Posts Tagged ‘cron’

“Crons” aka “Cron Jobs” or “Crontabs” help power a variety of advanced web-based applications. See Crontab

How do I disable Webalizer from Webmin?

How do I disable Webalizer?

Webalizer is a program which analyzes and generates statistics and reports about your webserver’s logs. It can be massively useful or it can be massively problematic. Very large log files can cause problems, and webalizer itself can cause problems even when not configured to process any log files.

Because of this it’s often necessary to disable it from running, as it can cause your server to hang.

1) Uninstall – Webalizer is a package which you can view in Webmin. Login to Webmin and click System > Software Packages and search for “webalizer”. You can uninstall webalizer completely from here.

2) Disable Cron – If you just want to disable it from running without uninstalling it, remove the cron entry under /etc/cron.daily – it may be called “00webalizer”.

Glossary: Queue

A queue, in our context, is a way of lining up requests, and having a program that processes those. Basically, it’s a way of saying “do this later”. It might still be done immediately, but for a variety of reasons it may not happen immediately. The purpose of the queue may not to be “do it later”, but that will happen regardless. The purpose of a queue can be anything from fixing a performance problem, to preventing performance spikes, to delaying a request a minimum amount of time or a number of other reasons. (more…)

PHP/MySQL Performance Series: Part 4 – Schedule that Cron

Crons can solve a lot of problems, but they can also create a lot of problems so be careful.

Usually you’ll make a cron to fix a specific problem, or to create a queue. There aren’t a whole lot of “standard” crons that we can discuss. (more…)