Coffeerings Articles

Mac OSX Leopard - Clear DNS Cache

As of OSX 10.5 Leopard to clear your machines DNS cache use the command:

dscacheutil -flushcache

This replaces the old command

lookupd -flushcache

ab - HTTP Benchmarking

Apache offers a very user friendly benchmarking tool called 'ApacheBench (ab)'. It's designed to give you an idea of how your current apache setup is performing and comes bundled with the standard Apache source distribution....read more

Getting your SPF Record Right

When trying to deliver large quantities of email to Hotmail there are a number of preparations to make.  One of the most important is to set up an SPF record for the sending domain.  The function of the SPF record is to...read more

Deleting a Directory Full of Files

I recently had a problem with 'rm ./*' returning the error '/bin/rm: Argument list too long'. The problem had previously popped up when removing the contents of a large cache directory and again when deleting a large mail spool....read more

PHP-WAX in More Detail

As a quick introduction to PHP-WAX have a look at these users guides.  The guides have been rescued from an internal wiki that had been overrun with spam.  Most of these do...read more