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Working with Security
Using the root account for day-to-day work is a bad idea. It's better to use sudo to act like root when you need to do a little system administration. Ken Hess shows you how.
Kerberos and LDAP are popular, separately, but if you put them together they provide a powerful solution for secure authentication. In the first of two tutorials, Juliet Kemp walks through installation and configuration of Kerberos.
Juliet Kemp explains how to install and configure LDAP, and get it working with Kerberos, to provide a powerful solution for secure authentication.
Security Perspectives
Get to know this reverse proxy load balancer for web traffic with SSL support.
Connecting to your home computer from work, a friend's house, or while on vacation in another country is very simple — if you know how to use a small handful of tools. Ken Hess shows you how to connect securely and tunnel traffic using SSH.
Improve system security by expiring user passwords from time to time. The command passwd -x 30 joe forces joe to change his password after thirty days.
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Learn how to tune and extend SpamAssassin to catch more spam.
Intrusion detection is critical for network security. Use Bro to catch miscreants red-handed.
A virtual private network (VPN) extends the resources of your local area network to telecommuter’s home, satellite offices, and far-flung sales warriors. OpenVPN is a fast, scalable, secure, and free VPN solution for Linux. And best of all, it’s easy to configure and deploy. Here’s a hands-on primer.
Fight the spread of spyware and malware with CLAMAV and AVG Free, two cost-free Linux antivirus solutions.
If you're running Linux, you should be aware that using telnet is a no-no. With the wide availability of network sniffers and automated password grabbing tools, telnet is simply not a secure way to work. Instead, use ssh and keep your passwords in keychain.
Improve system security by expiring user passwords from time to time. The command passwd -x 30 joe forces joe to change his password after thirty days.
Configuring PAM can be tricky. Look at some examples and learn what rationales work for customizing your own.
Hide messages in images with simple steganography tools.
Start using the Pluggable Authentication Modules(PAM) system to manage login authentication. (You can also read http://www.linux-mag.com/2000-06/guru_01.html.)
Network tunneling can be helpful and even necessary, but it can also be used to circumvent security policies. Here’s a survey of the best tunneling tools available and a list of techniques that may help you detect active tunnels.
A survey of 6,344 developers shows that software managers find Linux to be more secure than Windows. BZ Media conducted the study, by asking more than 6,000 software develoment managers to rate the security of server OSes.
Windows Server was rated very insecure or insecure by 58 percent of the respondents, followed by 13 percent rating Linux insecure or very insecure. Sun's Solaris received the best response, with only 6 percent of respondents rating Solaris insecure. 78 percent of those taking the survey found Linux to be "secure" or "very secure." ZDNet also has coverage of the results.
When a malcontent breaks into, or cracks, your computer, your reactions are likely to be very much the same. What was taken? What was left behind? Is the computer safe to use? How can I keep my computer safer in the future? To find answers, reach for The Coroner’s Toolkit.
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Podcast: Ted Ts'o InterviewIn this podcast, Ted Ts'o, the Linux Foundation's newly appointed Chief Platform Strategist, takes a few minutes to talk to Linux Magazine about his new role with the Linux Foundation, the status of Ext4, the Linux Standard Base, and more. |
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Podcast: Interview with Ubuntu's Jono Bacon and Jorge Castro This week we spent some time talking to Ubuntu Community Manager Jono Bacon, and External Projects Developer Liaison Jorge Castro, about the Ubuntu community, Personal Package Archives, and where Linux is headed in 2008. |
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