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Full Discussion: false tcp connection
Special Forums IP Networking false tcp connection Post 302401216 by johnbach on Friday 5th of March 2010 07:07:56 AM
Old 03-05-2010
false tcp connection

Why this happens?
How to solve this?
Code:
$netstat -na |grep 9325
tcp        0      0 127.0.0.1:9325              127.0.0.1:9325              ESTABLISHED

When a client socket repeatedly tries to connect to an inactive(no server socket is listening on this port) local port,connect succeeds.

System Information
Code:
$uname -a
Linux pztest.locadomain 2.6.18-92.el5 #1 SMP Tue Apr 29 13:16:15 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux

 

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unbound-streamtcp(1)						      unbound						      unbound-streamtcp(1)

NAME
unbound-streamtcp - unbound DNS lookup utility SYNOPSIS
unbound-streamtcp [-unsh] [-f ipaddr[@port]] name type class DESCRIPTION
unbound-streamtcp sends a DNS Query of the given type and class for the given name to the DNS server over TCP and displays the response. If the server to query is not given using the -f option then localhost (127.0.0.1) is used. More queries can be given on one commandline, they are resolved in sequence. The available options are: name This name is resolved (looked up in the DNS). type Specify the type of data to lookup. class Specify the class to lookup for. -u Use UDP instead of TCP. No retries are attempted. -n Do not wait for the answer. -s Use SSL. -h Print program usage. -f ipaddr[@port] Specify the server to send the queries to. If not specified localhost (127.0.0.1) is used. EXAMPLES
Some examples of use. $ unbound-streamtcp www.example.com A IN $ unbound-streamtcp -f 192.168.1.1 www.example.com SOA IN $ unbound-streamtcp -f 192.168.1.1@1234 153.1.168.192.in-addr.arpa. PTR IN EXIT CODE
The unbound-streamtcp program exits with status code 1 on error, 0 on no error. AUTHOR
This manual page was written by Tomas Hozza <thozza@redhat.com>. NLnet Labs Mar 21, 2013 unbound-streamtcp(1)
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