Re: [gentoo-user] Re: X-forwarding fails with Invalid MIT-MAGIC-COOKIE-1 key
X-forwarding used to work for me but I haven't used it in a while and now I get: Warning: untrusted X11 forwarding setup failed: xauth key data not generated Warning: No xauth data; using fake authentication data for X11 forwarding. Xlib: connection to localhost:10.0 refused by server Xlib: Invalid MIT-MAGIC-COOKIE-1 key Cannot open display: ... Unfortunately I still get the same error. I'll try to put together an xauth command, but does anyone know what happened here? Usually you just enable X11Forwarding and you can use it right? Hi, I seem to have missed a couple of posts in this thread. Have you got xauth installed? When I set up a new machine recently there was a missing dependency - I _think_ it was xauth. I installed a base system + knode + mozilla. I never installed X11 explicitly, as I never log into this machine locally, only use a couple of X11 apps remotely (because those aren't available on my Mac). I'm not sure if X11 itself was installed or only some X11~ish libraries, but there was definitely a dependency missing as a result of the way I installed. Unfortunately I didn't file a bug. Secondly, when you ssh in, you need to use `ssh -Y hostname` in order to enable ssh forwarding. Hope these observations are not unhelpful, Stroller. Thanks everyone, but I still get the same error. On the client I added to /etc/ssh/ssh_config: Host * ForwardAgent yes ForwardX11 yes and I deleted ~/.Xauthority and ~/.ICEauthority. On the server I added to /etc/ssh/sshd_config: X11Forwarding yes and restarted sshd. I get: $ ssh -Y 192.168.10.1 The authenticity of host '192.168.10.1 (192.168.10.1)' can't be established. RSA key fingerprint is. Are you sure you want to continue connecting (yes/no)? yes Failed to add the host to the list of known hosts (/home/grant/.ssh/known_hosts). Password: Warning: No xauth data; using fake authentication data for X11 forwarding. Last login: Fri May 1 07:10:12 PDT 2009 from 192.168.10.2 on ssh $ gimp Xlib: connection to localhost:10.0 refused by server Xlib: Invalid MIT-MAGIC-COOKIE-1 key Cannot open display: Should I reboot? - Grant
Re: [gentoo-user] Re: X-forwarding fails with Invalid MIT-MAGIC-COOKIE-1 key
$ ssh -Y 192.168.10.1 The authenticity of host '192.168.10.1 (192.168.10.1)' can't be established. RSA key fingerprint is. Are you sure you want to continue connecting (yes/no)? yes Failed to add the host to the list of known hosts (/home/grant/.ssh/known_hosts). I think the problem is here: too strict permissions in ~/.ssh preventing ssh to update known_hosts list, needed to continue connection. it should be 700 for the .ssh directory and 600 for the file known_hosts. What is the output of: ls -l .ssh -d ? And ls -l .ssh ? Is 192.168.10.1 in your known_hosts? With the right RSA key? Ciao Francesco Thanks again everyone, it's working after a reboot. X has been strange since the xorg-1.5 upgrade. I noticed that ssh -X fails with the same error message I've been getting, but ssh -Y succeeds. man ssh says: -Y Enables trusted X11 forwarding. Trusted X11 forwardings are not subjected to the X11 SECURITY extension controls. Security extension controls sounds like a good thing. Does anyone know why -X isn't working? - Grant
Re: [gentoo-user] Re: X-forwarding fails with Invalid MIT-MAGIC-COOKIE-1 key
$ ssh -Y 192.168.10.1 The authenticity of host '192.168.10.1 (192.168.10.1)' can't be established. RSA key fingerprint is. Are you sure you want to continue connecting (yes/no)? yes Failed to add the host to the list of known hosts (/home/grant/.ssh/known_hosts). I think the problem is here: too strict permissions in ~/.ssh preventing ssh to update known_hosts list, needed to continue connection. it should be 700 for the .ssh directory and 600 for the file known_hosts. What is the output of: ls -l .ssh -d ? And ls -l .ssh ? Is 192.168.10.1 in your known_hosts? With the right RSA key? Ciao Francesco Thanks again everyone, it's working after a reboot. X has been strange since the xorg-1.5 upgrade. I noticed that ssh -X fails with the same error message I've been getting, but ssh -Y succeeds. man ssh says: -Y Enables trusted X11 forwarding. Trusted X11 forwardings are not subjected to the X11 SECURITY extension controls. Security extension controls sounds like a good thing. Does anyone know why -X isn't working? - Grant I should also add that the following doesn't seem to be necessary on the client: /etc/ssh/ssh_config: Host * ForwardAgent yes ForwardX11 yes - Grant
Re: [gentoo-user] Re: X-forwarding fails with Invalid MIT-MAGIC-COOKIE-1 key
X-forwarding used to work for me but I haven't used it in a while and now I get: Warning: untrusted X11 forwarding setup failed: xauth key data not generated Warning: No xauth data; using fake authentication data for X11 forwarding. Xlib: connection to localhost:10.0 refused by server Xlib: Invalid MIT-MAGIC-COOKIE-1 key Cannot open display: I have: # cat /etc/ssh/sshd_config | grep X11Forwarding X11Forwarding yes Does anyone know how to fix this? First, ssh to the box without X forwarding and: rm ~/.Xauthority rm ~/.ICEauthority logout Then try to ssh again with X forwarding enabled. It should work. Unfortunately I still get the same error. I'll try to put together an xauth command, but does anyone know what happened here? Usually you just enable X11Forwarding and you can use it right? - Grant
Re: [gentoo-user] Re: X-forwarding fails with Invalid MIT-MAGIC-COOKIE-1 key
2009/4/30 Grant emailgr...@gmail.com X-forwarding used to work for me but I haven't used it in a while and now I get: Warning: untrusted X11 forwarding setup failed: xauth key data not generated Warning: No xauth data; using fake authentication data for X11 forwarding. Xlib: connection to localhost:10.0 refused by server Xlib: Invalid MIT-MAGIC-COOKIE-1 key Cannot open display: I have: # cat /etc/ssh/sshd_config | grep X11Forwarding X11Forwarding yes Does anyone know how to fix this? First, ssh to the box without X forwarding and: rm ~/.Xauthority rm ~/.ICEauthority logout Then try to ssh again with X forwarding enabled. It should work. Unfortunately I still get the same error. I'll try to put together an xauth command, but does anyone know what happened here? Usually you just enable X11Forwarding and you can use it right? - Grant You also need ForwardX11 yes in your client configuration. Try ssh -v to get more output.
Re: [gentoo-user] Re: X-forwarding fails with Invalid MIT-MAGIC-COOKIE-1 key
In your /etc/ssh/ssh_config (not sshd_config), make sure you have: ForwardAgent yes ForwardX11 yes I used to get the same error, and after I enabled these options, it worked like it should. I also do ssh -Y u...@machine - but that may be redundant, I'm not sure. Denis
Re: [gentoo-user] Re: X-forwarding fails with Invalid MIT-MAGIC-COOKIE-1 key
On 30 Apr 2009, at 16:59, Grant wrote: X-forwarding used to work for me but I haven't used it in a while and now I get: Warning: untrusted X11 forwarding setup failed: xauth key data not generated Warning: No xauth data; using fake authentication data for X11 forwarding. Xlib: connection to localhost:10.0 refused by server Xlib: Invalid MIT-MAGIC-COOKIE-1 key Cannot open display: ... Unfortunately I still get the same error. I'll try to put together an xauth command, but does anyone know what happened here? Usually you just enable X11Forwarding and you can use it right? Hi, I seem to have missed a couple of posts in this thread. Have you got xauth installed? When I set up a new machine recently there was a missing dependency - I _think_ it was xauth. I installed a base system + knode + mozilla. I never installed X11 explicitly, as I never log into this machine locally, only use a couple of X11 apps remotely (because those aren't available on my Mac). I'm not sure if X11 itself was installed or only some X11~ish libraries, but there was definitely a dependency missing as a result of the way I installed. Unfortunately I didn't file a bug. Secondly, when you ssh in, you need to use `ssh -Y hostname` in order to enable ssh forwarding. Hope these observations are not unhelpful, Stroller.
