localhost

[Michael Butash]

Are you running a local web server on port tcp/80/443, otherwise why
connection to localhost?  You need a server like apache, nginx, or whatever
web server listening on 80/443 for a browser to find a webpage on
localhost, which is your system.  Otherwise the browser won't find a socket
to connect to let alone a web page, which is what it's telling you.

## this will show you anything listening locally on http|https ports and
what app did it
sudo ss -tpl | grep http

## try to connect if you think you should see an open socket from above,
below fails
[~]# telnet 127.0.0.1 80
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused

No active firewall right?

If you wanted to you can limit host access to bind external sockets like
80/443, or whatever to only 127.0.0.0/8 meaning only local processes can
access sockets, not even someone on your local lan.  This is a security
practice in application cases for high-speed caching or inter-process
communications local to this system only.

-mb

On Sat, Oct 9, 2021 at 12:24 PM Michael via PLUG-discuss <
plug-discuss at lists.phxlinux.org> wrote:

> the browser shows the error as:
> The site could be temporarily unavailable or too busy. Try again in a few
> moments.
>     If you are unable to load any pages, check your computer’s network
> connection.
>     If your computer or network is protected by a firewall or proxy, make
> sure that Firefox is permitted to access the Web.
>
> I need to specify a port. Cool. That's all I needed to know.
>
>
> On Sat, Oct 9, 2021 at 3:05 PM James Mcphee via PLUG-discuss <
> plug-discuss at lists.phxlinux.org> wrote:
>
>> Regarding the original question of why the browser is saying "problem
>> with address", what is the actual error?  Name resolution, connection,
>> cert, etc etc?  Those friendly human readable errors leave too much open to
>> interpretation.
>>
>> On Sat, Oct 9, 2021 at 11:59 AM Snyder, Alexander J via PLUG-discuss <
>> plug-discuss at lists.phxlinux.org> wrote:
>>
>>>
>>> The IP address range *127.0.* *0.0 – 127.255.* *255.255* is reserved
>>> for loopback, i.e. a Host's self-address, also known as localhost address.
>>> This loopback IP address is managed entirely by and within the operating
>>> system.
>>>
>>> Thanks,
>>> Alexander.
>>>
>>> Sent from my Samsung S20+ 5G
>>>
>>> On Sat, Oct 9, 2021, 11:58 greg zegan via PLUG-discuss <
>>> plug-discuss at lists.phxlinux.org> wrote:
>>>
>>>> localhost <https://en.wikipedia.org/wiki/Localhost>
>>>>
>>>> localhost
>>>>
>>>> The local loopback mechanism may be used to run a network service on a
>>>> host without requiring a physical network...
>>>> <https://en.wikipedia.org/wiki/Localhost>
>>>>
>>>>
>>>> you need to specify the port number
>>>>
>>>>
>>>>
>>>> On Saturday, October 9, 2021, 02:29:07 PM EDT, Michael via PLUG-discuss
>>>> <plug-discuss at lists.phxlinux.org> wrote:
>>>>
>>>>
>>>> Are the addresses for localhost 127.0.0.1 and 127.0.1.1 ? That was a
>>>> rhetorical question. What isn't rhetorical is why, when I enter either of
>>>> those addresses into a browser , do I get a 'problem with address' page?
>>>> Are there
>>>> --
>>>> :-)~MIKE~(-:
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>>>
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>>
>>
>>
>> --
>> James McPhee
>> jmcphe at gmail.com
>> ---------------------------------------------------
>> PLUG-discuss mailing list - PLUG-discuss at lists.phxlinux.org
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>
>
>
> --
> :-)~MIKE~(-:
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