php远程连接mysql错误

$host = "192.168.1.197";
$user = "root";
$pass = "rootpassword";
$database = "sample1";
$con = mysql_connect("$host", "username", "password") or die(mysql_error());
$db="$database"; @mysql_select_db($db, $con);

 

出现错误：Can't connect to MySQL server on '192.168.1.197' (13)
但是用mysql -h 192.168.1.197 -u root -p可以连接
故障原因：是因为client的selinux在做怪
把selinux关掉，并重启
mysql服务端配置文件my.cnf加上
[client]
port = 3306
socket = /var/l