[ossec-list] Agents unable to send messages to Server

[Martin Gottlieb]

Hello, I am trying to set up a new install of OSSEC and am having difficulty getting the agents to communicate with the server.  All machines have port 1514 open and I have added the agent machines' ip addresses to the server config (using <allowed-ips> ) and generated and imported new authentication keys on each Agent. In the server log, I am seeing lots of messages like this: 2006/08/03 13:57:54 ossec-remoted(2202): Error uncompressing string. Are there any dependencies on the versions of zlib ? My Server is running Fedora Core release 4 (Stentz), which has zlib version zlib-1.2.2.2-5.fc4 One Agent  is running RH7.3 with zlib 1.1.4-8.7x and another is running RH ES 3 with zlib 1.1.4-8.1 The first agent is logging errors like: 2006/08/03 13:13:23 ossec-agentd(1218): Unable to send message to server. while the other agent is not logging any errors at all. Any ideas ?  Sorry if I've omitted any pertinent info, I'll be happy to provide additional config info if it would be helpful. Thanks. Martin