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Creating KVM machines with BoxGrinder and VMBuilder
31.10.2025
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© yewkeo, 123RF.com
for VirtualBox 14 - virtualpc plugin for VirtualPC 15 16 Available delivery plugins: 17 - s3 plugin for Amazon Simple Storage Service (Amazon S3) 18 - cloudfront plugin for Amazon Simple Storage
99%
openlava – Hot resource manager
31.10.2025
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© Konrad Bak, 123RF.com
tmp DISPATCH_WINDOW # Keywords test1 0 () () () () () () n0001 3 () () () () () () default
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Comparing 5 to 50TB NAS storage boxes
31.10.2025
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© Franck Boston, fotolia.com
extensions who offer lower equipment specs and target a smaller range of applications. When it comes to actual storage, NAS storage systems are not so wildly different (see Tables 1-3 for a comparison
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Security without firewalls
31.10.2025
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© rukanoga, 123RF.com
and then explicitly allow certain users access. It's similar to the deny by default approach I touched on in another article [3]. To achieve this, the /etc/hosts.deny file would look like this: sshd: ALL To allow
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Give your servers the once over with Nmap
31.10.2025
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© ragsac, 123RF.com
.nmap.org (64.13.134.52): Not shown: 994 filtered ports PORT STATE SERVICE VERSION 22/tcp open ssh OpenSSH 4.3 (protocol 2.0) 25/tcp closed smtp
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Netcat – The admin's best friend
31.10.2025
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© Dmitry Rukhlenko, 123RF.com
seconds, for example: # nc -p 16000 -w 30 examplehost.tld 22 If firewalling is in place and you need to originate your connection from a specific IP address to open a port, then you can enter: # nc -s 1.2.3
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Creating and evaluating kernel crash dumps
31.10.2025
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© Giuseppe Ramos, 123RF.com
, the problem of writing a dump to an MD RAID or transferring larger kernel images ultimately proved unfixable. Further attempts with Netdump (Red Hat) or Diskdump [3] in 2002 and 2004 also had only moderate
94%
Dynamic routing in Linux with Quagga
31.10.2025
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© petrol, 123RF.com
doesn't handle the routing (that is still the domain of the underlying operating system kernel); however, it does provide a number of routing protocols – Routing Information Protocol (RIP) [3], RIPng [4
94%
Remote desktop based on HTML5
31.10.2025
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© Phanlop Boonsongsomnukool, 123RF.com
quickly view the password hash at the command line with the md5sum utility: # echo -n | md5sum -t 319f4d26e3c536b5dd871bb2c52e3178 - Next, add this hash value instead of the password
94%
Introduction to OpenMP programming
31.10.2025
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© Frank Rohde, 123RF.com
[3] to solving the questions. Although not the most efficient or fastest method for solving the problem, it does illustrate how one can use OpenMP to parallelize applications. I will be using

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