nginx
nginx Redirect HTTP to HTTPS
As soon as you configure a website via SSL (https), you should also make sure that the forwarding from http to https works. Redirection is important because it is rated better by Google than http and [...].
Gitlab
Gitlab backup to external storage / mounted CIFS directory
There is probably nothing more important to a developer than his source code. Accordingly, you should also take care of backups of your versioning software. In my case, this is Gitlab. Gitlab already offers a backup function [...].
debian
Proxmox 4.3 on Hetzner Server UPDATE
In this article I described how to install Proxmox 4.2 on a Hetzner server. In the meantime, there have been several updates of Proxmox, including to version 4.3. To perform an update, it is sufficient to run apt-get update [...]
ssl
Secure Sophos XG with valid SSL certificate
I have been using a Sophos UTM at home for several years, and recently got the new XG model. Since the error message for an invalid certificate always bothers me, I took the time to get a valid certificate [...]
debian
nextcloud on Debian Stretch/Jessie with Lets Encrypt SSL, nginx, MySQL, php7 (among others also for Raspberry Pi)
⇨ Update January 2018: Updated for nextcloud 13 ⇦ In this tutorial I describe how to install nextCloud (the modern successor of Owncloud) on a fresh Debian Stretch (Debian 9) or Debian Jessie (Debian 8). […]
munin
Monitor Debian Server with Munin
Munin is ideally suited for monitoring one or more servers. A distinction is made depending on the use case: * **munin** is installed on only one server and collects the various values from all servers, stores them [...]
General
Linux DDoS attack detection
DDoS attacks are unfortunately no longer a rarity. Nowadays, a server can be attacked with little effort. To determine whether your own server is currently under attack, you can use the following commands: netstat -anp |grep 'tcp\|udp' [...]
General
Invisible reCAPTCHA
Goolge has started rolling out a new version of reCAPTCHA. Selected users have been invited to test this new feature. I am one of them. It's a shame that the new CAPTCHAs can't be initialised via Javascript, [...].
debian
Secure Gitlab with Lets Encrypt SSL Certificate
You can use Gitlab on your own server with little effort. I did it this way because hosted Gitlab can sometimes be very slow and because I feel more comfortable when I [...]
debian
Secure Proxmox with Lets Encrypt SSL Certificate
The web interface of Proxmox 4 (and 5) can be secured in just a few steps with a valid free Lets Encrypt SSL certificate. The prerequisite is a port 80 of your web server that can be reached from the internet and an installed [...]