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Hardware

Linux and Unix Test Disk I/O Performance With dd Command

How can I use dd command on a Linux to test I/O performance of my hard disk drive? How do I check the performance of a hard drive including the read and write speed on a Linux operating systems?
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Sysadmin because even developers need heroes!!!

How To Stress Test CPU and Memory (VM) On a Linux and Unix With Stress-ng

I want test my Linux, OpenBSD, FreeBSD and Unix-like server entirely for high load and monitoring the health under stress. How can I stress out my CPU, memory, I/O, and disk stress and more with stress test tool on a Linux or Unix-like systems?
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FreeBSD 10: Apply Binary Updates To Keep Base System Up To Date

I know keeping a FreeBSD server up to date is a very important. How can I apply binary system patches and updates to a new installation of FreeBSD 10 server?
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Fedora Linux 20: Install Broadcom-wl STA BCM43228 Wireless Driver

I‘m using Dell / Lenovo laptop with Broadcom’s IEEE 802.11a/b/g/n based wireless card. How can I install Broadcom-wl STA BCM4322 Wireless driver on a Fedora Linux version 20?
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Mac OS X: Force Quit An Unresponsive Full Screen Application Shortcut Key

Sometime my VLC application gets crashed on a Mac OS X system. The screen goes blank and VLC stays hang running on my desktop or MacBook. How can I solve this issue and quit an unresponsive VLC application on a Mac OS X without a hard reboot?
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FreeBSD 9.1: HowTo Load a Kernel Module

I am a new FreeBSD Unix users. I am using FreeBSD version 9.1 and how do I load a kernel module called drm using command line option?
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Linux: Dell Laptop Fan Control And Get CPU Temperature

I have installed Debian or Ubuntu Linux on Dell Inspiron / Latitude / Precision / Vostro laptop. How do I see the current CPU temperature? How do I control and see fan status on Dell laptop?
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Linux Command To Find SATA Link Speed Such as 1.5 / 3.0 / 6.0 Gbps [ Hard Disk ]

How do I find out my SATA link speed? How do I make sure my sata hard disk is working at 6Gbps speed and how do I verify this on a Linux server running on HP or IBM amd64 hardware?
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HowTo: Linux Show List Of Network Cards

How do I display a list of all network cards under Linux operating systems?
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Linux: Find Number of CPU Cores Command

How do I find out the number of CPU cores available under HP x86_64 Linux serer running on RHEL / Debian Linux 6.x?
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