Our FAQ section is updated in last few days with new howtos:
- Linux / UNIX: Smartctl Check Hard Disk Behind 3Ware RAID Card
- Bash Shell Count Number of Characters In a String or Word
- HowTo: Find Out KSH ( Korn Shell ) Version
- Linux: Delete / Remove User Account
- No xauth Program; Cannot Forward With Spoofing Error and Solution
- RHEL Warning: RPMDB altered outside of yum
- RHEL / CentOS / Fedora: Verify GPG Key For Package Update
- VI / VIM: Open File And Go To Specific Function or Line Number
- Linux Find Out Kernel Module (Device Driver) Version Number
- Linux /boot: Out of Disk Space While Installing Package kernel-2.6.32-131.2.1.el6.x86_64
- Bash C Style For Loop Example and Syntax
- Backtrack 5 KDE startx Failed To Load Error and Solution
- Linux Command: Put Laptop / Netbook In Hibernate / Suspend Mode
- Linux: What is Dash ( /bin/dash ) Shell?
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Core dumps are often used to diagnose or debug errors in Linux or UNIX programs. Core dumps can serve as useful debugging aids for sys admins to find out why Application like Lighttpd, Apache, PHP-CGI or any other program crashed. Many vendors and open source project author requests a core file to troubleshoot a program. A core file is generated when an application program abnormally terminates due to bug, operating system security protection schema, or program simply try to write beyond the area of memory it has allocated, and so on. This article explains how to turn on core file support and track down bugs in programs.
“After The Software Wars”, is a new book in which former Microsoft employee Keith Curtis explores the worlds of proprietary and free software. Quoting from the article:
While I came to not be all that thrilled with Fedora itself, I was floored merely by the installation process. It contained a graphical installer that ran all the way to completion, it resized my NTFS partition — which I considered a minor miracle, setup dual boot, and actually did boot, and let me surf the Web. I didn’t have a clue what to do next, but the mere fact that this all worked told me more about the potential of Linux than anything I had read so far. You cannot, by accident, build an airplane that actually flies.
The ss command is used to show socket statistics. It can display stats for PACKET sockets, TCP sockets, UDP sockets, DCCP sockets, RAW sockets, Unix domain sockets, and more. It allows showing information similar to netstat command. It can display more TCP and state information than other tools. It is a new, incredibly useful and faster (as compare to netstat) tool for tracking TCP connections and sockets. SS can provide information about:
- All TCP sockets.
- All UDP sockets.
- All established ssh / ftp / http / https connections.
- All local processes connected to X server.
- Filtering by state (such as connected, synchronized, SYN-RECV, SYN-SENT,TIME-WAIT), addresses and ports.
- All the tcp sockets in state FIN-WAIT-1 and much more.
Yet another reason to get an open source operating system.
MS-Windows 7 started edition can only runs 3 apps at a time. This is worse than MS-DOS limitations. Is Microsoft nuts? You can install Ubuntu and run as many apps you want for the Internet and office work.
Linux / BSD and UNIX like operating systems includes software from the OpenSSL Project. The OpenSSL is commercial-grade, industry-strength, full-featured Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as general purpose cryptography library.
The Google security team discovered a flaw in the way OpenSSL checked the verification of certificates. An attacker in control of a malicious server, or able to effect a “man in the middle” attack, could present a malformed SSL/TLS signature from a certificate chain to a vulnerable client and bypass validation.
This update has been rated as having important security impact on FreeBSD, all version of Ubuntu / Debian, Red Hat (RHEL), CentOS, Fedora and other open source operating system that depends upon OpenSSL.
Explains how to display multilingual text such as hindi, chinese, japanese, korean etc text on the console using framebuffer, and bterm applications under Fedora / RHEL / CentOS / Debian / Ubuntu Linux.
Spacewalk is an open source (GPLv2) Linux systems management solution. It is the upstream community project from which the Red Hat Network Satellite product is derived.