MySQL unable to connect with remote server

Question

We have a MySQL server in one of the remote Virtual Machine (Windows Server 2008). Till yesterday we were able to connect to the MySQL server, with the help of workbench install

Answer 1

For the first time you need to test and make sure your connection to mysql is not blocked by the firewall.

To disable the firewall on each host in your cluster, perform the following steps on each host.

1. Save the existing iptables rule set.

iptables-save > /root/firewall.rules

2. Disable iptables.

For RHEL, CentOS, Oracle, and Debian:

chkconfig iptables off

and

/etc/init.d/iptables stop

For SLES:

chkconfig SuSEfirewall2_setup off

and

rcSuSEfirewall2 stop

For Ubuntu:

service ufw stop

https://www.cloudera.com/documentation/enterprise/5-7-x/topics/install_cdh_disable_iptables.html