What is the default port for SQL Server? By default SQL Server listens on TCP port number 1433, but for named instances the TCP port is dynamically configured. There are several options available to get the listening port for a SQL Server named instance.
Why is port 443 secure? HTTPS is secure and is on port 443, while HTTP is unsecured and available on port 80. Information that travels on the port 443 is encrypted using Secure Sockets Layer (SSL) or its new version, Transport Layer Security (TLS) and hence safer.
Why is port 1433 blocked? Port 1433 disabled on the MS-SQL Server
In previous versions of MS-SQL server, port 1433 was enabled (open) by default, but as a hardening procedure implemented to improve security of the MS-SQL server, port 1433 is disabled in current versions of MS-SQL Server.
What port does MySQL run on? Client – Server Connection Ports
Port 3306 is the default port for the classic MySQL protocol ( port ), which is used by the mysql client, MySQL Connectors, and utilities such as mysqldump and mysqlpump.