Talk:Linux-VServer

Linux Low‑importance

	Linux portal This article is within the scope of WikiProject Linux, a collaborative effort to improve the coverage of Linux on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.LinuxWikipedia:WikiProject LinuxTemplate:WikiProject LinuxLinux articles
Low	This article has been rated as Low-importance on the project's importance scale.

Computing: Software / Security Mid‑importance

This article is within the scope of WikiProject Computing, a collaborative effort to improve the coverage of computers, computing, and information technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ComputingWikipedia:WikiProject ComputingTemplate:WikiProject ComputingComputing articles

Mid

This article has been rated as Mid-importance on the project's importance scale.

This article is supported by WikiProject Software (assessed as Low-importance).

This article is supported by WikiProject Computer Security (assessed as Mid-importance).

Things you can help WikiProject Computer Security with:

Article alerts will be generated shortly by AAlertBot. Please allow some days for processing. More information...

Review importance and quality of existing articles
Identify categories related to Computer Security
Tag related articles
Identify articles for creation (see also: Article requests)
Identify articles for improvement
Create the Project Navigation Box including lists of adopted articles, requested articles, reviewed articles, etc.
Find editors who have shown interest in this subject and ask them to take a look here.

cgroups-based

Is Linux-VServer based on cgroups like LXC, or not? User:ScotXW^t@lk 16:49, 22 March 2014 (UTC)[reply]

origin

Does this derive from the similar project years ago out of Quebec by the author of linuxconf? I've lost track of where that went...

Dan Shearer 19:48, Nov 20, 2004 (UTC)

Do you talk about Jacques Gélinas ? If so, yes, this project replaces the "contexts" project launched by Jacques.

Xen does process migration, doesn't it?

"No clustering or process migration capability is included, so the host kernel and host computer is still a single point of failure for all virtual servers (similar to Xen and UML)." I don't know about UML, but I know Xen does allow migration from one hardware node to another.

When it started?

Can anybody clarify of when exactly the "contexts" project was started, and when the first working version of Linux-VServer (or "contexts") was available? Just curious. --K001 22:47, 19 June 2006 (UTC)[reply]

Vserver Can Be Migrated!

Vservers as a whole can be migrated easily as long as the filesystems it depends on are able to be mounted on different hosts. Fail over is described here

Two items: 1) terminology, 2) the "Advantages" section is inaccurate

1) The phrase "whole system emulation" is used in several places. Is this intended to refer to virtualization in general, to actual emulation such as is provided by Bochs (http://bochs.sourceforge.net/)? Assuming it's virtualization that's intended, my second question (below) becomes relevant.

2) The "Advantages" section says that VServer's approach is "somewhat more memory-efficient and I/O-efficient than whole-system emulation, which cannot return "unused" memory or share a disk cache with the host and other virtual servers.". This is incorrect. For example, VMware supports memory ballooning as a mechanism to return unused memory to the host, and Oracle's Transcendent Memory project (http://oss.oracle.com/projects/tmem/) can provide even greater gains with suitably modified Linux guests.

-klode — Preceding unsigned comment added by Klode (talk • contribs) 16:13, 11 August 2011 (UTC)[reply]

Does it support file descriptor passing across isolation contexts?

Most unices support a mechanism to 'pass' a file descriptor through a socket. (http://archives.neohapsis.com/archives/postfix/2000-09/1476.html) For example, you might have a virus scanning daemon running as an unpriviledge user, and then to scan a file, a client can pass an open file descriptor over the socket to the virus scanning daemon. The scanning daemon can then read that file to search for viruses, even though it is running under a user that normally cannot access the file.

Does Linux-VServer allow file descriptor passing of this type between security contexts?

PS- I've asked the same question about Talk:LXC, Talk:Linux-VServer and Talk:OpenVZ 128.112.139.195 (talk) 20:42, 11 November 2012 (UTC)[reply]