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Check for open MS-SQL server port

Check The MS-SQL-port on your server is active.
Description A Port is open on Your Server, which is usually used to Operate the MS-SQL Database. This potentially makes it possible to access the Database remotely.
Background Programs running on your server can open so-called ports. A port can be imagined as a door. With some ports (doors), you want them to be open so that, for example, customers can visit your website. With other ports (doors), you don't want them to be open. You should close ports that you don't use. This will allow attackers to attack your server from fewer sites.
Consequence Open ports do not represent a _direct_ vulnerability for now. The configuration of your server, however, increases the attack surface for attackers. You should not offer services that you do not use and it is best to disable insecure services altogether.
Solution/Tips In most Cases, it is not wanted to be able to remotely establish a direct Connection to the Database. If this is not intended, you should switch off remote access.