Yet another "unable to connect"

[rpoelking]

I have almost 2 dozen servers configured with Zabbx agent 2 v 6 LTS but lately, new servers I am configuring will not connect. All of my servers are on AWS and I have the AWS security groups configured to allow traffic on 10050. I am using Ubuntu 22 and UFW is not enabled. When I run

nc -zv [targethostname.com] 10050

from the zabbix server, I get no route to host. but if I run the same thing for ports 80 or 443, it succeeds.
running

sudo lsof -i -P -n | grep LISTEN

on the target shows that the zabbix agent is listening on 10050.

[cyber]

no route to host... its netwrok issue there, not Zabbix, I think.

[rpoelking]

Network issue in what way? I can hit port 80. As far as I can tell, firewall rules are configured to allow 10050--so why is the server not responding on that port?

[rpoelking]

Ignore--I've managed to get 2 of the 3 on line. Since AWS manages the firewall, I didn't need UFW running. I've disabled it and then double checked the PSK settings and 2 came back on line after a reboot. Only 1 more to deal with.