How to ensure the security of SQL Server database

At present, application-level intrusions against SQL Server databases have become more and more unscrupulous, such as SQL injection, cross-site scripting attacks and unauthorized user access. All of these intrusions have the potential to bypass front-end security systems and attack database systems. Protecting data from internal and external intrusions is an important task for database management. SQL Server is increasingly used inside and outside various departments. As a database system administrator, you need to have an in-depth understanding of the security control strategies of SQL Server to achieve the goal of managing security. So, how to ensure the security of SQL Server database, we can consider the following two aspects. it training institution

First of all, adopt the existing and relatively mature database audit solution in the industry to realize it

Real-time recording of all user operations on the database system (such as: insertion, deletion, updates, user-defined operations, etc.), and restore SQL operation commands including source IP address, destination IP address, access time, user name, database operation type, database table name, field name, etc., so that accurate database security events can be achieved Full tracking and positioning.

Real-time inspection of insecure database configurations, potential database vulnerabilities, database user weak passwords, database software patch levels, database hidden Trojans, etc.

Carry out comprehensive multi-layer (application layer, middle layer, database layer) access audit, and achieve precise positioning of original visitors of data operations through multi-layer business audit.

Conduct real-time detection of database operation behaviors, pre-set risk control strategies, and conduct feature detection based on real-time monitoring information of database activities. Any attempted attack operations will be detected and carried out. Block or alert; and support alerting through email, SMS, SYSLOG, SNMP, screen, etc.

Secondly, formulate relevant database management processes

Different personnel have different responsibilities for database operations. All personnel’s operations on the database require prior approval. For some very important operations, Second level or above approval is required. When applying for an operation, you need to clarify who is doing it, at what time, for what reason, which database (or table), what kind of operation is being performed, what kind of risks there may be, and the remedial measures to be taken.

The loss of database data and the intrusion of the database by illegal users make database administrators physically and mentally exhausted. Database security issues are simply a nightmare for database administrators. Regarding the security issues of database data. This article puts forward some security strategies around database security issues, hoping to be helpful to database administrators.