Re: Ecommerce site - how?

From	Jerry Stuckle <jstucklex@attglobal.net>
Newsgroups	comp.lang.php
Subject	Re: Ecommerce site - how?
Date	2017-06-27 08:38 -0400
Organization	A noiseless patient Spider
Message-ID	<oitjc0$mqv$1@jstuckle.eternal-september.org> (permalink)
References	(5 earlier) <oirfjf$1na2$1@gioia.aioe.org> <oirgc3$hu4$1@jstuckle.eternal-september.org> <oirinj$1t87$1@gioia.aioe.org> <oirqom$o6b$1@jstuckle.eternal-september.org> <oit529$8v3$1@gioia.aioe.org>

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On 6/27/2017 4:30 AM, R.Wieser wrote:
> Jerry,
> 
>>> You're absolutily right ofcourse, thats exactly why gamers cannot
>>> play their online games for an extended period of time.  The
>>> newsgroups and fora are full with people complaining about it !  /s
>>
>> Which is NOT a problem with DHCP.
> 
> :-) I know.  Thats what that "/s" (short for "end of sarcasm") is all about.
> 
> ... and also the paragraph below (which describes lease renewal)
> 
>> It doesn't matter how long my *computer* is on.  What counts is
>> how long my *router* is on - which is 24/7/365.
> 
> Nope.   Its your *modem* which is the deciding factor here (the one which
> holds the wan IP, not some intermediate router).
>

Nope.  My modem has no ip address.  It just sits there between my ISP's
cable and my router.  It's my router that has an IP address.

> But in the case you actually ment "modem" where you mentioned "router": It
> can just send lease renewal messages, and all would be well -- you could
> keep a fixed IP for as long as your modem doesn't loose its connection to
> the ISP.
> 

I meant exactly what I said.  And there is nothing in the RFC's which
require a DHCP server to reissue the same IP address when the old lease
expires.

>> Whether a lease is extended or not is completely up to the DHCP
>> server. Most will just assign one from a group of free IP addresses.
>>  And since the one just released is at the top of the list, it will get
> reassigned.
> 
> Almost, but not quite.  Renewal does not mean you drop the IP you have and
> do another "I do not have an IP, please give me one" request, it means that
> you are requesting *an extension* of the one you already have (you are
> sending your current IP as the one you would like to get).   Most DHCP
> systems will honor it.
> 

That is *exactly* what it means.  You don't request an extension.  You
request an IP address.  Most DHCP servers will reissue the same one, but
there is no requirement they do so.

> Ofcourse, as some ISPs do not really like you having a fixed IP for some or
> another reason, several have introduced the "lets reset the connection
> somewhere after midnight", meaning that your modems IP changes at that time,
> even when it did not loose its connection.
> 

Or it can be reset at 2:13 in the afternoon or any other time of day.
There is one again no requirement that they reset your IP at any
specific time.

> Bottom line: I don't think that any of them will be daft enough to just
> reset the connection when they feel like it, as it would create havoc for
> *all* kinds of communications (including the already-mentioned gaming
> sessions, but also phonecalls, movie/music stream, etc), especially SSL
> connections (they would just be terminated). They would loose customers in
> droves.
> 

What you *think* is meaningless.  What *happens* is what counts.  And
that is completely up to the ISP.  For instance, I just checked my
router. My lease expires in 74 minutes (about 9:43 AM here).  I may or
may not get a new IP address at that time.  But it doesn't matter
because I don't have any incoming connections.

And no, it doesn't mean phone calls, movie/music stream, SSL
connections, etc. are terminated.  All of those are bi-directional
connections and a change in IP address means at most seven packets would
have to be resent to the new IP.

>>  However, if there is a power failure and the system is out for an
>> extended period of time (we've been without power for as long as
>> five days), a new IP will most probably be reassigned.
> 
> Power-cycling the modem will most often cause the same result (in other
> words (very) short disconnections often do the same (unless the ISP has some
> kind of "lingering" implemented).
> 

Again, maybe or maybe not.  I've had short power outages here and have
unplugged the router for short periods.  Each time the router rebooted
and requested a new IP address.  My ISP gave it the same IP back.

>>> They don't ?    Does that mean I can't go on a holliday and than
>>> just continue shopping either ?    Who could have known ... /s
>>
>> Whether you can or not has absolutely nothing to do with whether
>> the connection is maintained or not.
> 
> One word: Whoosh! (it went over your head).
> 
> But yes, it has got *nothing* to do with the connection.  Which was exactly
> what I tried to convey there (sarcasm and all that).
> 

Gee, I thought the /s meant end of stupidity.

> Regards,
> Rudy Wieser

-- 
==================
Remove the "x" from my email address
Jerry Stuckle
jstucklex@attglobal.net
==================

Thread

Ecommerce site - how? bit-naughty@hotmail.com - 2017-06-25 05:42 -0700
  Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-25 15:30 +0200
    Re: Ecommerce site - how? "J.O. Aho" <user@example.net> - 2017-06-25 16:03 +0200
    Re: Ecommerce site - how? gordonb.y152t@burditt.org (Gordon Burditt) - 2017-06-26 05:43 -0500
      Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-26 17:12 +0200
        Re: Ecommerce site - how? "Christoph M. Becker" <cmbecker69@arcor.de> - 2017-06-26 17:54 +0200
          Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-26 19:40 +0200
            Re: Ecommerce site - how? "J.O. Aho" <user@example.net> - 2017-06-26 21:42 +0200
              Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-26 23:14 +0200
                Re: Ecommerce site - how? "Christoph M. Becker" <cmbecker69@arcor.de> - 2017-06-27 00:28 +0200
                Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-27 10:48 +0200
                Re: Ecommerce site - how? "J.O. Aho" <user@example.net> - 2017-06-27 07:56 +0200
                Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-27 12:27 +0200
                Re: Ecommerce site - how? "J.O. Aho" <user@example.net> - 2017-06-27 19:15 +0200
                Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-27 22:01 +0200
                Re: Ecommerce site - how? "J.O. Aho" <user@example.net> - 2017-06-28 07:07 +0200
                Re: Ecommerce site - how? Gordon Burditt <gordon@hammy.burditt.org> - 2017-06-30 17:08 -0500
        Re: Ecommerce site - how? "J.O. Aho" <user@example.net> - 2017-06-26 18:29 +0200
          Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-26 19:17 +0200
            Re: Ecommerce site - how? Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-26 13:34 -0400
              Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-26 20:11 +0200
                Re: Ecommerce site - how? "J.O. Aho" <user@example.net> - 2017-06-26 21:31 +0200
                Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-26 22:29 +0200
                Re: Ecommerce site - how? "J.O. Aho" <user@example.net> - 2017-06-27 07:19 +0200
                Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-27 11:24 +0200
                Re: Ecommerce site - how? "J.O. Aho" <user@example.net> - 2017-06-27 19:43 +0200
                Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-27 23:09 +0200
                Re: Ecommerce site - how? "J.O. Aho" <user@example.net> - 2017-06-28 07:12 +0200
                Re: Ecommerce site - how? Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-27 21:10 -0400
                Re: Ecommerce site - how? Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-26 16:32 -0400
                Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-27 10:30 +0200
                Re: Ecommerce site - how? Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-27 08:38 -0400
                Re: Ecommerce site - how? "R.Wieser" <address@not.available> - 2017-06-27 17:47 +0200
                Re: Ecommerce site - how? Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-27 12:16 -0400
                Re: Ecommerce site - how? gordonb.bytf1@burditt.org (Gordon Burditt) - 2017-06-29 18:16 -0500
                Re: Ecommerce site - how? Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-29 20:41 -0400
                Re: Ecommerce site - how? gordonb.99a3p@burditt.org (Gordon Burditt) - 2017-06-29 23:39 -0500
                Re: Ecommerce site - how? Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-30 07:28 -0400
                Re: Ecommerce site - how? Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2017-06-30 13:48 +0000
                Re: Ecommerce site - how? gordonb.gcghn@burditt.org (Gordon Burditt) - 2017-06-30 16:15 -0500
                Re: Ecommerce site - how? Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-30 22:35 -0400
                Re: Ecommerce site - how? Richard Damon <Richard@Damon-Family.org> - 2017-06-29 23:46 -0400
        Re: Ecommerce site - how? gordonb.d2wed@burditt.org (Gordon Burditt) - 2017-06-29 17:32 -0500
  Re: Ecommerce site - how? bit-naughty@hotmail.com - 2017-06-27 10:58 -0700
    Re: Ecommerce site - how? Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-27 15:34 -0400
    Re: Ecommerce site - how? gordonb.4psc7@burditt.org (Gordon Burditt) - 2017-06-30 16:55 -0500
      Re: Ecommerce site - how? bit-naughty@hotmail.com - 2017-07-01 03:03 -0700
        Re: Ecommerce site - how? Jerry Stuckle <jstucklex@attglobal.net> - 2017-07-01 09:30 -0400
        Re: Ecommerce site - how? Jerry Stuckle <jstucklex@attglobal.net> - 2017-07-01 09:34 -0400

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