Hi!
Is it possible to load balance NX (TCP) traffic between two servers ?
With free edition ?
With enterprise edition ?
NX is SSH-like protocole used by NoMachine, remote desktop solution.
Thanks!
HiCat
Basic TCP load balancing is possible.
Usually problems are application carrying IP addresses (like FTP) that require secondary data sessions, or application switching to UDP.
As long as you are forwarding a simple TCP session, it woll work just fine.
Hi!
I fear NoMachine NX protocol is not compatible with PROXY protocol of HAProxy so IP source address will be unknown for the NoMachine server (it will only see IP add. of HAProxy).
It’s a problem for traceability needs.
Is that true ?
HiCat.
Regarding the proxy protocol, as this is stacked, the NX protocol is not relevant here.
Not even HTTP is “compatible” with the PROXY protocol, because it is the wrong question to ask.
What matters is whether the implementation on the server supports the PROXY protocol.
OK
So, if the implementation on the NoMachine servers does not support the PROXY protocol, IP source address (client) will be unknown for the NoMachine servers (they will only see IP add. of HAProxy) ?
What could be the solution ?
A tunnel with logs capability between client and HAProxy ?
What else ?
Thenks.
Correct, you will see the source IP of haproxy connecting.
You can put the haproxy instance as a default-gateway and use transparent mode (with a few iptables trickes). However this is complicated and requires you to modify your network setup.
There is no other solution, other than having the PROXY protocol implemented on the server side.