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... This document provides guidance to system and network administrators
on how to address security issues within the Internet community. It
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... An Availability statement which sets users' expectations for the
availability of resources. It should address redundancy and
recovery issues, as well as specify operating hours and
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The plan should also address how incident will be handled. Chapter 5
provides an in-depth discussion of this topic, but it is important
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... never been connected to the Internet may have strong, well defined,
internal policies but fail to adequately address an external
connection policy.
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... Internet uses the Domain Name System (DNS) to perform address
resolution for host and network names. The Network Information
Service ...
... subject to the same risks as a DNS server. Name-to-address
resolution is critical to the secure operation of any network. An
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... packets, the following criteria can be important when implementing a
filtering policy: source and destination IP address, source and
destination TCP port ...
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Several authentication techniques have been developed that address
this problem. Among these techniques are challenge-response
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... While there is no definitive answer to this dilemma, a password
policy should directly address the issue and provide guidelines
for how often a user should change the password. Certainly, an
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... network. This increases the risk of attacks via techniques such as
IP address spoofing, packet sniffing, etc. Users and site management
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... ongoing. It is strongly recommended that all relevant telephone
numbers (also electronic mail addresses and fax numbers) be included
in the site security policy ...
... the anonymity of the original source. But, be aware that, in many
cases, the analysis of logs and information at other sites will
reveal addresses of your site.
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... Accounting can provide much helpful information in an
analysis of an incident and subsequent prosecution. Your ability to
address all aspects of a specific incident strongly depends on the
success of this analysis.
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... procedures on a regular basis. There are a number of steps you can
take to help you keep up with the changes around you so that you can
initiate corresponding actions to address those changes. The
following is a starter set and you may add others as appropriate for
your site.
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