Bug 8299
Summary: | kppp and userhelper breaks with X11 forwarding | ||
---|---|---|---|
Product: | [Retired] Red Hat Linux | Reporter: | Albert Strasheim <fullung> |
Component: | usermode | Assignee: | Nalin Dahyabhai <nalin> |
Status: | CLOSED ERRATA | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 6.1 | ||
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i386 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2000-02-02 13:23:33 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: |
Description
Albert Strasheim
2000-01-08 22:41:08 UTC
Which version of openssh are you running? Are there any error messages being printed to the console by kppp? I'm running openssh-1.2.1pre25-1 (with openssl-0.9.4-3), both built from SRPMS found on http://www.firedrake.org/openssh/files/ There weren't any error messages, kppp just died silently. Ditto with rp3-config. And this is with a connect to myself (ie. ssh 192.168.1.1). I hope I'm not barking up the wrong tree here, but most other apps I tried, including GIMP and netscape worked fine. This is the first I've heard of this, but it sounds like it might be an obscure usermode bug of some kind, so I can't be completely sure. Are there any error messages in /var/log/messages or /var/log/secure? Is there any indication of usermode crashing somehow (core dump, error messages, etc)? When you ssh in as root, does running /usr/sbin/kppp directly work? When ssh'ing from a normal user under X to the root user, and executing kppp (as root), I get the following error: -- error start -- X11 connection rejected because of wrong authentication. kppp: Fatal IO error: client killed -- error end -- I assume running as root bypasses userhelper? Ditto for ssh'ing from root to root. Also, for some strange reason, when I log out, the ssh session refuses to die on the client side. Nothing of interest in any of the logfiles. Programs gated by userhelper have a symlink in /usr/bin/<appname> that points to userhelper, and userhelper's configuration file under /etc/security/console.apps lists the "real" binary's location, which is almost always in /usr/sbin. Running this program from /usr/sbin bypasses userhelper entirely if you're root, and should not work (or at least, not completely) as a non-root user. Ah, this was a *very* specific usermode/pam_xauth interaction problem, which should be solved by today's errata. |