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Installing the Trusted Information Systems Internet Firewall Toolkit

3/23/99


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Table of Contents

Installing the Trusted Information Systems Internet Firewall Toolkit

The TIS Firewall Toolkit

The TIS Firewall Toolkit (cont)

The TIS Firewall Toolkit (cont)

Blocking Traffic Between Networks

Blocking Traffic (cont)

Blocking Traffic (cont)

Blocking Traffic (cont)

Installing the Toolkit

Helpful Hint: Tripwire

Follow Conventions

Reboot Often While Testing

Reboots

Configure TCP/IP

Adaptive Routing

Gated

Static Routing

Typical Firewall Routing

Nasty Routing

Nasty Routing (cont)

Kernel Configuration

Ipforwarding

Ipforwarding (cont)

Ipforwarding (cont)

Server Processes

Server Processes (cont)

Boot Time Servers

Boot Time Servers (cont)

Boot Time Servers (cont)

A Bare Process Table

Netstat Output

Restricting Root Login

Restricting Root Login (cont)

Unpacking the Toolkit Sources

Configure the Sources

Configure the Sources (cont)

Configure the Sources (cont)

Compile the Toolkit

Toolkit Does not Build

Toolkit is Built, Now What?

Implementing Policy

Implementing Policy (cont)

Implementing Policy (cont)

Netperm-table

Netperm-table (cont)

Netperm-table (cont)

Netperm-table (cont)

Logging Errors

Logging Errors (cont)

Proxies

Proxies (cont)

/etc/inetd.conf (for a toolkit firewall)

/etc/inetd.conf (alternate form)

Netacl: a TCP wrapper

Netacl (cont)

Netacl (cont)

Netacl (cont)

TN-Gw: Telnet Proxy

TN-Gw (cont)

Rlogin-Gw: Rlogin Proxy

Rlogin-Gw (cont)

FTP-Gw: FTP Proxy

FTP-Gw (cont)

X-gw: X11 Proxy

X-gw (cont)

Http-gw: Web proxy

Http-gw (cont)

Smap - SMTP queuer

Smap (cont)

Smap (cont)

Smap (cont)

Smap (cont)

Smapd

Smapd (cont)

Smapd (cont)

Testing Smap

Testing Smap (cont)

Authsrv

Authsrv (cont)

Authsrv Initialization

Authsrv Initialization (cont)

Authorizing a User

Authorizing users (cont)

Authorizing users (cont)

Backing up Authsrv

Netperm-table

Netperm-table (cont)

Netperm-table (cont)

Netperm-table (cont)

Netperm-table (cont)

Reporting

Testing Procedures

Testing Procedures (cont)

Maintaining the Software

Installing Patches

Summary

 Author: Marcus Ranum

Email: [email protected]

Home Page: https://www.nfr.net