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96%
Time flies, but it can still be measured
31.10.2025
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4 block output operations 0 messages sent 0 messages received 0 signals received 4 voluntary context switches 6 involuntary context switches ... 12
96%
New Products
31.10.2025
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-port, hot-swappable 6Gbps SAS disk drives, dual controllers with up to 180TB of capacity, and 8GB of cache in a 2U 19-inch rackmount enclosure. Additionally, Storwize V3700 features a new FlashCopy function ... 12
96%
Dispatches from the world of IT
31.10.2025
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. The TOP500 list also provides insight into which technologies are leading the way in the world of supercomputing. According to the website, systems with multicore processors dominate the list, with 84.6 ... 12
96%
Netcat – The admin's best friend
31.10.2025
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© Dmitry Rukhlenko, 123RF.com
of things relating to TCP and UDP since its inception. These days, it handles IPv6 as well as IPv4 beautifully. Its astounding versatility means that integrating it with scripts is a veritable piece of cake ... 12
96%
Using Expect scripts to automate tasks
31.10.2025
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© Kheng Ho Toh, 123RF.com
12 # quickly" after prompts. If you find your new script hanging up at 13 # one spot, try adding a short sleep just before the previous send. 14 # Setting "force_conservative" to 1 (see below) makes ... 12
29%
Give your servers the once over with Nmap
31.10.2025
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© ragsac, 123RF.com
.34.56.78 -oN filename If you want screeds of detail, then it's also simple just to add the verbosity switch (twice for even more detail): # nmap -vv -sS 12.34.56.78 To truly avoid detection (in conjunction
27%
Creating and evaluating kernel crash dumps
31.10.2025
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© Giuseppe Ramos, 123RF.com
of a full-fledged VMware workstation installation. Users who are prepared to experiment can simply copy the tool to a computer of their choice and convert the image there. The vmss2core -N6
27%
A Btrfs field test and workshop
31.10.2025
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© Adrian Hillman, 123RF.com
, followed by an installation guide using a virtual instance of Ubuntu 12.04 as an example. Then, I'll demonstrate the main administration tool. Following this, the root filesystem on a test system
25%
Create a high availability VM with  DRBD9  and Reactor
07.10.2025
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Photo by Emma Simpson on Unsplash
consuming and expensive, which is what prompted Linbit to build an alternative to Pacemaker that specializes in handling simple use cases: DRBD Reactor [6]. In this article, I describe how DRBD and DRBD
25%
Programming with Go
31.10.2025
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© Dimitar Dimitrov, 123RF.com
recent Linux distributions already have it in their package management systems. To install on Ubuntu 12.04, type: apt-get install golang Other operating systems, including Mac and Windows, have binary

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