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54%
Setting up SELinux policies
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Agustin Paz, 123RF.com
will be looking at the options for distributing a new policy. In both of the cases I've mentioned, the development process results in a new policy package. The package uses a binary format and must be loaded
54%
Moving Your Data – It’s Not Always Pleasant
08.05.2013
Home »  HPC  »  Articles  » 
, driving them to the new location, unloading them, and ultimately unpacking everything. I’ve done it several times in my life and, to me, it’s neither fun nor pleasant. One of my friends loathes moving so
54%
Security data analytics and visualization with R
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Rancz Andrei, 123RF.com
uncover new opportunities for awareness and visualization (see the "Coursera Data Science Specialization" box). I've read several books while undertaking this endeavor, and one of the best and most
54%
Moving your data – It's not always pretty
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
digifuture, 123RF
, driving them to the new location, unloading them, and ultimately unpacking everything. I've done it several times and, to me, it's neither fun nor pleasant. A friend of mine loathes moving so much that he
53%
HPC Monitoring: What Should You Monitor?
15.01.2014
Home »  HPC  »  Articles  » 
these problems come about (and they will come about). Software Monitoring So far I’ve only focused on hardware monitoring – specifically, the processor, memory, and network. At some level, however, you need
53%
Understanding Privilege Escalation
13.12.2011
Home »  Articles  » 
 
. When in doubt, don't hesitate to use the help command. In the information gathering phase, I've already obtained a list of running services, so I can start searching for matching exploits. To do that
53%
URL Tricks with htaccess
02.02.2012
Home »  Articles  » 
 
URL.com, Bitly, or Google URL shortener to shrink unsightly and unmanageable URLs to something that’s more suitable for email or Twitter. I have found that some of these services let you add a custom prefix
53%
Benchmarks Don’t Have to Be Evil
12.03.2015
Home »  HPC  »  Articles  » 
. I’ve found they really stress the CPU, memory bandwidth, and network in various ways. OpenMP and MPI versions of NPB “classes” allow you to run different data sizes. Plus, they are very easy to build
53%
Nmon: All-Purpose Admin Tool
17.12.2014
Home »  HPC  »  Articles  » 
The most common user complaint I receive is poor or unexpected performance by a user application, so I’ve been spending some time looking at command-line tools that can help me understand what
53%
Improved Performance with Parallel I/O
24.09.2015
Home »  HPC  »  Articles  » 
Lately I’ve been looking at application timing to find bottlenecks or time-consuming portions of code. I’ve also been reading articles about improving applications by parallelization. Once again

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