Using Screend to Implement IP/TCP Security Policies

Abstract

True network security requires that all hosts attached to the network are themselves made secure, but network administrators often find it helpful to block certain kinds of packets at the routers. The screend program was designed to provide this function for routers based on the ULTRIX(Trademark) operating system. Although screend is a simple program, creating a screend configuration that does not compromise security can be a complex problem, requiring deep understanding of how IP/TCP networks are used and abused. This technical note provides some guidance.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1991
Accession Number
ADA375874

Entities

People

  • Jeffrey Mogul

Tags

Communities of Interest

  • Autonomy
  • Cyber

DTIC Thesaurus Topics

  • Computer Network Security
  • Computer Programming
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  • Electronic Mail
  • Intellectual Property
  • Law
  • Network Protocols
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Fields of Study

  • Computer science

Readers

  • Aerospace Engineering.
  • Government and Public Administration Law.
  • Parallel and Distributed Computing.

Technology Areas

  • Cyber