Unable to open remote connections Post: 302130923

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Operating Systems Solaris Unable to open remote connections Post 302130923 by red_crab on Wednesday 8th of August 2007 09:49:40 AM

08-08-2007

Registered User

Unable to open remote connections

Hello everybody,
This is an unusual problem that I am facing on my Solaris 9 on Sun Blade 150 workstation. I can ping remote machines (outside subnet) but I can't open up a connection/port on those machines.

For example, `ping ftp.xyz.com` gives ftp.xyz.com is alive but if I do a `ftp ftp.xyz.com` or `telnet ftp.xyz.com 21`; it just gives "Trying ftp.xyz.com..." and fails. This holds true for ALL remote machines for all services (ftp, telnet, http). Gateway/routing is not the problem since pinging works. Name resolution in not a problem since `dig` also works. I haven't configured TCP wrappers or ipfilters. So where can be the problem?

Am I missing something?

Interesting part of the problem is that I can successfully telnet or ftp TO this machine (from a remote machine). But here also, there is a problem: Incoming connections (telnet or FTP) get dropped automatically after a minute or so. Although I can reconnect immediately.

Problem Summary: Outgoing connections are blocked and incoming connections work but get get dropped after some time.

Can anybody come up with something helpful at earliest? Thanks in advance.

red_crab

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LEARN ABOUT SUNOS

jms-ping

asadmin-jms-ping(1AS)						   User Commands					     asadmin-jms-ping(1AS)

NAME

       jms-ping  - checks to see if the JMS provider is up and running

SYNOPSIS

       jms-ping   --user  admin_user  [--password  admin_password]  [--host  localhost]  [--port  4848]  [--passwordfile  filename]  [--secure|-s]
       [--terse=false] [--echo=false] [--interactive=false]

       Checks to see if the JMS provider is up and running. This command is supported in remote mode only.

OPTIONS

       --user		       authorized domain application server administrative username.

       --password	       password to administer the domain application server.

       --host		       machine name where the domain application server is running.

       --port		       port number of the domain application server listening for administration requests.

       --passwordfile	       file containing the domain application server password.

       --secure 	       if true, uses SSL/TLS to communicate with the domain application server.

       --terse		       indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well-
			       formatted data for consumption by a script. Default is false.

       --echo		       setting to true will echo the command line statement on the standard output. Default is false.

       --interactive	       if set to true (default), only the required password options are prompted.

       Example 1: Using jms-ping

       asadmin> jms-ping --user admin --password adminadmin --host bluestar --port 4848 server1
       JMS Ping Status=RUNNING

EXIT STATUS

       0		       command executed successfully

       1		       error in executing the command

       asadmin-create-jmsdest(1AS), asadmin-delete-jmsdest(1AS), asadmin-list-jmsdest(1AS)

J2EE 1.4 SDK							    March 2004						     asadmin-jms-ping(1AS)