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XCCDF
Guide to the Secure Configuration of SUSE Linux Enterprise 12
Services
SSH Server
Configure OpenSSH Server if Necessary
Prevent remote hosts from connecting to the proxy display
Prevent remote hosts from connecting to the proxy display
An XCCDF Rule
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Prevent remote hosts from connecting to the proxy display
Medium Severity
The SSH daemon should prevent remote hosts from connecting to the proxy display.
The default SSH configuration for
X11UseLocalhost
is
yes
, which prevents remote hosts from connecting to the proxy display.
To explicitly prevent remote connections to the proxy display, add or correct the following line in
/etc/ssh/sshd_config
:
X11UseLocalhost yes