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Deep System Discovery on your Linux Server With /proc
Deep System Discovery on your Linux Server With /proc
Dec 10, 2010, 19 :34 UTC (0 Talkback[s]) (181 reads)
(Other stories by Juliet Kemp)
"/proc is a virtual filesystem generated at boot and updated regularly by the kernel. With /proc you can investigate exactly what hardware your Linux kernel sees, what processes it is running, boot options, and also manipulate kernel events.
"With Linux, everything is a file ? and that includes devices, processes, and system information. /proc allows you to take a look at these 'files'. /proc (short for "process filesystem") isn't 'real'; it's a virtual filesystem, generated at boot and updated regularly by the kernel. Instead of storing information on disk, when you look at something in /proc, it fetches the information from the kernel to output as a file. This is great both for system communication (utilities can operate in userspace, rather than in kernel space), and for investigating your system's innards.
"/proc and processes
"If you type ls /proc, you'll see a set of numbered directories. These are your processes: one directory per process ID. Look at your process list with ps -A, and pick one to investigate. (Note that unless you have root/sudo access, you're best off choosing a process that you own.) Here's a sample process from my ps output:"
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Fanless barebone server offers dual-core Atom for $260
Fanless barebone server offers dual-core Atom for $260
Dec 7, 2010, 00 :04 UTC (0 Talkback[s]) (930 reads)
(Other stories by Eric Brown)
"Habey announced a 1U, barebone server featuring Intel's dual-core 1.8GHz Atom D525 processor, starting at $260. Able to run on 25 Watts, the EPC-6566 offers up to 2GB of DDR3 RAM, PCI Express and PCI expansion, dual HDD bays, two gigabit Ethernet ports, plus serial and USB connectivity, says the company.
"The 17 x 9.8 x 1.75-inch EPC-6566 is now available in single quantities at Amazon.com, starting at $260. As a barebone system, it ships without storage, memory, or a pre-installed operating system, but it supports Linux and several Windows versions, says Habey.
"The EPC-6566 is said to be usable as a network video recorder (NVR), or any other embedded application demanding rackmount support, low noise, and low power consumption. The system can run fanlessly with less than a 25 dB noise level, and runs on under 25 Watts, claims the company."
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