Check access restrictions in Zabbix agent configuration error

[fferraro87]

Hi,

i've added two hosts and i've same problem when i use zabbix_get command i've this error :

zabbix_get [21359]: Check access restrictions in Zabbix agent configuration

when i use tcpdump both from server and host everything works fine.

how can i fix this?

i've already check on this forum but i don't found anything.

Thanks

[Atsushi]

Have you set the values of Server and ServerActive in zabbix_agentd.conf on the monitored server?

If the IP address of the server executing the zabbix_get command is not registered, the value can not be acquired.

[fferraro87]

Have you set the values of Server and ServerActive in zabbix_agentd.conf on the monitored server?

If the IP address of the server executing the zabbix_get command is not registered, the value can not be acquired.

yeah, sure i've already set Server and ServerActive with my server IP address but it still doesn't works

[Atsushi]

If the setting is correct, please check with firewall etc for communication restriction.

[fferraro87]

If the setting is correct, please check with firewall etc for communication restriction.

It's strange, i've already set right policy firewall for this communication.
if i do a tcpdump in order to see if there ise some communication between this host and zabbix server i've this :

ZABBIX SERVER

[root@zabbix-server ~]# tcpdump -S -q -i eth0 src 192.168.5.210 
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
10:21:46.650496 IP 192.168.5.210.zabbix-agent > zabbix-server.54002: tcp 0
10:21:46.650992 IP 192.168.5.210.zabbix-agent > zabbix-server.54002: tcp 0
10:21:46.651112 IP 192.168.5.210.zabbix-agent > zabbix-server.54002: tcp 0
10:21:46.651121 IP 192.168.5.210.zabbix-agent > zabbix-server.54002: tcp 0

So i think that the agent on host, send some packets to my server.

[Atsushi]

I checked the source code zabbix_get.c.
The following error message is output, the setting is incorrect.

zabbix_get [21359]: Check access restrictions in Zabbix agent configuration

Because the setting is incorrect, an empty response may be returned.

It is assumed that the value of Server set in zabbix_agentd.conf is not the IP address of the server that executed the zabbix_get command.

Please set DebugLevel in zabbix_agentd.conf to see why it will be an empty response.
Perhaps it should be accessed with an IP address other than the one set for Server.

[fferraro87]

I checked the source code zabbix_get.c.
The following error message is output, the setting is incorrect.

zabbix_get [21359]: Check access restrictions in Zabbix agent configuration

Because the setting is incorrect, an empty response may be returned.

It is assumed that the value of Server set in zabbix_agentd.conf is not the IP address of the server that executed the zabbix_get command.

Please set DebugLevel in zabbix_agentd.conf to see why it will be an empty response.
Perhaps it should be accessed with an IP address other than the one set for Server.

ok thanks, from debug log i see that there's a problem of routing because instead of server ip, i've packets from gateway