all about networking
Reading Time: 4 minutesThis post will describe, how to use a reverse ssh tunnel to backup an external device, like a server to your Synology DS via rsync. I have to use the reverse SSH tunnel function, as my DS is behind my firewall at home and my server (which should use the DS for backup) is in … Read more
Reading Time: 4 minutesThis time I would like to show, how to secure the connection between postfix and the client with the help of a certificate by using postfix with TLS support. You can use your own certificate authority for that or a public one. I will use StartSSL to create my certificate and use postfix with TLS. If you … Read more
Reading Time: 4 minutesThis post will describe how to fight against spam on a Scalix system with the help of Postfix. I assume you replaced the Scalix SMTPD with Postfix, as described in this post: How To: Replace Scalix SMTPD with Postfix As the picture above indicates, sometimes, spam could be a good idea, but when talking about … Read more
Reading Time: 5 minutesIn this post I will describe how to replace Scalix SMTPD with Postfix to use the flexibility of Postfix for Spam and Virus fighting.You should read my installation instructions before starting the steps below. You can find the installation instructions for Scalix on a Debian with Postfix here: How to: Install Scalix on Debian using … Read more
Reading Time: 4 minutesOver the last weeks I got the idea to set up my own server. I did this years before, during my study time but when starting to work I was too busy to maintain my server. Now, I regret this and would like to bring this blog to my own server. While doing this, I … Read more