#272 - [X2Go-User] Session resume fails with AFS home directories

X2Go Bug report logs - #272
[X2Go-User] Session resume fails with AFS home directories

Reported by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

Date: Fri, 26 Jul 2013 14:48:01 UTC

Severity: normal

Found in version 4.0.1.3

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From: Sebastian Flothow <sebastian.flothow@gip.com>
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Subject: Re: [X2Go-User] Session resume fails with AFS home directories
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I did some further testing, and the resume failures are indeed due to missing AFS tokens. When suspending a session, the SSH connection is closed, sshd will call pam_close_session(), which means that pam_krb5 and pam_afs_session will delete the user's ticket/token (resp.). The session therefore loses access to the home directory and appears to freeze up, preventing it from being resumed. Both pam_krb5 and pam_afs_session accept retain_after_close as a parameter, which disables the delete-on-close behavior. With this parameter set, it becomes possible to resume sessions, unless the AFS token has expired. This solves at least the case where the user reconnects quickly (eg. after a short network outage), but it still means sessions will become unresumable when left unused for a few days. I guess the only way to avoid this is to not store session data in the home directory. Can X2go be configured such that it uses eg. /tmp or /var/lib for this purpose?

X2Go Developers <owner@bugs.x2go.org>. Last modified: Thu Nov 21 15:14:59 2024; Machine Name: ymir.das-netzwerkteam.de

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X2Go Bug report logs - #272 [X2Go-User] Session resume fails with AFS home directories

X2Go Bug report logs - #272
[X2Go-User] Session resume fails with AFS home directories