In a small office/home office (SOHO) environment, the network administrator is configuring the office wireless router to secure the network against external threats. Which of the following actions would BEST increase the security of the network?
Changing the router's service set identifier (SSID)
Setting up port forwarding/mapping to unspecified services
Disabling Universal Plug and Play (UPnP) on a wireless router can significantly enhance the security of a network. UPnP can be exploited by malware to open ports without a user's knowledge, potentially allowing external threats to penetrate the network. Therefore, disabling it reduces the risks of such vulnerabilities. Changing the SSID does not inherently secure the network—this action just changes the network name. While disabling SSID broadcast may somewhat obscure the network from casual discovery, it is not a robust security measure as SSID can be discovered by more determined attackers using simple tools. Port forwarding/mapping is typically used to allow external devices to access services within the private network and is not a method to enhance network security.
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What is UPnP and how does it pose a security risk?
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What is the importance of SSID in wireless networking?