= environment
== global system 
  * ''/etc/environment''
  * ''/etc/profile.d/<script>''

== apache
  * ''/etc/apache2/envvars'' + service restart

== remote conn
<code bash>
if [[ -z "$REMOTEHOST" &&  -z  "$SSH_CLIENT"  ]]; then
  echo "Cliente conectado en local";
else
  echo "Cliente conectado en remoto";
fi
</code>
/via:[[http://blog.rodrigorega.es/distinguir-una-sesion-local-de-una-remota-en-linux/]]