Lost connection to mySQL server connection at reding initial communication package system error :104

rigozam · 08-23-2021, 11:05 AM

this is the error on the web app GLPI
A link to the SQL server could not be established. Please check your configuration.

Le serveur Mysql est inaccessible. Vérifiez votre configuration.

i hope you can help me..

computersavvy · 08-23-2021, 11:59 AM

What distro?
What version?
Is it fully updated?
Have you checked your firewall and verified it allows mysql connections?
Have you read the documentation and gone through your config as the error message says?

Code:

A link to the SQL server could not be established. Please check your configuration.

rigozam · 08-23-2021, 01:30 PM

SO Debian 9.3, its fully updated.
PHP7 Mysql 5.3
the firewall it's free
and the VM was up and running.

TenTenths · 08-24-2021, 05:30 AM

You need to provide more information, is this a local or remote MySQL server? If it's remote then you need to ensure that the MySQL daemon is configured to listen on the relevant network interface. At some point MySQL defaulted to only listen on localhost/127.0.0.1 rather than all interfaces so you may need a bind-address directive in your my.cnf

boughtonp · 08-24-2021, 08:21 AM

Quote:

Originally Posted by rigozam

SO Debian 9.3, its fully updated.

v9.13 is the latest Debian 9

Quote:

PHP7

PHP 7.what?

(There are potentially significant differences between 7.0 and 7.4)

Quote:

Mysql 5.3

There is no such version as MySQL 5.3 - it jumped from 5.1 to 5.5, and neither of those are still maintained.

And if this is a MySQL issue, the full version number is even more relevant.

Quote:

and the VM was up and running.

Are you saying everything had been working fine, then something changed and it stopped working?

If so, and you didn't make that change, check relevant log files for clues as to what it might have been.

sundialsvcs · 08-24-2021, 09:06 AM

Clearly, the initial connection-request packet isn't getting through.

Please help us solve your problem.

First, show us the relevant portions of the configuration file(s).
Then, describe to us what you think your network configuration looks like.
Also, reassure us that you've already used tools like ping and tell us anything about (e.g.) firewall rules and so on.

Without these things, "we're just as clueless right now as you are."