View source for MDs On The Outside

These are my findings about something that is NOT supported at all.

= Goal =
Due to various reasons have an MD somewhere outside the internal network

= Start =
Setup your MD as usual on the internal network, and make sure everything is working as expected. After everything is working, go into the web admin for the MD and
* Remove the MAC address
* Modify the IP address to point to the new external IP address

= Problems =
== DNS, DHCP, PXE and TFTPBOOT ==
A infrastructure to supply the correct information to the PXE booting MD needs to exist outside the internal network. Best bet is to copy the pxelinux.cfg file manually to a server on the outside.

== Network ==
Make sure you disable the LinuxMCE firewall, and make sure you have a route to 192.168.80.0 from your external network pointing to the dcerouter. Make sure, the host name dcerouter gets resolved.

== MySQL ==
The user root only has access to the MySQL databases from the internal network. This need to be changed:
 mysql -e "GRANT ALL ON *.* TO 'root'@'<ip-address-of-external-md>';"

== NFS ==
As is with MySQL, the NFS server only allows access from the inside. To remedy, the file /etc/exports has to be modified. Either after each reload, by replacing 192.168.80.0/255.255.255.0 with 0.0.0.0/0.0.0.0 or by modifying the file /usr/pluto/templates/exports.tmpl

Make sure to do restart the NFS service after modifying the exports file.
 service nfs-kernel-server restart

= Conclusion =
Things work, but there are many pitfalls, and there is a reason WHY you should let LinuxMCE be the center of your network.