| Re: excluding an ip from count [message #183308 is a reply to message #183290] |
Sun, 20 October 2013 14:08   |
Lew Pitcher
Messages: 60
Registered: April 2013
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On Saturday 19 October 2013 19:52, in comp.lang.php, "richard"
<noreply(at)example(dot)com> wrote:
> On Sat, 19 Oct 2013 11:34:36 -0400, Lew Pitcher wrote:
>
>> On Saturday 19 October 2013 11:06, in comp.lang.php, "Evan Platt"
>> <evan(at)theobvious(dot)espphotography(dot)com(dot)invalid> wrote:
>>
>>> On Fri, 18 Oct 2013 16:14:52 -0700, Scott Johnson
>>> <noonehome(at)chalupasworld(dot)com> wrote:
>>>
>>>> Again, if he has a shared IP then he may be losing counts from others
>>>> whose ISP use the same IP. As for 'probably', how would it be if your
>>>> bank says your account is 'probably' secure? ;)
>>>
>>> I'm not sure what you mean by 'shared ip'.
>>>
>>> And "Others whose ISP use the same IP" doesn't make sense - an ISP
>>> owns the IPs. So someone on say AT&T would never get the same IP as
>>> someone on say Verizon or Comcast.
>>
>> True. However, someone on, say AT&T, may get an IP address that had been
>> previously assigned to /someone else/ on AT&T. Many ISP's use "dynamic"
>> IP address assignments, and force their clients to change addresses on
>> occasion.
>>
>> Also, many clients use IPv4 NAT to connect multiple devices to the
>> internet through one "public" IP address. Mom's laptop and Dad's desktop
>> would, while having different private IP addresses within their home LAN,
>> have the same IP address to Richard's website.
>
> Several years ago I tried explaining the concept of shared IP's.
> Evan fails to understand it.
> He is under the assumption, one IP equsls one person.
> Evan fails to understand that many websites can share the same IP.
> Although there are websites out there that will show you just how many
> websites reside on any given IP.
>
> An IP is assigned to a server. Not each and every PC or machine.
Sorry, but not really.
Each "host" on a TCP/IP network has one (or more, usually more) IP address.
It is true that a "server" may have an IP address (usually, it has more
than one IP address). However, it is also true that /each and every PC or
machine/ on a TCP/IP network (including home LANs) has it's own, individual
and unique, IP address (or two, or more).
> Software within the routing systems keeps track of who gets what and when.
And the router routes by way of IP addresses.
> And this comes from a guy who claims to be an IT expert in routers?
Sorry, but I'd trust his expertise over yours in this matter.
--
Lew Pitcher
"In Skills, We Trust"
PGP public key available upon request
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