Maybe it is better to use port 22 ssh to connect instead of port 3306.
These are currently open ports:
PORT STATE SERVICE
25/tcp open smtp
42/tcp filtered nameserver
80/tcp open http
111/tcp filtered rpcbind
135/tcp filtered msrpc
139/tcp filtered netbios-ssn
445/tcp filtered microsoft-ds
593/tcp filtered http-rpc-epmap
1025/tcp filtered NFS-or-IIS
1068/tcp filtered instl_bootc
1434/tcp filtered ms-sql-m
3128/tcp filtered squid-http
3306/tcp open mysql
4444/tcp filtered krb524
Maybe it is better to use port 22 ssh to connect instead of port 3306. These are currently open ports: PORT STATE SERVICE 25/tcp open smtp 42/tcp filtered nameserver 80/tcp open http 111/tcp filtered rpcbind 135/tcp filtered msrpc 139/tcp filtered netbios-ssn 445/tcp filtered microsoft-ds 593/tcp filtered http-rpc-epmap 1025/tcp filtered NFS-or-IIS 1068/tcp filtered instl_bootc 1434/tcp filtered ms-sql-m 3128/tcp filtered squid-http 3306/tcp open mysql 4444/tcp filtered krb524