Fix “Error ‘[Errno 17] File exists’ processing ssl/ssl_certificate.pem” When Restoring Mail-in-a-Box

When restoring a blank Mail-in-a-Box, you may get this error: Solution to fix the problem is to run this command before running the restore: After deleting this directory, the restore should run without problems.

Fix “Error ‘[Errno 17] File exists’ processing ssl/ssl_certificate.pem” When Restoring Mail-in-a-Box Read More »

Install Sentry on Ubuntu 18.04 Using Nginx and Let’s Encrypt Certificates

This tutorial guides you through the setup process of Sentry (onpremise / self hosted) using Ubuntu 18.04, nginx as webserver and LetsEncrypt certificates. First step is to get Ubuntu 18.04 up and running. In my case, I use a cloud server from Hetzner. You should use a server with at least 4GB or RAM, because […]

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Get Twig Version

If you want to check the used version of Twig, you can enter this line to one of your template files: Another option is to check the file vendor/twig/twig/lib/Twig/Environment.php or vendor/twig/twig/src/Environment.php, depending of the version you use. In one of the two files, a there is a version constant:

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