15 posts matching “security” in VPS · Clear
Install Elasticsearch on a VPS the right way: fix the vm.max_map_count bootstrap error, size the JVM heap correctly, and lock down access before going live.
28 July 2026 · 7 min · 16 views VPS Automatic Security Updates on a VPS: Setting It Up SafelyLearn how to configure unattended-upgrades on your Ubuntu/Debian VPS to auto-install security patches without breaking services or triggering surprise reboots.
18 July 2026 · 5 min · 9 views VPS Block Traffic by Country: CSF and Cloudflare Geo-BlockingCut spam and brute-force logins by blocking traffic from specific countries using CSF's CC_DENY on a VPS or Cloudflare firewall rules - step by step.
29 August 2026 · 7 min · 23 views VPS Windows VPS RDP Setup: Fix Connection Errors, Lock It DownFix Windows VPS RDP connection errors and stop brute-force login attempts with port changes, NLA, firewall rules, and strict account lockout policies.
27 August 2026 · 6 min · 9 views VPS SSH "Permission Denied (publickey)": Causes and the FixLocked out of your VPS with SSH "Permission denied (publickey)"? Every real cause - wrong key, bad permissions, SELinux, sshd_config - and the fix for each.
21 August 2026 · 6 min · 19 views VPS Nginx Rate Limiting: Stop Bot Floods with limit_reqLearn how to configure Nginx limit_req to stop bot floods and brute-force attacks on your VPS, with real config examples, testing steps, and common mistakes.
20 August 2026 · 6 min · 14 views VPS CentOS End of Life: How to Migrate Your VPS to AlmaLinuxStill running CentOS 7 or 8 past its end-of-life date? Here's how to safely migrate your VPS to AlmaLinux or Rocky Linux without losing data or uptime.
7 August 2026 · 5 min · 9 views VPS SSH Two-Factor Auth on a VPS: Google Authenticator + PAMAdd TOTP two-factor authentication to SSH logins on your VPS using PAM and Google Authenticator, including the fix for the lockout risk everyone hits first.
30 July 2026 · 6 min · 13 views VPS Docker Bypassing Your UFW Firewall? Here's the Real FixPublished Docker container ports staying open even after UFW denies them? Learn why Docker bypasses UFW via iptables, and how to actually lock it down.
30 July 2026 · 7 min · 25 views VPS Stop WordPress Brute-Force Logins with a Fail2Ban Jailwp-login.php getting hammered by bots? Set up a custom Fail2Ban jail on your VPS to block WordPress login brute-force attacks right at the firewall level.
21 July 2026 · 6 min · 12 views VPS Set Up a WireGuard VPN on Your VPS: Full GuideSet up a self-hosted WireGuard VPN on your VPS: install, keys, wg0.conf, firewall rules, client config, and fixes for handshake and routing problems.
21 July 2026 · 6 min · 16 views VPS VPS Malware Scanning: ClamAV and rkhunter Setup GuideSet up ClamAV and rkhunter on an unmanaged VPS to catch malware and rootkits early, cut false positives, and automate scheduled scans with cron jobs.
19 July 2026 · 6 min · 16 views VPS CSF Firewall Setup in WHM: Securing a cPanel VPS ServerSet up ConfigServer Security & Firewall (CSF) in WHM the right way: correct ports, testing mode, LFD alerts, and how to recover if you lock yourself out.
15 July 2026 · 6 min · 16 views VPS VPS Firewall Basics: Set Up UFW and Close Open PortsLearn how to set up UFW on your VPS, allow only the ports you need, and stop random port scans from finding an open door into your server.
12 July 2026 · 6 min · 15 views VPS SSH Hardening on Your VPS: Keys, Sudo User & Fail2BanStop SSH brute-force bots on your VPS: set up key-based login, disable root access, and configure Fail2Ban step by step.
11 July 2026 · 5 min · 14 views