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[farmshare-discuss] Issue Logging In with Putty on Windows

Adam Seishas aseishas at
Sat Sep 29 12:57:19 PDT 2012

Try enabling GSSAPI credentials delegation for the session in PuTTY:

I think Victor is right: you’re not able to access your home directory after login because you don’t have an AFS token, which causes the file locking issue.

Adam Seishas
IT Service Desk
Stanford University
aseishas at

On Sep 29, 2012, at 12:48 PM, Chris Young <cvyoung at> wrote:

> Hi Victor,
> I was connecting to the general  I just tried corn13 and corn15 and got the same thing with the .Xauthority file.
> I have the Stanford kerberos program where I put my password in once when I first log in to my computer.
> Running "kinit -f" prints nothing to the screen after I put in my password.
> I'm running the XWin Server that come with Cygwin-X.  I know that's not the problem because I can log into another unix cluster I use for work (they're running Linux on Intel Xeon cores, not sure if that matters) and I can get x windows forwarded and appearing on my local desktop.
> Thanks for getting back so quickly,
> Chris
> On Sep 29, 2012, at 12:37 PM, Victor Chavez wrote:
>> On Sep 29, 2012, at 12:32 PM, Chris Young <cvyoung at> wrote:
>>> I was wondering if someone could shed some light on an error I'm getting logging in to corn on a PC using Putty.  (Everything works fine on my mac using X11 and the -X flag for ssh.)
>>> I have X11 forwarding enabled.  When I first log in it hangs for several seconds and I get a message:
>>> /usr/bin/xauth: timeout in locking authority file /afs/ir/users/c/v/cvyoung/.Xauthority
>>> I can do simple things like change directories, but all the file permissions in my home directory have "???????" listed until I do a "kinit; aklog" and type in my password.
>>> I also can't do anything requiring X11 windows.  Trying to run "xclock" gives:
>>> "PuTTY X11 proxy: wrong authorisation protocol attempted"
>>> "Error: Can't open display: localhost:14.0"
>>> I'm assuming it's something in my Putty settings for SSH.  Anybody run across something like this before?
>> Are you connecting to '' or a specific corn?  If you try logging into another corn, do you get different behavior?
>> Are you using password auth or kerberos?  When you login, can you run 'kinit -f' and paste the results?
>> And just checking: do you have an X Server on your Windows system (e.g. Xming)?
>> -- 
>> Victor Chavez, 650.736.8350
>> Sr. SysAdmin, Stanford IT Services
>> _______________________________________________
>> farmshare-discuss mailing list
>> farmshare-discuss at
> _______________________________________________
> farmshare-discuss mailing list
> farmshare-discuss at

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