About Me

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  • About me

    I am a Xen Project Evangelist who works for Citrix Systems. Introduced to Linux in 1995, I have been an Open Source columnist, speaker, author, and radio personality.
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Russell Pavlicek

Russell Pavlicek

  • Karma
  • Member since
    Tuesday, 12 March 2013 12:57
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    20 hours 2 minutes ago
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About Me

Basic Information

  • About me

    I am a Xen Project Evangelist who works for Citrix Systems. Introduced to Linux in 1995, I have been an Open Source columnist, speaker, author, and radio personality.
  • Country

  • Karl-Heinz, Work has been underway to properly separate the XAPI layer from XenServer/XCP. Prior to the Xen Project joining the Linux Foundation last year, XAPI was usually packaged with XenServer/XCP. Last I heard, a new release of XAPI separate from XenServer was underway. I don't know the status of the effort currently, but I b...
    yesterday
  • Also, what's the version of xen-tools? Russ...
    3 days ago
  • What version of Xen Project software are you running? With which Linux/BSD distribution and version for Domain-0? Was the hypervisor installed from the RPMs/DEBs which came with Linux/BSD, or did you install the Xen Project software from a different source (e.g., sourcecode kit, etc.)? Russ...
    3 days ago
  • You have an opportunity to take part in the best day of Xen Project education for 2014 at the upcoming Xen Project User Summit in New York City on September 15. The cost is a mere $79 US. In return, you'll attend some great talks including: Advanced Security Features Features of the Upcoming 4.5 Release The Xen4CentOS Project High Availabi...
    3 days ago
  • Ange, Since neither of those projects are part of Xen Project, I'd suggest pursuing them individually. It appears that Open Xen Manager has a page here: https://github.com/OpenXenManager/openxenmanager And XenCenter is part of XenServer, so I'd suggest one of the support mechanisms described on XenServer.org. You ...
    4 days ago
  • Ange, Glad you solved the problem! That's good news. Russ...
    less than a minute ago
  • Ranvir, For Xen Project, the hypervisor itself does not know what version of what distribution is used in a guest, so there isn't a Xen Project-specific command to do this. That said, there are multiple ways to attack the problem. One common practice used by some people is to include the base info in the Domain name, e.g., "LAMP-ubun...
    less than a minute ago
  • Ange, I would certainly expect so. If not, please let me know. The kits were originally XCP on Debian/Ubuntu, and XCP == XenServer without a Citrix logo. These kits were devised by the XenServer team and they focus on using XenServer software (XenCenter, for example, is XenServer software, not Xen Project). As such, I'd hope they'd...
    1 week ago
  • I had a quick chat with a XenServer person who suggests the following: "The only thought I had was perhaps an iptables rule needs to be set to actually allow the socket to be open. HTTPS/443 would be the most likely, and I’m thinking that based on the open xen manager socket message." These kits were originally developed by the XenSe...
    2 weeks ago
  • Karl-Heinz, The standard doc page for xcp-xapi can be found here: http://wiki.xenproject.org/wiki/XAPI_toolstack_on_a_Debian-based_distribution Even though XAPI is part of Xen Project, the kits in Debian/Ubuntu came from the XenServer engineering team at Citrix. As such, most of the Xen Project folks only have limited knowledg...
    2 weeks ago
  • Sagar, As far as I know, Xen Project does nothing to facilitate RDP, but does nothing to block it either. So, you install whatever RDP software you need on your guest VM's OS and then access it using an RDP client. You can find information any number of places, including: http://www.linux.org/threads/rdp-into-your-linux-...
    2 weeks ago
  • Russell Pavlicek added a reply in discussion SPICE and Xen...
    Sagar, I believe that work on SPICE support began around the 4.1/4.2 timeframe. It also required some changes to QEMU apparently. As such, any SPICE code in 4.1 (if there is any) is probably quite weak and reliant in part with having a good QEMU available. The Xen Project 4.4 release had a lot of improvements to the SPICE support. ...
    2 weeks ago
  • If xl works and xe doesn't, it sounds like something more basic is misconfigured. What is the TOOLSTACK value in /etc/default/xen? Should be TOOLSTACK="xapi", I believe. Russ...
    2 weeks ago
  • Russell Pavlicek added a reply in discussion SPICE and Xen...
    Sagar, Have a look at the Wiki page: http://wiki.xenproject.org/wiki/SPICE_support_in_Xen Russ...
    2 weeks ago
  • Okay, I've found a bit of background: Originally, the PAM parameters were oriented toward using XenCenter in XenServer or XCP. As XAPI became more independent, the parameters were changed to be more restrictive in the interest of safety. It appears the intended solution is to create a xapi group, enable the commented out line in the ...
    2 weeks ago
  • I am trying to get someone with XenServer experience to look into this. I know very little about what XenCenter requires to talk to an xcp-xapi node. I am also doing research on my own in case I can find something. Russ...
    2 weeks ago
  • >Does the user I will login with XenCenter have to be member of the group "root"? I'm not a PAM expert, but it is possible. I've been Googling and found a patch from 2012 which modified the xapi PAM file similarly to what you see. It includes the comment: +#Uncomment to allow group 'xapi' to authenticate. You must create this ...
    2 weeks ago
  • If the file has the extension .dpkg-new, I don't believe it is being used. Try renaming or copying the file to /etc/pam.d/xapi and reboot. See if that helps. Russ...
    2 weeks ago
  • Have a look at the reply in this question: http://xenproject.org/help/questions-and-answers/xcp-xapi-on-ubuntu-14-04.html It appears there is an access issue which needs to be adjusted after installing xcp-xapi. See if it helps for you. Russ...
    2 weeks ago
  • I'm not a XenServer guy, but I did find this post which appears related: http://ubuntuforums.org/showthread.php?t=2158441 This user has a similar problem and writes: ----- I've managed to de-garble the line in the /etc/pam.d/xapi file. If you change the file to look like this, you should be able to log in with XenCenter: ...
    2 weeks ago