First time posting, sorry if this is a lame question but has anyone been able to get Xwindows or something like freenx working in a guest Xen domain? I am able to run and connect to freenx fine on the host machine as without problems, and I can install fine into the Xen guest but as soon as I try and connect I get the following error (in the NoMachine client): Here is the NoMachine client output: NX> 203 NXSSH running with pid: 6036 NX> 285 Enabling check on switch command NX> 285 Enabling skip of SSH config files NX> 200 Connected to address: 192.168.0.21 on port: 22 NX> 202 Authenticating user: nx NX> 208 Using auth method: publickey HELLO NXSERVER - Version 1.4.0-44 OS (GPL) NX> 105 hello NXCLIENT - Version 1.5.0 NX> 134 Accepted protocol: 1.5.0 NX> 105 SET SHELL_MODE SHELL NX> 105 SET AUTH_MODE PASSWORD NX> 105 login NX> 101 User: root NX> 102 Password: NX> 103 Welcome to: demo.localdomain user: root NX> 105 listsession --user="root" --status="suspended,running" --geometry="1280x1024x16+render" --type="unix-kde" mktemp: cannot create temp file /tmp/nxserver_tmp.nhHqc3592: Permission denied Killed by signal 15. Thoughts? BTW both the host and guest are RHEL AS 4 Update 2 (the host is running in a VMware) Sincerely, Jamison Moore This message is intended only for the person(s) to which it is addressed and may contain Sphera Corporation privileged, confidential and/or proprietary information. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Any disclosure, copying, distribution, or the taking of any action concerning the contents of this message and any attachment(s) by anyone other than the named recipient(s) is strictly prohibited. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Fajar A. Nugraha
2005-Dec-16 02:19 UTC
Re: [Xen-users] Xwindows or Freenx in a guest domain
Jamie Moore wrote:> First time posting, sorry if this is a lame question but has anyone > been able to get Xwindows or something like freenx working in a guest > Xen domain? I am able to run and connect to freenx fine on the host > machine as without problems, and I can install fine into the Xen guest > but as soon as I try and connect I get the following error (in the > NoMachine client): > > > > >[snip]> mktemp: cannot create temp file /tmp/nxserver_tmp.nhHqc3592: > Permission denied >I suggest you start with that. /tmp should be world-writable. I''m guessing you didn''t preserve permissions and owner while creating dom-U''s filesystem. "cp -a" or "tar" or "rsync -a" should do the trick. -- Fajar _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Mark Williamson
2005-Dec-16 03:05 UTC
Re: [Xen-users] Xwindows or Freenx in a guest domain
> On another note, any idea what the guest domain doesn''t see any of the > PCI devices? DO I need to provide a param in the guest config file for > them or something, I couldn''t find anything on it in the help but I did > see an obscure email saying something to the effect of > > pci = ... >What version of Xen? If it''s Xen 3.0 you can''t (yet) give domUs control of PCI devices, so not seeing any PCI devices is perfectly normal. Eventually we''ll re-implement the abillity to give different guests control of different PCI devices, and the "pci =" config option will return once more :-) Cheers, Mark> > Regards, > > Jamie > > -----Original Message----- > From: xen-users-bounces@lists.xensource.com > [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Fajar A. > Nugraha > Sent: Thursday, December 15, 2005 6:19 PM > To: xen-users@lists.xensource.com > Subject: Re: [Xen-users] Xwindows or Freenx in a guest domain > > Jamie Moore wrote: > > First time posting, sorry if this is a lame question but has anyone > > been able to get Xwindows or something like freenx working in a guest > > Xen domain? I am able to run and connect to freenx fine on the host > > machine as without problems, and I can install fine into the Xen guest > > > > but as soon as I try and connect I get the following error (in the > > NoMachine client): > > [snip] > > > mktemp: cannot create temp file /tmp/nxserver_tmp.nhHqc3592: > > Permission denied > > I suggest you start with that. /tmp should be world-writable. I''m > guessing you didn''t preserve permissions and owner while creating > dom-U''s filesystem. "cp -a" or "tar" or "rsync -a" should do the trick._______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
You have got to be kidding me :( I could have sworn I checked that at
least 10 times. That was the problem sadly. I used cp -ax
/{dev,lib,...the rest}/ to copy all the dirs over for my guest domain,
did I not do it correctly? Do you think I will have other permission
problems then...ugg, the short yellow bus is here to pick me up :(
On another note, any idea what the guest domain doesn''t see any of the
PCI devices? DO I need to provide a param in the guest config file for
them or something, I couldn''t find anything on it in the help but I did
see an obscure email saying something to the effect of
pci = ...
Regards,
Jamie
-----Original Message-----
From: xen-users-bounces@lists.xensource.com
[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Fajar A.
Nugraha
Sent: Thursday, December 15, 2005 6:19 PM
To: xen-users@lists.xensource.com
Subject: Re: [Xen-users] Xwindows or Freenx in a guest domain
Jamie Moore wrote:
> First time posting, sorry if this is a lame question but has anyone
> been able to get Xwindows or something like freenx working in a guest
> Xen domain? I am able to run and connect to freenx fine on the host
> machine as without problems, and I can install fine into the Xen guest
> but as soon as I try and connect I get the following error (in the
> NoMachine client):
>
>
>
>
>
[snip]
> mktemp: cannot create temp file /tmp/nxserver_tmp.nhHqc3592:
> Permission denied
>
I suggest you start with that. /tmp should be world-writable. I''m
guessing you didn''t preserve permissions and owner while creating
dom-U''s filesystem. "cp -a" or "tar" or "rsync
-a" should do the trick.
--
Fajar
_______________________________________________
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http://lists.xensource.com/xen-users
_______________________________________________
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Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users
Mark Williamson
2005-Dec-16 03:14 UTC
Re: [Xen-users] Xwindows or Freenx in a guest domain
> Yup running Xen 3.0, unfortunately I never used 2.0, oh well not a big > deal. I guess what I was really trying to do is get sound working in the > guest, could I expect to do that without needed the pci devises > explicitly available with that option?I''d suggest (for now) you forward sound using NX (if you can make that work) or remote artsd / esd / gstreamer / whatever. I''ve taken a look at doing a proper Xen virtual sound device - don''t think it''d be that hard and would work transparently for all applications. Cheers, Mark> Regards, > > Jamie Moore > > -----Original Message----- > From: Mark Williamson [mailto:mark.williamson@cl.cam.ac.uk] > Sent: Thursday, December 15, 2005 7:05 PM > To: xen-users@lists.xensource.com > Cc: Jamie Moore; Fajar A. Nugraha > Subject: Re: [Xen-users] Xwindows or Freenx in a guest domain > > > On another note, any idea what the guest domain doesn''t see any of the > > PCI devices? DO I need to provide a param in the guest config file for > > them or something, I couldn''t find anything on it in the help but I > > did > > > see an obscure email saying something to the effect of > > > > pci = ... > > What version of Xen? If it''s Xen 3.0 you can''t (yet) give domUs control > of > PCI devices, so not seeing any PCI devices is perfectly normal. > Eventually > we''ll re-implement the abillity to give different guests control of > different > PCI devices, and the "pci =" config option will return once more :-) > > Cheers, > Mark > > > Regards, > > > > Jamie > > > > -----Original Message----- > > From: xen-users-bounces@lists.xensource.com > > [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Fajar A. > > Nugraha > > Sent: Thursday, December 15, 2005 6:19 PM > > To: xen-users@lists.xensource.com > > Subject: Re: [Xen-users] Xwindows or Freenx in a guest domain > > > > Jamie Moore wrote: > > > First time posting, sorry if this is a lame question but has anyone > > > been able to get Xwindows or something like freenx working in a > > guest > > > > Xen domain? I am able to run and connect to freenx fine on the host > > > machine as without problems, and I can install fine into the Xen > > guest > > > > but as soon as I try and connect I get the following error (in the > > > NoMachine client): > > > > [snip] > > > > > mktemp: cannot create temp file /tmp/nxserver_tmp.nhHqc3592: > > > Permission denied > > > > I suggest you start with that. /tmp should be world-writable. I''m > > guessing you didn''t preserve permissions and owner while creating > > dom-U''s filesystem. "cp -a" or "tar" or "rsync -a" should do the > > trick._______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Yup running Xen 3.0, unfortunately I never used 2.0, oh well not a big deal. I guess what I was really trying to do is get sound working in the guest, could I expect to do that without needed the pci devises explicitly available with that option? Regards, Jamie Moore -----Original Message----- From: Mark Williamson [mailto:mark.williamson@cl.cam.ac.uk] Sent: Thursday, December 15, 2005 7:05 PM To: xen-users@lists.xensource.com Cc: Jamie Moore; Fajar A. Nugraha Subject: Re: [Xen-users] Xwindows or Freenx in a guest domain> On another note, any idea what the guest domain doesn''t see any of the > PCI devices? DO I need to provide a param in the guest config file for > them or something, I couldn''t find anything on it in the help but Idid> see an obscure email saying something to the effect of > > pci = ... >What version of Xen? If it''s Xen 3.0 you can''t (yet) give domUs control of PCI devices, so not seeing any PCI devices is perfectly normal. Eventually we''ll re-implement the abillity to give different guests control of different PCI devices, and the "pci =" config option will return once more :-) Cheers, Mark> > Regards, > > Jamie > > -----Original Message----- > From: xen-users-bounces@lists.xensource.com > [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Fajar A. > Nugraha > Sent: Thursday, December 15, 2005 6:19 PM > To: xen-users@lists.xensource.com > Subject: Re: [Xen-users] Xwindows or Freenx in a guest domain > > Jamie Moore wrote: > > First time posting, sorry if this is a lame question but has anyone > > been able to get Xwindows or something like freenx working in aguest> > Xen domain? I am able to run and connect to freenx fine on the host > > machine as without problems, and I can install fine into the Xenguest> > > > but as soon as I try and connect I get the following error (in the > > NoMachine client): > > [snip] > > > mktemp: cannot create temp file /tmp/nxserver_tmp.nhHqc3592: > > Permission denied > > I suggest you start with that. /tmp should be world-writable. I''m > guessing you didn''t preserve permissions and owner while creating > dom-U''s filesystem. "cp -a" or "tar" or "rsync -a" should do thetrick. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Steven Anderson
2005-Dec-16 14:49 UTC
Re: [Xen-users] Xwindows or Freenx in a guest domain
Greetings! I tried to get FreeNX working and was getting sigterm 15 error. Which noone was able to help with. I decided to troubleshoot the problem by just connecting thru SSH -Y connection from dom0 to domU. The image for the guest was created in qemu and the system partition was migrated to a raw partition for use with Xen. I have spent two weeks troubleshooting it and no luck. I have reinstalled openssh and its dependents on both domU and dom0 and still no luck at all. I am at my wits end with this problem. I have spent about 12 hours with people from the #linuxhelp #fedora from freenode and irc.oftc.. and noone has been able to help.. They think its a Xen issue but I am not sure. Next I was going to try and get it working from dom0 to the qemu image to see if it made a difference. Here is the details trying to setup xnest session to remotely launch xterm (later on I would like to get gnome working remotely) on the server side I have IP address 192.168.15.101 on the client side I have IP address 192.168.15.100 I am not using DNS I launch the SSHD with the command /usr/sbin/sshd -d -p 1236 It says debug1: sshd version OpenSSH_4.2p1 debug1: read PEM private key done: type RSA debug1: private host key: #0 type 1 RSA debug1: read PEM private key done: type DSA debug1: private host key: #1 type 2 DSA debug1: rexec_argv[0]=''/usr/sbin/sshd'' debug1: rexec_argv[1]=''-d'' debug1: rexec_argv[2]=''-p'' debug1: rexec_argv[3]=''1236'' debug1: Bind to port 1236 on 192.168.15.101. Server listening on 192.168.15.101 port 1236 On the client I issue xhost + It says access control disabled, clients can connect from any host I type Xterm an Xterm session starts In the Xterm session I type Xnest :1 -ac & It informs me Could not init font path element /usr/X11R6/lib/X11/fonts/TTF/, removing from list! Could not init font path element /usr/X11R6/lib/X11/fonts/CID/, removing from list! I hit <enter> A prompt appears I type ssh -Xvvv -p 1236 hikenboot@192.168.15.101 It tells me It says a bunch of stuff then It says debug3:authmethod_is_enabled password debug1: Next authentication method: password hieknboot@192.168.15.101''s password: I type my password It says a bunch of stuff then it says debug1: Recieved SIGCHLD. and then a prompt appears I type export DISPLAY=192.168.15.100:1 then I type xterm the last lines on the server say debug1: session_new: session 0 debug1: session_open: channel 0 debug1: session_open: session 0: link with channel 0 debug1: server_input_channel_open: confirm session debug1: server_input_channel_req: channel 0 request x11-req reply 0 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req x11-req debug1: channel 1: new [X11 inet listener] debug1: channel 2: new [X11 inet listener] debug1: server_input_channel_req: channel 0 request pty-req reply 0 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req pty-req debug1: Allocating pty. debug1: session_new: init debug1: session_new: session 0 debug1: session_pty_req: session 0 alloc /dev/pts/1 debug1: server_input_channel_req: channel 0 request shell reply 0 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req shell debug1: Setting controlling tty using TIOCSCTTY. on the clients xterm /xnest session it just hangs! thats it.. thanks in advance for your help and happy hollidays! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
I was able to get freenx working just fine once ssh was able to create a /tmp file properly (I previously did not have it writable). Not sure if this will help but I don''t believe you will be able to connect to freenx with ssh in debug (sshd -d) as sshd wont fork in debug mode. Did you try connecting without ssh in debug? If you want to get more info from ssh while connecting, what I did was in set the log level to the highest in ssh-config and tailed my secure log. Regards, Jamie Moore ________________________________ From: xen-users-bounces@lists.xensource.com [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Steven Anderson Sent: Friday, December 16, 2005 6:49 AM To: xen-users@lists.xensource.com Subject: Re: [Xen-users] Xwindows or Freenx in a guest domain Greetings! I tried to get FreeNX working and was getting sigterm 15 error. Which noone was able to help with. I decided to troubleshoot the problem by just connecting thru SSH -Y connection from dom0 to domU. The image for the guest was created in qemu and the system partition was migrated to a raw partition for use with Xen. I have spent two weeks troubleshooting it and no luck. I have reinstalled openssh and its dependents on both domU and dom0 and still no luck at all. I am at my wits end with this problem. I have spent about 12 hours with people from the #linuxhelp #fedora from freenode and irc.oftc.. and noone has been able to help.. They think its a Xen issue but I am not sure. Next I was going to try and get it working from dom0 to the qemu image to see if it made a difference. Here is the details trying to setup xnest session to remotely launch xterm (later on I would like to get gnome working remotely) on the server side I have IP! address 192.168.15.101 on the client side I have IP address 192.168.15.100 I am not using DNS I launch the SSHD with the command /usr/sbin/sshd -d -p 1236 It says debug1: sshd version OpenSSH_4.2p1 debug1: read PEM private key done: type RSA debug1: private host key: #0 type 1 RSA debug1: read PEM private key done: type DSA debug1: private host key: #1 type 2 DSA debug1: rexec_argv[0]=''/usr/sbin/sshd'' debug1: rexec_argv[1]=''-d'' debug1: rexec_argv[2]=''-p'' debug1: rexec_argv[3]=''1236'' debug1: Bind to port 1236 on 192.168.15.101. Server listening on 192.168.15.101 port 1236 On the client I issue xhost + It says access control disabled, clients can connect from any host I type Xterm an Xterm session starts In the Xterm session I type Xnest :1 -ac & It informs me Could not init font path element /usr/X11R6/lib/X11/fonts/TT! F/, removing from list! Could not init font path element /usr/X11R6/lib/X11/fonts/CID/, removing from list! I hit <enter> A prompt appears I type ssh -Xvvv -p 1236 hikenboot@192.168.15.101 It tells me It says a bunch of stuff then It says debug3:authmethod_is_enabled password debug1: Next authentication method: password hieknboot@192.168.15.101''s password: I type my password It says a bunch of stuff then it says debug1: Recieved SIGCHLD. and then a prompt appears I type export DISPLAY=192.168.15.100:1 then I type xterm the last lines on the server say debug1: session_new: session 0 debug1: session_open: channel 0 debug1: session_open: session 0: link with channel 0 debug1: server_input_channel_open: confirm session debug1: server_input_channel_req: channel 0 request x11-req reply 0 debug1: session_by_channel: session ! 0 channel 0 debug1: session_input_channel_req: session 0 req x11-req debug1: channel 1: new [X11 inet listener] debug1: channel 2: new [X11 inet listener] debug1: server_input_channel_req: channel 0 request pty-req reply 0 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req pty-req debug1: Allocating pty. debug1: session_new: init debug1: session_new: session 0 debug1: session_pty_req: session 0 alloc /dev/pts/1 debug1: server_input_channel_req: channel 0 request shell reply 0 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req shell debug1: Setting controlling tty using TIOCSCTTY. on the clients xterm /xnest session it just hangs! thats it.. thanks in advance for your help and happy hollidays! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the ! best spam protection around http://mail.yahoo.com _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
No problem. My guest /etc/sshd_config has all the default values, I changed nothing but the following log level (BTW my guest and host are both RHEL AS 4 Update 2): # Logging #obsoletes QuietMode and FascistLogging #SyslogFacility AUTH SyslogFacility AUTHPRIV LogLevel DEBUG3 Also getting freenx working was very easy. I simply installed the packages listed on this page (none for RHEL 4.1 so I used the fedora core 3) http://fedoranews.org/contributors/rick_stout/freenx/ Once that was done I connected using the free NoMachine client. I never touched xhost. http://www.nomachine.com/download.php Regards, Jamie Moore ________________________________ From: Steven Anderson [mailto:hikenboot@yahoo.com] Sent: Friday, December 16, 2005 9:04 AM To: Jamie Moore Subject: RE: [Xen-users] Xwindows or Freenx in a guest domain Jamie: Thanks for your reply. Is it possible for you to atatach your sss-config? I tried doing with /without freenx and with /without xnest with no luck....but the different log method might reveil somthing. Please attach config. Have a happy holiday! regards, steve Jamie Moore <jmoore@sphera.com> wrote: I was able to get freenx working just fine once ssh was able to create a /tmp file properly (I previously did not have it writable). Not sure if this will help but I don''t believe you will be able to connect to freenx with ssh in debug (sshd -d) as sshd wont fork in debug mode. Did you try connecting without ssh in debug? If you want to get more info from ssh while connecting, what I did was in set the log level to the highest in ssh-config and tailed my secure log. Regards, Jamie Moore ________________________________ From: xen-users-bounces@lists.xensource.com [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Steven Anderson Sent: Friday, December 16, 2005 6:49 AM To: xen-users@lists.xensource.com Subject: Re: [Xen-users] Xwindows or Freenx in a guest domain Greetings! I tried to get FreeNX working and was getting sigterm 15 error. Which noone was able to help with. I decided to troubleshoot the problem by just connecting thru SSH -Y connection from dom0 to domU. The image for the guest was created in qemu and the system partition was migrated to a raw partition for use with Xen. I have spent two weeks troubleshooting it and no luck. I have reinstalled openssh and its dependents on both domU and dom0 and still no luck at all. I am at my wits end with this problem. I have spent about 12 hours with people from the #linuxhelp #fedora from freenode and irc.oftc.. and noone has been able to help.. They think its a Xen issue but I am not sure. Next I was going to try and get it working from dom0 to the qemu image to see if it made a difference. Here is the details trying to setup xnest session to remotely launch xterm (later on I would like to get gnome working remotely) on the server side I have IP! address 192.168.15.101 on the client side I have IP address 192.168.15.100 I am not using DNS I launch the SSHD with the command /usr/sbin/sshd -d -p 1236 It says debug1: sshd version OpenSSH_4.2p1 debug1: read PEM private key don! e: type RSA debug1: private host key: #0 type 1 RSA debug1: read PEM private key done: type DSA debug1: private host key: #1 type 2 DSA debug1: rexec_argv[0]=''/usr/sbin/sshd'' debug1: rexec_argv[1]=''-d'' debug1: rexec_argv[2]=''-p'' debug1: rexec_argv[3]=''1236'' debug1: Bind to port 1236 on 192.168.15.101. Server listening on 192.168.15.101 port 1236 On the client I issue xhost + It says access control disabled, clients can connect from any host I type Xterm an Xterm session starts In the Xterm session I type Xnest :1 -ac & It informs me Could not init font path element /usr/X11R6/lib/X11/fonts/TT! F/, removing from list! Could not init font path element /usr/X11R6/lib/X11/fonts/CID/, removing from list! I hit <enter> A prompt appears I type ssh -Xvvv -p 1236 hikenboot@192.168.15.101 It tells me It says a bunch ! of stuff then It says debug3:authmethod_is_enabled password debug1: Next authentication method: password hieknboot@192.168.15.101''s password: I type my password It says a bunch of stuff then it says debug1: Recieved SIGCHLD. and then a prompt appears I type export DISPLAY=192.168.15.100:1 then I type xterm the last lines on the server say debug1: session_new: session 0 debug1: session_open: channel 0 debug1: session_open: session 0: link with channel 0 debug1: server_input_channel_open: confirm session debug1: server_input_channel_req: channel 0 request x11-req reply 0 debug1: session_by_channel: session ! 0 channel 0 debug1: session_input_channel_req: session 0 req x11-req debug1: channel 1: new [X11 inet listener] debug1: channel 2: new [X11 inet listener] debug1: server_input_channel_req: channel 0 request pty-req reply 0 debug1: session_by_channel! : session 0 channel 0 debug1: session_input_channel_req: session 0 req pty-req debug1: Allocating pty. debug1: session_new: init debug1: session_new: session 0 debug1: session_pty_req: session 0 alloc /dev/pts/1 debug1: server_input_channel_req: channel 0 request shell reply 0 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req shell debug1: Setting controlling tty using TIOCSCTTY. on the clients xterm /xnest session it just hangs! thats it.. thanks in advance for your help and happy hollidays! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the ! best spam protection around http://mail.yahoo.com __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Oh one thing I forgot to mention, make sure to follow the instructions on that page about setting up the keys between the nomachine client and the frrenx domain. Without these no matter whether the user and pass are correct it wont connect, it will drop you out right after authentication. I took the easy route and simply copied the contents of the key file form the server and pasted them into the nomachine client (none of that download / import stuff). Good luck. Regards, Jamie Moore ________________________________ From: xen-users-bounces@lists.xensource.com [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Jamie Moore Sent: Friday, December 16, 2005 9:36 AM To: Steven Anderson Cc: xen-users@lists.xensource.com Subject: RE: [Xen-users] Xwindows or Freenx in a guest domain No problem. My guest /etc/sshd_config has all the default values, I changed nothing but the following log level (BTW my guest and host are both RHEL AS 4 Update 2): # Logging #obsoletes QuietMode and FascistLogging #SyslogFacility AUTH SyslogFacility AUTHPRIV LogLevel DEBUG3 Also getting freenx working was very easy. I simply installed the packages listed on this page (none for RHEL 4.1 so I used the fedora core 3) http://fedoranews.org/contributors/rick_stout/freenx/ Once that was done I connected using the free NoMachine client. I never touched xhost. http://www.nomachine.com/download.php Regards, Jamie Moore ________________________________ From: Steven Anderson [mailto:hikenboot@yahoo.com] Sent: Friday, December 16, 2005 9:04 AM To: Jamie Moore Subject: RE: [Xen-users] Xwindows or Freenx in a guest domain Jamie: Thanks for your reply. Is it possible for you to atatach your sss-config? I tried doing with /without freenx and with /without xnest with no luck....but the different log method might reveil somthing. Please attach config. Have a happy holiday! regards, steve Jamie Moore <jmoore@sphera.com> wrote: I was able to get freenx working just fine once ssh was able to create a /tmp file properly (I previously did not have it writable). Not sure if this will help but I don''t believe you will be able to connect to freenx with ssh in debug (sshd -d) as sshd wont fork in debug mode. Did you try connecting without ssh in debug? If you want to get more info from ssh while connecting, what I did was in set the log level to the highest in ssh-config and tailed my secure log. Regards, Jamie Moore ________________________________ From: xen-users-bounces@lists.xensource.com [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Steven Anderson Sent: Friday, December 16, 2005 6:49 AM To: xen-users@lists.xensource.com Subject: Re: [Xen-users] Xwindows or Freenx in a guest domain Greetings! I tried to get FreeNX working and was getting sigterm 15 error. Which noone was able to help with. I decided to troubleshoot the problem by just connecting thru SSH -Y connection from dom0 to domU. The image for the guest was created in qemu and the system partition was migrated to a raw partition for use with Xen. I have spent two weeks troubleshooting it and no luck. I have reinstalled openssh and its dependents on both domU and dom0 and still no luck at all. I am at my wits end with this problem. I have spent about 12 hours with people from the #linuxhelp #fedora from freenode and irc.oftc.. and noone has been able to help.. They think its a Xen issue but I am not sure. Next I was going to try and get it working from dom0 to the qemu image to see if it made a difference. Here is the details trying to setup xnest session to remotely launch xterm (later on I would like to get gnome working remotely) on the server side I have IP! address 192.168.15.101 on the client side I have IP address 192.168.15.100 I am not using DNS I launch the SSHD with the command /usr/sbin/sshd -d -p 1236 It says debug1: sshd version OpenSSH_4.2p1 debug1: read PEM private key don! e: type RSA debug1: private host key: #0 type 1 RSA debug1: read PEM private key done: type DSA debug1: private host key: #1 type 2 DSA debug1: rexec_argv[0]=''/usr/sbin/sshd'' debug1: rexec_argv[1]=''-d'' debug1: rexec_argv[2]=''-p'' debug1: rexec_argv[3]=''1236'' debug1: Bind to port 1236 on 192.168.15.101. Server listening on 192.168.15.101 port 1236 On the client I issue xhost + It says access control disabled, clients can connect from any host I type Xterm an Xterm session starts In the Xterm session I type Xnest :1 -ac & It informs me Could not init font path element /usr/X11R6/lib/X11/fonts/TT! F/, removing from list! Could not init font path element /usr/X11R6/lib/X11/fonts/CID/, removing from list! I hit <enter> A prompt appears I type ssh -Xvvv -p 1236 hikenboot@192.168.15.101 It tells me It says a bunch ! of stuff then It says debug3:authmethod_is_enabled password debug1: Next authentication method: password hieknboot@192.168.15.101''s password: I type my password It says a bunch of stuff then it says debug1: Recieved SIGCHLD. and then a prompt appears I type export DISPLAY=192.168.15.100:1 then I type xterm the last lines on the server say debug1: session_new: session 0 debug1: session_open: channel 0 debug1: session_open: session 0: link with channel 0 debug1: server_input_channel_open: confirm session debug1: server_input_channel_req: channel 0 request x11-req reply 0 debug1: session_by_channel: session ! 0 channel 0 debug1: session_input_channel_req: session 0 req x11-req debug1: channel 1: new [X11 inet listener] debug1: channel 2: new [X11 inet listener] debug1: server_input_channel_req: channel 0 request pty-req reply 0 debug1: session_by_channel! : session 0 channel 0 debug1: session_input_channel_req: session 0 req pty-req debug1: Allocating pty. debug1: session_new: init debug1: session_new: session 0 debug1: session_pty_req: session 0 alloc /dev/pts/1 debug1: server_input_channel_req: channel 0 request shell reply 0 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req shell debug1: Setting controlling tty using TIOCSCTTY. on the clients xterm /xnest session it just hangs! thats it.. thanks in advance for your help and happy hollidays! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the ! best spam protection around http://mail.yahoo.com __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Steven Anderson
2005-Dec-17 00:45 UTC
[Xen-users] RE: Xwindows or Freenx in a guest domain
This is one to share with everyone! I have solve the problem with not being able to connect thru ssh and xnest and Freenx/NXClient. The problem was the tcp/ip packets were being chopped off by 8 bits because my MTU was set for 1500 instead of 1492. I found this article. I have simultaneously solved slow host problems, crashes, and slow web browsing! Thanks for everyones help! Happy Holiday Season to all! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Sanjay Upadhyay
2005-Dec-17 08:50 UTC
Re: [Xen-users] RE: Xwindows or Freenx in a guest domain
Which Article ? can you post a link ? thanx On 12/17/05, Steven Anderson <hikenboot@yahoo.com> wrote:> This is one to share with everyone! I have solve the problem with not being > able to connect thru ssh and xnest and Freenx/NXClient. The problem was the > tcp/ip packets were being chopped off by 8 bits because my MTU was set for > 1500 instead of 1492. > > I found this article. > > > I have simultaneously solved slow host problems, crashes, and slow web > browsing! > > Thanks for everyones help! Happy Holiday Season to all! > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Steven Anderson
2005-Dec-18 04:30 UTC
[Xen-users] RE: Xwindows or Freenx in a guest domain
Greetings! Happy Holidays to all once again! I am sending you this link which I failed to attach before! This is not xen specific except that xen kernels enable 1500 byte packets by default which is where the communications problem comes in between dom0 and domU and also with cable and dsl connections. It has very detramental effects on speed and with ssh connections dropping off. Goto the part where it says: 1. 1492 bytes 2 " This is generally a fix for xDSL setups rather than cable modems. The xDSL protocols require an extra 8 bytes minimum overhead -- sometimes you have to drop down all the way 1408 or there abouts." http://www.webservertalk.com/archive236-2004-5-193783.html What I havent figured out is how to make this a perminent change on all the interfaces. I have to set it every time the computer is booted. So if anyone knows please let me know! Regards, Steven Anderson __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On 12/16/05, Mark Williamson <mark.williamson@cl.cam.ac.uk> wrote:> > Yup running Xen 3.0, unfortunately I never used 2.0, oh well not a big > > deal. I guess what I was really trying to do is get sound working in the > > guest, could I expect to do that without needed the pci devises > > explicitly available with that option? > > I''d suggest (for now) you forward sound using NX (if you can make that work) > or remote artsd / esd / gstreamer / whatever.Gnome system sound works out of the box with NX and a ''sound device''-less domU. I haven''t tried KDE recently, but I imagine it should as well. -- Nicholas Lee http://stateless.geek.nz gpg 8072 4F86 EDCD 4FC1 18EF 5BDD 07B0 9597 6D58 D70C _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
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