Performance & Security
Practical tutorials focused on improving server speed, stability, and securing Linux and Windows VPS.
51 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 (Linux)
- 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
- [Ubuntu] Let's Encrypt for Nginx
- How To install Nginx with Let's Encrypt on AlmaLinux 9 and Rocky Linux 9
- How To install Apache with Let's Encrypt on Rocky Linux 9/ AlmaLinux 9
- Optimize the MySQL server
- How To Connect To VNC Server Using SSH Tunnel
- WireGuard Easy VPN
- Testing network speed with iPerf3 on Windows Server
- Understanding root vs. sudo. And why is direct root login dangerous?
- Five things to do after buying a VPS server
- How to protect against Brute-Force attacks
- How to avoid wasting VPS resources
- Initial Linux VPS caching tips
- Common VPS server security mistakes
- Linux VPS file permissions
- Cloudflare error numbers
- How to use systemctl and journalctl on a VPS Server
- Managing a Cloudflare DNS zone
- Cloudflare: "I'm under attack!"
- Access limitation to the VPS server