They also allow applications to use dynamic ports like TCP and UDP to communicate with known ports used by server applications. Here’s a step-by-step guide to how ALGs work: First, a user must contact an application gateway using a TCP or IP application. Once the user makes contact with the gateway, it will ask about the remote host they are trying to establish a connection with. The ALG verifies the user’s authenticity.The gateway will also request login credentials, such as a username and password. The gateway will then authenticate-or deny-the user based on their login credentials. Once the user is authenticated, the gateway will access the remote host on their behalf to deliver the data packets required for the application.ĭue to their enhanced security, ALGs are becoming increasingly popular with organizations of all types-especially as the cybersecurity landscape becomes more threatening. Here are some of the advantages offered by ALGs: 1. Perhaps the biggest advantage of using an ALG is the degree of protection it provides for corporate networks.
ALGs deliver one of the highest-level secure network systems for communications, allowing companies to maintain their cybersecurity posture. The tool uses deep packet inspection (DPI) to detect and block potential attacks at every layer of the OSI model. Organizations can gain more insight into who or what is trying to access their server with ALGs’ simplified traffic logging.
Traffic server records store information about every transaction on the server, so IT teams can review the granular details of potential access attempts. This fine-grained control can help even the largest organizations identify threats.
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