Reference no: EM133236678

Examine the following article to determine if it is suitable to change the firewall rules when the firewall prevents specific applications from working correctly over the internet.

Planning and obtaining requirements are the two most essential activities for a successful transition. I would begin by determining which websites and apps are required for the firm to run. The next step would be to investigate and validate the connection needs of these applications by confirming the needed ports, protocols, and source and destination addresses. For example, if the payroll application is connected to a server in another country using TCP port 443 (SSL), I would be aware that this traffic must be authorized by the access control list (ACL). Wireshark may be used to collect current traffic to validate the examined data. However, I would not depend only on it since you would see any communication, malicious or not, regardless of its importance to the objective. 

Before using the specified firewall settings in production, you should test them in a test environment. Install the necessary programs on a test machine inside the firewall to ensure that the newly configured ACL is effective. Preparation, identification, setup, and testing are required to guarantee that critical applications are configured correctly to connect through the internet.