Sentry Firewall CD HOWTO

Short Description
1.3 I’m a Linux newbie, will the Sentry Firewall CD be a good choice for me? ….. This is the long?overdue Sentry Firewall CDROM howto. …

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Content
Sentry Firewall CD HOWTOTable of Contents
Sentry Firewall CD HOWTO……………………………………………………………………………………………………………1
Stephen A. Zarkos, Obsid@Sentry.net……………………………………………………………………………………….1
1. Introduction………………………………………………………………………………………………………………………..1
2. How the CD Works (Overview)…………………………………………………………………………………………….1
3. Obtaining the CDROM…………………………………………………………………………………………………………1
4. Using the Sentry Firewall CDROM………………………………………………………………………………………..1
5. Overview of Available Configuration Directives……………………………………………………………………..1
6. Setting Up a Firewall…………………………………………………………………………………………………………..2
7. Troubleshooting………………………………………………………………………………………………………………….2
8. Building a Custom Sentry CD……………………………………………………………………………………………….2
9. More About the Sentry Firewall Project………………………………………………………………………………….2
1. Introduction………………………………………………………………………………………………………………………..2
1.1 What is the Sentry Firewall CD?………………………………………………………………………………………….3
1.2 Why would I use a CD.based firewall or server?…………………………………………………………………..3
1.3 I’m a Linux newbie, will the Sentry Firewall CD be a good choice for me?……………………………….3
1.4 What’s with all these branches(SENTRYCD/SENTRYCD.RH/SENTRYCD.xxx)? What’s the
difference between the branches?……………………………………………………………………………………………..3
1.5 Minimum Requirements…………………………………………………………………………………………………….4
1.6 Copyrights and Disclaimer………………………………………………………………………………………………….4
2. How the CD Works (Overview)…………………………………………………………………………………………….4
2.1 The Boot Process………………………………………………………………………………………………………………5
2.2 ISOLINUX……………………………………………………………………………………………………………………….5
2.3 The CD Configuration Scripts……………………………………………………………………………………………..5
3. Obtaining the CDROM…………………………………………………………………………………………………………6
3.1 Downloading…………………………………………………………………………………………………………………….6
3.2 Purchasing………………………………………………………………………………………………………………………..6
3.3 Burning the CDROM………………………………………………………………………………………………………….6
4. Using the Sentry Firewall CDROM………………………………………………………………………………………..7
4.1 Introduction………………………………………………………………………………………………………………………7
4.2 The sentry.conf file……………………………………………………………………………………………………………7…