Security, Hardening & Backups

Trace SSH Brute-Force Attacks and Cut High Linux CPU Load

Stop SSH brute-force storms draining CPU on Ubuntu/Debian servers. Trace failed logins, harden sshd_config, move off port 22, enforce key-only auth, and know when Fixwebnode should take over remotely...

Fixwebnode Support

Oct 29, 2026 9 min

Security, Hardening & Backups

Trace and Secure Exposed .env Files on Australian Servers

Stop public .env and API key leaks before scrapers do. Learn curl checks, web-server denials, permission locks, and rotation steps—plus when Fixwebnode should take over remotely.

Fixwebnode Support

Oct 28, 2026 11 min

Emergency Fixes & Security

Trace and Remove Linux Malware Backdoors and Hidden Root Users

Find hidden cron loops, rogue accounts, and web-user backdoors on Ubuntu/Linux servers. Practical SSH diagnostics, cleanup steps, and when Australian site owners should book Fixwebnode remote support.

Fixwebnode Support

Oct 28, 2026 10 min

Performance & Troubleshooting

Trace and Fix Nginx 502 Bad Gateway and Upstream Timeouts

Nginx returning 502 or upstream timeouts? Learn how to read error logs, tune proxy timeouts and buffers, restart backends, and know when Fixwebnode should take over remotely in Australia.

Fixwebnode Support

Oct 27, 2026 8 min

Performance & Troubleshooting

Trace & Fix Linux Disk I/O Latency from PHP Session Bloat

SSH in, count session files, and clear disk I/O stalls before PHP session directories freeze your server. Practical commands for Australian site owners—plus when to book Fixwebnode remote support.

Fixwebnode Support

Oct 27, 2026 9 min

Performance & Troubleshooting

Trace and Fix InnoDB Row Locks and Deadlocks on MySQL

Sales frozen by InnoDB locks? Learn how to SSH in, run SHOW ENGINE INNODB STATUS, isolate the blocking thread, and safely KILL it—plus when Australian teams should call Fixwebnode.

Fixwebnode Support

Oct 27, 2026 9 min

Linux, Server Administration & Control Panels

Trace and Fix systemd Service Restart Loops on Linux

Stop infinite systemd restart death loops before they thrash your server. Learn how to read journalctl, cap restart bursts, and restore queue workers and background pipelines on Linux hosts in Austral...

Fixwebnode Support

Oct 26, 2026 9 min

Performance & Troubleshooting

Trace Buffer Bloat & Packet Drops on Interplanetary Routers

Buffer bloat and packet drops wreck long-haul links. Learn how to diagnose queues with tc, switch to fq_codel, tune txqueuelen, and know when Fixwebnode should take over in Australia.

Fixwebnode Support

Oct 26, 2026 10 min

Performance & Troubleshooting

Trace and Fix Nginx FastCGI Cache Leaks and Sessions

Stop FastCGI cache leaking private sessions across tenants. Diagnose cookie bypass gaps, purge corrupted keys, and lock multi-tenant privacy on Australian Nginx hosts—with copy-paste commands and when...

Fixwebnode Support

Oct 25, 2026 11 min

Linux, Server Administration & Control Panels

Trace & Fix Asymmetric Routing Loops on Multi-Homed Linux

API calls dying mid-handshake? Learn how to SSH in, read ip route show and rp_filter, kill asymmetric routing loops, and restore clean server packets—practical steps for Australian multi-homed hosts.

Fixwebnode Support

Oct 25, 2026 8 min

Emergency Outage & Crash Recovery

Trace Bit-Rot on Interplanetary Drives: dmesg to e2fsck

Storage gone read-only after cold-soak corruption? Learn how to read dmesg, scan dead flash with badblocks, and repair ext4 with e2fsck—plus when Australian operators should book Fixwebnode on-site.

Fixwebnode Support

Oct 25, 2026 9 min

Performance & Troubleshooting

Trace and Fix CORS Policy Blocks with curl on AU Servers

CORS errors blocking your API? Learn terminal curl header tests, nginx/Apache fixes, and when Australian teams book Fixwebnode for remote server support.

Fixwebnode Support

Oct 24, 2026 9 min