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Sharing Outlook calendar with Nextcloud

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Sharing Outlook calendar with Nextcloud

I use a personal server running Nextcloud, a cloud solution to access, share and protect files, calendars, contacts, communication and more at home and in enterprise environments. There, I keep my personal calendar, which is synced to a variety of mobile devices. However, at work I am forced to use Microsoft Outlook with Exchange for my calendar and contact. To have access to my work calendar on my personal device would force me to enrol my personal device in a corporate environment. However, that would entail certain policies and restrictions I’m not comfortable with on my personal device. Fortunately, I found a way of sharing Outlook calendar with Nextcloud.

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Delete files older than

It is just one of those things that as an admin, you sometimes come across. There’s a directory somewhere that fills up with clutter. Every day, programs dump temporary files there or users upload stuff and before long, there are thousands of files of debris and cruft. How do you keep this directory neat and tidy? Easy, you just make a small script that will delete files older than x days. Continue reading “Delete files older than”

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Using blacklists with iptables

If you have any kind of system connected to the Internet, you are no doubt aware that no matter how small or unimportant it might seem, it is frequently probed, tested or subject to various attempts at abuse. These attacks come from so many malicious hosts that it is impossible to keep track by hand. So I started looking for a way to implement an automated blacklist to use with iptables. Continue reading “Using blacklists with iptables”

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Migrating spamassassin from db files to MySQL

In this post, we’ll take a look at how to migrate spamassassin from the default db files to a MySQL database. The assumption is that you have a working mail server that already does spam scanning and where spamassassin stores its information in the default db files. In order to improve speed, especially for auto-expiry but certainly also for spam filtering itself, it is advisable to store the data in a faster database. Continue reading “Migrating spamassassin from db files to MySQL”