CentOS - Jun 2018 - shellinabox via proxy(apache)

hi guys,

cannot get it to work - shellinabox - not being programmer nor
selinux sorcerer.

shellinabox via apache, when I ausearch it all I get is:

#============= unconfined_service_t =============
#!!!! The file '/usr/bin/bash' is mislabeled on your system.
#!!!! Fix with $ restorecon -R -v /usr/bin/bash
allow unconfined_service_t unconfined_t:process transition;

I have shellinabox in Apache's:

<Location /cmd>
    AuthType Basic
    AuthName "some more"
    AuthBasicProvider PAM
    AuthPAMService rstudio
    Require valid-user
    #Require    all granted
    ProxyPasshttp://localhost:4200/
</Location>

using:

LoadModule authnz_pam_module modules/mod_authnz_pam.so

So all seems to work there between apache & shellinabox. Last bit
when you login to shell you get denied.

I also see:
$ ps -FZp 2909167 --cols 999
LABEL                           UID          PID    PPID  C    SZ   RSS PSR
STIME TTY          TIME CMD
system_u:system_r:unconfined_service_t:s0 shellin+ 2909167 1  0 10785 2740 7
Jun11 ?       00:00:00 /usr/sbin/shellinaboxd -u shellinabox -g shellinabox
--cert=/var/lib/shellinabox --port=4200 --localhost-only --disable-ssl


So it seems that shellinabox runs unconfined and the centos' policy forbids
transitions between unconfined domains.
Would that be right?
Many thanks, L.