This is a test environment and I am running as root. (Redhat 3, update 7, Java 1.5_05) I have two machines A (10.17.3.85) and B (10.17.3.87). Machine B has a service running on port 3899 that I would like to connect to from machine A. When the java program is executed from machine A, I get:
java -cp ./PersistenceService.jar com.abc.maxview.persistence.installer.PersistenceInstaller 10.17.3.87 3899 /tmp/psdata_aperia/
debug,connectToService failed: org.omg.CORBA.TRANSIENT: Retries exceeded, couldn't reconnect to 10.17.3.87:3899 vmcid: 0x0 minor code: 0 completed: No org.omg.CORBA.TRANSIENT: Retries exceeded, couldn't reconnect to .java:103)
It appears the 3899 port is not open. I tried opening the port with
iptables -A INPUT -p tcp -d 0/0 -s 0/0 --dport 3899 -j ACCEPT but it did not seem to affect anything.
On machine B,
netstat -an|grep 3899 shows
tcp 0 0 127.0.0.1:3899 0.0.0.0:* LISTEN
=========
nmap -v localhost shows
Starting nmap V. 3.00 (
www.insecure.org/nmap/ )
Host localhost.localdomain (127.0.0.1) appears to be up ... good.
Initiating SYN Stealth Scan against localhost.localdomain (127.0.0.1)
Adding open port 8082/tcp
Adding open port 22/tcp
Adding open port 113/tcp
Adding open port 389/tcp
Adding open port 8009/tcp
Adding open port 6000/tcp
Adding open port 80/tcp
Adding open port 111/tcp
Adding open port 631/tcp
The SYN Stealth Scan took 2 seconds to scan 1601 ports.
Interesting ports on localhost.localdomain (127.0.0.1):
(The 1592 ports scanned but not shown below are in state: closed)
Port State Service
22/tcp open ssh
80/tcp open http
111/tcp open sunrpc
113/tcp open auth
389/tcp open ldap
631/tcp open ipp
6000/tcp open X11
8009/tcp open ajp13
8082/tcp open blackice-alerts
Nmap run completed -- 1 IP address (1 host up) scanned in 3 seconds
==========================
From machine A, telnet 10.17.3.87 shows
telnet: Unable to connect to remote host: Connection refused
