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100%
Assess USB performance while exploring storage caching
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Lucy Baldwin, 123RF.com
disk reads: 1306 MB in 3.00 seconds = 434.77 MB/sec federico@cybertron:~$ sudo hdparm -W /dev/sdb /dev/sdb: write-caching = 1 (on) federico@cybertron:~$ sudo hdparm -W 0 /dev/sdb /dev/sdb: write ... 48
97%
Comparing 5 to 50TB NAS storage boxes
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Franck Boston, fotolia.com
disk fails, the sum of all remaining bits reveals whether the missing disk would need to have a 0 or a 1 to meet the even or odd status stored on the parity disk. The advantage of RAID 3 is that you ... 12
96%
Resource Management with Slurm
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Vladislav Kochelaevs, fotolia.com
In previous articles, I examined some fundamental tools for HPC systems, including pdsh [1] (parallel shells), Lmod environment modules [2], and shared storage with NFS and SSHFS [3]. One remaining ... 48
96%
Symbolic mathematics with Python's SymPy library
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Buchachon Petthanya, 123RF.com
to explore heat conduction calculations. All the examples presented here use the Spyder 3.2.8 Python development environment (Anaconda 5.2.0) on Mint 19.0 Xfce. Because the full code is too long for a printed ... 48
96%
Exploring SQL Server on Linux
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © yewkeo, 123RF.com
is the distribution must include systemd [3]. However, if you really want to stay safe, you might want to rely on one of the three distributions officially supported by Microsoft: RHEL 7.3+ SELS v12 SP2 ... 48
95%
Installing and operating the Graylog SIEM solution
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Leo Blanchette, 123RF.com
], and MongoDB 3.6 [3]. If not already present, installing Java (as root or using sudo) before Elasticsearch and MongoDB is recommended: yum install java-1.8.0-openjdk-headless.x86_64 You should remain root ... 48
95%
Workflow-based data analysis with KNIME
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Andrea De Martin, 123RF.com
Gateway Initiative (OSGI) technology. The latest version (version 3.7) is available at the project website [1], where you will also find other introductory materials, including blogs, videos, and sample ... 48
95%
Improved defense through pen testing
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image Photo by Simeon Jacobson on Unsplash
of the more popular models are the Cyber Kill Chain© (copyright Lockheed Martin) [2] and the MITRE ATT&CKTM model [3]. Rather than say that all models have their strengths and weaknesses, I would argue ... 48
95%
D-Wave's Murray Thom discusses the present and future of quantum computing.
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
increasingly difficult problems" explained Murray Thom, director of Quantum Cloud Services at D-Wave. Classical computers use bits of information that live in one state (0 or 1) at a time. A quantum computer ... 48
95%
Using Expect scripts to automate tasks
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Kheng Ho Toh, 123RF.com
42 spawn $env(SHELL) 43 match_max 100000 44 expect -exact "]0;khess@trapper: ~khess@trapper:~\$ " 45 send -- "ssh aspen\r" 46 expect -exact "ssh aspen\r 47 khess@aspen's password: " 48 send ... 12

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