Securing
SQL Server Database is a challenging task as there are number of external
and internal risks or parameters affecting the Server and its databases. In
this section, we have discussed about all the concepts and the precautions that
can be taken to prevent databases and the accumulated components such as
tables, stored procedures, triggers, etc. To protect the SQL DB, it is
mandatory to provide security to the overall SQL infrastructure. Therefore,
this approach is divided into given segments;
- Platform Security
- Application Security
- Database Security
Let’s
discuss about these parameters in detail, so as to get better understanding on
all the perspectives that can help safeguard crucial information existing under
SQL environment.
Platform Security:
Platform
security of the database refers to securing the hardware components from
outside risks. It can be done by proposing access limitations for SQL Server to
the few and authorizing users. It is
recommended to store the backup media at some offsite location with secure and
minimal access. This can be done by configuring least users with access authorities
and controlling unauthorized access on network devices and components.
The
integral components such as Operating System and associated files can be
protected by referring to the below mentioned measures;
Method
1:
Update
Notifications:
The internal security of the SQL Server
Operating System can be ensured by installing genuine applications. After
installing any new application or software in SQL Server, do always remember to
update the associated notifications and security enhancements received from
Microsoft.
Note:
This can alternatively be done while installing SQL Server 2014 by checking the
associated checkbox in the set-up window.
Method
2:
Keep Firewalls On: By keeping the Firewalls On, the security measures can be increased to ensure extended security. Firewalls are considered the security system that controls the network traffic by applying defined set of rules. It serves as the barrier between secure network (such as home network) and the external network such as internet (that might not be secure or fully trusted).
Application
Security:
Since
SQL Server relies upon systems’ files in order to store data components so it
is important to limit the access to these files for assuring more data
security. This can be done by implementing the following given methods;
Method
1:
Access
Authority: By assigning access restrictions to the
distinct users existing on database, the files can be prevented from any
unauthorized access. By doing so, the files can only be accessed by the users
who are marked eligible to access them by the Database Administrator.
Method
2:
Authentication
Check: Another
powerful method to protect the integrity and security of data is via assigning
strong passwords to the important files. This method can be implemented in a
powerful manner when used with the combination of access authorities.
Database
Security
Now
the most powerful aspects comes i.e. the SQL Database and the incorporated
objects such as data stored in tables, stored procedures, indexes, triggers and
all other components. Following concepts can be utilized for securing SQL
Server and the data components from all sorts of internal and external factors.
Method
1:
Regular
Backup:
It is recommended and even serves as a best practice to backup SQL database and
system log files on regular basis so as to avoid any data loss. Backup approach
provides full security over data as if entire database or any of its components
becomes inaccessible due to corruption or any other reason, the lost data can
be gained back via backup restoration.
Note:
Sometimes user forget to take regular backup or scheduled backup.In that case, if any database corruption occur or any accidental deletion of data occur, the chances of data loss becomes quite high. So in that case, you can use SQL Database Recovery Software for repairing and recovering of your SQL Server Database.
Method
2:
Data
Encryption: The most powerful way to safeguard data and
all encapsulated elements is via encrypting the files or the segments of data. However,
this approach will not help in controlling the access over database but in case
if the crucial information is leaked out via any unknown resources; it will not
put any adverse effect on the data or the concerned person (to whom the particular
information belongs to).
Conclusion:
Since
the information existing into SQL databases is crucial as it includes data
associated to many users or individuals. It is important to protect it from unauthorized
access and illegal interruptions so as to avoid the occurrence of adverse
circumstances. Using either or all of the above stated tips to secure
SQL Server Database, the entire infrastructure, the application or the encapsulated
data can be protected from distinct kinds of risks factors.
The next option is to select the version of SQL Server. Whether choose Auto Detect or select the version of MDF File manually.
