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overview    

An Illustrated Guide to IPsec
IPsec is a suite of protocols for securing network connections, but the details and many variations quickly become overwhelming. This is particularly the case when trying to interoperate between disparate systems, causing more than one engineer to just mindlessly turn the knobs when attempting to bring up a new connection. Table of Contents So many flavors... The IP Datagram AH: Authentication only ESP: Encapsulating Security...
preview: http://www.unixwiz.net  

overview    

Customizing IPSec
Over the past several months, I’ve written a lot about how using the IPSec protocol can increase your network’s security by encrypting data as it flows across the network. However, I’ve always thought that nothing can be considered to be truly secure if it’s configured by using a text book model. After all, the hackers read the books too, and know all of the standard configuration methods. Therefore, if you want to implement good security,...
preview: http://www.brienposey.com  

overview    

IPSEC @ Wikipedia
Internet Protocol Security (IPsec) is a suite of protocols for securing Internet Protocol (IP) communications by authenticating and/or encrypting each IP packet in a data stream. IPsec also includes protocols for cryptographic key establishment. The TCP/IP model (RFC 1122) Application Layer BGP · DHCP · DNS · FTP · Gopher · GTP · HTTP · IMAP · IRC · NNTP · NTP · POP · RIP · RPC · RTCP · RTP · RTSP · SDP · SIP · SMTP · SNMP · SOAP ·...
preview: http://en.wikipedia.org  

overview    

IPSEC Protocol Overview
IPSEC is a framework for security that operates at the Network Layer by extending the IP packet header (using additional protocol numbers, not options). This gives it the ability to encrypt any higher layer protocol, including arbitrary TCP and UDP sessions, so it offers the greatest flexibility of all the existing TCP/IP cryptosystems.
preview: http://www.freesoft.org  

overview    

The Internet Protocol Security (IPSec) Standard: Clearing up the Confusion
IPSec (Internet Protocol Security Standard) is a framework of open standards for ensuring secure private communications over public networks like the Internet. IPSec is a key component of this standards-based, flexible solution for deploying a network-wide security policy.
preview: http://www.adimpleo.com   date: 5/24/2001

tutorial    

Step-by-Step Guide to Internet Protocol Security (IPSec)
This guide focuses on the fastest way to use IPSec transport mode to secure application traffic between a client and a server. It demonstrates how to enable security using IPSec default policies between two Windows 2000-based systems that belong to a Windows 2000 domain. Once the two computers have joined the domain, you should complete the first part of the walkthrough, which demonstrates default policies in 30 minutes or less.
preview: http://www.microsoft.com   date: 2/17/2000

tutorial    

The official IPsec Howto for Linux
This HowTo will cover the basic and advanced steps setting up a VPN using IPsec based on the Linux Kernels 2.4 and 2.5/2.6. Since there is a vast amount of documentation available for the Linux Kernel 2.4, this HowTo will concentrate on the new IPsec Features in the development Kernel first. A later revision will include Linux Kernel 2.4.
preview: http://www.ipsec-howto.org   date: 1/28/2004