Proxy monitoring doesn't show any data

[mwwlodek]

Hello,

I have weird issue - right now 2 out of 4 proxy cannot show any data for assigned hosts (for now only snmp).

Offline proxy is problem with server, but rest of proxy server are "Online".

Some info:
1. First and forth proxy works without any issue for now, but it is also the newest one.
2. Default port is changed to 11050 and 11051.
3. I can reach them from both side on 11051, 11050 is not reachable on all of them.
4. All hosts attached to proxy 2 and 3 is not able to proceed with any data (even ping).
5. I can reach hosts via snmpwalk/get on their system directly.
6. I get data thorugh integrated zabbix inventory -> test -> get value and test for proxy 2 and 3.
7. I believe for some time at the beggining it works.



Have anybody reach the same issue?
What more can I check?

[PSklyar]

Hey, hey
I would recommend beginning investigation from checking proxy logs
Then check which process bound to which port:
sudo netstat -tlnp | grep zabbix

After that, found needed and check if proxy listening port:
sudo netstat -tlnp | grep portnumber
sudo ss -tlnp | grep portnumber
sudo lsof -i : portnumber