( ! ) Warning: mysqli_real_connect(): (HY000/2002): Connection refused in /app/nginx_web/blog/wp-includes/wp-db.php on line 1612
Call Stack
#	Time	Memory	Function	Location
1	0.0000	233256	{main}( )	.../index.php:0
2	0.0001	233696	require( '/app/nginx_web/blog/wp-blog-header.php' )	.../index.php:17
3	0.0001	234360	require_once( '/app/nginx_web/blog/wp-load.php' )	.../wp-blog-header.php:13
4	0.0001	235144	require_once( '/app/nginx_web/blog/wp-config.php' )	.../wp-load.php:37
5	0.0001	236400	require_once( '/app/nginx_web/blog/wp-settings.php' )	.../wp-config.php:96
6	0.0019	764576	require_wp_db( )	.../wp-settings.php:120
7	0.0020	819120	wpdb->__construct( )	.../load.php:427
8	0.0020	820240	wpdb->db_connect( )	.../wp-db.php:639
9	0.0021	821984	mysqli_real_connect ( )	.../wp-db.php:1612

( ! ) Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /app/nginx_web/blog/wp-includes/wp-db.php on line 1643
Call Stack
#	Time	Memory	Function	Location
1	0.0000	233256	{main}( )	.../index.php:0
2	0.0001	233696	require( '/app/nginx_web/blog/wp-blog-header.php' )	.../index.php:17
3	0.0001	234360	require_once( '/app/nginx_web/blog/wp-load.php' )	.../wp-blog-header.php:13
4	0.0001	235144	require_once( '/app/nginx_web/blog/wp-config.php' )	.../wp-load.php:37
5	0.0001	236400	require_once( '/app/nginx_web/blog/wp-settings.php' )	.../wp-config.php:96
6	0.0019	764576	require_wp_db( )	.../wp-settings.php:120
7	0.0020	819120	wpdb->__construct( )	.../load.php:427
8	0.0020	820240	wpdb->db_connect( )	.../wp-db.php:639
9	0.0023	821720	wpdb->db_connect( )	.../wp-db.php:1638
10	0.0023	821864	mysql_connect ( )	.../wp-db.php:1643

( ! ) Warning: mysql_connect(): Connection refused in /app/nginx_web/blog/wp-includes/wp-db.php on line 1643
Call Stack
#	Time	Memory	Function	Location
1	0.0000	233256	{main}( )	.../index.php:0
2	0.0001	233696	require( '/app/nginx_web/blog/wp-blog-header.php' )	.../index.php:17
3	0.0001	234360	require_once( '/app/nginx_web/blog/wp-load.php' )	.../wp-blog-header.php:13
4	0.0001	235144	require_once( '/app/nginx_web/blog/wp-config.php' )	.../wp-load.php:37
5	0.0001	236400	require_once( '/app/nginx_web/blog/wp-settings.php' )	.../wp-config.php:96
6	0.0019	764576	require_wp_db( )	.../wp-settings.php:120
7	0.0020	819120	wpdb->__construct( )	.../load.php:427
8	0.0020	820240	wpdb->db_connect( )	.../wp-db.php:639
9	0.0023	821720	wpdb->db_connect( )	.../wp-db.php:1638
10	0.0023	821864	mysql_connect ( )	.../wp-db.php:1643

WordPress › Error

Connection refused

Error establishing a database connection

This either means that the username and password information in your wp-config.php file is incorrect or we can’t contact the database server at 172.18.9.27. This could mean your host’s database server is down.

Are you sure you have the correct username and password?
Are you sure that you have typed the correct hostname?
Are you sure that the database server is running?

If you’re unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.