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Wednesday, 08 September 2010
Mozilla and Firefox Flaws PDF Print
Articles - Kernel Programming
Courtesy: guri  

Welcome to Security Alerts, an overview of recent Unix and open source security advisories. In this column, we look at problems in gzip, Mozilla and Firefox, OpenOffice.org, the FreeBSD kernel, Ethereal, TCPDump, libTIFF, Smail, Apache2's htdigest, and SCO UnixWare's chroot.

 
Writing PAM Modules, Part One PDF Print
Articles - LAMP
Courtesy: guri  

PAM stands for Pluggable Authentication Modules, and is a way of providing application independence for authentication. A PAM-enabled application calls a stack of PAM modules to run authentication, open and close sessions, and check account validity.

 
Introduction to PAM PDF Print
Articles - LAMP
Courtesy: duke  

User authentication has always been a problem. Build it into a program, and it's hard to change. Leave it out, and you have no security at all. Now there's an alternative: PAM, or Pluggable Authentication Modules.PAM provides an interface that programs can use to connect to whatever authentication methods are desired. Authentication can be as trivial as the user typing "hello world", as complex as biometrics, or as prosaic as passwords.

 
CUPS Vulnerabilities PDF Print
Articles - Linux User Groups
Courtesy: dave  

Welcome to Security Alerts, an overview of recent Unix and open source security advisories. In this column, we look at buffer overflows in libmcrypt, HSphere Webshell, HTTP Fetcher Library, LCDproc, and UnixWare and Open UNIX's ps; and problems in the Common Unix Printing System, BitKeeper, FreeBSD's fpathconf(), S-PLUS, dhcpcd, leafnode, and Middleman.

 
New Security Problems and a Warning About Checking User Input PDF Print
Articles - Linux User Groups
Courtesy: duke  

Welcome to the Security Alerts column, an overview of new Unix and open source security-related advisories and news. Problems this week include buffer overflows in splitvt, bing, write, and Lotus Domino's SMTP server; temporary file problems with webmin and Apache's mod_rewrite; format string problems with icecast; ip firewalling problems with FreeBSD; and SQL problems in Postaci.

 
Using Squid on Intermittent Connections PDF Print
Articles - Network
Courtesy: Sukhi  

One of the more frequent requests on the Squid mailing lists is for help configuring Squid to operate well on dial-up or demand-dial networks. Offline mode will function for some of these networks, but is far from ideal. Unfortunately many of the features of Squid's offline mode appear to have largely vanished during the development of the Squid 2.x series. In the 2.3 STABLE 4 version, the offline mode has nearly no effect at all.

 
Security Alerts PDF Print
Articles - Network
Courtesy: george  

Welcome to Security Alerts, an overview of new Unix and open source security-related advisories and news. Problems this week include root exploits in the MarkVision printer drivers package, local and remote root exploits in KTH Kerberos, buffer overflows in Red Hat's PAM, a discussion of security problems with web-based applications, and an example of one of these web-based security problems in phpGroupWare.

 
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Special Note
The first Linux systems were completed in 1992 by combining system utilities and libraries from the GNU project with the Linux kernel, which led to the coining of the term GNU/Linux. From the late 1990s onward Linux gained the support of corporations such as IBM, Sun Microsystems, Hewlett-Packard, and Novell. Since then Linux is growing day by day and today it is about to beat Microsoft Windows OS in all means.
 
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