Issue Plesk remote database connection from localhost in PHP

[Juyal Ahmed]

I'm working on a CakePHP project which requires the db connected to plesk remote mysql server. If I use below db configuration example
'port' => '3306',
'host' => 'xxx.xxx.xxx.xxx',
'username' => 'usernmae',
'password' => 'pass',
'database' => 'db',

When I run the app getting mysql error connection timeout.

What I have tried so far:

1. Tools & Settings > Database Servers > ALLOW REMOTE CONNECTIONS FROM ANY HOST
2. Databases > Database Users > ALLOW REMOTE CONNECTIONS FROM ANY HOST
3. Tools & Settings > Firewall > I added the following rule : Allow
incoming from all on port 3306/tcp
4. Edited /etc/mysql/my.cnf and changed the bind-address = 0.0.0.0
5. GRANT ALL PRIVILEGES ON *.* TO 'user'@'%'

HERE IS THE CONTENT OF MY my.cnf mysql file:

#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.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]
#bind-address = ::ffff:127.0.0.1
#bind-address = ::
#bind-address = 0.0.0.0
bind-address = ::
local-infile=0
#
# * 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
lc-messages-dir    = /usr/share/mysql
#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.
#
# * Fine Tuning
#
key_buffer        = 16M
max_allowed_packet    = 16M
thread_stack        = 192K
thread_cache_size       = 8
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover         = BACKUP
#max_connections        = 100
#table_cache            = 64
#thread_concurrency     = 10
#
# * Query Cache Configuration
#
query_cache_limit    = 1M
query_cache_size        = 16M
server-id = 23
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
# As of 5.1 you can enable the log at runtime!
#general_log_file        = /var/log/mysql/mysql.log
#general_log             = 1
#
# Error log - should be very few entries.
#
log_error = /var/log/mysql/error.log
#
# Here you can see queries with especially long duration
#slow_query_log_file = /var/log/mysql/mysql-slow.log
#slow_query_log      = 1
#long_query_time = 2
#log_queries_not_using_indexes
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see README.Debian about
#       other settings you may need to change.
#server-id        = 1
#log_bin            = /var/log/mysql/mysql-bin.log
expire_logs_days    = 10
max_binlog_size         = 100M
#binlog_do_db        = include_database_name
#binlog_ignore_db    = include_database_name
#
# * 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/
#
# For generating SSL certificates I recommend the OpenSSL GUI "tinyca".
#
# 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

#
# * IMPORTANT: Additional settings that can override those from this file!
#   The files must end with '.cnf', otherwise they'll be ignored.
#
# !includedir /etc/mysql/conf.d/

 

[Hex]

It seems to me everything is ready except establishing a 3306 connection to the host. It could be any of the fields you mentioned above.

I suggest you to use MySQL Workbench to test your connection directly with Plesk MySQL server and eliminate the server side issues first if there is any, then test with your PHP application.

 

[Hex]

You posted your issue twice.

check if SELinux is enabled

SELinux state

disable it temporary and test.
How to enable/disable SELinux on a server