LinuxDevCenter.com
oreilly.comSafari Books Online.Conferences.

advertisement


Backups, New Features of pf, and Rootkit Protection

by chromatic
Linux Newsletter for 03/10/2003

Welcome to another Linux newsletter. Though the skies are overcast here on the west coast, the birds are out and about. Here's hoping you have decent weather to sit back and enjoy a few interesting articles.

Glenn Graham starts things off by exposing a dirty little secret about network backups. He likes to use cron and NFS to back up files and such to a central server. "What?", you might ask. "That simple?" Yes, and it works fairly well. Although there are lots of back-up solutions, both software and hardware, it illustrates a clever, Unixy way to administer your systems. Read more in Network Backups over NFS.

Jacek Artymiak thinks that pf has matured greatly since it replaced ipf in the OpenBSD 3.0 days. He's taking a voluminous look at the new and interesting features in his Securing Small Networks column. This week, he looks at setting up and Redirecting Traffic with NAT and pf.

Dru Lavigne laments the fact that putting a box on the Internet means you have to be paranoid about a few malicious people trying out their grab bag of exploits. Even though you're running Linux, FreeBSD, or OpenBSD, you still need to be vigilant. Learn how to protect yourself in Avoiding Rootkits and Trojans. Although she's looking at FreeBSD in particular, many techniques still apply.

To subscribe to the Linux newsletter (or any O'Reilly Network newsletters), visit https://epoch.oreilly.com/account/default.orm and select the newsletters you wish to receive in your user profile (you'll need to log in with your existing O'Reilly Network account -- if you don't yet have an account, you'll need to create one).

To change your newsletter subscription options, please visit https://epoch.oreilly.com/account/default.orm and click the"Manage My Newsletters" link. For assistance, send email to

Join us again next week when your editor will happily admit to posting articles about Egoboo, PHP forms, and government-funded free software.

Until then,

chromatic
chromatic@oreilly.com
Technical Editor
O'Reilly Network

ONLamp.com and Linux DevCenter Top Five Articles Last Week

  1. Testing SMP Kernel Modules with UML
    Code that works well on a single-processor box may fail spectacularly on a multiprocessor box. Until recently, the only way to test this was to use a two-, four-, or more-way machine. Not anymore! Jerry Cooperstein introduces UML (User Mode Linux) and demonstrates how to emulate a multiprocessor machine with it by testing kernel modules.

  2. NAT with pf
    OpenBSD's packet filter has really grown up. Since its introduction in OpenBSD 3.0, it has become an advanced tool for networking and security. In the first of four articles, Jacek Artymiak examines recent updates to pf. This week, he looks at Network Address Translation.

  3. Avoiding Trojans and Rootkits
    It's a sad reality that connecting to the Internet puts your computer at risk. Of course, there are several ways to mitigate that risk. Dru Lavigne explains a few good habits to reduce the danger and introduces tripwire, an open source file integrity utility.

  4. Using NFS for Networked Backups
    As mass storage prices continue to fall, making backups to a centralized server starts to look convenient. Of course, the mechanics of this situation can be tricky. Glenn Graham demonstrates a quick and easy solution using NFS.

  5. Running Samba on the Mac OS X Server
    Mac OS X Server differs from Mac OS X in how it deals with the configuration of Samba-based services. In this excerpt from Using Samba, 2nd Edition, learn how to set up SMB files and printer shares, enable client user access, and monitor activity, all on Mac OS X Server 10.


Return to the list of Linux Newsletters.

Return to the Linux DevCenter.




Linux Online Certification

Linux/Unix System Administration Certificate Series
Linux/Unix System Administration Certificate Series — This course series targets both beginning and intermediate Linux/Unix users who want to acquire advanced system administration skills, and to back those skills up with a Certificate from the University of Illinois Office of Continuing Education.

Enroll today!


Linux Resources
  • Linux Online
  • The Linux FAQ
  • linux.java.net
  • Linux Kernel Archives
  • Kernel Traffic
  • DistroWatch.com


  • Sponsored by: