How to Tune PHP-FPM for a Server
Configure PHP-FPM by measuring worker memory, concurrency, queue, slow log and CPU/RAM capacity and execute the changes stepwise and reversible.
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What Is the Linux OOM Killer and Why Does It Stop Services?
Identify the OOM Killer from the kernel log, cgroup, and RAM process, separate the victim process from the stress factor, and fundamentally modify capacity, limit, and…
Why Is the Server Disk Full? Logs, Deleted Files, Docker, and Inodes
Recognize Linux Disk overflow with filesystem, inode, directory, log, deleted file open, Docker and database; without rushing to delete production data.
How to Find the Cause of High Server Memory Usage
Analyze Linux RAM usage with available, cache, swap, RSS/PSS, process, container and OOM and separate the memory leak from normal memory usage.
How to Find the Cause of High Server CPU Usage
To find the cause of the CPU overloading Linux, check the load, user/system/iowait/steal, process, thread, container, PHP and Query in the event timeline.
Why Does a Website Suddenly Go Down on a Server?
When the site goes down, check DNS, network, TLS, Nginx, application and database layer by layer, save evidence, and recover the service with the least risk.
How to Fix a 504 Gateway Timeout Without Raising Timeouts Blindly
Fix 504 by identifying the payment gatewayway builder error, upstream time, PHP row, query database, external API and limit each layer; not increasing arbitrary timeout.
How to Fix a 502 Bad Gateway Error in Nginx
To fix 502 Nginx, match the error time with the error log and check the upstream status, PHP-FPM, socket, permission, worker capacity and proxy chain.
How to Configure Nginx for WordPress
Check Nginx WordPress with server_name, root, try_files, PHP-FPM, sensitive file restrictions, TLS, cache and log settings, and before reloading with syntax test.
Nginx vs. Apache: Architecture, Compatibility, and Operating Cost
Compare Nginx and Apache in terms of processing model, static file, PHP, rewrite,.htaccess, reverse proxy, security and team capabilities, and choose wisely.
What Does Initial Linux Server Configuration Include?
The basic configuration of Linux includes inventory, patch, SSH, firewall, user limit, time, backup, log and monitoring; in secure order and recovery path.
How to Set Up an Ubuntu Server for a Website
To set up the Ubuntu server securely, prepare access, patch, SSH, firewall, web server, TLS, backup, monitoring and rollback before DNS is transferred.