OSEC

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[discuss] Observations on 9.2

From: Gavin Porter (g.portereris.qinetiq.com)
Date: Thu Oct 23 2003 - 07:27:51 CDT


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Hello,

I have just installed Mandrake 9.2 in Paranoid mode and have a few
observations.

Generally, looks great and is even more smooth than 9.1

X is defaulting to accepting TCP connections from anywhere. The default,
particularly for the higher security levels, should be do disable TCP as
a transport protocol to X leaving the more secure local domain sockets.

My current approach for this is by editing /usr/X11R6/bin/startx to set
the defaultserverargs variable to '-nolisten tcp'

Do people think that this should perhaps be the default behaviour for
all users?

If not, I can build this into msec if there is some interest.

Another problem is that X does not work when the secure kernel is
booted. The X server loads but is then killed by the kernel. A syslog
entry suggests this is by PAX, although I don't know what PAX is.

A final observation - if the display manager has been loaded but can't
load X then it tries to troubleshoot. It allows the user to enter the
root password to load XFDrake. Unfortunately, due to the security level
root logins are disabled, so the attenpt fails.

Regards,
Gavin
- --
Gavin Porter
QinetiQ Trusted Information Management,
Woodward B007, St. Andrews Road, Malvern, Worcestershire, WR14 3PS
tel: 01684 894 879

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