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NETWORK WORLD NEWSLETTER: PHIL HOCHMUTH
on LINUX 11/20/01 - Today's focus: Putting a lid on the penguin Dear Wincenty Kaminski, In this issue: * Protecting Linux * Links related to Linux * Featured reader resource _______________________________________________________________ This newsletter sponsored by VeriSign - The Value of Trust Do you need to encrypt all your online transactions? Secure corporate intranets? Authenticate your Web site? Whatever security your site needs, you'll find the perfect solution in this FREE Guide from VeriSign, "Securing Your Web site for Business." Get your copy today to learn the facts! Click here! http://nww1.com/go/3500727a.html _______________________________________________________________ TAKE IT OFF-LINE The high-tech industry has always run at breakneck pace. Even a wheezing economy will hardly slow it. In the past year, business theory surrounding technology has been reinvented and redefined multiple times. Check out the latest "must-read" books for technology-related business theories. http://nww1.com/go/ad204.html _______________________________________________________________ Today's focus: Putting a lid on the penguin By Phil Hochmuth Since you can't have enough security these days, Linux users may want to check out LIDS, an open source tool for locking down their Linux-based file and Web servers. The LIDS (Linux Intrusion Detection System) Project is an open source development effort that has spawned some code that could be useful in protecting Linux file systems from hackers and keeping critical Linux applications from being compromised. According to its creators, LIDS can be used to protect a Linux server from attacks such as "buffer overflow" and "string format" attacks, which are used to disrupt a Linux system's software with a barrage of requests and gain access to the server's system files or applications. LIDS is a patch for Linux kernel v. 2.4.14 or earlier, and adds security features such as access control lists, which bolster existing Linux control mechanisms for authenticating users to a system. It is also designed to protect files and processes from being changed or deleted, even by users with "root" or administrative level access to a Linux system. LIDS adds a port scanner detector to a Linux kernel, which can be configured to detect intruders by identifying patterns of activity on certain server ports, such as port 80 (HTTP), and notifying an administrator of such events. The system also can keep a log file of rule violations and other unauthorized access attempts on server resources. An administration tool included in the LIDS software is used to set system rules and to designate what files and processes to protect. _______________________________________________________________ To contact Phil Hochmuth: Phil Hochmuth is a staff writer for Network World, and a former systems integrator. You can reach him at mailto:phochmut@nww.com. _______________________________________________________________ NW Fusion's BuyIT has the IT resources you need! Our directory hosts thousands of qualified service providers. Post an RFP anonymously and FREE, receive competitive bids, begin negotiations, and get your project done right! http://nwfusion.newmediary.com/nww110901nwltr1 _______________________________________________________________ RELATED EDITORIAL LINKS Check out LIDS for yourself http://www.lids.org/ Ramen Linux worm seen in wild IDG News Service, 01/25/01 http://www.nwfusion.com/news/2001/0125ramen.html Breaking Linux news from Network World and around the 'Net, updated daily: http://www.nwfusion.com/topics/linux.html Archive of the Linux newsletter: http://www.nwfusion.com/newsletters/linux/index.html ______________________________________________________________ FEATURED READER RESOURCE Network World Fusion's The Edge site Network World Fusion's The Edge is a resource devoted to the advances in service-provider networks that are shaking up the old telecom order. In classic Network World fashion, we focus on the hardware, software and services coming to market - but this time from the vendors targeting legacy carriers, new alternative local carriers, ISPs and application service providers. http://www.nwfusion.com/edge/index.html _______________________________________________________________ May We Send You a Free Print Subscription? You've got the technology snapshot of your choice delivered at your fingertips each day. Now, extend your knowledge by receiving 51 FREE issues to our print publication. Apply today at http://www.nwwsubscribe.com/nl _______________________________________________________________ SUBSCRIPTION SERVICES To subscribe or unsubscribe to any Network World e-mail newsletters, go to: http://www.nwwsubscribe.com/news/scripts/notprinteditnews.asp To unsubscribe from promotional e-mail go to: http://www.nwwsubscribe.com/ep To change your e-mail address, go to: http://www.nwwsubscribe.com/news/scripts/changeemail.asp Subscription questions? Contact Customer Service by replying to this message. Have editorial comments? Write Jeff Caruso, Newsletter Editor, at: mailto:jcaruso@nww.com For advertising information, write Jamie Kalbach, Fusion Sales Manager, at: mailto:jkalbach@nww.com Copyright Network World, Inc., 2001 ------------------------ This message was sent to: vkamins@enron.com
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