understanding proxy mode

[Mario]

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Hi

To check if the proxy mode it is working correctly you need to activate this mode in an agent (A), and configure in other agent (B), the ip of this agent (A).

Automatically in pandora_server, you have to receive the XML file of the agent (B), that pass for agent (A)
http://wiki.pandorafms.com/index.php?title=Pandora:Documentation_en:Operations#Proxy_Mode

Regards

[JunesePeter]

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hi

okay i made all the settings like described but should the agent B appear automatically in the web console or do i have to add it also manually?

regards
Peter

[Mario]

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If you have setting ” autocreate 1 ” in your pandora_server.conf, should be created automatically like normal agents are created.

[JunesePeter]

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Ok, but must both agents installed as user with non root privileges or only agent A who has proxy mode activated?
i only installed agent A as non root user…

could that be the mistake?

Regards
Peter

[Mario]

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No, only the Agent A must be with non root user.

Check the Agent A firewall. It’s possible that is enabled and the listening port tentacle off…

[JunesePeter]

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So,
i’ve done a complete reinstall of the Client A and now there is only one more issue i don’t come along with:
Client B tells me in the agent log:

2013/12/18 09:50:21 – [error] – Error sending file ‘/tmp/ClientCentOS.1387356621.data’: [err] Cannot connect to 192.168.x.x on port 41121: Verbindungsaufbau abgelehnt.
(connection rejected)

but the firewall cannot be the problem it doesn’t matter whether it’s on or off, it’s not working…

And the same error is sending Client A with the IP of the Pandora Server…

I think missed any basic setting… but i don’t know which

[JunesePeter]

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Update:

i was such a dumbass. incredible.

for my clientA i forgot yesterday to start up the tentacle server on my pandora…

at the time the client A is added to my monitored enviroment but i can’t get client B to my enviroment.
still the same error like at the last post!
maybe also such a basic thing i forgot…

if someone has an idea how to get client b added…

thanks

[Sancho]

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Update:

i was such a dumbass. incredible.

for my clientA i forgot yesterday to start up the tentacle server on my pandora…

at the time the client A is added to my monitored enviroment but i can’t get client B to my enviroment.
still the same error like at the last post!
maybe also such a basic thing i forgot…

if someone has an idea how to get client b added…

thanks

Until I’ve read:

Agent A has the proxy mode enabled.
Agent B connect the server using Agent A proxy.

So:

Check manually from AGENT B (telnet 41121). That should be OK.
Check manually from AGENT A (telnet 41121). That should be OK.

[JunesePeter]

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i tried to connect over telnet.

from agent b to agent a on port 41121: connection refused

from agent a to pandora_srv on port 41121: connected and after a few seconds – connection closed by foreign host

but i checked the conf and i don’t recognize the issue…

[JunesePeter]

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I tried to open the port over iptables no result…
i looked up the ports with nmap and it shows that the port is closed although its open…

is there any special tentacle daemon/client i have to install ,too?

[Mario]

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Hi

The only thing that must be correctly installed and started is the tentacle  server /etc/init.d/start tentacle_served. Once this it’s started should be open the port.

As a test, you can start the server tentacle in Agent A to another port, such as 41122 and configure the agent B to send the information for the same port 41122, thus identify whether there may be some kind of conflict in the system with the default port.

[JunesePeter]

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I also tried to send files per tentacle client from agent b to the server over port 41121 and it works…

but it still doesn’t work to send data from b to a…

[Mario]

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Have you tried with the port 41122?

You can set this port in /etc/init.d/tentacle_serverd of Agent A

Regards

[JunesePeter]

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well, but i don’t have this data…

i installed the tentacle server on the agent a after i changed the agent-configuration to proxy mode and i followed these instructions
http://www.openideas.info/wiki/index.php?title=Tentacle:UserGuide#Installing_the_PERL_version
chapter: To install just the server run

UPDATE: the data /etc/init.d/tentacle_serverd doesn’t exist, BUT the Agent B appeared in the Pandora Web Console… I don’t know why, i changed nothing!

[Mario]

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Then, Is Agent B reporting correctly to Pandora pointing to agent A?

[JunesePeter]

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yeah i would think so… but i’m still wondering why it is working now.

nevertheless thanks for your help and if other problems occure, i will report.

one last question: how can i test the reporting of b over a to the server?
i mean it works but i don’t know whether it works correctly

regards

[Mario]

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Executing netstat command in Agent A, you can see all the conections performed.

F.E: netstat -c | grep 41121

[JunesePeter]

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semms to be ok!

thanks for the help!

best regards

[JunesePeter]

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*seems 🙂