( ! ) 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	233280	{main}( )	.../index.php:0
2	0.0001	233720	require( '/app/nginx_web/blog/wp-blog-header.php' )	.../index.php:17
3	0.0001	234384	require_once( '/app/nginx_web/blog/wp-load.php' )	.../wp-blog-header.php:13
4	0.0001	235168	require_once( '/app/nginx_web/blog/wp-config.php' )	.../wp-load.php:37
5	0.0001	236424	require_once( '/app/nginx_web/blog/wp-settings.php' )	.../wp-config.php:96
6	0.0020	764616	require_wp_db( )	.../wp-settings.php:120
7	0.0021	819160	wpdb->__construct( )	.../load.php:427
8	0.0021	820280	wpdb->db_connect( )	.../wp-db.php:639
9	0.0022	822024	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	233280	{main}( )	.../index.php:0
2	0.0001	233720	require( '/app/nginx_web/blog/wp-blog-header.php' )	.../index.php:17
3	0.0001	234384	require_once( '/app/nginx_web/blog/wp-load.php' )	.../wp-blog-header.php:13
4	0.0001	235168	require_once( '/app/nginx_web/blog/wp-config.php' )	.../wp-load.php:37
5	0.0001	236424	require_once( '/app/nginx_web/blog/wp-settings.php' )	.../wp-config.php:96
6	0.0020	764616	require_wp_db( )	.../wp-settings.php:120
7	0.0021	819160	wpdb->__construct( )	.../load.php:427
8	0.0021	820280	wpdb->db_connect( )	.../wp-db.php:639
9	0.0024	821760	wpdb->db_connect( )	.../wp-db.php:1638
10	0.0024	821904	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	233280	{main}( )	.../index.php:0
2	0.0001	233720	require( '/app/nginx_web/blog/wp-blog-header.php' )	.../index.php:17
3	0.0001	234384	require_once( '/app/nginx_web/blog/wp-load.php' )	.../wp-blog-header.php:13
4	0.0001	235168	require_once( '/app/nginx_web/blog/wp-config.php' )	.../wp-load.php:37
5	0.0001	236424	require_once( '/app/nginx_web/blog/wp-settings.php' )	.../wp-config.php:96
6	0.0020	764616	require_wp_db( )	.../wp-settings.php:120
7	0.0021	819160	wpdb->__construct( )	.../load.php:427
8	0.0021	820280	wpdb->db_connect( )	.../wp-db.php:639
9	0.0024	821760	wpdb->db_connect( )	.../wp-db.php:1638
10	0.0024	821904	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.