<p>I’m currently rebuilding my main Windows machine after it had become close to unusable. Given that I upgraded it multiple times from Windows 7 all the way to Windows 11 without ever reinstalling the OS, this shouldn’t have come as a major surprise. Either way, this is the reason for the sudden outburst of Windows related posts so I can go and refer to my blog as my Internet Notes repository.</p>

<p>On my Windows machine, I’ve mostly moved from using separate virtual machine products like Hyper-V or Virtualbox to have access to a Linux machine to using WSL. The PC is dual-boot with a separate Linux install anyway, but sometimes I just want to quickly fire up a Linux machine, take care of a couple of quick tasks and go back to Windows.</p>

<p>Version control system migrations are a fact of life for developers in any longer lived codebase. In fact, I’ve had a hand in quite a few migrations as newer, more workable version control systems became available. Also, like a lot of developers, I’ve got fragments of source code dating back quite some years floating around on various servers and development machines of mine. Not necessarily code that is still being used, but still code that I don’t want to just delete…

<p>While I was implementing a few more changes on my web server - mostly adding the sorely needed blacklistd configuration for sshd - I noticed that NGINX’s log was showing occasional errors when trying to contact the <a href="https://posativ.org/isso/">Isso</a> process. They all had one thing in common, namely that they were all trying to contact ISSO via IPV6 as the server has both stacks enabled. Turns out that isso only listens on an IPV4 socket and I could not find an obvious way to…

<p>I may have mentioned this before - I do run my own virtual servers for important services (basically email and my web presence). I do this mostly for historic reasons and also because I’m not a huge fan of using centralised services for all of the above. The downside is that you pretty much have to learn at least about basic security. Over the 20+ years I’ve been doing this, the Internet hasn’t exactly become a less hostile place. Anyway, Elliptic Curve Certificates, what…