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ACL4SSR - Customize ACL4SSR Rules For Specific Use Cases


ACL4SSR is an open-source project that provides a set of access control rules for ShadowsocksR (SSR), a popular secure proxy protocol. The main purpose of ACL4SSR is to allow users to access blocked websites and services by creating rules that whitelist or blacklist specific domains or IP addresses.

ACL4SSR is particularly useful for users in countries with strict internet censorship policies, such as China, Iran, and Turkey. By using ACL4SSR, users can bypass the Great Firewall of China and other similar restrictions, giving them access to the full range of the internet.

Features Of ACL4SSR

ACL4SSR provides several key features that make it a powerful tool for internet users:

Whitelisting And Blacklisting

COPYRIGHT_BP: Published on https://bingepost.com/acl4ssr/ by Kelvin Farr on 2023-05-12T06:06:24.474Z

ACL4SSR allows users to create rules that either whitelist or blacklist specific domains or IP addresses. Whitelisting allows only specified domains or IP addresses to be accessed through the proxy, while blacklisting blocks specific domains or IP addresses. This feature is particularly useful for users who want to access certain websites or services, while still maintaining a high level of security.

Regular Expression Matching

ACL4SSR supports regular expression matching, allowing users to create more complex rules. Regular expressions allow users to specify a pattern of characters that will match multiple domains or IP addresses. This feature is particularly useful for users who want to block or allow multiple domains or IP addresses with similar patterns.

Multiple Rule Sets

ACL4SSR supports multiple rule sets, allowing users to create different sets of rules for different purposes. This feature is particularly useful for users who want to switch between different rule sets depending on their needs.

Simple Configuration

ACL4SSR has a simple configuration process that can be completed in just a few steps. The user only needs to edit the configuration file to add or remove rules.


To use ACL4SSR, the user must have a ShadowsocksR client installed on their device. The following steps describe how to install and configure ACL4SSR:

  • Download the ACL4SSR rules file from the official GitHub repository: https://github.com/ACL4SSR/ACL4SSR/tree/master/Clash
  • Install a ShadowsocksR client on your device. There are many clients available for different platforms, including Windows, macOS, Android, and iOS.
  • Open the configuration file for your ShadowsocksR client and add the ACL4SSR rules file to the "rules" section.
  • Save the configuration file and restart your ShadowsocksR client.

Once the configuration is complete, the user can connect to the internet using the ShadowsocksR client and access any website or service that is not blocked by the ACL4SSR rules.

Chinese ACL4SSR Post
Chinese ACL4SSR Post

Customize ACL4SSR Rules For Specific Use Cases

One of the key advantages of ACL4SSR is its flexibility in creating customized rules to fit specific use cases. Here are some examples of how to customize ACL4SSR rules for specific purposes:

  • Block all traffic to a specific domain or IP address - Use a blacklist rule to block all traffic to the domain or IP address in question.
  • Whitelist specific domains or IP addresses - Use a whitelist rule to allow traffic only to specific domains or IP addresses.
  • Block traffic based on URL patterns - Use regular expressions to match specific patterns in URLs and block traffic to any URLs that match.
  • Prioritize certain types of traffic - Use a rule set to prioritize certain types of traffic over others, such as streaming video or file downloads.

To customize ACL4SSR rules, you will need to edit the rules file using a text editor. Make sure to follow the correct syntax for each rule to ensure that it works as intended.

Advantages And Limitations Of ACL4SSR

ACL4SSR provides several advantages to users who want to access restricted content:

  • ACL4SSR is an open-source project, which means that anyone can contribute to the project and improve its functionality.
  • ACL4SSR is a free tool that does not require users to pay for access.
  • ACL4SSR is easy to use and configure, making it accessible to users with minimal technical knowledge.

However, there are also some limitations to using ACL4SSR:

  • ACL4SSR may not be effective against advanced censorship techniques, such as deep packet inspection.
  • ACL4SSR may slow down internet speeds due to the additional processing required to apply access control rules.
  • ACL4SSR may not be completely secure, as it relies on a third-party proxy server that may log user data.

Despite these limitations, ACL4SSR remains a valuable tool for internet users who want to access restricted content.

How To Optimize ACL4SSR For Faster Internet Speeds?

One common issue that users encounter when using ACL4SSR is slower internet speeds. However, there are several ways to optimize ACL4SSR for faster speeds:

Choose The Right Server

The location of the server you connect to can have a big impact on internet speeds. Choose a server that is geographically close to your location to minimize latency and maximize speed.

Adjust Encryption Settings

Encryption is an important feature of ACL4SSR, but it can also slow down internet speeds. Consider adjusting the encryption settings to find a balance between security and speed. Try using lower levels of encryption or disabling encryption altogether to see if this improves speed.

Use A Faster Cipher

The cipher used by ACL4SSR can also impact internet speeds. Use a faster cipher, such as chacha20, to improve speed.

Adjust The MTU Size

The maximum transmission unit (MTU) size determines the maximum size of data packets that can be transmitted. Try adjusting the MTU size to find the optimal size for your internet connection.

Use TCP Fast Open

TCP Fast Open is a feature that allows clients to start sending data to the server as soon as they connect, rather than waiting for a full handshake. Enabling TCP Fast Open can improve speed, especially for short-lived connections.

By following these tips, you can optimize ACL4SSR for faster internet speeds and a better overall user experience.

Alternatives To ACL4SSR

While ACL4SSR is a powerful tool, there are also alternative solutions available that offer similar functionality. Some popular alternatives include:


Virtual private networks (VPNs) are a popular alternative to ShadowsocksR and ACL4SSR. VPNs encrypt all internet traffic and redirect it through a remote server, making it appear as if the user is located in a different country. This allows users to access restricted content and bypass censorship, similar to ACL4SSR.


The Tor network is another alternative to ACL4SSR. Tor is a free and open-source network that routes internet traffic through a series of relays, making it difficult to trace the user's location or online activities. Tor can be used to access restricted content and bypass censorship, but it may be slower than other solutions.

Proxy Servers

Proxy servers are another alternative to ACL4SSR. Proxy servers act as intermediaries between the user and the internet, allowing users to access content that is blocked in their region. However, proxy servers may not provide the same level of security and privacy as ShadowsocksR or VPNs.

The Community And Support Behind ACL4SSR's Development

ACL4SSR is an open-source project, meaning that it is developed and maintained by a community of volunteers. The project is hosted on GitHub, where users can view the source code, submit issues, and contribute code changes.

The ACL4SSR community is a global network of users and developers who are passionate about internet freedom and censorship resistance. They provide support and advice to new users, share information about the latest censorship techniques, and work together to improve the functionality and usability of ACL4SSR.

The community also maintains a wiki with documentation, tutorials, and troubleshooting guides to help users get the most out of ACL4SSR. They also provide regular updates to the rules file to ensure that ACL4SSR remains effective against the latest censorship techniques.

In addition to the ACL4SSR community, there are also several online forums and communities dedicated to discussing internet freedom and censorship resistance. These communities provide a platform for users to share their experiences, ask for advice, and connect with like-minded individuals from around the world.

People Also Ask

It depends on the specific laws of your country. In some countries, the use of ACL4SSR may be illegal or restricted.

Is ACL4SSR More Secure Than Other Proxy Protocols?

It depends on the specific implementation and configuration. ACL4SSR can be a secure option, but it relies on the security of the underlying ShadowsocksR protocol.

How Can I Monitor ACL4SSR Traffic To Detect Suspicious Activity?

You can use network monitoring tools like Wireshark to monitor traffic to and from the ShadowsocksR server.

Can I Use ACL4SSR To Access Streaming Content From Other Countries?

Yes, as long as the streaming service is not blocked by the ACL4SSR rules.

Is ACL4SSR Difficult To Set Up And Manage?

It can be challenging for users with minimal technical knowledge, but there are many resources available online to guide you through the process.


ACL4SSR is a powerful tool that allows users to bypass censorship and access restricted content. With its whitelisting and blacklisting features, regular expression matching, and multiple rule sets, ACL4SSR provides a customizable solution for internet users in countries with strict internet censorship policies.

While there are limitations to using ACL4SSR, it remains a valuable tool for internet users who want to access restricted content. As internet censorship continues to be a problem around the world, ACL4SSR and other similar tools will likely remain popular solutions for users seeking greater online freedom.

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About The Authors

Kelvin Farr

Kelvin Farr - Although I don't believe Bitcoin to be the future for sure, I do believe it has the potential to be. I only want to comprehend the nature of cryptocurrencies and how they operate rather than really owning any.

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