can not connect to mysql by external network ip -


i'm using centos 6.5 64bit , mysql-server-5.5.43-29.el6.art.x86_64 external network ip address 118.192.87.188

first:

vim /etc/sysconfig/iptables -a input -m state --state new -m tcp -p tcp --dport 3306 -j accept :wq

second:

yum -y install mysql mysql-server /etc/init.d/mysqld start chkconfig mysqld on cp /usr/share/mysql/my-medium.cnf /etc/my.cnf

third:

mysql_secure_installation     ....... "thanks using mysql!"

forth:

/etc/init.d/mysqld restart

fifth:

mysql -uroot -ppasswd -p3306 mysql>use mysql; mysql>select user,host user; mysql>update user set host='%' user='root'; mysql>grant privileges on *.* 'root'@'%' identified 'passwd' grant option; mysql>flush privileges;

question: can connect mysql in centos using:

mysql -uroot -ppasswd -p3306 mysql -uroot -ppasswd -hlocalhost -p3306 mysql -uroot -ppasswd -h127.0.0.1 -p3306 mysql -uroot -ppasswd -h118.192.87.188 -p3306

but in ubuntu:

mysql -uroot -ppasswd -h118.192.87.188 -p3306

30 seconds later:

error 2003 (hy000): can't connect mysql server on '118.192.87.188' (110)


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