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Mount an Open-Xchange InfoStore on Linux

Open-Xchange is an all-in-one Groupware solution, providing not only email, but also a CalDAV calendar, tasks, file- or InfoStore and an online document editor. All shareable with other users. The InfoStore is used to save documents online, in the cloud. This article is about accessing and mounting your Open-Xchange remote WebDAV InfoStore file share, on Linux with mount.davfs or Dolphin GUI file manager.

Bash: Grep through a large number of files – “Argument list too long”

The other day I was searching for a particular email file in an Maildir on one of our mail servers. Knowing only the From address, I thought I’d use grep. Unfortunately it failed and gave me an error: /bin/grep: Argument list too long. Here is how to overcome this grep error…

Check IP address blacklist status in Bash

Here is a Linux Bash shell script to check whether an IP address is listed in a DNSBL blacklist, or RBL. This is a modified version of a by J65nko posted Bash script to check an IP address reputation status in several blacklists. I’ve added HttpBl as backlist and an API key is required for this list. Using this script in Bash you can quickly test if an IP address is blacklisted.