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Linux Network Security - Page 79

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Microsoft: DNS Outsourcing to Linux After Service Outage

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Last week Microsoft's Web server became unavailable to many users first through router misconfiguration and later through a denial of service attack. Networking experts blamed Microsoft's problems on a network domain which they said featured all four of its domain name . . .


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Microsoft: Major Sites Inaccessible Due To Potential DoS Attack

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Several of Microsoft's high-profile Web sites remained inaccessible late Wednesday morning, a problem that has lasted nearly half a day and that may be the result of an attack. Since Tuesday night, the software and Internet giant has experienced . . .


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Strategies To Safeguard Public Websites From DoS Attacks

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The challenge for successful public Web sites is to encourage access to the site, while eliminating undesirable or malicious traffic, and providing the necessary levels of sufficient security without creating constraining site limitations in performance or scalability. Disruption of service caused . . .


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Mafiaboy's Guilty Plea Exposes DDoS Security Weaknesses

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Mafiaboy, the Canadian teenager accused of launching a series of distributed denial of service attacks against a septet of the Internet's most popular sites last year, pleaded guilty Thursday to 56 of the 66 charges against him--just before his trial was . . .


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Red Hat 6.2 Security Advisory: Ramen Worm Moderate Threat Report

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A self-propagating worm known as Ramen is currently exploiting well-known holes in unpatched Red Hat Linux 6.2 systems and in early versions of Red Hat 7.0. In addition to scanning for additional systems and propagating to vulnerable systems, the worm also . . .


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Advances in Network Security and Telecommunications for the 21st Century

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By the time this article appears in print, the world will be about to enter - or will have just entered - the 21st Century. On January 1, 2001, humanity will still not have fulfilled some of the more flamboyant predictions . . .


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Red Hat: Ramen Internet Worm Exploiting Security Issues in 6.2 and 7.0

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Ramen is an Internet worm, which propagates from a Linux based server to another. It works in a similar way as the Morris Worm that was widespread in 1989. Ramen affects systems running a default installations of Red Hat Linux . . .


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Techniques to Detect Filtered Hosts and Bypass Firewalls

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This paper will attempt to describe techniques used to discover heavily filtered and firewalled hosts, that will not answer to standard PING responses. It is assumed that the reader has a firm knowledge of the major internet protocols (TCP,IP,UDP,ICMP). . . .


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Asta Networks Launches Innovative Router Software for DoS Defense

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Asta Networks will announce Wednesday it has developed router-based software that can detect Internet denial-of-service (DoS) attacks within moments, giving targeted companies precious time to react. The Seattle-based company's software detected a series of denial-of-service attacks over the Internet between Christmas . . .


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Red Hat Linux Exploit: Ramen Worm Compromises Thousands Of Servers

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An Internet worm cobbled together from generally available hacking tools has compromised hundreds, perhaps thousands, of Linux servers by using two well-known security flaws in applications set up during the default installation of Red Hat Linux software.. . .


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Understanding Snort for Network Monitoring on IIS Platforms

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Martin Roesch developed Snort in 1998 for Unix platforms. Dubbing it a "Lightweight Intrusion Detection System," Martin made the tool open source and the number of people using Snort has been growing ever since. In the summer of 2000, Mike Davis . . .


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UUNet UK: Persistent Email Delays Following Recent Spam Attack Issues

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Five days after being brought to its knees by spam UUNet's service is still struggling to get back to normal. In a statement issued this morning UUNet said its customers in the UK "may continue to experience some delays in email . . .


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Increasing E-Commerce and Mobile Commerce Opportunities in Today's Market

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Dot-com businesses may be falling by the wayside, but the percentage of commerce happening via the Web continues to grow. Meanwhile, hundreds of millions of cellular subscribers worldwide are gaining access to new wireless data choices, including Web-enabled cell phones, handheld . . .


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DoS Warning: Protect IRC Services Against Possible Attacks

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Recent vicious cyberattacks on IRC services have now been linked to a National Infrastructure Protection Center security warning that advised systems administrators to protect their systems against a potential widespread distributed denial of service attack over New Year's weekend. . . .


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Developing Samhain: An Open Source Initiative for Cyber Worms

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Over year ago, with couple of friends, we started writing a project, called 'Samhain' (days ago, on packetstorm, I noticed cute program with same name - in fact it's not the same app, just a coincidence ;). We wanted to see . . .


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Exploring Biometric Access Control Systems: Strengths And Weaknesses

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Biometrics have garnered increasing attention and backing in the last few years. We are promised a utopian existence: never again will you forget your password or need to remember your access card to get into the building. Unfortunately, it isn't quite . . .


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Major DDoS Attack on Undernet IRC Network by Romanian Hacker

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A Romanian hacker has launched a major distributed denial of service (DDoS), forcing one of the largest IRC (Internet Relay Chat) networks, Undernet, to shut down much of its service, system administrators said Monday.. . .


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Official Guidelines For Evidence Retrieval And Processing At Crime Scenes

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In addition to photographs and sketches of the crime scene, a detailed accounting of all computer evidence is required. The search and seizure evidence log should incude brief descriptions of all computers, devices or media located during the search for evidence. . . .


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Essential Security Programs For LinuxPPC: Overview Of OpenSSH And GPG

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This article provides a brief overview of programs including OpenSSH, GPG, and pointers to further information. "If you're like most LinuxPPC users, a large portion of your computing time is spent using network-based applications, either explicitly or implicitly. Unless you maintain . . .


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E-Gap Technology Secures E-Commerce Systems Against Hacker Attacks

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Most e-commerce sites use sophisticated encryption to encode sensitive information and make it unreadable to outsiders. Whale's system, called "E-Gap," goes another route. What it does is ensure that hackers cannot jump from the Internet into a company's "back office" -- . . .

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