Introduction to NetStumbler
For a Swiss Army knife of wireless network diagnostics, "NetStumbler" is saddled with a somewhat unfortunate name. Although it implies a sort of blind luck, NetStumbler is actually most useful for pinpointing details of a wireless network, helping you configure, secure, optimize and discover.
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Introduction to IPAudit
Packet analysis tools like IPAudit help fill the gaps left by an IDS system or an IPS system. How does it do this? An IDS looks for certain signatures or behavior and can alert and log. An IPS looks for the same anomalies but can prevent the attack. Both of these technologies can greatly increase the security of your network -- however, what happens if they miss an attack? How would you know? Even if the IDS sensor matches a packet, a machine can still become compromised. When this happens how do you tell what happened on the network after the compromise? IPAudit can help fill the gaps, in addition to providing you with useful information about your network beyond specific security events.
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ACK Tunneling Trojans
This paper describes another concept that I call ACK Tunneling. ACK Tunneling works through firewalls that don't apply their rule sets on TCP ACK segments. Ordinary packet filters belong to this class of firewalls while stateful firewalls do not.
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Using Traceroute
Traceroute is a very handy tool written by Van Jacobson that can show you the route that packets take from one host to another. It can also be used sometimes to help debug network problems, if you know how to interpret its results.
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IPCop v1.4.0 Installation Manual
You will be installing an operating system on the IPCop PC. It is a Linux based operating system, but it is not meant to be a general-purpose system. The firewall design attempts to eliminate as many features from the system as possible. The central idea is that the more code that runs on the firewall, the more places there are that are vulnerable to attacks. Do not expect facilities like sendmail or FTP daemons to be present. These are not needed on a firewall and may contain holes that are known to malicious users. Although these instructions will appear to be long and often detailed, take heart. Once you've figured out what you want to do and have obtained your current configuration parameters, installing IPCop will take as little as fifteen minutes.
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IPCop 140 Blue Vpn Howto
My biggest headache with IPCop has been getting VPN on Blue to work. Judging from the number of posts on this topic, I am not alone. I have it working now and thought I would post a little mini-tutorial for those others trying to figure it out.
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IPCop Firewall, The Bad Packets Stop Here
IPCop Linux is a complete Linux Distribution, which has the sole purpose of protecting the networks it is installed on. By implementing existing technology, outstanding new technology and secure programming practices, IPCop is the Linux Distribution for those wanting to keep their computers/networks safe. Whether for your home or SOHO, IPCop may be all the firewall you will ever need.
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Netcat The TCP/IP Swiss Army Knife
A quick search on securityportal.com found 166 matches of netcat. Most of the matches describe or use netcat in some way. Netcat is a utility that is able to write and read data across TCP and UDP network connections. If you are responsible for network or system security it essential that you understand the capabilities of netcat.
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Password cracking with L0phtCrack 3.0
This paper was designed to describe how most password crackers operate. In today's world of security, password security is one of the priorities for all authentication-based protected systems.
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Using Sam Spade
A number of command-line tools were developed on UNIX systems during the early days of the Internet to assist in determining the source of Internet traffic. These tools include: whois, traceroute, finger, ping, and nslookup. While a number of these have been implemented in the various Windows operating systems, the Sam Spade utility provides all these tools and more in a graphical user interface. This paper will examine a number of the more useful tools in Sam Spade.
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