Problem to bind to local ports on Fedora 13

Operating Systems Linux Red Hat Problem to bind to local ports on Fedora 13

11-17-2010

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Problem to bind to local ports on Fedora 13

A problem with binding to local ports (22,23,80) in Fedora 13.
Ports look not used. sshd, webserver is not running.
I am using java remote connection manager. It is working fine with IE or Firefox in Windows with any user account.
With Fedora 13, it starts via Firefox with not root account and cannot bind to local ports.

I disabled SELinux, firewall, add a gui session user to the root group it doesn't help. If I start firefox as root and then run java remote connection manager via firefox it agains shows up a gui session user.

Please advice how to fix binding to local ports !

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LEARN ABOUT FREEBSD

tcpdrop

TCPDROP(8)						    BSD System Manager's Manual 						TCPDROP(8)

NAME

     tcpdrop -- drop TCP connections

SYNOPSIS

     tcpdrop local-address local-port foreign-address foreign-port
     tcpdrop [-l] -a

DESCRIPTION

     The tcpdrop command may be used to drop TCP connections from the command line.

     If -a is specified then tcpdrop will attempt to drop all active connections.  The -l flag may be given to list the tcpdrop invocation to drop
     all active connections one at a time.

     If -a is not specified then only the connection between the given local address local-address, port local-port, and the foreign address
     foreign-address, port foreign-port, will be dropped.

     Addresses and ports may be specified by name or numeric value.  Both IPv4 and IPv6 address formats are supported.

     The addresses and ports may be separated by periods or colons instead of spaces.

EXIT STATUS

     The tcpdrop utility exits 0 on success, and >0 if an error occurs.

EXAMPLES

     If a connection to httpd(8) is causing congestion on a network link, one can drop the TCP session in charge:

	   # sockstat -c | grep httpd
	   www	    httpd      16525 3	tcp4 
		   192.168.5.41:80	192.168.5.1:26747

     The following command will drop the connection:

	   # tcpdrop 192.168.5.41 80 192.168.5.1 26747

     The following command will drop all connections but those to or from port 22, the port used by sshd(8):

	   # tcpdrop -l -a | grep -vw 22 | sh

SEE ALSO

     netstat(1), sockstat(1)

AUTHORS

     Markus Friedl <markus@openbsd.org>
     Juli Mallett <jmallett@FreeBSD.org>

BSD
								 January 30, 2013							       BSD

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