zabbix_get / no return value

[Kai]

hi colleagues,

last week I installed zabbix (version 1.6.5) on OpenSuse 11.1 and now there is one server (runnin server and agentd daemons) and one client with an agentd to learn more about zabbix.

When I read in the forum I saw some hints about zabbix_get.

And therefore I tried it :
---------------
/usr/local/zabbix/sbin/zabbix_get -s 127.0.0.1 -p 10050 -k"vfs.fs.size[/,free]"
----------------

But I got no return value from the command "zabbix_get"

After RETURN I got only an empty line (zabbix account) and the command prompt (root account) respectively

In the WEB interface I can see the values.

Is there some who knows of the problem.

regards, Kai

[Kai]

ok, more information and experiences

/usr/local/zabbix/sbin/zabbix_get -s XXX.XXX.XXX.XXX -p 10050 -k"vfs.fs.size[/,free]"

works on the zabbix server but not on the zabbix client .....

regards, Kai

[Calimero]

In zabbix_agentd.conf Server= must contain the IP of the server or else agent will drop incoming connections (from unknown hosts).

[Kai]

in the two /etc/zabbix/zabbix_agentd.conf files (server and client) the Server parameter ist set to the IP Adress of the zabbix Server.

On the server I get a value by the zabbix_get command but only an empty line
on the client

regards, Kai

[nelsonab]

The Zabbix agent will reject any connections from an IP address other than the Zabbix server. That's what Calimero was referring to. If you want to be able to use Zabbix_get from the client you'd need to add the client IP as a server.

[Calimero]

On the server I get a value by the zabbix_get command but only an empty line
on the client

If your hosts are multi-homed (many eth interfaces with different IPs), you have to make sure that zabbix_agentd accepts incoming connections from the right IP / right subnet.

You can set multiple source IP/servers that zabbix_agentd will accept to respond to:
Server=IP1,IP2,IP3,...

[nelsonab]

There is also a -I option for source address.

[Kai]

that's it

I changed the "Server=" line in the zabbix_agentd.conf file to

Server=IP-Client,IP-Server

and it works

Thanks for the help
Kai
P.S. I think it will be not the last question from me ;-)

[NOB]

that's it

I changed the "Server=" line in the zabbix_agentd.conf file to

Server=IP-Client,IP-Server

and it works

Thanks for the help
Kai
P.S. I think it will be not the last question from me ;-)

Sure, there will be another question from you:

Simply because the IP-addresses on the

Server=

line are in the wrong order for active checks. So active checks
won't work.

You should put the IP-address of the ZABBIX-Server always first
in the line. This is the IP-address where all active checks are send to
and the list of active checks are retrieved from.
As you might have noticed, the zabbix_get is almost useless on
the agent. Why would you want to put a client IP address on the
Server= line in the configuration ?
Why this application is only created if you run ./configure --enable-agent is beyond my imagination
and just confuses newbies ;-)

Regards

Norbert.

[Kai]

I noticed the wrong order of the ip adresses
After changing active checks works

When I left only the IP adress of the Zabbix Server in the SERVER= line
some other error messages in the zabbix_server.log disappeared.

thanks for help
Kai

[par]

zabbix_get is the only way to test UserParameter - which i have found the hard way.

I guess that's why it's included in --enable-agent

However, you must not forget to add 127.0.0.1 as second ip address in servers list, AND, make sure you have passive checks enabled and listening on 127.0.0.1.