Re: xinetd and selinux issues

freund@xxxxxxxxxxxxxxx wrote:
On Thu, 2006-06-29 at 17:13 -0400, Al Freundorfer wrote:
I set up xinetd to allow certian sites to connect to the server
thru /etc/xinetd.d/ssh.
It works perfectly when I set selinux to permissive, but doesn't work
when set
to enforcing even though I have the box checked in system-config-security
under selinux tab to allow ssh connection through inetd.

Can anyone help me with this?
Change back to permissive:

# setenforce 0

Make a note of the exact time.

Then try out a connection (which should work since you're in permissive
mode).

Then look in your /var/log/messages or /var/log/audit/audit.log (if you
have one) for messages containing "type=AVC" after the time you did the
"setenforce". Post back here any that you find.

Paul.

Thanks for your help. This is what I got.

(snip)

selinux set to enforcing:
remote terminal attemped login:
password:
Authentication successful.
Last login: Fri Jun 30 12:49:57 2006
/bin/bash: Permission denied
bash-2.03$

/var/log/messages:
Jun 30 12:57:28 local kernel: audit(1151686648.208:4): enforcing=1
old_enforcing=0 auid=4294967295
Jun 30 12:58:06 local kernel: audit(1151686686.350:5): avc: denied {
entrypoint } for pid=2627 comm="sshd" name="bash" dev=dm-0 ino=49053782
scontext=user_u:system_r:amanda_t:s0
tcontext=system_u:object_r:shell_exec_t:s0 tclass=file

This is a bit weird. The failures all refer to the "amanda_t" domain, which is what the "amanda" backup program should run in. Nothing to do with ssh. So that suggests to me that there's a labelling problem.

However, before resorting to relabelling your system, try this:

# setsebool -P run_ssh_inetd 1

You'll need this anyway for ssh via inetd/xinetd but I suspect it may not fix the problem.

Paul.

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