linux 9
[Begginers] Managing Firewall with Iptables
[Apache] Installing SSL Certificate to VPS
Modifying SWAP Memory
[Ubuntu/Debian/CentOS/Fedora] How to limit CPU usage for a process?
What to do if your server is used for spamming
How to set up and use SSH keys
[Ubuntu/Debian] Setting Up SPF and DKIM
[How Do I Find Out?] How Much Disk Space I Have Left?
[How Do I Find Out?] How Much of My Memory Is In Use?
Secure Mail Server Checklist
Identify a DoS/DDoS Attack
Working with a Compromised VPS
Use PING to Find a Network Problem
TCP BBR activation on Ubuntu server
Learn how DKIM works and how to install it!
[Netdata] Get ready with server monitoring
Enabling Cloudflare protection
Lynis installation on Ubuntu
How to enable ping in the Windows server firewall?
Using 'htop' to Monitor System (Better Alternative to 'top')
[How Do I Find Out?] Which Program Is Using My Bandwidth?
Testing network speed with iperf3
Tools to Encrypt/Decrypt and Password Protect Files
Installing Fail2ban for protection from brute-force attacks
Install OpenVPN 3
[Ubuntu] Let's Encrypt for Apache
Secure VPS Tips