It's called the loopback address. The private class of ip is not nonroutable.
On Fri, Dec 16, 2022, 11:10 PM Bill C <bill.cu1234@xxxxxxxxx> wrote:
127.0.0.1 is reserved for your machine. There are series of private addresses in each ip class. 127 series and 192.168 series. They will not work on the internet. A port of 53 would look like 127.0.0.1:53._______________________________________________On Fri, Dec 16, 2022, 11:06 PM ToddAndMargo via users <users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:> On Fri, Dec 16, 2022, 10:31 PM ToddAndMargo via users
> <users@xxxxxxxxxxxxxxxxxxxxxxx <mailto:users@xxxxxxxxxxxxxxxxxxxxxxx>>
> wrote:
>
> Hi All,
>
> I am use to seeing 127.0.0.1, but now I am seeing
> things like 127.0.0.53.
>
> This is used with my caching named server on
> port 53.
>
> So I figured that the last digit was the (local)
> port.
>
> So I tried CUPS: 127.0.0.631. No joy. CUPS
> still wanted 127.0.0.1:631 <http://127.0.0.1:631>.
>
> So what exactly is the last field in 127.0.0.xxx?
>
> Yours in confusion,
> -T
On 12/16/22 19:54, Bill C wrote:
> Up to 255
>
Are they the port number? Or is the
"53" a coincidence?
To me, the port number always comes after
the IP address IP:port
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