The book of PF : a no-nonsense guide to the OpenBSD firewall / by Peter N.M. Hansteen.

Format:

Book

Author/Creator:

Hansteen, Peter N. M.

Language:

English

Subjects (All):

OpenBSD (Electronic resource).

TCP/IP (Computer network protocol).

Firewalls (Computer security).

Physical Description:

1 online resource (220 p.)

Edition:

2nd ed.

Other Title:

Book of packet filter

Place of Publication:

San Francisco : No Starch Press, c2011.

Language Note:

English

System Details:

text file

Summary:

A solid understanding of OpenBSD's PF subsystem is a necessity for any network administrator working in a BSD environment. PF is the heart of the OpenBSD firewall but there are few quality books and resources for learning PF, which is often a difficult tool to master. This second edition of The Book of PF is an up-to-date, no-nonsense guide to harnessing the power of PF. Author Peter Hansteen covers NAT (network address translation) and redirection, wireless networking, spam fighting, failover provisioning, logging, and more. New additions include coverage of CARP load balancing, and expanded

Contents:

Foreword; Acknowledgments; Introduction; This Is Not a HOWTO; What This Book Covers; 1: Building the Network You Need; Your Network: High Performance, Low Maintenance, and Secure; Where the Packet Filter Fits In; The Rise of PF; If You Came from Elsewhere; Pointers for Linux Users; Frequently Answered Questions About PF; A Little Encouragement: A PF Haiku; 2: PF Configuration Basics; The First Step: Enabling PF; Setting Up PF on OpenBSD; Setting Up PF on FreeBSD; Setting Up PF on NetBSD; A Simple PF Rule Set: A Single, Stand-Alone Machine; A Minimal Rule Set; Testing the Rule Set

Slightly Stricter: Using Lists and Macros for ReadabilityA Stricter Baseline Rule Set; Reloading the Rule Set and Looking for Errors; Checking Your Rules; Testing the Changed Rule Set; Displaying Information About Your System; Looking Ahead; 3: Into the Real World; A Simple Gateway; Keep It Simple: Avoid the Pitfalls of in, out, and on; Network Address Translation vs. IPv6; Final Preparations: Defining Your Local Network; Setting Up a Gateway; Testing Your Rule Set; That Sad Old FTP Thing; If We Must: ftp-proxy with Redirection; Making Your Network Troubleshooting Friendly

Do We Let It All Through?The Easy Way Out: The Buck Stops Here; Letting ping Through; Helping traceroute; Path MTU Discovery; Tables Make Your Life Easier; 4: Wireless Networks Made Easy; A Little IEEE 802.11 Background; MAC Address Filtering; WEP; WPA; The Right Hardware for the Task; Setting Up a Simple Wireless Network; An OpenBSD WPA Access Point; A FreeBSD WPA Access Point; The Access Point's PF Rule Set; Access Points with Three or More Interfaces; Handling IPSec, VPN Solutions; The Client Side; Guarding Your Wireless Network with authpf; A Basic Authenticating Gateway

Wide Open but Actually Shut5: Bigger or Trickier Networks; A Web Server and Mail Server on the Inside- Routable Addresses; A Degree of Separation: Introducing the DMZ; Sharing the Load: Redirecting to a Pool of Addresses; Getting Load Balancing Right with relayd; A Web Server and Mail Server on the Inside-the NAT Version; DMZ with NAT; Redirection for Load Balancing; Back to the Single NATed Network; Filtering on Interface Groups; The Power of Tags; The Bridging Firewall; Basic Bridge Setup on OpenBSD; Basic Bridge Setup on FreeBSD; Basic Bridge Setup on NetBSD; The Bridge Rule Set

Handling Nonroutable Addresses from Elsewhere6: Turning the Tables for Proactive Defense; Turning Away the Brutes; SSH Brute-Force Attacks; Setting Up an Adaptive Firewall; Tidying Your Tables with pfctl; Giving Spammers a Hard Time with spamd; Network-Level Behavior Analysis and Blacklisting; Greylisting: My Admin Told Me Not to Talk to Strangers; Tracking Your Real Mail Connections: spamlogd; Greytrapping; Managing Lists with spamdb; Detecting Out-of-Order MX Use; Handling Sites That Do Not Play Well with Greylisting; Spam-Fighting Tips; 7: Queues, Shaping, and Redundancy

Directing Traffic with ALTQ

Notes:

Description based upon print version of record.

Includes bibliographical references (p. [167]-172) and index.

Description based on publisher supplied metadata and other sources.

ISBN:

9781593273514

1593273517

OCLC:

830164478