Linux Network Security - Page 67

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Security poses primary wireless challenge

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The Defense Department faces many obstacles in its attempt to outfit soldiers with reliable, interoperable wireless communications on the battlefield, including battery-life concerns, the need for ruggedized machines and ever-present bandwidth issues. . . .

Anthony Pell
May 06, 2002

Wireless strategy behind closed doors

About 20 academics, business executives and members of government agencies begin meeting Monday behind closed doors in Washington, D.C., to discuss their concerns about wireless security. Called "A Roadmap to a Safer Wireless World," the forum will bring together people who typically don't communicate with each other, yet make decisions that impact the fate of wireless technology.. . .

Anthony Pell
May 03, 2002

How a Virtual Private Network Works

For years, voice, data, and just about all software-defined network services were called "virtual private networks" by the telephone companies. The current generation of VPNs, however, is a more advanced combination of tunneling, encryption, authentication and access control technologies and services used to carry traffic over the Internet, a managed IP network or a provider's backbone. . . .

Anthony Pell
May 03, 2002

What is a VPN? .. Explaining Virtual Private Networks

private networks to be connected over a publicly accessed network. In a sense, VPNs are similar to wide area networks (WAN) or a securely encrypted tunnel, but the key feature of VPNs is that they are able to use public networks like the Internet rather than rely on expensive, private leased lines. At they same time, VPNs have the same security and encryption features as a private network, while taking the advantage of the economies of scale and remote accessibility of large public networks. . . .

Anthony Pell
May 02, 2002

TCP/ IP and tcpdump Flyer (PDF)

Sans has provided a TCP/IP and tcpdump flyer guide.

Anthony Pell
May 01, 2002

Mind the Ether with Network Monitors for Windows and Linux

If you like these network monitors, you'll also like netsaint. "The wise network admin employs an array of tools to monitor network activity. There are almost as many monitoring apps as network admins, here are some I've found to be useful and versatile. I like color pictures and graphs, you can't beat scary little red icons for quickly identifying trouble spots.. . .

Anthony Pell
Apr 30, 2002

Training the cyberwar troops

Systems administrator David Riebrandt's first hint that intruders had hacked the military network came from telltale electronic footprints. From the logs--electronic records of the information passed on the network--it quickly became evident that a server with gate-keeping control over different parts . . .

Anthony Pell
Apr 26, 2002

Wireless Lans can be secure

In the 1994 film Renaissance Man, Danny DeVito describes Military Intelligence as an oxymoron. Who would have thought that eight years later many would be making the same criticism of wireless security? At the heart of the problem is the slow rate at which most corporate security policies and solutions actually develop, and the way that 'mobile' is viewed within businesses.. . .

Anthony Pell
Apr 26, 2002

Setting up a FreeBSD firewall with an IPSec uplink

Though this article mainly deals with problems inherent to wireless networks, the principals apply equally well to wired networks. Also, though FreeBSD is the OS referenced, this may work equally well with other flavors of BSD . The version of FreeBSD . . .

Anthony Pell
Apr 25, 2002

Security exhibitors set up insecure WLANs

Wireless networking insecurity was a key theme of this week's InfoSecurity show with a number of suppliers coming out with surveys on just how vulnerable world+dog is to drive by hackers.. . .

Anthony Pell
Apr 24, 2002

Third of UK businesses at DDoS risk

A third of all UK businesses will be hit by a distributed denial of service (DDoS) attack during 2002, resulting in £54m in lost revenue. DDoS attacks have long been a headache for online firms because their disparate nature makes them almost impossible to defend against.. . .

Anthony Pell
Apr 24, 2002

Wireless LAN Security: A Short History

If you're holding back on an 802.11 deployment because of security concerns, you're not alone. Research indicates that the perceived insecurity of wireless networks is a major inhibitor to further market growth. . . .

Anthony Pell
Apr 22, 2002

Symantec warns of blended security threats

Attacks on corporate computer systems will continue to get more sophisticated, simultaneously targeting several areas of vulnerability in "blended" attacks, according to executives from security vendor Symantec. . . .

Anthony Pell
Apr 19, 2002

Build a Flexible VPN with FreeS/WAN and Linux, Part 2

Part One of this article discussed the advantages of FreeS/WAN, a Linux-based VPN package that allows even older Pentiums to be pressed into service as flexible VPN servers and offered an overview of how to build a test-bed network. In Part Two, Carla Schroder discusses basic installation and configuration. In part 1 we discussed what FreeS/WAN does. Now we put it to work. . . .

Anthony Pell
Apr 19, 2002

Networks ill-prepared for hackers, terrorists

The government is failing to strengthen security measures for its computer systems and networks across all departments, exposing critical government infrastructure to cyber attacks by thrill-seeking hackers and terrorists, the Auditor-General warned yesterday. . . .

Anthony Pell
Apr 19, 2002

The Heart of a Killer Network Security System

'Of course, this risk and vulnerability assessment process is continual [because] the price of security is eternal vigilance,' IDC vice president Chris Christiansen told NewsFactor. When asked what he believes would be the ultimate network security system, Charles Kolodgy, Internet security group research manager at IDC, told NewsFactor that the ultimate network security system would be one with no connections. . . .

Anthony Pell
Apr 18, 2002

Build a Flexible VPN with FreeS/WAN and Linux

FreeS/WAN is an ideal solution for the overworked, harassed network admin who needs to bring together branch offices, telecommuters, and road warriors from anywhere over the Internet, and it does it all for the price of the hardware, with requirements that are surprisingly low. . . .

Anthony Pell
Apr 18, 2002

Security, Disaster Recovery Issues After Sept. 11

Since September 11, many organizations have taken a second look at their readiness for a disaster. They've realized that they just aren't prepared for a major catastrophe or they have underestimated what they really need. Are you and your organization prepared? . . .

Anthony Pell
Apr 18, 2002

Security in a Web Services World: A Proposed Architecture and Roadmap

This document describes a proposed strategy for addressing security within a Web service environment. It defines a comprehensive Web service security model that supports, integrates and unifies several popular security models, mechanisms, and technologies (including both symmetric and public key technologies) . . .

Anthony Pell
Apr 15, 2002

Using Network VATs for Verification

As it says in the Bible in Hezekiah 5:10, "The one who sets the plan in motion, but verifies it not, is worse than a fool." Okay, you know that there's no book of Hezekiah in the Bible. But, the statement is accurate, especially as it pertains to verifying the state of our security. And verification does not take an advanced science degree.. . .

Anthony Pell
Apr 11, 2002

Linux Network Security - Page 67

Linux Pentesting Distros: An Essential Tool for Strengthening Network Security

Enhancing Network Security with Linux Proxy Servers

OPNsense 24.7 'Thriving Tiger': Elevating Open-Source Network Security and Performance