Increase from 300 G to 400 G using the same storage, but leverage LVM on GPT inside the VM.
lvextend -L +100G /dev/mapper/guests--lolguest
virsh qemu-monitor-command lolguest info block --hmp
virsh qemu-monitor-command lolguest block_resize drive-virtio-disk0 400G --hmp
sgdisk -e /dev/vda
gdisk /dev/vda # <-- create partition 5
vgextend ubuntu-vg /dev/vda5
lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv
Always watch out for paths, partition numbers and names!
This article explains how to get your own IP addresses and why you might want them. I try to make it as information dense as possible.
Continue reading “How to get IP addresses?”
I got a couple of small computers laying around which are more like development systems and mostly lab environments. However, these are not running 24/7 and since I’m traveling alot I’m not always close to those computers. Let me show you what Wake on LAN (WOL) is and how you can make it Wake on WAN over IPv6.
Continue reading “Wake on LAN? Wake on WAN!”
Recently I looked into deavmi’s project named CRXN where he’s leveraging yggdrasil’s peer-to-peer VPN routing mechanism to build an overlay network using IPv4. Since several of my online services are not connected to yggdrasil, I was wondering if it’s possible to just NAT64 CRXN into IPv6. Sure it worked quite fine, I’ll show you how we pulled that off.
Shitty pro-tip: You can also use this instruction to expose your super secured enterprise network to the public. Instead of yggdrasil you use your corporate VPN.
UPDATE: I had to setup mss clamping. Check the last paragraph how I did it. I also fixed some errata in my systemd service file.
Continue reading “Subsetting CRXN into the real Internet”
TL;DR: Use ISO 3166-1 alpha-2 for countries, use ISO 4217 for currencies and currency codes start usually with a country code.
Continue reading “Quick guide to country and currency codes”
Kleine Anleitung, wie man von he.net/tunnelbroker.net eine BGP-Sitzung auf CentOS 7 mit bird 1.4+ einrichtet.
Interessant für jeden, der IPv6 mit eigenen Adressen sprechen möchte, aber keine Chance hat, an IPv6-Transit zu kommen.
Continue reading “CentOS 7, bird 1.4+ und tunnelbroker.net BGP-Tunnel”