SSH Between Boxes

[jlw52761]

I have two FreeNAS nodes, and I'm having a weird issue that I can figure out. I am trying to replicate between them and use SSH, but if I try to SSH from one to another, regardless of which one is the source, the SSH connection times out. Now, the weird thing is from either of them I can SSH to any of my other Ubuntu or pfSense (FreeBSD) systems on the network.

Is there anything, by default, in FreeNAS, that blocks SSH between two FreeNAS nodes?

 

[Spearfoot]

Did you start the SSH service on the FreeNAS boxes?

 

[jlw52761]

Yes, I can SSH into both boxes and from both boxes SSH into anything else on the network except each other.

 

[Spearfoot]

Yes, I can SSH into both boxes and from both boxes SSH into anything else on the network except each other.

Is the SSH service bound to the correct interface? Are the FreeNAS servers on the same subnet? Do you have gateways set up on the interface(s)? Can you ping the FreeNAS boxes from each other?

Give as many details as you can and perhaps someone with more knowledge will be able to help you out.

 

[jlw52761]

Is the SSH service bound to the correct interface

Each box only has one IP interface.

Are the FreeNAS servers on the same subnet

Yes

Do you have gateways set up on the interface(s)

Yes, same gateway, but since I'm on same L2 segment and same switch, doesn't matter in this case, plus can get to anything else on the network, even not on the same subnet.

Can you ping the FreeNAS boxes from each other

Nope. Box1 can ping anything EXCEPT Box2, and vice versa, even across L3 boundries.

This literally acts as if there's some type of block between FreeNAS systems on the same subnet. Looked for IPTABLE entries, none, so looking elsewhere.

From the network perspective, these are on the same L2 segment, on the same L3 switch. They both have Jumbo Frames enabled (I've been bit by this) and doing jumbo pings from ESXi hosts work without issue, so I know it's not that.

In the process of updating this, I did completely remove the switch config for Box2 and re-add it, and now things are working as expected. Not sure what that was about as the config was identical on both sides...

 

[Spearfoot]

...snip...
In the process of updating this, I did completely remove the switch config for Box2 and re-add it, and now things are working as expected. Not sure what that was about as the config was identical on both sides...

So it's working now? Fantastic!

 

[jlw52761]

Yeah, not a fan of the errors that mysteriously fix themselves though...

 

[Spearfoot]

Yeah, not a fan of the errors that mysteriously fix themselves though...

Neither am I! Gremlins...