shellinabox/README.Fedora

When running in SELinux mode on Fedora, some operations don't work out of the
box.

Until somebody contributes a complete SELinux policy for ShellInABox, here are
some tips on getting things working:

- avoid using the default "LOGIN" service. Calling /bin/login does not do
  the right thing.
  The "LOGIN" service is the default service when running "shellinaboxd" as
  "root". This means, you will most likely see all logins failing, whenever
  you start the daemon as "root".
  To fix this problem, consider explicitly specifying a service definition.
  One of these two should work:
    --service /:AUTH:HOME:SHELL
  or
    --service /:SSH
  The latter requires that you have a locally running "sshd" daemon.

- Alternatively, consider running "./configure --disable-login" before building
  the daemon. This will completely remove support for the "LOGIN" service, and
  shellinaboxd will instead use a default "SSH" service for both unprivileged
  and for "root" users.

- On Fedora, PAM authentication does not work for shellinabox until you
  explicitly configure it. This means, using "AUTH" in the service definition
  will not allow you to log in.
  You can fix this by defining a proper "/etc/pam.d/shellinabox" file. Take a
  look at "etc-pam.d-shellinabox-example" for a working example.
  Make sure you assign the correct SELinux labels to this file when copying
  it into "/etc/pam.d":
    cp -Z system_u:object_r:etc_t:s0 etc-pam.d-shellinabox-example /etc/pam.d/