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17%
Embarrassingly parallel computation
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Lucy Baldwin, 123RF.com
simulations. sudo apt install openmpi-bin openmpi-common openmpi-doc libopenmpi-dev The code as listed runs 1 million iterations, which I can launch over two Xeon Broadwell cores, mpiexec -n 2 mpi
17%
A watchdog for every modern *ix server
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Photo by Sudhith Xavier on Unsplash
up a container machine running Monit. Listing 1 [2] creates the Ubuntu 22.04 LTS base image used to create further images for the test container machines. To generate the base image, go to your
17%
Have a Bash with the Zing network utility
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Photo by Micah Tindell on Unsplash
for Internal Network zing.bash -c 4 -op 2 -p 80,443 10.0.0.23 ZING:80/ 10.0.0.23 / Warning: Error: on 80 is: Active. Continue. Port: 80: op 1.1. 10.0.0.23 80 Time: 28 ms. Port: 80: op 1.2. 10.0.0.23 80 Time
17%
Interprocess communication essentials in Perl
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Carsten Reisinger, 123RF.com
to send STDOUT to a file or you can use the notation $this_value = `this_program 1>&2`; to catch a program's STDOUT and STDERR. This example shows the backtick method, but you can also use the open
17%
SHA-3 – The new hash standard
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
© Warakorn Harnprasop, 133RF.com
enable TLS 1.2 – given OpenSSL 1.0.1 and a recent 2.2 or 2.4 version of the Apache web server – using the SSLProtocol configuration option. Listing 1 provides a potential server configuration. Listing ... NIST has chosen the Keccak algorithm as the new cryptographic hash standard but, in real life, many users are still waiting to move to its predecessor SHA-2.
17%
Network monitoring with Icinga and Raspberry Pi
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © AndreaDanti, 123RF.com
use generic-service 21 host_name w2k12srv 22 service_description Memory Usage 23 check_command check_nt!MEMUSE!-w 80 -c 90 24 } 25 define service{ 26
17%
Port Knocking
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © rasslava, 123RF.com
seq_timeout = 10 08 tcpflags = syn 09 command = /usr/sbin/iptables -A INPUT -s \ %IP% -p tcp --dport 22 -j ACCEPT 10 11 [closeSSH] 12 sequence = 9000
17%
Warewulf Cluster Manager – Master and Compute Nodes
22.05.2012
Home »  HPC  »  Articles  » 
.x86_64 0:1.9-22.el6_2.1 libacl.x86_64 0:2.2.49-6.el6 libattr.x86_64 0:2.4.44-7.el6 libblkid.x86_64 0:2.17.2-12.4.el6 libcap.x86_64 0:2
17%
Getting started with AI
26.01.2025
Home »  Archive  »  2025  »  Issue 85: Monit...  » 
Lead Image © Lightwise, 123RF.com
this second 2D convolution layer, you have another batch normalization layer followed by a new layer type, MaxPooling2D: model.add(layers.BatchNormalization()) model.add(layers.MaxPooling2D(pool_size=(2,2
17%
Security data analytics and visualization with R
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Rancz Andrei, 123RF.com
(plyr) 06 library(ggplot2) 07 08 setwd("~/R/RFI") 09 rfi <- read.csv("rfi-extract-July2011.log",header=TRUE, sep=",") 10 11 ## read in data to frame 12 data <- data.table(rfi) 13 ct <- count

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