Get value from agent failed: cannot connect to: [4] Interrupted system call

[IteaAgain]

Hello,

i have a strange problem.

My environment / network is a little bit complex, but that seems not to be the problem.

I have a zabbix server in a LAN, a zabbix-proxy in a DMZ and a icewarp-server (zabbix-agent host) in another DMZ, which should get monitored.

The connection between zabbix-proxy and zabbix-server is OK. The zabbix-proxy is monitoring also some other hosts in the same DMZ which is OK.
My problem is the icewarp-server in the other DMZ. Even if i have network connection between the zabbix-proxy and the icewarp-server, i did not get values from it in zabbix.

i can ping between zabbix-proxy and icewarp-server, i have also captured the packets on icewarp-server while trying a zabbix-get, which i can see transmitted.

There is no firewall on icewarp-server and selinux is in permissive mode.
Also zabbix-agent occupies port 10050 on icewarp server, it is just not working.

To get it together:
- network between zabbix-proxy and zabbix-agent is OK
- no local firewall on zabbix-agent host
- selinux in permissive mode
- ping between proxy and agent host is OK
- telnet to 10050 on zabbix-agent host is timing out
- zabbix shows error "Get value from agent failed: cannot connect to [[192.168.127.1]:10050]: [4] Interrupted system call"
- zabbix-agent log shows no error

[ellakong]

I meet the same issue too in Zabbix 4.2.1, who could help to answer this question?

[marianogedisman]

Same error here. No idea what could be causign it.

[gsalvin]

Same issue , how do you solved it ?

[IteaAgain]

Never solved at all, sorry.

[gsalvin]

Thanks for answering

[Shooter75]

Hi All.

What version of server/proxy and agent you use?
Is version the same?

I have same issue between SRV6.0.19LTS and agents v6.0.19 and 5.0.7
My new monitored instances excellent reporting its statuses, but old instances reports only to old server.
I think - compatibility matrix, and need to upgrade old agents to actual server version.