Encrypt Your Connections

John Martin shows that part of securing your environment includes encrypting SQL Server connections:

In order to demonstrate just how easy it can be to get hold of the information inside the TDS packets I will be using Network Monitor from Microsoft, this will capture the network packets sent and allow me to see the details of what is being sent. Other tools such as Wireshark will also provide a level of insight into what is being sent between the application and SQL Server. I have configured three Windows Server 2012 R2 systems, one with the client (SQLCMD), one with SQL Server, and finally one which will act as a router between the two subnets that each server is on. This configuration can be seen below;

Wireshark is a good friend of mine.  It should be a good friend of yours, too, but only if your environment allows you to have a packet capture tool installed.

Related Posts

Active Directory Integration On Ubuntu

Drew Furgiuele shows how to configure SQL Server on Linux to use Windows authentication: In the following post, we’ll walk through joining a Linux SQL Server on Unbuntu to an Active Directory domain, and here’s the steps we’re going to take: Installing the required software and services to enable a Linux host to talk to […]

Read More

Homoglyphs And SQL Injection

Bert Wagner gives us one more reason why blacklists are bad: Homoglpyhs can exist within a character set (like the Latin character set examples above) or they can exist between character sets. For example, you may have the unicode apostrophe ʼ, which is a homoglyph to the Latin single quote character '. How does SQL Server handle unicode […]

Read More


March 2016
« Feb Apr »