Blocking ports and reseting conections


 
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Operating Systems SCO Blocking ports and reseting conections
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Old 09-28-2006
Blocking ports and reseting conections

Hi folks!

We have SCO Open System V 5.0.5 here.

When I type "netstat -n" I found a line mentioning a conection at the port 1025, as follows:

tcp 0 0 quartzo.1025 200-203-8-90.csl.aas ESTABLISHED

Here we use only conections thru ports 22,23 and 25. I would like to close the acess by other ports directly in the unix system, not in the modem. Is it possible? Can someone point me how to do this?

Also I would like to know how to reset this conection mentioned above without reboot the system. Is there some command to do this?

Sorry me for my questions but I have not much experience.

Best Regards,

Marcio Moraes
Brazil
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Number::Compare(3)					User Contributed Perl Documentation					Number::Compare(3)

NAME
Number::Compare - numeric comparisons SYNOPSIS
Number::Compare->new(">1Ki")->test(1025); # is 1025 > 1024 my $c = Number::Compare->new(">1M"); $c->(1_200_000); # slightly terser invocation DESCRIPTION
Number::Compare compiles a simple comparison to an anonymous subroutine, which you can call with a value to be tested again. Now this would be very pointless, if Number::Compare didn't understand magnitudes. The target value may use magnitudes of kilobytes ("k", "ki"), megabytes ("m", "mi"), or gigabytes ("g", "gi"). Those suffixed with an "i" use the appropriate 2**n version in accordance with the IEC standard: http://physics.nist.gov/cuu/Units/binary.html METHODS
->new( $test ) Returns a new object that compares the specified test. ->test( $value ) A longhanded version of $compare->( $value ). Predates blessed subroutine reference implementation. ->parse_to_perl( $test ) Returns a perl code fragment equivalent to the test. AUTHOR
Richard Clamp <richardc@unixbeard.net> COPYRIGHT
Copyright (C) 2002,2011 Richard Clamp. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
http://physics.nist.gov/cuu/Units/binary.html perl v5.16.2 2011-09-21 Number::Compare(3)