Tag: Linux

How to easily run graphics-accelerated GUI apps in LXD containers on your Ubuntu desktop

Note: This post is about LXD containers. These are system containers, which means they are similar to Docker but behave somewhat like virtual machines. When you start a LXD (lex-dee) container, you are starting a new system on your computer, with its own IP address and all. You can get LXD as a snap package. …

Continue reading

Permanent link to this article: https://blog.simos.info/how-to-easily-run-graphics-accelerated-gui-apps-in-lxd-containers-on-your-ubuntu-desktop/

How to use LXD container hostnames on the host in Ubuntu 18.04

If you have two LXD containers, mycontainer1 and mycontainer2, then you can reference each other with those handy *.lxd hostnames like this, $ lxc exec mycontainer1 — sudo –user ubuntu –login ubuntu@mycontainer1:~$ ping mycontainer2.lxd PING mycontainer2.lxd(mycontainer2.lxd (fd42:cba6:557e:1a5a:24e:3eff:fce2:8d3)) 56 data bytes 64 bytes from mycontainer2.lxd (fd42:cba6:557e:1a5a:24e:3eff:fce2:8d3): icmp_seq=1 ttl=64 time=0.125 ms ^C — mycontainer2.lxd ping statistics — …

Continue reading

Permanent link to this article: https://blog.simos.info/how-to-use-lxd-container-hostnames-on-the-host-in-ubuntu-18-04/

How to try LXD 3.0 beta

LXD is a container hypervisor/lighter-visor for Linux distributions. You kinda get the effect of a Linux virtual machine but using Linux containers instead. You can consider them as lightweight virtual machines. Currently, LXD is at version 2 (2.21) and soonish version 3.0 will be released. In this post we see how to get to try …

Continue reading

Permanent link to this article: https://blog.simos.info/how-to-try-lxd-3-0-beta/

Checking the Ubuntu Linux kernel updates on Spectre and Meltdown (22 February 2018)

In the post Checking the Ubuntu Linux kernel updates on Spectre and Meltdown we saw the initial support of countermeasures in the Ubuntu Linux kernel for Spectre and Meltdown. Here is the output of the spectre-meltdown-checker script when I run it on 26th January 2018 (Ubuntu Linux kernel HWE 4.13.0.32), Today there was a kernel update …

Continue reading

Permanent link to this article: https://blog.simos.info/checking-the-ubuntu-linux-kernel-updates-on-spectre-and-meltdown-22-february-2018/

How to repartition a Hetzner VPS disk for ZFS on its own partition for LXD

In that post, we saw how to set up LXD on a Hetzner VPS (Hetzner Cloud). The particular VPS comes with a fixed size partition, and we had to put the LXD containers in a loopback device file, not on its own partition. The reason is that once the VPS is booted up, you cannot …

Continue reading

Permanent link to this article: https://blog.simos.info/how-to-repartition-a-hetzner-vps-disk-for-zfs-on-its-own-partition-for-lxd/

How to use the X2Go remote desktop with LXD containers

I would like to thank Brian Mullan for sharing his notes on getting X2Go to work on LXD containers. Prior to this, I never used X2Go before. You would typically use LXD (pronounced LexDee) containers to run server software. However, you can also run GUI apps. If the LXD containers are located on your desktop …

Continue reading

Permanent link to this article: https://blog.simos.info/how-to-use-the-x2go-remote-desktop-with-lxd-containers/

%d bloggers like this: