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Hi!

My homepage was on http://www.mathematik.uni-stuttgart.de/~floeff for many many years, since I first had set it up (at the time writing HTML code in the vi editor and using the very first Mosaic web browsers on a RS/6000 Unix machine) back in 1993 or 1994… but in 2018 the University seems to have put some control in place and I cannot use their server any more.

So I decided it was time to grow up and run my own server. First I was thinking about running it in my home… but then I found that the security risks in opening the Firewall on my OpenWRT/Tomato home router were higher than the benefits.

I opted for renting a VPS hosted by my friends at OVH and I installed state-of-the art webservers and applications on it (basically, OpenVPN, nginx and WordPress).

But then I made a really stupid mistake, pressed the wrong button and reinstalled the debian System on the machine. Of course there was no backup. So I had to do the stuff again, and of course over the few weeks working on this I had learned quite something: It became clear to me that I should really not do the whole UNIX application integration on the machine, but I should use microservices and containers.

So… here I am proudly opening Version 3 of my web presence… running still on an OVH VPS, but this time fully containerised (using docker/docker-compose). 

Needless to say, this time I also got the groundwork right (I hope at least): The website does support HTTP/2 protocol, and it is reachable over IPv6. On the same server, in different containers, I am running a dedicated nginx web server, a nginx proxy to redirect to various containers, a nextcloud container allowing me to do file sharing, and a completely customized OpenVPN instance to allow my Android OTT Set Top Box at home to access the Internet from a special IP address that cannot be tracked easily. While I first was using a free DNS service from spdyn.eu in September 2020 I decided to move over to a DNS registration of my own, and the loeffler.ovh domain was set up.

Blog

NAD 216 THX

My good old (I must have bought it in 1995 or so?) NAD 216 THX power amplifier had a strange problem for quite a while. When the balance was turned all the way to the right, the left speaker continued to play an audible signal. Not really what you’d expect from an “audiophile” Hi-Fi system …

DNS broken

When I started this blog, I decided to use the free DNS service by the guys from SecurePoint in Lueneburg. However it suddently all stopped working. I contacted them and they said my IP address was identified for being a spam source. WTF. So… I decided to spend a bit more money per year on …

Contact

I do not publish phone number or address on this blog, if you want to reach out to me please email me at siegfried dot loeffler at gmx dot net.

Contact

I do not publish phone number or address on this blog, if you want to reach out to me please email me at siegfried dot loeffler at gmx dot net.