Problem with zabbix-agent 3.2.11 and debian 9.4 in ServerActive

[AurelB]

Hello,

As the name of the headline indicates, i've a problem with ServerActive only with server in debian 9.4.
With debian 9.3 no problem, there is well the auto registration with Zabbix server.

For the firewall is correct, here is command :

> iptables -L
Chain INPUT (policy DROP)
ACCEPT tcp -- [B]ip_zabbix-server [/B]anywhere tcp dpt:zabbix-agent

Chain OUTPUT (policy DROP)
ACCEPT tcp -- anywhere [B]ip_zabbix-server [/B] tcp dpt:zabbix-trapper

For you information, the Zabbix-agent version on debian 9.4 and 9.3 is the same (3.2.11).

The logs below :

- Zabbix-agent : no active checks on server [[B]ip_zabbix-server [/B]:10051]: host [[B]debian_9.4[/B]] not found
- Zabbix-server : cannot send list of active checks to "[B]ip_debian_9.4[/B]": host [[B]debian_9.4[/B]] not found

Config Zabbix-agent :

- Server=[B]ip_zabbix-server [/B]
- ServerActive=[B]ip_zabbix-server [/B]
- HostnameItem=system.hostname
- HostMetadata=linux

Second information, when i create manually the new host in the Zabbix-server, no problem, it sends me all the informations.

Can you help me please ?
Thanks in advance.

[Atsushi]

Please try registering a host named "debian_9.4".

[kloczek]

Please try registering a host named "debian_9.4".

No this is not this.
He has registered this host but all metrics on this host have type "zabbix agent" (passive checks) instead "zabbix agent (active)" (active checks).

[Atsushi]

Please read the messages in the log files carefully.

[AurelB]

Hello,

Thank you for your participation

i've tried to add a new host from the Zabbix-server interface and this one was working

However, i would like it to work in ActiveServer.

[Atsushi]

If you want to do active checks, you need to select 'Zabbix agent(active)' as type in item setting.

[AurelB]

My problem does not deal the data recovery but the autoregistration of my VM in the hosts only with debian version 9.4 whereas with debian version 9.3, it works.

[Atsushi]

If auto registration does not work, please check the setting of auto registration.

[AurelB]

Atsushi, the settings of auto-registration are good, it works with the hosts in debian 9.3, 8, 7, ...
For you, below the capture of the auto-registration configuration :

[Atsushi]

Please compare the contents set in zabbix_agentd.conf with the contents of auto registration setting.

You used HostnameItem to get the host name and the result should be "debian_9.4".
It does not match the condition of Hostname like linux set in Conditions of auto registration setting.

Do not you want to check Host metadata?

[AurelB]

Oh my god !! I'm so stupid.
I changed the setting two weeks ago with a bad condition...
However, with a VM test in debian 9.3, the auto-registration worked. Mystery !!

To conclude, the problem is not debian but me.

Atsushi, thank you for your help