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17%
Port Knocking
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © rasslava, 123RF.com
to its GPRS and 3G customers, this approach opened up our servers to many more IP addresses than in our old system, with its 10 or 20 authorized IP addresses at the company offices and at the homes
17%
Why Good Applications Don’t Scale
13.10.2020
Home »  HPC  »  Articles  » 
the asymptote is the inverse of the serial portion of the code, which controls the scalability of the application . In this example, p = 0.8 and (1 – p ) = 0.2, so the asymptotic value is a = 5. Further
17%
Run rootless Podman containers as  systemd services
26.01.2025
Home »  Archive  »  2025  »  Issue 85: Monit...  » 
Photo by Geeky Shots on Unsplash
container images, and podman pull nginx:alpine downloads the nginx:alpine image from one of the registered container repositories. A Podman Compose [3] solution also processes docker-compose.yml files
17%
Using Expect scripts to automate tasks
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Kheng Ho Toh, 123RF.com
certain things. Two reasons a script 08 # might fail are: 09 # 10 # 1) timing - A surprising number of programs (rn, ksh, zsh, telnet, 11 # etc.) and devices discard or ignore keystrokes that arrive "too
17%
Hands-on test of Windows Subsystem for Linux
22.12.2017
Home »  Archive  »  2017  »  Issue 42: Secur...  » 
Lead Image Craig Whitehead on Unsplash
(Figure 2). Once the installation is complete, type bash to display the prompt (Figure 1, bottom). Like all applications under Windows, the bash shell shown in Figure 3 is launched from the Start menu
17%
Fixing Ceph performance problems
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Lead Image © Kritiya Sumpun, 123RF.com
storage by splitting up these files and putting them back together again later. When the user uploads a file to RADOS, the client breaks it down into several 4MB objects before uploading, which RADOS
17%
Security as Code
04.10.2018
Home »  Archive  »  2018  »  Issue 47: Findi...  » 
Lead Image © bluebay, 123RF.com
-popular Travis CI [3] or GitLab CI [4]), which integrates easily with tools you might normally use manually. These tools might be used for database hacking, penetration testing, open network port probing
17%
Swagger and OpenAPI Specification for documents
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © smeagorl, 123RF.com
) for client programs on request. Division of Responsibilities What initially sounds complicated proves to be remarkably simple in practice [3]. First, the developer describes the feature set of their REST API
17%
Forensic Analysis on Linux
30.04.2013
Home »  Articles  » 
abuse of these devices by malware, it was necessary to disable this kind of access [3]. To remove this restriction, you need to rebuild the kernel without CONFIG_STRICT_DEVMEM , but this approach
17%
Optimally combine Kubernetes and Ceph with Rook
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © satori, 123RF.com
. An alternative to Docker is CRI-O [3], which now officially supports Kubernetes. To use it on Ubuntu 18.04, you need to run the commands in Listing 1. As a first step, you set several sysctl variables; the actual

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