http://www.badllama.com/content/monitor-varnish-zabbix
Handy little script to monitor varnish stats from zabbix. Awesome.
http://stackoverflow.com/questions/10731099/byobu-hard-status-line-scrolls-the-screen-when-updating
Explains how to fix putty so it plays nicely with byobu. Requires two settings, Windows > Translation > UTF8, and Terminal > Keyboard > XTerm R6. Haven't been able to verify, but reports suggest it works.
http://copperegg.com/
Yet another monitoring app. Copper Egg combines real user monitoring, generic metric logging, server monitoring and maybe other stuff(?) into one application. Pricing starts at $19/month. Not unreasonable.
http://www.intodns.com/
Really detailed tool that diagnoses in great detail each step of the DNS resolution process for a domain. Free and invaluable.
http://www.zabbix.com/forum/showthread.php?t=25265
A zabbix monitoring script for varnish ported from cacti.
http://www.unix.com/shell-programming-scripting/9020-how-log-top-command.html
Useful forum post that explains the `top -b` option, making top output text suitable for piping / writing to file, like `top -bn1 | mail`...
http://runslikeclockwork.com/pages/monit_aggregator
A free hosted version of the open source monit-aggregator written by Matt Fawcett. Appears to be free with no node restriction.
https://github.com/mattfawcett/monit-aggregator
Source code of monit-aggregator by Matt Fawcett / runslikeclockwork.com. He offers a free hosted version at that site.
http://www.pagerduty.com/
Takes alerts from monitoring systems and sends emails, phone calls and SMS messages. Handles on-call schedules, escalation, acknowledgement, etc.
http://www.linuxhowtos.org/System/iosched.htm
Article explaining how to set a scheduler on linux. Handy. :)
http://www.linuxforums.org/misc/using_top_more_efficiently.html
A guide on how to get the most of out the linux top utility. Includes a description of the column names, and other tips & tricks.
