Linux Network Security - Page 81

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System Fingerprinting With Nmap

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When someone with half a clue decides to attack your system, he or she will first try to identify the operating system. Not every attack proceeds this way: Script kiddies probe huge address spaces looking for any system with a particular port open, which indicates that just maybe that system will be vulnerable. But for the professional penetration tester or hacker, identifying the operating system is an essential step in probing. . . .

Anthony Pell
Nov 08, 2000

Majority of websites vulnerable to attack

Two out of every three websites are open to cyber attacks, said US researcher Gartner. John Pescatore, senior security analyst at Gartner, said website intruders could at the very least change the content and in some cases access information such as customers' credit card details.. . .

Anthony Pell
Nov 07, 2000

Is there hope?

What is the feasibility of running national federal elections over the Internet? SunWorld guest writer Avi Rubin focuses on the limitations of the currently deployed infrastructure, with an emphasis on concerns over the security of voting hosts and . . .

Anthony Pell
Nov 06, 2000

Saint 3.1 Released

The Security Administrator's Integrated Network Tool (SAINT), an updated and enhanced version of SATAN, is designed to assess the security of computer networks. More information about SAINT can be found in the on-line documentation. This version features a new custom scan . . .

Anthony Pell
Nov 01, 2000

Experts fear cyber warfare

The growing electronic war between Israeli and pro-Palestinian hackers threatens to shut down large portions of the Internet, government and industry, experts warned last night. The FBI's National Infrastructure Protection Center, the agency that combats cybercrimes, recently sent out an advisory . . .

Anthony Pell
Nov 01, 2000

Experts say browsers fall short on certificate alerts

A mishap that compromised the integrity of two security keys used by Sun Microsystems is fueling criticism of current methods for scrambling sensitive data and verifying identities on the Web. Sun last week issued a warning that two of its applications' . . .

Anthony Pell
Oct 31, 2000

Bug Watch: Can you trust mobile workers?

Bug Watch: Each week vnunet.com asks a different expert from the IT security world to give their views on recent virus and security issues, with advice, warnings and information on the latest threats. This week Jack Clark, European antivirus product manager . . .

Anthony Pell
Oct 27, 2000

Intel relaxed over email security

Intel's dinky little eMail Station, part of the InBusiness range it inherited from Dayna, turns out to be susceptible to simple denial of service attacks, but the chip behemoth doesn't seem to care a Hell of a lot. The eMail Station . . .

Anthony Pell
Oct 26, 2000

Security through obscurity

Is security through obscurity ever a useful way to protect your network, or does it just make things easier for corporate spies and hackers? This week in Unix Security, Carole Fennelly investigates who's benefiting from this security tactic. . . .

Anthony Pell
Oct 25, 2000

Wireless Devices Present New Security Challenges

Gloomy security forecasts, rampant macro viruses, and stagnating denial-of- service attacks haven't stopped E-commerce sites from deploying more services on the Internet. Likewise, there's no sign that these events are stopping wireless developers from deploying all sorts of Web sites and . . .

Anthony Pell
Oct 24, 2000

Broadband Could be Hackland

Consumers with high-speed connections to the Internet, like those provided by DSL and cable modems, are surfing at their own risk unless they take pains to protect their computers, said Frank Prince, an analyst at Forrester Research. Prince said that because . . .

Anthony Pell
Oct 23, 2000

Denial-of-service attacks still a big threat

The types of massive distributed denial-of-service (DDOS) attacks that knocked several big e-commerce Web sites out of action earlier this year remain a viable threat that could grow even more sophisticated, according to experts at this week's government-sponsored National Information Systems . . .

Anthony Pell
Oct 23, 2000

Wireless Security

Wireless devices are flooding the airwaves with millions of bits of information. Securing those transmissions is the next challenge facing e-commerce. In the not-too-distant future, you won't think twice about using your cell phone or PDA to access Amazon.com, Chase . . .

Anthony Pell
Oct 19, 2000

Special Report: Unlocking PKI

... PKI isn't a drop-in proposition. Someone's got to design an infrastructure for it, based on both the requirements of the technology and the structure of the organization's existing security systems. Key pairs and digital certificates must be generated, distributed, and . . .

Anthony Pell
Oct 09, 2000

Sniping at OpenBSD

Last week several vulnerabilities with OpenBSD were announced on the full disclosure list Bugtraq. That a hole was found and exploited is not an amazing thing. The amazing and impressive thing is how long OpenBSD had gone without a local root . . .

Anthony Pell
Oct 09, 2000

Cyber-Crime Center Opens

Fairfax County this week became the nerve center for the federal government's war on Internet crimes that cross international borders, with the opening of the U.S. Customs CyberSmuggling Center. . . .

Anthony Pell
Oct 05, 2000

Experts applaud move to close WAP security hole

European experts today welcomed news that US authorities have finally standardised an encryption algorithm, saying that it will help close a security hole in WAP gateways. According to cryptography experts, current encryption techniques leave wireless transactions open to fraud, but the . . .

Anthony Pell
Oct 05, 2000

Secure SHell now in NetBSD mainline

An OpenSSH-based Secure Shell is now available in the main NetBSD sources. And it will be pulled into the netbsd-1-5 branch, so it will be available in NetBSD 1.5. (ssh-1.2.27 and OpenSSH were already available in the NetBSD packages collection.). . .

Anthony Pell
Oct 04, 2000

Tutorial - Lesson 129: Proxy Servers

First, the proxy server acts as an intermediary, helping users on a private network get information from the Internet when they need it, while ensuring that network security is maintained. Second, a proxy server may store frequently requested information in a . . .

Anthony Pell
Oct 02, 2000

ICMP Stands For Trouble

The Internet Control Message Protocol (ICMP) is simple, as Internet protocols go. Originally described in RFC 792 by Jon Postel, ICMP provides a way for IP stacks to send simple messages containing information or errors. ICMP is important for the Internet . . .

Anthony Pell
Oct 02, 2000

Linux Network Security - Page 81

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