Linux
Using the ‘ping’ command
Ping verifies IP-level connectivity to another TCP/IP computer by sending Internet Control Message Protocol (ICMP) Echo Request messages. The receipt of corresponding Echo Reply messages are displayed, along with round-trip times. Ping is the primary TCP/IP command used to troubleshoot connectivity, reachability, and name resolution.
Examples of Ping
Windows
ping google.com
Pinging google.com [64.223.167.99] with 32 bytes of data:
Reply from [...]
Acer launches Aspire Netbook
Acer Australia has recently launched the Aspire One, its first 8.9″ Netbook. Powered by the latest Intel Atom processor, Aspire One is an internet device designed to make online activities fast, simple and convenient.
Aspire One features an 8.9″ CrystalBrite LED backlit display (resolution of 1024×600 pixels), CrystalEye webcam and 802.11b/g WiFi built-in as standard for [...]
IBM Supercomputer Dual Boots Windows and Linux
IBM has built the biggest ever dual-boot Windows/Linux HPC system for a consortium of Swedish research groups and universities.
The record-chasing firm will apparently unveil its 5,376 Intel Xeon quad-core processor blade system later on today. Computer World claims the system is able to reach an impressive 46 sustained teraflops on a beta version of Windows [...]
Debian, Ubuntu Flawed For Two Years
A research posting to the Debian security list last week has led to the confirmation of a serious hole in two flavours of the Open Source Linux operating system.
Frederick Lee, a researcher at insecurity company Fortify, said that the flaw, which affects Ubuntu as well as Debian, had been “seriously underestimated ” as it makes [...]
OpenSSL Bug Found in Debian Linux
Debian Linux got a bit of a black eye this week with the announcement that a nasty cryptographic vulnerability exists in its version of the OpenSSL package.
Debian, especially its stable branch, is widely regarded as perhaps the most bulletproof Linux distribution.
Debian also has the not undeserved reputation of being difficult for those new to Linux [...]
Fedora 9 Released
Fedora 9, the latest release from the Fedora Project, is available for download since yesterday. The free, open source Linux operating system sponsored by Red Hat, promises to include significant new versions of many key components and technologies.
The following Release Notes provide an overview of the important changes from the last release of Fedora. [...]
25 Year Old BSD Bug Found and Fixed
A Unix developer has discovered and fixed a filesystem bug in Berkeley Software Distribution, a widely used, open-source, Unix-like operating system, discovering in the process that the bug was at least 25 years’ old.
BSD’s variants include OpenBSD, FreeBSD and NetBSD, and it forms the basis of Apple’s Mac OS X operating system. All BSD derivatives [...]
Torvalds Releases Linux Kernel 2.6.25
Linus Torvalds has released the latest version of the “stable” Linux kernel, version 2.6.25, which includes changes to Wi-Fi support, virtualisation, real-time scheduling and file systems.
The kernel, which was released approximately 10 weeks after its predecessor, includes broader Wi-Fi hardware support and the integration of more Wi-Fi drivers, according to Linux developers. Among the drivers [...]
Real-time Linux for US Navy Weapons Systems Gets An Upgrade
Yesterday, a supplier of Linux for driving time critical applications — such as intercepting ballistic missiles — released RedHawk Linux 5.1, its latest “real-time” operating system distribution.
Concurrent is a Linux distributor specializing in real-time technologies that can be utilized by some very serious businesses. For example, Concurrent is the key supplier of RedHawk Linux for [...]
Windows Server Reliability Down in 2007
The downtime experienced by Windows Server 2003 increased 25 percent to nine hours per server per year, while the reliability of mainstream server-based Linux distributions improved significantly, according to a Yankee Group survey.
The 2007-2008 Global Server Operating System Reliability Survey presents a substantially different picture compared to the results of the last such survey in [...]
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