OpenLDAP on Linux refusing connection to remote JNDI client

Question

Hello,
I have set up an openLDAP server on Linux and its running fine. I have written a small client using JNDI which when run on my windows pc gives me the following exception
at java.lang.Thread.run(Thread.java:534)
javax.naming.CommunicationException: 128.0.7.152:389. Root exception is java.net.SocketException: Connection reset by peer: connect
If I run the same code in a JSP page on the Linux box (on tomcat) I get proper results.
There is no firewall / proxy server (I checked it doing a tracert on the Linux IP)
My client has the following code.
     // Set up environment for creating initial context
     Hashtable env = new Hashtable(11);
     env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
     env.put(Context.PROVIDER_URL, "ldap://128.0.7.152/");
//     env.put(Context.SECURITY_AUTHENTICATION,"simple");
//     env.put(Context.SECURITY_PRINCIPAL,"o=ozone,o=bsil.com");
//     env.put(Context.SECURITY_CREDENTIALS, "secret3");
try {
// Create the initial context
DirContext ctx = new InitialDirContext(env);
ctx.close();
} catch (Exception e) {
e.printStackTrace();
I tried changing the ldap.conf file. It had an entry that said
HOST 127.0.0.1
I made it
HOST 128.0.7.152
But it still did not work.
Please can you help me out.

Answer 1

Which linux distribution you are using, redhat? Maybe you need to open the 389 port from the inside firewall of redhat.