Linux monitoring & troubleshooting tools

Centmin Mod is provided as is, so troubleshooting load issues is left to end user to do. However, there's many linux tools and scripts that can help you figure out what was causing the load issues and when.

If you're providing info on this forum, more info might be helpful

1. What version of Centmin Mod ? .07 stable or .08 beta ? If .08 beta when was it installed and when was last time you updated the .08 beta code (there's constant updates to the code).
2. What's your VPS/Server hardware specifications ? cpu type ? memory available ? disk space ?
3. Who's your web host ? Different hosts have different limits for server resource usage and some are more restrictive that others so it could just be their resource usage policy you tripped which may or may not be restrictive. If restrictive, then real solution would be finding a better web host. If not restrictive, then it's finding out what caused high cpu load.

Tools and commands you will want to read up on and learn for basic system admin tasks and troubleshooting.

• 20 Command Line Tools to Monitor Linux Performance
• 13 Linux Performance Monitoring Tools - Part 2
• 80 Linux Monitoring Tools for SysAdmins - Server Density Blog
• Amazing ! 25 Linux Performance Monitoring Tools
• http://www.cyberciti.biz/tips/top-linux-monitoring-tools.html
• My mysqlmymonlite.sh script can help with that mysqlmymonlite.sh Addon | Centmin Mod Community README text file has instructions for setting up a cronjob to email you reports i.e. every 10/15min or every hour.

Notes:

• Centmin Mod already installed Glances tool. It can be invoked from SSH command glances or top2. Official Glances site at nicolargo.github.io/glances/ and documentation here.

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• There's also discussion thread for other monitoring tools at Sysadmin - monitoring and alert tools?
• Also check out Nginx Amplify Nginx - Nginx Amplify Open Source Monitoring Service example for monitoring PHP-FPM PHP-FPM - How to configure PHP-FPM Status Monitoring with Nixstats & Nginx Amplify
• Nixstats and Nodequery are 2 others Monitoring Server Statistics & Uptime - Centmin Mod LEMP Web Stack for CentOS