docs: add example config for Apache Guacamole app (#195)

example_configs/apacheguacamole.md

@@ -0,0 +1,38 @@
+# Configuration for Apache Guacamole
+!! IMPORTANT - LDAP only works with LLDAP if using a [database authentication](https://guacamole.apache.org/doc/gug/ldap-auth.html#associating-ldap-with-a-database).  The Apache Guacamole does support using LDAP to store user config but that is not in scope here.
+This was achieved by using the docker [jasonbean/guacamole](https://registry.hub.docker.com/r/jasonbean/guacamole/).
+
+##  To setup LDAP
+
+Open and edit your Apache Guacamole properties files
+
+Located at `guacamole/guacamole.properties`
+
+Uncomment and insert the below into your properties file
+
+```
+### http://guacamole.apache.org/doc/gug/ldap-auth.html
+### LDAP Properties
+ldap-hostname: localhost
+ldap-port: 3890
+ldap-user-base-dn: ou=people,dc=example,dc=com
+ldap-username-attribute: uid
+ldap-search-bind-dn: uid=admin,ou=people,dc=example,dc=com
+ldap-search-bind-password: replacewithyoursecret
+ldap-user-search-filter: (memberof=cn=lldap_apacheguac,ou=groups,dc=example,dc=com)
+```
+
+* Exclude `ldap-user-search-filter` if you do not want to limit users based on a group(s)
+* Replace `dc=example,dc=com` with your LLDAP configured domain for all occurances
+* Apache Guacamole does not lock you out when enabling LDAP.  Your `static` IDs still are able to log in.
+
+##  To enable LDAP
+Restart your Apache Guacamole app for changes to take effect
+
+## To enable users
+Before logging in with an LLDAP user, you have to manually create it using your static ID in Apache Guacamole. This applies to each user that you want to log in with using LDAP authentication.  Otherwise the user will be logged in without any permissions/connections/etc.
+
+Using your static ID, create a username that matches your target LDAP username. If applicable, tick the permissions and/or connections that you want this user to see.
+
+Log in with LDAP user.
+