On 4/4/25 05:57, to...@tuxteam.de wrote:
On Fri, Apr 04, 2025 at 05:17:24AM -0400, gene heskett wrote:
On 4/3/25 09:29, Greg wrote:
On 2025-04-03, Dan Purgert <d...@djph.net> wrote:
That's what you want: as the address is in the 127.0.0.0 network,
pinging it will ping itself, and it gets a reply. It doesn't
require your LAN to be set up, and AIUI it's like localhost
(127.0.0.1) in that it doesn't touch the network hardware.
Indeed, the entirety of 127.0.0.0/8 is the virtual loopback adapter
(i.e. "localhost").
Doubtless yet another fallacious notion, but I thought IPV6 opened up
the flood gates of assigning "real" ip addresses to whatever the heck
Gene's talking about.
I guess it isn't happening any time soon.
The more rural WV areas are an ipv6 desert, and given Debian's penchant for
ipv6, its disabled here. I've no clue, but it seems to me that if it gets
no replies trying ipv6, it should fall back to ipv4.
The problem is what is "it". Currently it's each application (using some
underlying library). The normal path is:
- resolve the name (there you can get both A and AAAA records, if
the programmers know what they are doing)
- try one of them: which one first? Wait for some timeout (how
long?) try next.
- ideally, try all of them in parallel (suddenly you end up with
an application written in non-blocking style or -GAH!- even
some multi-threaded monster.
The solution is underway, is called "happy eyeballs" [1] and will be
here some day.
At the DNS resolution level you can prioritise whatever suits you by
editing /etc/gai.conf, which comes with a man page.
Which in my case, never heard about before, was there but 100% commented
out. Uncommented what claimed be ipv4 preference but it didn't do
anything for my freezes.
Thank you Tomas.
Cheers
[1] https://en.wikipedia.org/wiki/Happy_Eyeballs
Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
