Nginx
Nginx FastCGI Timeout
Nginx returns 504 Gateway Timeout when PHP-FPM or FastCGI backend takes too long to respond.
Published guide archive
Browse the latest published troubleshooting workflows
Move through published fixes 15 at a time without losing the newest-first archive order.
VS Code
VSCode Workspace Trust Issue
VSCode restricts features like debugging and extensions when workspace is not trusted for security.
Database
Database Transaction Log Full
Database operations fail when transaction log (WAL/T-log) cannot grow due to disk space, truncation issues, or growth limits.
Messaging
Fix Fix Nats Connection Refused Issue in Messaging
Troubleshoot Fix Nats Connection Refused issue in Messaging with targeted checks for logs, configuration, identity, dependencies, and rollback.
Elasticsearch
Elasticsearch Analyzer Not Tokenizing
Elasticsearch analyzer produces unexpected tokens when custom analyzer configuration, char filters, or tokenizer settings are incorrect.
Hosting
Fix Fix Hosting Vps Sudo Not Working Issue in Hosting
Troubleshoot Fix Hosting Vps Sudo Not Working issue in Hosting with targeted checks for logs, configuration, identity, dependencies, and rollback.
Frontend
Fix Fix Frontend Angular Template Binding Error in Frontend
Troubleshoot Fix Frontend Angular Template Binding error in Frontend with targeted checks for logs, configuration, identity, dependencies, and rollback.
Elasticsearch
Fix Fix Solr Collection Down Issue in Elasticsearch
Troubleshoot Fix Solr Collection Down issue in Elasticsearch with targeted checks for logs, configuration, identity, dependencies, and rollback.
Identity & Access
Fix Fix Iam Rbac Permission Denied Issue in Identity & Access
Troubleshoot Fix Iam Rbac Permission Denied issue in Identity & Access with targeted checks for logs, configuration, identity, dependencies, and rollback.
PHP
Fix PHP JSON Decode Error and Malformed JSON Handling
Resolve PHP JSON decode errors when parsing malformed or invalid JSON data with proper validation, error handling, and debugging techniques.
WordPress
WordPress Cron Not Running
WordPress scheduled posts not publishing and automatic tasks not running when wp-cron disabled, blocked, or misconfigured.
Apache
Apache Mod PHP Not Executing
Apache serves PHP files as downloads or raw text when mod_php not loaded, handler misconfigured, or PHP-FPM not connected.
Linux System
Fix Fix Linux Namespaces Not Creating Issue in Linux
Troubleshoot Fix Linux Namespaces Not Creating issue in Linux with targeted checks for logs, configuration, identity, dependencies, and rollback.
Network Security
WAF Geoblock Not Filtering
WAF geo-blocking rules not blocking traffic from specified countries due to GeoIP database issues, rule misconfiguration, or header spoofing.
Kubernetes
Fix Fix Etcd Leader Election Issue in Kubernetes
Troubleshoot Fix Etcd Leader Election issue in Kubernetes with targeted checks for logs, configuration, identity, dependencies, and rollback.