Well, I've seen quite a few requests for help in this forum now and I thought I'd gather a number of tools you can use to report your status. This will help others help you faster. :D That and additional ability to help yourself as well.

Helpful information
The following are information that's often crucial to diagnosing problems.

• What is the environment you are running your website from?
• IPB Hosting / Shared hosting / VPS / Cloud / Dedicated Server?
• If VPS/Cloud/Dedi, what are your cpu, ram and disk availability?
  

Tools
The following are tools you can run in order to gather further data. These can be run from ssh and is only accessible for vps, cloud and dedicated servers for linux distributions.

top - Top processes (very useful for any scenario) | top is usually available in all linux OS distros by default.

top (this will constantly output your server's general status as well as top processes, default in CPU usage order)

top n -1 (same as above, but will output your first stat instead of constant loop)

If you'd like more colourful version. There is also htop (usually not available by default. Can get here: http://htop.sourceforge.net/ or rpmforge ) iostat - Input/Output Statistics (very useful in diagnosing disk usage) | iostat is part of sysstat package.

iostat (this will output general stats regarding IO)

iostat -x 10 5 (this will output extra information for 5 times total with 10 second intervals. First stat is always "since boot" and after is since last report)

sar - System Activity Reporter (Displays system performance over time) | sar is part of sysstat package

sar

mpstat - Multiprocessor Usage (Displays system stats in relative to CPU) | mpstat is part of sysstat package

mpstat

Apache Status (Outputs the apache status) | apachectl status, as name suggests requres apache to get the stats. You will also need to have a shell browser to run.

apachectl status (This outputs the simplified current status)

apachectl fullstatus (This outputs the detailed current status. Please be warned that this will list all users and their requests. So, you will want to remove any IP address and further private information)

Connections

netstat -an | grep :80 | wc -l (This lets us know how many people are connected to your server on port 80 [http])

Uptime (How long you've been up)

uptime

vmstat - virtual memory statistics (This is actually not related to virtualization. This is about your swap)

vmstat

free (Shows your memory statistics)

free

free -m (In megabytes)

free -g (In gigabytes)

beancounters (Shows your limits) | Only for those with VPS/Cloud systems

cat /proc/user_beancounters

ifstat (Gives live information about network usage on each network interface)

ifstat

iftop (Similar to ifstat, but per user and top behavior)

iftop

mysqltuner (Gives information and suggestions about your current mysql configuration) | Available at below address Available at: http://mysqltuner.pl/ You can run the mysqltuner with perl (chmod to 755 and run or call with perl) and type in your administrative mysql user id/pass. mysqlmymon Available at: http://mysqlmymon.com/ Similar to mysqltuner, but lot more information about everything else too! This is mostly meant to serve as an all-in-one tool. MySQL Workbench http://www.mysql.com...ucts/workbench/ This is a GUI tool that helps you administer, diagnose and plan. (Complete) Monitoring Solutions Nagios (Everything - heavy learning curve) http://www.nagios.org/ Cacti (Network) http://www.cacti.net/ vnstat (Much more simple network usage logger) http://humdi.net/vnstat/ Useful to Know Settings MySQL settings | Only if you have mysql The settings are often found at: /etc/my.cnf Outputting your current information will help others identify problems. Apache/HTTPD settings | Only if you have apache The settings are often found at: /etc/httpd/conf.d/httpd.conf If you have WHM/cPanel, please look inside WHM instead. Outputting your current information will help others identify problems. Nginx Settings | Only if you have nginx The settings are often found at: /etc/nginx/nginx.conf Outputting your current information will help others identify problems. PHP Information (information regarding your current php build) | Available only to PHP users... for obvious reasons. To get full php information, there are 2 easy ways. One, make a php file with the below contents and save.

<?php phpinfo(); ?> 

Or via shell

php -i

I'll add more if people suggest other tools.

iotop to check I/O on your drives
http://guichaz.free.fr/iotop/

mytop to check MySQL queries
http://jeremy.zawodny.com/mysql/mytop/

3rd party tool for server security hardening to be used combined with all prior tips: https://cisofy.com/lynis/ ... great guide at https://www.digitalocean.com/community/tutorials/how-to-perform-security-audits-with-lynis-on-ubuntu-16-04

 

@kmk For Nginx try centminmod for a vps or dedicated - then use Jimmys IPS nginx config

Highly recommend VestaCP.com for Ubuntu 16.04 (not yet available for 18.04) 

Edited August 1, 20186 yr by rhyker2u
typo