A security team informs the Linux administrator that a specific sever is acting as a n pen relay. To which of the following is the security team referring?

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D. The server has an email service configured to allow outside sources to send email to other An "open relay" specifically describes an SMTP (email) server that is configured to accept and forward email from any sender to any recipient, including those outside its own domain, without proper authentication. This configuration is widely abused by spammers to send unsolicited email.

Answer

A. The server it running the SSH service and is open to the internet allowing outside sources to An SSH service open to the internet refers to an SSH server being publicly accessible, which is a different security concern than an open relay. B: An unmanaged router open to the internet describes a network device misconfiguration, not an email relay. C: A web proxy allowing outside unauthenticated sources describes a web proxy server misconfiguration, which is distinct from an email open relay.

Answer

B. The server is acting as an unmanaged router, open to the internal and is allowing outside

Answer

C. The server is acting as a web proxy and allowing outside unauthenticated sources to connect

A security team informs the Linux administrator that a specific sever is acting as a n pen relay. To which of the following is the security team referring?

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