TODAY'S  MOST  POPULAR  HEADLINES

Novell grooms NetWare-Linux lovechild

Moonlight 1.0 Beta Available

Launchpad Launches Plugin API

Packet

Ssysthread small packet sniffer (pkr)

03/09/2008  
Relevance: 9.80
  Originally calledportkeeper thepkr utility does rudimentry packet sniffing and will alarm on certain packet errors. It is known to work on the following systems and distributions:
Search further

Predicting Solaris 10 TCP Sequence Numbers Part 1: Initial Discovery

12/02/2008  
Relevance: 8.32
Solaris 10 packet sequence numbers. Are they still bullet-proof? Were they ever? Does It Matter Anymore? A study in gross oversimplification. Today, we're going to look at a subject that gets plenty of attention (but, maybe not as much publicity) in the world of Unix and Linux network computing: TCP packet sequence number prediction, how it's used to protect network transmissions and whether or not, with the advent of packet checksumming, etc, it's even a factor in basic network security anymore.
Search further

Review: Cisco Express Forwarding

06/14/2007  
Relevance: 7.45
To quote from the book's back cover:"How does a router switch a packet?""What is the difference between routing a packet, switching a frame, and packet switching?" Ever wanted to know? Yes, at the CCNA level, we are all taught the differences between these processes but only to a superficial degree. The in-depth explanation lies in understanding Cisco Express Forwarding (CEF) which"is found in almost all Cisco routers and Catalyst switches..." Supposedly,Cisco Express Forwarding"demystifies the internal workings of Cisco routers and switches, making it easier for you (the reader) to optimize performance and troubleshoot issues..." Ok, enough of the back cover hype. Let's see what this book has between the covers.
Search further

Simplify system security with the Uncomplicated Firewall

10/02/2008  
Relevance: 7.42
The Uncomplicated Firewall (UFW) is a new tool from Ubuntu whose goal is to make configuration of the built-in Linux packet filter less complicated and more secure for novice users. You must run UFW commands as root, so in Ubuntu, you must preface them with the sudo command. With UFW, enabling and disabling packet filtering is a simple matter of issuing the sudo ufw enable and sudo ufw disable commands. You set the default policy for filtering packets by running the sudo ufw default command and passing the allow or deny argument, depending on what you want to achieve. If you issue the sudo ufw default allow command, all incoming packets will be allowed by default, creating a very unsecure packet filter but giving you the broadest range of allowed services. The command sudo ufw default deny will block all incoming packets, requiring that you allow specific services to pass the packet filter.
Search further

Linux and Citadel provide infrastructure over packet radio for public service events

03/04/2008  
Relevance: 7.20
A group of volunteers in the Twin Cities area has built an AX.25 packet radio network for emergency response and public service. The network's back end is powered by Linux and the Citadel open source groupware system.
Search further

Review: Practical Packet Analysis

06/07/2007  
Relevance: 7.12
Everybody, from seasoned network administrators to people that just use the Internet to check the TV listings, will experience network problems at some point. Despite their varied technical knowledge, there is one tool that everybody can use: Wireshark. Whats the quickest way to learn this fantastic tool? Read Practical Packet Analysis, by Chris Sanders, which provides all the basic information anybody needs to start troubleshooting their network.
Search further

How To Set Up A Linux Layer 7 Packet Classifier On CentOS 5.1

08/02/2008  
Relevance: 7.10
This tutorial will walk you through setting up a Linux layer 7 packet classifier on CentOS 5.1, this can easily be adapted to any other Linux distribution out there.
Search further

Device Profile: Bivio B7000 deep packet inspection appliance

03/13/2007  
Relevance: 6.78
Bivio Networks has added a high-end model to its line of Linux-based network appliances for deep packet inspection. The B7000 runs the company's Linux-based BiviOS on an interesting AMP (asymmetrical multiprocessing) architecture claimed capable of wirespeed network application processing at 10 gigabits-per-second.
Search further

Fwknop and single packet authorization

05/20/2008  
Relevance: 6.58
Protecting servers by placing them behind a firewall is a best-practice methodology for systems administrators, but it's not a panacea: those systems are still visible to network scanners such as nmap and nessus. While services like SMTP and HTTP may need to be accessible to the public, most enterprises also have private internal servers that require external access by traveling support staff. For those users, fwknop, an open source utility that provides single packet authorization, can help sysadmins hide their servers from network nasties.
Search further

Linux Firewalls

01/04/2008  
Relevance: 6.48
Linux Firewalls, authored by Michael Rash and published by No Starch Press, covers five main topics: traditional packet filtering with iptables, port scan detection, snort rule translation, port knocking, and log visualization. At first I considered only skimming the chapters regarding iptables packet filtering. I have a good amount of experience with iptables, and have been running it for several years. Thankfully I decided to give the first chapter a good read. Right from the start, the book presented valuable information and pulled me in.
Search further

Showing 10 articles of total 22538 in database ( English).

[1]  2  3  4