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Re: A regression bug comparing Stretch to Jessie -was [Re: Doing a clean install with ATYPICAL constraints]

On 05/12/2017 04:09 PM, tomas@tuxteam.de wrote:
Hash: SHA1

On Fri, May 12, 2017 at 02:46:13PM -0500, Richard Owlett wrote:
On 05/12/2017 12:40 PM, deloptes wrote:


It took me a while to realize there is difference from MySQL perspective if
you use localhost and "localhost" goes via unix socket.

en englais s'il vous plait ;<
I don't spell well den Anglais ou Francais <lol>

Eh bien, comment vous voulez. is, you probably know that, the Internet (IPV4, to be more
precise) version of "me". On the network, every host sees itself
(among possibly other things) as

A UNIX socket (or unix domain socket) is an entry in the file system
which behaves roughly like a network connection. Two processes can
talk bidirectionally over it, as they might do over a TCP connection.

The database server can listen to local clients over
(typically on the regular MySQL port) or over a UNIX domain socket.
There is one subtle difference between both: whereas any process
can talk to, you can restrict those who can access the
UNIX domain socket (plus it has a couple of other tricks up its

Thus, when setting up permissions on MySQL, you include the
way the connection has come to the server and it makes sense
to have a different set of permissions depending on whether
things came via a UNIX domain socket (which MySQL calls then
"localhost") or via port. A bit counterintuitive,
because usually one considers and localhost as

C'est mieux?

A little. It was helped by a solid 10 hours of sleep last night ;/

I am convinced there is a regression bug. The $64 question is "Where?"
I suspect a subtle dependency problem. Admittedly based on a personal design philosophy of how dependencies should be defined/specified/chosen/(better word?). I have a laptop which no longer serves its intended purpose. Once I've archived an image of its drive, I'll set it up to be a specialized test-bed multi-booting customized Debian 6, 8, and 9.

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