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17%
Arp Cache Poisoning and Packet Sniffing
05.09.2011
Home »  Articles  » 
 
can see how the arp cache poisoning works: $ sudo nemesis arp -v -r -d eth0 -S 192.168.1.2 \ -D 192.168.1.133 -h 00:22:6E:71:04:BB -m 00:0C:29:B2:78:9E \ -H 00:22:6E:71:04:BB -M 00:0C:29:B2:78:9E
17%
Using rsync for Backups
07.01.2014
Home »  Articles  » 
 
a great deal of power in a few lines: rm -rf backup.3 mv backup.2 backup.3 mv backup.1 backup.2 cp -al backup.0 backup.1 rsync -a --delete source_directory/ backup.0/ To better understand the script, I
17%
Parallel Python with Joblib
08.04.2014
Home »  HPC  »  Articles  » 
| elapsed: 0.0s remaining: 4.5s [Parallel(n_jobs=2)]: Done 198 out of 1000 | elapsed: 1.2s remaining: 4.8s [Parallel(n_jobs=2)]: Done 399 out of 1000 | elapsed: 2.3s remaining: 3.5s
17%
Using loop directives to improve performance
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image © orson, 123RF.com
of an application allows it to run faster and scale better than serial applications (see Amdahl's law [3]). Today's processors have multiple cores, and accelerators such as GPUs have thousands of lightweight cores
17%
Tools that extend Bash scripting
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © Laschon Maximilian, 123RF.com
that the top left of the screen is (0,0) tput cup 3 15 # Set the foreground color using an ASCII escape tput setaf 3 # Write a "title" to the screen echo "Title of the company" tput sgr0 # Write a menu title
17%
OpenStack installation with the Packstack installer
16.08.2018
Home »  Archive  »  2018  »  Issue 46: CMS S...  » 
Lead Image © Tom Wang, Fotolia.com
, Packstack [1] is used for quickly setting up development or demonstration cloud environments. In this article, I present an example of an IaaS-type RDO [2] OpenStack Pike [3] installation using the Packstack
17%
Configuring X Window input and output devices
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Photo by Ilya lix on Unsplash
1: +DP-2-2 1080/510x1920/287+0+0 DP-2-2 2: +DP-2-3 1920/598x1080/336+1080+0 DP-2-3 You can use xrandr -q to see which modes the individual devices support. You can then set the desired mode
17%
Read-only File Compression with SquashFS
14.06.2017
Home »  HPC  »  Articles  » 
example illustrating the change in file size: $ ls -lsah FS_scan.csv  3.2M -rw-r--r-- 1 laytonjb laytonjb 3.2M 2014-06-09 20:31 FS_scan.csv $ gzip -9 FS_scan.csv  $ ls -lsah FS_scan.csv.gz  268K
17%
OpenACC – Parallelizing Loops
09.01.2019
Home »  HPC  »  Articles  » 
as shown in Table 3, each gang will execute each loop redundantly (i.e., each gang will run the exact same code). These gangs are executed at the same time but independently of one another (Figure 2). Table
17%
Delegate and restrict authorizations in Azure AD
05.02.2023
Home »  Archive  »  2023  »  Issue 73: Datab...  » 
Lead Image © lassedesignen, 123RF.com
a user or group in Azure AD, use the cmdlet with the ObjectID parameter Get-AzureADUser -ObjectID 3b47a729-16c1-4be1-9ee2-7f3bd00a346b You can retrieve the ObjectID for each user after entering Get

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