Backend Development
PHP Tutorial
How to restrict SQL Server to only allow specified machines to connect (transfer)_PHP tutorial
How to restrict SQL Server to only allow specified machines to connect (transfer)_PHP tutorial
Q. How can I restrict access to my SQL Server so that it only allows certain machines to connect?
(v1.0 19.10.1998)
How can I restrict access to my SQL Server so that it only allows certain machines to connect?
A. SQL Server has no built-in tools/facilities to do this. It also does not have the facility to run a stored-procedure on connection that could be written/used to do this. Therefore you have the following choices : -
SQL Server does not have such a function, nor does it provide the function of executing a specific process when connecting. Here are several implementation methods
1. Put the SQL Server behind a firewall and use that to restrict access. This is the most secure and functional way to do what you want.
Using a firewall, it provides security and the tools you want to use.
2. Write your own ODS Gateway and point the clients at that instead of the SQL Server - the ODS Gateway will then do the checking. However, there is nothing stopping clients figuring out the correct SQL client-config entries to point straight at the SQL Server. There are examples of ODS code in the SQL Programmers Toolkit - available for free download from the MS website.
Write your own ODS gateway instead of SQL Server client - check in ODS Gateway. However, this does not stop normal client connections to SQL Server. There is an example of this in the SQL Programmers Toolkit, which can be downloaded for free from the Microsoft site.
3. Write a constantly running/scheduled stored-procedure that checks the relevant column in sysprocesses (net_address), and then issues a KILL command for any processes that should not be running. Note that this only works for MAC addresses. This way allows people to connect and possibly make changes before they are spotted and killed.
Write a stored procedure to check the corresponding column (net_address) in sysprocesses
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1669
14
1428
52
1329
25
1273
29
1256
24
How to use sql if statement
Apr 09, 2025 pm 06:12 PM
SQL IF statements are used to conditionally execute SQL statements, with the syntax as: IF (condition) THEN {statement} ELSE {statement} END IF;. The condition can be any valid SQL expression, and if the condition is true, execute the THEN clause; if the condition is false, execute the ELSE clause. IF statements can be nested, allowing for more complex conditional checks.
How to configure zend for apache
Apr 13, 2025 pm 12:57 PM
How to configure Zend in Apache? The steps to configure Zend Framework in an Apache Web Server are as follows: Install Zend Framework and extract it into the Web Server directory. Create a .htaccess file. Create the Zend application directory and add the index.php file. Configure the Zend application (application.ini). Restart the Apache Web server.
Unable to log in to mysql as root
Apr 08, 2025 pm 04:54 PM
The main reasons why you cannot log in to MySQL as root are permission problems, configuration file errors, password inconsistent, socket file problems, or firewall interception. The solution includes: check whether the bind-address parameter in the configuration file is configured correctly. Check whether the root user permissions have been modified or deleted and reset. Verify that the password is accurate, including case and special characters. Check socket file permission settings and paths. Check that the firewall blocks connections to the MySQL server.
How to monitor Nginx SSL performance on Debian
Apr 12, 2025 pm 10:18 PM
This article describes how to effectively monitor the SSL performance of Nginx servers on Debian systems. We will use NginxExporter to export Nginx status data to Prometheus and then visually display it through Grafana. Step 1: Configuring Nginx First, we need to enable the stub_status module in the Nginx configuration file to obtain the status information of Nginx. Add the following snippet in your Nginx configuration file (usually located in /etc/nginx/nginx.conf or its include file): location/nginx_status{stub_status
Summary of phpmyadmin vulnerabilities
Apr 10, 2025 pm 10:24 PM
The key to PHPMyAdmin security defense strategy is: 1. Use the latest version of PHPMyAdmin and regularly update PHP and MySQL; 2. Strictly control access rights, use .htaccess or web server access control; 3. Enable strong password and two-factor authentication; 4. Back up the database regularly; 5. Carefully check the configuration files to avoid exposing sensitive information; 6. Use Web Application Firewall (WAF); 7. Carry out security audits. These measures can effectively reduce the security risks caused by PHPMyAdmin due to improper configuration, over-old version or environmental security risks, and ensure the security of the database.
How to identify malicious access in Debian Apache logs
Apr 13, 2025 am 07:30 AM
Effective monitoring and defense against malicious website access is crucial to the Apache server on the Debian system. Apache access logs are the key source of information to identify such threats. This article will guide you on how to analyze logs and take defensive measures. The Apache access log that identifies malicious access behaviors Debian systems is usually located in /var/log/apache2/access.log. You can analyze the logs in a variety of ways: Log file location confirmation: First, please confirm the exact location of your Apache access log, which may vary slightly depending on the system configuration. Command line tool analysis: Use grep command to search for specific patterns, such as grep "404"
Using Dicr/Yii2-Google to integrate Google API in YII2
Apr 18, 2025 am 11:54 AM
VprocesserazrabotkiveB-enclosed, Мнепришлостольностьсясзадачейтерациигооглапидляпапакробоглесхетсigootrive. LEAVALLYSUMBALLANCEFRIABLANCEFAUMDOPTOMATIFICATION, ČtookazaLovnetakProsto, Kakaožidal.Posenesko
What is apache server? What is apache server for?
Apr 13, 2025 am 11:57 AM
Apache server is a powerful web server software that acts as a bridge between browsers and website servers. 1. It handles HTTP requests and returns web page content based on requests; 2. Modular design allows extended functions, such as support for SSL encryption and dynamic web pages; 3. Configuration files (such as virtual host configurations) need to be carefully set to avoid security vulnerabilities, and optimize performance parameters, such as thread count and timeout time, in order to build high-performance and secure web applications.
