S - Definitions

  • S

    symmetric communications

    Compare asymmetric communications.

  • SYN scanning

    SYN scanning is a tactic that a malicious hacker (or cracker) can use to determine the state of a communications port without establishing a full connection.

  • Synchronous Optical Network (SONET)

    SONET is the American National Standards Institute standard for synchronous data transmission on optical media.

  • system administrator (sysadmin)

    In information technology (IT), a system administrator (sysadmin) is a person who supports a multi-user computing environment and ensures continuous, optimal performance of IT services and support systems.

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