Unfortunately, open ports provide a pathway for attackers to exploit vulnerabilities in your system. It is often difficult to assess and mitigate risks associated with an open port at any given time. A firewall configuration may have been automatically modified by an application, leaving some ports open without your knowledge. An administrator at your company may have opened a port to satisfy a request and forgotten all about it. Without ports, communication between hosts over the internet is not possible.Īt times, the problem with ports is that those that are not supposed to be open are inadvertently left exposed. Internet-facing services and applications essentially listen on ports for a connection from the outside to do their jobs. Ports allow communication between devices. Read this article for a better understanding of why you should close risky, unused ports. However, certain ports may pose security risks to your network. Open ports enable services and applications to perform their functions properly.
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