Re: Using mod_rewrite
Re: Using mod_rewrite
- Subject: Re: Using mod_rewrite
- From: Arturo Pérez <email@hidden>
- Date: Tue, 13 Jul 2004 18:43:18 -0400
On Jul 13, 2004, at 3:02 PM, Chuck Hill wrote:
(A) Abandon Ye Direct Connect
(B) -DWOPort=1234
(A) is just basic good advice IMHO (not all agree with me, but they
are wrong ;-) (B) will result in a fixed port #, choose the port you
want
This came up previously and I got really annoyed with the newbie
poster. The phrase "choose the port you want" should not be taken
literally. TCP IP ports have restrictions so one cannot literally
choose any number and expect it to work. The newbie in question wanted
to set it to something like 123456.
The restrictions are:
1) One is not allowed to use ports with integer values less than or
equal to 1024. It's kind of an IETF policy decision.
2) Port numbers are contained within unsigned 16 bit quantities. So,
they range from 0-65535 when expressed as an integer. If one is
tempted to use something less than 1024, see restriction 1. If one is
tempted to use numbers greater than 65535 please review what 16 bit
arithmetic entails.
3) A lot of things use TCP ports on your box already. Don't use one of
those as it's already taken. If you're on a Unix variant you can type
"netstat -an | grep -i listen" to see what the already used ports are.
4) Now, given restrictions 1-3 feel free to pick any of the remaining
(approx) 60,000 ports available for one's personal use :-)
----
WO in philadelphia - wanna cheesesteak with that?
Please visit webobjects.meetup.com.
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