Pick our brains...

All posts in Security

How to Recursively Change Permissions, Only Files / Directories, Chmod

Sometimes we have the need to recursively change the permissions, but only for either files or directories.  Here’s a handy way to do this, from the command line. *Note:  Being recursive, these are powerful commands, and can change a whole bunch of things, in a very short amount of time.  Please do . . . Read more

How to Tune SpamAssassin Server-Side Spam Filters

The SpamAssassin server-side spam email filter employs Bayesian statistical algorithms to tell the difference between spam and ham.  As such, these filters do their best when they’re “learned”.  Here are some examples from a sample account. Let’s assume we’re working with a cpanel account called “oicom”, and we want to . . . Read more