Aterfax

CRON time expression validation with regex

If you're looking for a regex expression which can validate the format of a CRON time expression (for most versions of CRON) you've probably had a look at StackOverflow and had to trapse through a bunch of possible expressions which may not quite work.

Credit to Juarez and Slava who collectively derived the expression below here: https://stackoverflow.com/questions/14203122/create-a-regular-expression-for-cron-statement/63729682#63729682

Aterfax

Netbooting the Urbackup restore ISO with Netboot.xyz

Description

The following instructions will allow you to netboot the Urbackup restoration CD/ISO using netboot.xyz and were derived from info at:

• https://forums.urbackup.org/t/restoring-image-from-pxe/205

Note

These instructions assume you are using the Netboot.xyz Docker container.