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Getting Started – Little Snitch - Objective Development

Little Snitch How To Block Adobe Activation

If you are a Mac user who uses Adobe products, you might have encountered the issue of Adobe activation. This is a process that validates your software license by contacting Adobe servers periodically. While this is meant to prevent piracy and ensure compatibility, it can also cause some problems, such as privacy concerns, performance issues, or error messages.

Little Snitch How To Block Adobe Activation

Fortunately, there is a way to block Adobe activation using a third-party application called Little Snitch. This is a host-based application firewall that monitors and controls network connections on your Mac. It allows you to decide which applications can access the Internet and which ones cannot.

In this article, we will explain what Little Snitch and Adobe activation are, why you might want to block Adobe activation, and how to do it step by step. We will also provide some tips and FAQs for using Little Snitch and Adobe products safely and legally.

What is Little Snitch?

Definition and features

Little Snitch is a host-based application firewall for macOS. It can be used to monitor applications, preventing or permitting them to connect to attached networks through advanced rules. It is produced and maintained by the Austrian firm Objective Development Software GmbH.

Unlike a stateful firewall, which is designed primarily to protect a system from external attacks by restricting inbound traffic, Little Snitch is designed to protect privacy by limiting outbound traffic.

Some of the features of Little Snitch are:

  • Alert mode: Whenever an app attempts to connect to a server on the Internet, Little Snitch shows a connection alert, allowing you to decide whether to allow or deny the connection. No data is transmitted without your consent. Your decision will be remembered and applied automatically in the future.

  • Silent mode: If you are new to Little Snitch or overwhelmed by the amount of notifications from applications wanting to connect to the Internet, you can use silent mode. It lets you silence all notifications for a while and make all your decisions later with just a few clicks.

  • Network monitor: This is your window to the world of network connections. It shows you detailed information about all the connections made by your apps, including the domain names, countries, and traffic amounts. You can also filter and group the connections by various criteria.

  • Blocklists: You can use blocklists to prevent your Mac from connecting to malicious or unwanted servers. Little Snitch comes with a built-in rule group that contains a large number of known malware and adware servers. You can also create your own blocklists or subscribe to third-party ones.

Benefits and drawbacks

Using Little Snitch has some benefits and drawbacks that you should be aware of before installing it. Here are some of them:

  • Benefits:

  • It protects your privacy by preventing apps from sending your personal data to unknown or untrusted servers.

  • It gives you full control over your network connections and allows you to customize them according to your preferences and needs.

  • It helps you detect and block malicious or unwanted connections, such as malware, adware, or phishing.

  • It helps you optimize your network performance and bandwidth usage by reducing unnecessary traffic.

  • Drawbacks:

  • It can be complicated and overwhelming for beginners or casual users who are not familiar with network concepts and terminology.

  • It can cause some compatibility issues or conflicts with other apps or services that rely on network connections.

  • It can have a negative impact on your system performance and battery life by consuming CPU and memory resources.

  • It is not free and requires a license fee of $45 for a single user.

What is Adobe activation?

Definition and purpose

Adobe activation is a process that validates software licenses by contacting Adobe servers periodically. It is required for most Adobe products, such as Photoshop, Illustrator, Acrobat, Premiere Pro, and more.

The purpose of activation is to ensure that you have a genuine and legal copy of the software, that it is compatible with your system and other Adobe products, and that it can receive updates and support from Adobe.

Methods and issues

There are different methods of activating Adobe products, depending on the type of license, the product version, and the availability of an Internet connection. Some of the common methods are:

  • Online activation: This is the easiest and most common method. It requires an Internet connection and an Adobe ID. You simply sign in to your Adobe account when you launch the product for the first time, and the product will activate automatically. You can also activate or deactivate a product manually from the Help menu.

  • Offline activation: This is an alternative method for situations where you do not have an Internet connection or access to an Adobe server. It requires a serial number and an activation code. You enter the serial number when you install the product, and then generate an activation code from another computer that has Internet access. You enter the activation code in the product to complete the activation.

  • Deactivation: This is a process of removing the activation from a product or a computer. It allows you to free up a license slot for another computer or product. You can deactivate a product from the Help menu or from your Adobe account online.

Sometimes, you might encounter some issues or errors when activating or deactivating Adobe products. Some of the common issues are:

  • Error codes: These are messages that indicate a specific problem with the activation process, such as invalid serial number, expired license, activation limit reached, server unavailable, etc. Each error code has a corresponding solution that you can find on Adobe's website or support forum.

  • Troubleshooting: These are general steps that you can take to resolve common activation issues, such as checking your Internet connection, updating your product, restarting your computer, disabling firewall or antivirus software, etc.

How to block Adobe activation with Little Snitch?

Step-by-step guide

If you want to block Adobe activation with Little Snitch, you need to install and configure Little Snitch first, and then create rules for blocking Adobe connections. Here is a step-by-step guide on how to do it:

  • Install Little Snitch: You can download Little Snitch from its official website and follow the installation instructions. You will need to restart your Mac after the installation is complete. You will also need to enter your license key or start a free trial if you do not have one.

  • Configure Little Snitch: When you launch Little Snitch for the first time, you will see a welcome screen that gives you an overview of the app and its features. You can choose between two modes: alert mode or silent mode. We recommend choosing alert mode, as it will give you more control and feedback over your network connections. You can also change the mode later from the menu bar icon.

  • Create rules for blocking Adobe connections: This is the most important and tricky part of the process. You need to create rules that tell Little Snitch to deny any connection attempt from Adobe products to Adobe servers. There are different ways to do this, but we will show you one of the simplest and most effective ones. Here are the steps:

  • Open any Adobe product that you want to block, such as Photoshop, Illustrator, or Acrobat.

  • Wait for a few seconds until Little Snitch shows a connection alert. It should look something like this:

  • The connection alert shows you the name of the app, the domain name of the server, and the action that Little Snitch will take. In this case, it shows that Photoshop wants to connect to, and that Little Snitch will allow it by default.

  • To block this connection, click on the Deny button. This will create a rule that denies any connection from Photoshop to

  • However, this is not enough, as Adobe products might try to connect to other servers as well. To block all Adobe connections, you need to modify the rule by clicking on the gear icon next to the Deny button. This will open a rule editor window that looks like this:

  • The rule editor allows you to change various parameters of the rule, such as the app, the server, the port, the protocol, and the duration. To block all Adobe connections, you need to change two parameters: the server and the duration.

  • To change the server, click on the drop-down menu next to and select Any Server. This will make the rule apply to any server that Photoshop tries to connect to.

  • To change the duration, click on the drop-down menu next to Until Quit and select Forever. This will make the rule permanent and not expire when you quit Photoshop.

  • The rule editor should now look like this:

  • Click on OK to save and apply the rule. You have now successfully blocked Photoshop from connecting to any server.

  • Repeat these steps for any other Adobe product that you want to block. You can also use the same rule for multiple apps by selecting them from the drop-down menu next to Photoshop in the rule editor.

After creating the rules for blocking Adobe connections, you need to test and verify that they are working properly. You also need to know how to undo or modify the blocking if needed. Here are some tips on how to do that:

  • Test and verify the blocking: To test and verify that the blocking is working, you can try to activate or update your Adobe products and see if they fail or succeed. You can also check the network monitor in Little Snitch to see if there are any connection attempts from Adobe products to Adobe servers. If the blocking is working, you should see red icons indicating denied connections. If the blocking is not working, you should see green icons indicating allowed connections.

  • Undo or modify the blocking: To undo or modify the blocking, you can use the rule editor in Little Snitch to change or delete the rules that you created. You can access the rule editor from the menu bar icon, the connection alert, or the network monitor. You can also use the rule group editor to enable or disable a group of rules at once. For example, if you want to temporarily allow Adobe connections, you can disable the rule group that contains all the Adobe blocking rules.

By following these steps, you should be able to block Adobe activation with Little Snitch successfully. However, keep in mind that this is not a recommended or supported method by Adobe or Little Snitch. It might cause some unexpected issues or consequences, such as losing access to some features or services, violating the terms of use, or risking legal actions. Therefore, use this method at your own risk and discretion.


In this article, we have explained what Little Snitch and Adobe activation are, why you might want to block Adobe activation, and how to do it step by step. We have also provided some tips and FAQs for using Little Snitch and Adobe products safely and legally.

We hope that this article has been helpful and informative for you. If you have any questions or feedback, please feel free to leave a comment below. Thank you for reading!


Here are some frequently asked questions about Little Snitch and Adobe activation:

  • How many computers can I activate my Adobe apps on?

If you have a subscription plan for Adobe Creative Cloud or Acrobat DC, you can activate your apps on up to two computers at a time. If you have a perpetual license for an older version of Adobe products, such as CS6 or Acrobat XI, you can activate your apps on up to two computers of the same platform (Mac or Windows). However, you can only use one computer at a time.

  • How do I deactivate an Adobe app?

If you want to deactivate an Adobe app from a computer, you can do so from the Help menu of the app or from your Adobe account online. Deactivating an app will free up a license slot for another computer.

  • How do I update an Adobe app?

If you want to update an Adobe app to the latest version, you can do so from the Creative Cloud desktop app or from the Help menu of the app. Updating an app will ensure that it is compatible with your system and other Adobe products, and that it has the latest features and bug fixes.

  • How do I use an Adobe app offline?

If you want to use an Adobe app offline, you need to make sure that it is activated online first. Once activated, you can use the app offline for up to 99 days for subscription plans or 30 days for perpetual licenses. After that period, you need to connect to the Internet again to revalidate your license.

  • How do I deal with connection errors?

If you encounter connection errors when activating or updating an Adobe app, such as error code 213:19 or error code 206:0, you can try some of these solutions:

  • Check your Internet connection and make sure it is stable and secure.

  • Disable any firewall or antivirus software that might be blocking the connection.

  • Restart your computer and try again.

  • Contact Adobe customer support for further assistance.

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