2
votes
0answers
50 views

Vagrant-lxc container not starting

Firstly I'd like to say that I'm new to LXC and I may have some problems getting the right idea of how the things should work. The thing is I'm trying to start a previously download vagrant-lxc box ...
2
votes
0answers
63 views

How to move process from one namespace to other?

This question is similar to my question about how to list namespaces. So in addtition, I'd like to know some information about moving processes from one namespace to other? E.g. I have processes of ...
3
votes
0answers
132 views

LXC with both GUI apps and snapshots on unmodified Fedora kernel

I am looking for a tool or library to run LXC that supports: running X applications conveniently snapshotting root filesystems (using a Fedora system with an unmodified kernel), so that I don't have ...
6
votes
1answer
224 views

How to list namespaces in Linux?

Is there any method in Linux to list all namespaces on the running host? I need to check namespaces for particular processes (e.g. processes running in LXC-container and all other processes on the ...
1
vote
0answers
68 views

Containers running on ARM

I've been doing some research and decided to implement OpenVZ since it allows each container to be isolated from other containers, unlike LXC. However, OpenVZ is still not supported for ARM ...
2
votes
1answer
325 views

Bridged network with different subnets

I want to virtualize my webserver with lxc/virsh for this reason, I want to pass a IP to the lxc container. But my IPs are from different subnets, what I tried (but not successfully): Virsh network: ...
4
votes
2answers
330 views

Executing a command inside a running LXC

I want to execute a command inside an existing lxc without going through the regular Linux init. lxc-execute command is for that I guess but I get the following error when I run this command on my ...
1
vote
1answer
435 views

How to assign an additional IP/hostname to a chrooted environment?

While I can simply have e.g. sshd in a chroot environment ("chrootenv") listen to a different port than its parent ("parentenv"), it would be more convenient to have that environment have an ...
12
votes
1answer
366 views

Command to run a child process “offline” (no external network) on Linux

I have a program I would like to test in offline mode without taking down my actual network. This program would still need to connect to local sockets, including unix domain sockets and loopback. It ...
2
votes
1answer
303 views

Which one is lighter security- and CPU-wise: LXC versus UML

I'm trying to decide between "jailing" certain applications and I know the trade-offs of KVM versus LXC and how I can use them both. Lately I came across UML (User-Mode Linux) again and was wondering ...
2
votes
0answers
43 views

LXC: Have rootfs mounted without nosuid

I have the container's rootfs in a volume mounted with the nosuid option. When I start the container, its / mounted is then also mounted nosuid, which breaks programs such as sudo. How can I avoid ...
3
votes
2answers
72 views

Reference documentation for cgroups (control groups) settings

I'm looking for some reference documentation to explain what each of the settings are, for each control group. For example, there's cpuset.cpus, I think setting this to 0 means use all CPUs, setting ...
1
vote
0answers
53 views

lxc-unfreeze does not resume the guest if the host is rebooted

Does a guest that has been frozen with lxc-freeze survive a reboot of the host? I.e. after rebooting the host, can the guest be unfrozen with lxc-unfreeze?
5
votes
1answer
345 views

SquashFS image as rootfs in LXC

Is it possible to use a SquashFS filesystem as an LXC rootfs? I can mount an ext3 image as a rootfs just by setting lxc.rootfs to the filename, but if it's any other type of image, lxc-start just says ...
6
votes
2answers
2k views

Fast X for LXC guest on localhost?

How can I run X apps inside an LXC container efficiently? ssh -Y guest is too slow - there is no graphics acceleration with ssh -Y - everything has to travel over the virtual network with the ...