Clustering does not function correctly

[OnLogic]

I enabled clustering on two nodes. Using the master node as a DNS server works as expected. Using the slave node times out and I cannot access it's web UI.

The slave node shows this on startup:


The master node shows this:


I did some testing from the slave node's terminal and it appears that port 19003 hangs the connection for some reason:


I checked the ports on the master node and they were the following:


Any ideas/suggestions as to why the slave node hangs and doesn't function correctly?

[support200]

Did you try Dig or Nslookup against your salve node?

nslookup block.nxfilter.org. slave-node-ip

And see what happens in the log file of your slave node when you make the query above.

[OnLogic]

Did you try Dig or Nslookup against your salve node?

nslookup block.nxfilter.org. slave-node-ip

And see what happens in the log file of your slave node when you make the query above.

No change; the log show nothing new. I know it's not a firewall issue as the slave node was working perfectly and responding to DNS queries before clustering was enabled.

[support200]

I guess it should respond your qeury even if it has a problem with clustering. Then what's the last line of your slave node log? Just 'MasterCheck started' and hangs? In that case, you may need to add an entry for your master node on your slave node /etc/hosts file. https://tutorial.nxfilter.org/h-clus...xfilter.php#tr

[OnLogic]

I added the entry in the host file but to no avail. Someone else on my team changed a some settings on the VMs it was running on and resolved the issue. They also discovered that only allowing TCP traffic over port 19004 will not allow clustering to function; 19004 needs to be opened for both TCP and UDP traffic.

[support200]

UDP/19004 is for Asynchronous Login Session. https://forum.nxfilter.org/announcem...er-by-v4-6-6-1

Maybe we didn't update our tutorial. We will update it.

[OnLogic]

Thank you for updating it!