It is possible to block users from posting or commenting on Facebook while still allowing them to browse articles using a web filtering solution such as Sangfor. However, there are some limitations and challenges to this approach.

First, Facebook uses HTTPS encryption to protect user data, so you need to decrypt the traffic in order to apply web filtering policies. However, Facebook has implemented measures to prevent decryption of their traffic, including certificate pinning and HSTS. This means that even with a self-signed certificate installed on your Sangfor device, it may not be possible to decrypt all Facebook traffic.

Second, Facebook uses a variety of protocols for different features, including HTTP, HTTPS, and QUIC. Blocking one protocol may not be sufficient to prevent users from posting or commenting. In addition, blocking QUIC may have unintended consequences, as it is becoming increasingly popular and is used by other web services besides Facebook.

To effectively block posting and commenting on Facebook, you may need to use a combination of web filtering policies and user education. For example, you could create a web filtering policy that blocks certain URLs or keywords associated with posting and commenting, and combine it with user education to inform users of the policy and the reasons behind it.

Ultimately, the best approach will depend on your specific network environment and security requirements. It may be helpful to consult with a security expert or Sangfor support to determine the most effective strategy for your organization.

It is possible to block users from posting or commenting on Facebook while still allowing them to browse articles using a web filtering solution such as Sangfor. However, there are some limitations and challenges to this approach.

First, Facebook uses HTTPS encryption to protect user data, so you need to decrypt the traffic in order to apply web filtering policies. However, Facebook has implemented measures to prevent decryption of their traffic, including certificate pinning and HSTS. This means that even with a self-signed certificate installed on your Sangfor device, it may not be possible to decrypt all Facebook traffic.

Second, Facebook uses a variety of protocols for different features, including HTTP, HTTPS, and QUIC. Blocking one protocol may not be sufficient to prevent users from posting or commenting. In addition, blocking QUIC may have unintended consequences, as it is becoming increasingly popular and is used by other web services besides Facebook.

To effectively block posting and commenting on Facebook, you may need to use a combination of web filtering policies and user education. For example, you could create a web filtering policy that blocks certain URLs or keywords associated with posting and commenting, and combine it with user education to inform users of the policy and the reasons behind it.

Ultimately, the best approach will depend on your specific network environment and security requirements. It may be helpful to consult with a security expert or Sangfor support to determine the most effective strategy for your organization.