I'm sure I've reported this a while back but I can't find it in the archives.
I'm having a problems connecting from my laptop to a number of my servers. It's not a solid fault, but it's fairly constant at the moment.
I have a number of servers FC7 to FC10 that I connect to, as well as a number of FC10 workstations. These all work fine. However from my laptop I get the following when I connect:
Warning: No xauth data; using fake authentication data for X11 forwarding. tcsetattr: Interrupted system call Last login: Wed Aug 26 11:13:21 2009 from gary.ringways.co.uk [root@stan ~]#
and then once I'm in the BASH command line editing doesn't work.
Can anyone suggest where I can start looking into the problem. I'm not too bad with ssh but have no knowledge of xauth, konsole, BASH etc.
Gary
Gary Stainburn wrote:
I'm sure I've reported this a while back but I can't find it in the archives.
I'm having a problems connecting from my laptop to a number of my servers. It's not a solid fault, but it's fairly constant at the moment.
I have a number of servers FC7 to FC10 that I connect to, as well as a number of FC10 workstations. These all work fine. However from my laptop I get the following when I connect:
Warning: No xauth data; using fake authentication data for X11 forwarding. tcsetattr: Interrupted system call Last login: Wed Aug 26 11:13:21 2009 from gary.ringways.co.uk [root@stan ~]#
and then once I'm in the BASH command line editing doesn't work.
Can anyone suggest where I can start looking into the problem. I'm not too bad with ssh but have no knowledge of xauth, konsole, BASH etc.
Gary
Dumb question - have you compared /etc/ssh/ssh.conf on your laptop to the same file on machines that do not give you trouble? It sounds like an xauth problem on the laptop...
# If this option is set to yes then remote X11 clients will have full access # to the original X11 display. As virtually no X11 client supports the untrusted # mode correctly we set this to yes. ForwardX11Trusted yes #
Mikkel
On Wednesday 26 August 2009 18:10:15 Mikkel L. Ellertson wrote:
Dumb question - have you compared /etc/ssh/ssh.conf on your laptop to the same file on machines that do not give you trouble? It sounds like an xauth problem on the laptop...
# If this option is set to yes then remote X11 clients will have full access # to the original X11 display. As virtually no X11 client supports the untrusted # mode correctly we set this to yes. ForwardX11Trusted yes #
Mikkel
Hi Mikkel,
I've checked the ssh config and it does match every other machine I have on the network. Also, ForwardX11Trusted is set to yes.
Today I am on another site on my network, and have a different DHCP allocated IP address/subnet. It may be a coincidence, but this morning, every server I have connected to today has worked every time. Yesterday it failed nearly every time.
The servers I was connecting to are on 10.1.0.0/16, 10.2.0.0/16 and 10.5.0.0/16. My IP address yesterday was 10.1.1.2. My IP address today is 10.2.1.29
Gary
Gary Stainburn wrote:
Hi Mikkel,
I've checked the ssh config and it does match every other machine I have on the network. Also, ForwardX11Trusted is set to yes.
Today I am on another site on my network, and have a different DHCP allocated IP address/subnet. It may be a coincidence, but this morning, every server I have connected to today has worked every time. Yesterday it failed nearly every time.
The servers I was connecting to are on 10.1.0.0/16, 10.2.0.0/16 and 10.5.0.0/16. My IP address yesterday was 10.1.1.2. My IP address today is 10.2.1.29
Gary
That is strange. I will have to think about this. It does not make sense to me!
Mikkel
Mikkel L. Ellertson wrote:
Gary Stainburn wrote:
I'm sure I've reported this a while back but I can't find it in the archives.
I'm having a problems connecting from my laptop to a number of my servers. It's not a solid fault, but it's fairly constant at the moment.
I have a number of servers FC7 to FC10 that I connect to, as well as a number of FC10 workstations. These all work fine. However from my laptop I get the following when I connect:
Warning: No xauth data; using fake authentication data for X11 forwarding. tcsetattr: Interrupted system call Last login: Wed Aug 26 11:13:21 2009 from gary.ringways.co.uk [root@stan ~]#
and then once I'm in the BASH command line editing doesn't work.
Can anyone suggest where I can start looking into the problem. I'm not too bad with ssh but have no knowledge of xauth, konsole, BASH etc.
Gary
Dumb question - have you compared /etc/ssh/ssh.conf on your laptop to the same file on machines that do not give you trouble? It sounds like an xauth problem on the laptop...
# If this option is set to yes then remote X11 clients will have full access # to the original X11 display. As virtually no X11 client supports the untrusted # mode correctly we set this to yes. ForwardX11Trusted yes #
Two other things to consider, unlikely but easy to check: 1 - had the sshd.conf file been changed 2 - does X work properly at the console and did you look at selinux alerts?
On Friday 28 August 2009 00:46:00 Bill Davidsen wrote:
1 - had the sshd.conf file been changed 2 - does X work properly at the console and did you look at selinux alerts?
1 - checked and looks fine 2 - X works fine locally, and as I said yesterday works fine from a different site/subnet.
Selinux is set to permissive, but also didn't report anything
Interestingly, I am back on the 1st site again today and the problem has recurred and seems to be a solid fault
On Friday 28 August 2009 09:26:09 Gary Stainburn wrote:
Interestingly, I am back on the 1st site again today and the problem has recurred and seems to be a solid fault
I have done a clean install of FC11 (was FC10 before) and the same problem occurs on one site (the one I'm on now).
I linked in remotely yesterday and all was fine. I use it from other sites no problem. I've used it from this site and the problem occurs intermittantly, but today it's solid.
An example of a session from today. X seems to behave, but BASH auto-complete and screen handling doesn't.
Anyone got any ideas?
Warning: No xauth data; using fake authentication data for X11 forwarding. tcsetattr: Interrupted system call Last login: Mon Oct 26 09:36:21 2009 from dcomp5.ringways.co.uk **************************************** * * * THIS IS NOT THE MAIL SERVER * * YOU NEED OLLIE FOR THAT * * * **************************************** [root@stan ~]#
Anyone got any ideas?
Warning: No xauth data; using fake authentication data for X11 forwarding. tcsetattr: Interrupted system call Last login: Mon Oct 26 09:36:21 2009 from dcomp5.ringways.co.uk
*
THIS IS NOT THE MAIL SERVER *
YOU NEED OLLIE FOR THAT *
*
[root@stan ~]#
Just rebooted the laptop and the problem has gone away again. Another symptom, but doesn't help me diagnose the fault.