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24%
Security data analytics and visualization with R
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Rancz Andrei, 123RF.com
Worksheet(patchstats, sheet = 2) 013 sheet3 <- readWorksheet(patchstats, sheet = 3) 014 sheet4 <- readWorksheet(patchstats, sheet = 4) 015 sheet5 <- readWorksheet(patchstats, sheet = 5) 016 sheet6 <- read
24%
Creating an SFTP jail
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Juan Manuel Ordonez, 123RF.com
be replaced solely with the sshd configuration directives shown in Listing 3. Line 16 specifies that SFTP will listen on port 2202 instead of the default SSH port 22. This option is configurable and left ... 3
24%
Measuring the performance of code
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © Lucy Baldwin, 123RF.com
in the standard Python built-ins [2] and in the NumPy library [3]. Figure 1: IPython session comparing two implementations of a round routine. Unless you
24%
Thread processing in Python
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © Christos Georghiou, 123RF.com
): 17 sol[i,0] = 0.0 18 sol[i,ny-1] = 0.0 19 # end for 20 21 # Iterate 22 start_time = perf_counter() 23 --> with pymp.Parallel(6) as p: <-- 24 for kloop in range(1,100): 25 soln = sol
24%
Single sign-on like the big guys
20.06.2022
Home »  Archive  »  2022  »  Issue 69: Terra...  » 
Lead Image © Sergey Nivens, 123RF.com
_DB_PASSWORD=SOME_DB_PASSWORD 15 command: ["start-dev"] 16 17 postgres: 18 container_name: postgres 19 image: postgres:14 20 environment: 21 - POSTGRES_PASSWORD=SOME_DB_PASSWORD 22
24%
Detect failures and ensure high availability
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Tim Foster on Unsplash
a secondary (local) drive with the exact same capacity on each, /dev/sdb: $ cat /proc/partitions|grep sd 8 0 10485760 sda 8 1 1024 sda1 8 2 1835008 sda2 8 3
24%
Server administration using Cockpit
09.08.2015
Home »  Archive  »  2015  »  Issue 28: SSD RAID  » 
Lead Image © Alexandr Marinenko, 123RF.com
the tool licensed under LGPL 2.1 for the similarly named openITCOCKPIT [3]. All Inclusive Red Hat has not even been working on Cockpit for a full two years. The work on it can now be done openly on Git
24%
Automation with Chef
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Photo by Pablo Bustos on Unsplash
necessary. Components A typical Chef environment contains different components depending on the desired scope [3]. The minimum setup that will let you proceed is the Chef Infra Client, which plays the role
24%
Designate provides DNS as a Service in OpenStack
13.02.2017
Home »  Archive  »  2017  »  Issue 37: Distr...  » 
Lead Image © Gabriele Maccaroni, 123RF.com
.g., www.example.com ). To that end, a corresponding A record (or AAAA [quad-A] record for IPv6) must be stored for a domain, and a corresponding PTR record (which refers to the A record) must be created
24%
Asynchronous PostgreSQL
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Fesus Robert, 123RF.com
readable. In JavaScript, that would be comparable to the readystatechange event of the XMLHttpRequest object. Listing 6 burn3.pl 01 #!/usr/bin/perl 02 03 use common::sense; 04 use DBI; 05

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