Article View: borland.public.cppbuilder.internet.socket
Article #1151Re: How to determine what port to use?
From: Jason Tribbeck
Date: Wed, 04 Apr 2007 19:19
Date: Wed, 04 Apr 2007 19:19
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David Pratt wrote: > Thanks so much, Bob. Precisely what I was looking for. I would rather not > muck around with reserved ports and inadvertantly crash my system through > ignorance That would be quite difficult to do (if you're listening): - If the port is in use, you wouldn't be able to listen in on it - If the port isn't in use, it probably won't be If you're happy to get the OS to assign a port, then you can use the magic number "0". Otherwise, ports > 4096 aren't often in use. If you're opening to send, then you could have problems connecting to assigned ports (although in these "high security" days, if you send then stuff they don't understand, they should either ignore it, or close the socket. Of course, this isn't guaranteed :) ). -- .sig MIA
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X-Google-Thread: 11508e,eefbc5ce70c2e09b X-Google-Attributes: gid11508e,public X-Google-Language: ENGLISH,ASCII-7-bit Date: Wed, 04 Apr 2007 20:19:32 +0100 From: Jason Tribbeck <newsmaster9@tribbeck.com> User-Agent: Thunderbird 1.5.0.10 (Windows/20070221) MIME-Version: 1.0 Newsgroups: borland.public.cppbuilder.internet.socket Subject: Re: How to determine what port to use? References: <45e4d601@newsgroups.borland.com> <mcp9u2ltre7ltdjcvigv5u26o2uas8i6mq@4ax.com> <45e4f5ca$1@newsgroups.borland.com> In-Reply-To: <45e4f5ca$1@newsgroups.borland.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit NNTP-Posting-Host: 82.68.159.209 Message-ID: <4613fa47$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1175714375 82.68.159.209 (4 Apr 2007 12:19:35 -0800) Lines: 22 Path: arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!news2.google.com!border1.nntp.dca.giganews.com!border2.nntp.dca.giganews.com!nntp.giganews.com!newspeer1.nwr.nac.net!newsfeeds.ihug.co.nz!ihug.co.nz!newsgroups.borland.com!not-for-mail