Many people have created an automated deployment script successfully, so no 
need to worry there. How are you exporting the agent keys from the manager? 
More to the point, WHICH key are you using in your group policy script? If you 
really are using the same key that you would use in the GUI, as you state, then 
that’s the problem. 

 

Here’s an exercise to illustrate the point: manually install an agent, such 
that it is communicating with the manager successfully. Open client.keys on the 
agent and look at the key. Now compare that key to the one in 
/var/ossec/etc/client.keys on the manager. They should be the same. When 
manually shuffling keys about using scripts, there is no need to extract the 
key using manage_agents.

 

From: ossec-list@googlegroups.com [mailto:ossec-list@googlegroups.com] On 
Behalf Of David Masters
Sent: Monday, October 13, 2014 9:19 AM
To: ossec-list@googlegroups.com
Subject: Re: [ossec-list] Windows agents not connecting to OSSEC server

 

The whole purpose of this exercise is to not have to go to each individual 
machine to input the key and configuration.  We have over 3000 machines so that 
really is just not feasible.  If the key & server is input manually when the 
software is installed it works fine.  When the key file and config file are 
pushed out over the network (containing the exact same information that would 
have been input manually), it does not.  This would be to the same machine, 
same configuration, no changes between manual input and pushed input. (except 
that it is not done manually).  

 

If this is not possible, I would like to know this as soon as possible so that 
we can find a different solution for our IPS/IDS/FIM system.

 

Thank you.

 


On Monday, October 13, 2014 10:33:59 AM UTC-5, dan (ddpbsd) wrote:

On Mon, Oct 13, 2014 at 11:21 AM, David Masters 
<dmas...@24-7intouch.com <javascript:> > wrote: 
> 2014/10/13 10:19:11 ossec-remoted(1403): ERROR: Incorrectly formated message 
> from 'any'. 
> 2014/10/13 10:19:13 ossec-remoted(1408): ERROR: Invalid ID for the source 
> ip: '10.50.107.21'. 

Try readding the key to one of these agents manually (not one of the 
"any" agents, but the ones with the IP address specifically). 

> 2014/10/13 10:19:16 ossec-remoted(1408): ERROR: Invalid ID for the source 
> ip: '10.50.107.20'. 
> 2014/10/13 10:19:16 ossec-remoted(1403): ERROR: Incorrectly formated message 
> from 'any'. 
> 2014/10/13 10:19:17 ossec-remoted(1408): ERROR: Invalid ID for the source 
> ip: '10.50.107.21'. 
> 2014/10/13 10:19:22 ossec-remoted(1408): ERROR: Invalid ID for the source 
> ip: '10.50.107.20'. 
> 2014/10/13 10:19:22 ossec-remoted(1403): ERROR: Incorrectly formated message 
> from 'any'. 
> 2014/10/13 10:19:22 ossec-remoted(1408): ERROR: Invalid ID for the source 
> ip: '10.50.107.21'. 
> 2014/10/13 10:19:28 ossec-remoted(1408): ERROR: Invalid ID for the source 
> ip: '10.50.107.21'. 
> 2014/10/13 10:19:54 ossec-remoted(1408): ERROR: Invalid ID for the source 
> ip: '10.50.111.64'. 
> 
> On Monday, October 13, 2014 7:52:05 AM UTC-5, gr...@castraconsulting.com 
> wrote: 
>> 
>> Assuming agent key and IP are distinct for each server, please put the 
>> ossec-control into debug on the server and look for errors such as "not 
>> allowed" and so forth 
>> 
>> On Monday, October 13, 2014 8:04:41 AM UTC-4, Antonio Querubin wrote: 
>>> 
>>> On Sun, 12 Oct 2014, David Masters wrote: 
>>> 
>>> > Ok...here is the log file from a freshly installed agent (shutdown 
>>> > ossec 
>>> > server, removed all rid files, no rid files on agent system, manually 
>>> > entererd key and server address): 
>>> 
>>> > This is the log file from same machine after pushing out key 
>>> > file/ossec.conf file and deleting rid files (no change to any other 
>>> > part of 
>>> > the machine or configuration): 
>>> 
>>> > Verified all information in both files was exactly the same as before 
>>> > and 
>>> > files in rids directory were deleted before service was restarted. 
>>> 
>>> > Any ideas? 
>>> 
>>> Did you remove the corresponding rids file on the server? 
>>> 
>>> Antonio Querubin 
>>> e-mail:  to...@lavanauts.org 
>>> xmpp:  antonio...@gmail.com 
> 
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