On Fedora 38, the version of NetworkMnager is 1.42.8, and the “default” setting for ipv6.add-gen-mode is default. The possible value for ipv6.add-gen-mode is eui64, stable-privacy, default-or-eui64, and default. This blog post is my attempt to understand a bit more about this IPv6 setting addr-gen-mode. On my workstation, the NetworkManager connection in use in this post is called br0. Here are are some commands to display the version number of NetworkManager and the (default) current setting of ipv6....

The Proxmox server running at home only has an IPv4 statically assigned to it. Since I’ve been trying to get all my connected devices at home to get IPv6 assigned, I figured I should try with this Proxmox server next. I’m running Proxmox VE 8.0.4, and it’s based on Debian 12 (bookwarm). The settings for its network interfaces are stored in /etc/network/interfaces: root@pve:~# cat /etc/network/interfaces auto lo iface lo inet loopback auto vmbr0 iface vmbr0 inet static address 192....

Nginx is probably my favorite web server up to this moment, and it runs and serves websites on all of my servers. I should say, I also like Apache web server too, but not as much as Nginx. Today, I need to redirect from one url path to another. It took me a while to get it right, and I’d better write it down before it’s forgotten. This is what I want: https://demo....

I recently got IPv6 running at home, with most devices including my iPhone happily get an IPv6 assigned. My NAS running FreeBSD13.2 currently only has an IPv4 assigned, so I’m going to configure IPv6 for it too. I’m still new to IPv6. The way I have it setup on my router, running OPNsense, is to set the “Router Advertisements” to “Unmanaged” with DHCPv6 disabled. “Unmanaged” for SLAAC (A flag), and SLAAC stands for Stateless Address Autoconfiguration....

If you’re reading this post, it’s quite likely that you’re fully aware that Red Hat provide a no-cost Red Hat Developer Subscription for individuals. With this subscript you can use it run RHEL for free. The subscription only lasts one year, and when it expires it can’t be renewed. You must re-register. I have a test RHEL vm, but I hardly use. So today when I turned it on and logged into it, the following message came up when i tried to update the system:...