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Accès distant MySql - Problème de connexion sur serveur

Bonjour à tous

J’ai depuis peu fait l’acquisition d’un serveur dédié sur lequel je n’héberge à l’heure actuelle que des bases de données MySQL
C’est la première fois que je travaille avec des données qui ne soient pas en local et j’avoue avoir beaucoup de mal à tout comprendre
Pour info le serveur est sous Debian Sarge 3.1
Comment faire pour autoriser une connexion distante à MySQL en lecture et écriture ?
Comment dois je paramétrer mon pilote ODBC ?

Merci d’avance pour votre aide

Par défaut, un serveur MySQL ecoute sur le port 3306. Maintenant il faut verifier si le firewall du serveur dédié ou autre autorise des connexions entrantes sur ce port.

Si c’est ok, tu dois preciser à ta connexion ODBC l’adresse IP (ou son nom de domaine) de ton serveur dédié et les identifiants de connexion MySQL.

Salut,

Mon firewall n’est pas configuré et laisse donc tout passé à l’heure actuelle

Merci pour ton aide

netstat -plunt

pour voir sur quelle ip/port ton serveur écoute.
il me semble que par défaut il écoute sur localhost. a toi de modifier en fonction de tes besoins

Salut

Voilà ce que ça donne

/root$ netstat -plunt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 2540/mysqld
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 1889/exim4
tcp6 0 0 :::22 :::* LISTEN 1924/sshd
tcp6 0 0 :::25 :::* LISTEN 1889/exim4

Que me conseilles tu ?
Merci

bah le serveur écoute en local et tout dépend comment tu vuex t’y connecter

si tu fais de local à local -> rien à changer
si tu veux faire d’autre part vers le serveur tu dois modifier la listen address dans le my.cnf

Pourtant j’ai modifié my.cnf comme ceci :

#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "/var/lib/mysql/my.cnf" to set server-specific options or
# - "~/.my.cnf" to set user-specific options.
# 
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html

# This will be passed to all mysql clients
# It has been reported that passwords should be enclosed with ticks/quotes
# escpecially if they contain "#" chars...
# Remember to edit /etc/mysql/debian.cnf when changing the socket location.
[client]
port  = 3306
socket  = /var/run/mysqld/mysqld.sock

# Here is entries for some specific programs
# The following values assume you have at least 32M ram

# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
socket  = /var/run/mysqld/mysqld.sock
nice  = 0

[mysqld]
#
# * Basic Settings
#
user  = mysql
pid-file	= /var/run/mysqld/mysqld.pid
socket  = /var/run/mysqld/mysqld.sock
port  = 3306
basedir  = /usr
datadir  = /var/lib/mysql
tmpdir  = /tmp
language	= /usr/share/mysql/english
skip-external-locking
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address            = 0.0.0.0
#
# * Fine Tuning
#
key_buffer  = 16M
max_allowed_packet	= 16M
thread_stack  = 128K
#
# * Query Cache Configuration
#
query_cache_limit	= 1048576
query_cache_size        = 16777216
query_cache_type        = 1
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
#log  = /var/log/mysql.log
#log  = /var/log/mysql/mysql.log
#
# Error logging goes to syslog. This is a Debian improvement :)
#
# Here you can see queries with especially long duration
#log-slow-queries	= /var/log/mysql/mysql-slow.log
#
# The following can be used as easy to replay backup logs or for replication.
#server-id  = 1
log-bin  	= /var/log/mysql/mysql-bin.log
# See /etc/mysql/debian-log-rotate.conf for the number of files kept.
max_binlog_size  = 104857600
#binlog-do-db  = include_database_name
#binlog-ignore-db	= include_database_name
#
# * BerkeleyDB
#
# The use of BerkeleyDB is now discouraged and support for it will probably
# cease in the next versions.
skip-bdb
#
# * InnoDB
#
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more InnoDB related options. There are many!
#
# * Security Feature
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# If you want to enable SSL support (recommended) read the manual or my
# HOWTO in /usr/share/doc/mysql-server/SSL-MINI-HOWTO.txt.gz
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem



[mysqldump]
quick
quote-names
max_allowed_packet	= 16M

[mysql]
#no-auto-rehash	# faster start of mysql but no tab completition

[isamchk]
key_buffer  = 16M

C’est bien /etc/mysql/my.cnf ?
J’ai modifié bind address = 0.0.0.0
:pt1cable: :pt1cable: complet là !!
En tout cas ton aide est appréciable

Ca y est ça marche :clap: :clap:
Que je suis naze il suffisait de faire rebooter le serveur une fois les modifs effectuées, je me contentais de redémarrer mysql :pfff:

Merci à :pfff: tous pour votre précieuse aide :super:

Comment fait on pour sujet résolu ?

on n’y poste plus :smiley:

Tu edites le 1er post de ton topic, et tu rajoutes [résolu] dans le titre :slight_smile:

bonjour a tous,

je suis nouveau dans le monde merveilleux de linux. Alors problème.
Voici mon fichier my.cnf:

The MySQL database server configuration file.

You can copy this to one of:

- "/etc/mysql/my.cnf" to set global options,

- "/var/lib/mysql/my.cnf" to set server-specific options or

- "~/.my.cnf" to set user-specific options.

One can use all long options that the program supports.

Run program with --help to get a list of available options and with

–print-defaults to see which it would actually understand and use.

For explanations see

http://dev.mysql.com/doc/mysql/en/server-s…-variables.html

This will be passed to all mysql clients

It has been reported that passwords should be enclosed with ticks/quotes

escpecially if they contain "#" chars…

Remember to edit /etc/mysql/debian.cnf when changing the socket location.

[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock

Here is entries for some specific programs

The following values assume you have at least 32M ram

This was formally known as [safe_mysqld]. Both versions are currently parsed.

[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0

[mysqld]

* Basic Settings

user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
language = /usr/share/mysql/english
skip-external-locking

For compatibility to other Debian packages that still use

libmysqlclient10 and libmysqlclient12.

old_passwords = 1

Instead of skip-networking the default is now to listen only on

localhost which is more compatible and is not less secure.

bind-address = 127.0.0.1

* Fine Tuning

key_buffer = 16M
max_allowed_packet = 16M
thread_stack = 128K

* Query Cache Configuration

query_cache_limit = 1048576
query_cache_size = 16777216
query_cache_type = 1

* Logging and Replication

Both location gets rotated by the cronjob.

Be aware that this log type is a performance killer.

#log = /var/log/mysql.log
#log = /var/log/mysql/mysql.log

Error logging goes to syslog. This is a Debian improvement :slight_smile:

Here you can see queries with especially long duration

#log-slow-queries = /var/log/mysql/mysql-slow.log

The following can be used as easy to replay backup logs or for replication.

#server-id = 1
log-bin = /var/log/mysql/mysql-bin.log
expire-logs-days = 20
max_binlog_size = 104857600
#binlog-do-db = include_database_name
#binlog-ignore-db = include_database_name

* BerkeleyDB

According to an MySQL employee the use of BerkeleyDB is now discouraged

and support for it will probably cease in the next versions.

skip-bdb

* InnoDB

InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.

Read the manual for more InnoDB related options. There are many!

* Security Features

Read the manual, too, if you want chroot!

chroot = /var/lib/mysql/

If you want to enable SSL support (recommended) read the manual or my

HOWTO in /usr/share/doc/mysql-server/SSL-MINI-HOWTO.txt.gz

ssl-ca=/etc/mysql/cacert.pem

ssl-cert=/etc/mysql/server-cert.pem

ssl-key=/etc/mysql/server-key.pem

[mysqldump]
quick
quote-names
max_allowed_packet = 16M

[mysql]
#no-auto-rehash # faster start of mysql but no tab completition

[isamchk]
key_buffer = 16M

* NDB Cluster

See /usr/share/doc/mysql-server-*/README.Debian for more information.

The following configuration is read by the ndbd storage daemons,

not from the ndb_mgmd management daemon.

[MYSQL_CLUSTER]

ndb-connectstring=127.0.0.1

Alors si j’ai tout compris il faut que je change la ligne :

bind-address = 127.0.0.1

par

bind-address = 0.0.0.0

et que je reboot le serveur ?

netstat -plunt me donne:

tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 27730/mysqld

Si c’est pas bon que devrait il donner.

MERCI D’AVANCE !!!!!

Je penses qu’il est un peu tard pour une réponse mais pour nos amis développeurs il est important d’apporter une répondre !!!

En effec darkneit62 ton netstat -plunt doit te donner quelque chose comme çà :

tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 3301/mysqld

Il serait certainement plus simple de directement désaciver la ligne bind-address en le mettant un “#” devant dans le fichier my.cnf.

Dans le cas où, si ton serveur mysql est chez toi il ne faudra pas oublier de faire un NAT en ouvrant le port 3306 pointant vers l’ip local de ton serveur.

Trop d’infos c’est toujours mieux que pas assez :wink: !!!

Have fun
Edité le 23/12/2009 à 19:38