Articles in this category
Setting PHP memory_limit with EasyApache 4
When setting the PHP memory_limit in WHM, it applies only to the specific PHP version. With EasyApache 4, multiple PHP versions can run simu…
Site Performance Testing Tools
Google PageSpeed Insights analyzes page performance on mobile and desktop, offers improvements, and uses Lighthouse; WebPageTest offers deta…
Spam Management
Combat spam with our central resource guide. Learn to configure filters, manage quarantines, and protect your inbox from junk and phishing.
Swap Memory
Linux swap memory explained: Its role, benefits, & risks. Learn to check usage (`vmstat`, `sar`), manage swappiness, and add a swap file.
System activity reporting with sar
sar monitors Linux system activity (CPU, memory, I/O) over time. It's crucial for historical performance analysis and troubleshooting server…
Testing Network Performance with iperf
iperf is a network troubleshooting tool. It measures bandwidth, delay, jitter, and packet loss between two points, helping diagnose network…
Testing Your Network Speed with ping
Test the speed of your network. Pinging a domain is when you send small packets of information to a target server and wait to…
Testing Your Network’s Speed and Reliability
Test your network speed and connectivity using Liquid Web's test files (10MB-1000MB) from Lansing, Phoenix, and Amsterdam, plus ping tests a…
Troubleshoot disk space issues
Linux disk full? Learn to find large files/dirs (`df`, `du`, `find`) & high inode usage. Guide covers cleanup for common paths & cPanel spec…
Troubleshooting — Memory Limit Error
The PHP memory_limit sets a cap on memory use per script, preventing server crashes from scripts consuming excessive RAM.
Troubleshooting Guide: PHP-FPM and max_children
Fix slow sites by troubleshooting PHP-FPM max_children on cPanel, Plesk, & InterWorx. Learn to find logs, adjust settings safely, & check se…
Understanding IOwait
Learn what IOwait is, why it slows servers, and how to identify the processes causing it using iostat, block_dump, and iotop tools.