Archive for the 'package management' Category

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• Download of The Day: Ubuntu Linux 8.10 RC (BETA) Intrepid Ibex
  

  Ubuntu Linux 8.10 release candidate beta version has been released and available for download from mirrors. The final stable version will be released on October 30th, 2008. But, if you would like to test latest version try out Intrepid Ibex RC beta version.

• Wikipedia Moving 400 Servers To Ubuntu Linux From Red Hat Linux
  

  Wikipedia is ditching out a mix of Red Hat and Fedora for Ubuntu Linux. Wikipedia has 10 million articles in 250 languages and it is one of the 10 most visited websites in the world.

• How to View Internet Explorer inside Firefox
  

  I’m a devoted Firefox user like most of you. However, at work I use Internet Explorer for couple of web applications that works only on IE. Wouldn’t it be nice to embed Internet Explorer inside Firefox as a tab to browse the websites that works only on IE? This is exactly what Firefox add-on IE Tab does as explained below.

  This is a great tool for web developers, since you can easily see how your web page displayed in IE with just one click and then switch back to Firefox.

• Critical Red Hat Enterprise Linux Kernel Update
  

  Red Hat issued an update version of Linux operating system core called kernel that plugs various security holes for RHEL 5.x. This update has been rated as having important security impact. All users are advised to upgrade kernel package.

• Red Hat / CentOS Linux 5.x: Perl Performance Bug Fix Available
  

  Perl version supplied with RHEL has bug, which will result code running at least 100 times slower than expected speed. Now, Red Hat updated perl packages that fix a performance issue. Earlier only solution was installing your own perl under /usr/local or other location. This fix will now take care of performance penalty.

• Security Alert: Debian OpenSSH packages Fix Denial of Service
  

  Debian Linux project released the Openssh security updates for computers powered by its Debian Linux operating systems. It has been discovered that the signal handler implementing the login timeout in Debian’s version of the OpenSSH server uses functions which are not async-signal-safe, leading to a denial of service vulnerability.

• What To Do: Users Still Wants Telnet
  

  TELNET (TELecommunication NETwork) is a network protocol used on the Internet or local area network (LAN) connections. It was developed in late 60s with RFC 15. Telnet is pretty old for login into remote system and it has serious security problem. Most admins will recommend using Open SSH (secure shell) for all remote activities. But you may find users who are still demanding telnet over ssh as they are comfortable with Telnet. Some users got scripts written in 90s and they don’t want to change it. So what do you do when users demands telnet?

• CentOS / Red Hat Enterprise Linux 5.2 Poor NFS Performance and Solution
  

  A few days ago I noticed that NFS performance between a web server node and NFS server went down by 50%. NFS was optimized and the only thing was updated Red Hat kernel v5.2. I also noticed same trend on CentOS 5.2 64 bit edition.

• Linux: Install Urchin 6 Web Analytics Software
  

  Web analytics is the study of online behaviour in order to improve it. There are two categories; off-site and on-site web analytics. Google’s Urchin 6 can be installed under Linux kernel 2.6 or 2.4 for Apache web log analysis. Urchin 6 is just like Google Analytics the most widely used hosted web analytics system. It is targeted at ecommerce web sites or enterprise users behind firewalls. In this mini series you will learn about installing and using web log analysis software called Google Urchin 6 under Red Hat Enterprise Linux 5.x.

• Postfix Mail Server Security Update [moderate security impact]
  

  Postfix MTA updated to fix security vulnerabilities such as incorrectly checks the ownership of a mailbox. In some configurations, this allows for appending data to arbitrary files as root. This update has been rated as having moderate security impact.

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