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13%
Configuration management and automation
17.06.2017
Home »  Archive  »  2017  »  Issue 39: Conta...  » 
Lead Image © Valerijs Kostreckis, 123RF.com
computers directly on Amazon. The Rundeck wiki on GitHub [2] offers some tips, such as how to scan a network with Nmap or use a script that produces a list of nodes. In addition to storing a configuration
13%
Collecting application logfiles with Kubernetes
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Lead Image © bowie15, 123RF.com
are the classic example of a modern scale-out architecture. A number of containers handle the database back end, and still others host a classic network filesystem for static content. A scaling group runs
13%
Coming to grips with grep
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Andrey Lavrushov, 123RF.com
of using software to perform the task? Back in the realm of the command line, you might have come across the excellent and regular-expression-friendly network grep , or ngrep [3], which offers features
13%
Kubernetes Auto Analyzer
05.10.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
to suit their own cloud environments. For example AWS might point the default NTP (Network Time Protocol) servers on a Linux machine image to an internal AWS time server, which lessens the need to talk
13%
Detect failures and ensure high availability
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Tim Foster on Unsplash
of internal hardware and path failures – redundant memory, CPUs, network interfaces, power supplies, and more. However, that type of functionality also came at a much higher cost. A level of complexity also
13%
Command-line tools for the HPC administrator
22.12.2017
Home »  Archive  »  2017  »  Issue 42: Secur...  » 
Lead Image © Vasyl Nesterov, 123RF.com
– including passwords – from the host machine to the target machine with no encryption. Therefore, a very simple network sniff could gather lots of passwords. Anyone who used rsh, rlogin, or telnet between
13%
Auditing Docker Containers in a DevOps Environment
27.12.2017
Home »  Archive  »  2018  »  Issue 43: Real...  » 
Photo by Frank McKenna Unsplash.com
with something. The syscalls man page reports, “The system call is the fundamental interface between an application and the Linux kernel.” Simply think of every task, such as opening a socket for network
13%
Investigating container security with auditd
18.02.2018
Home »  Archive  »  2018  »  Issue 43: Real...  » 
Lead Image, Frank Mckenna, @unsplash.com
between an application and the Linux kernel." Simply think of every task, such as opening a socket for network communications, mounting a disk volume, or even creating a directory, as needing some form
13%
Application security testing with ZAP in a Docker container
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image © Maxim Maksutov, 123RF.com
ME!" citizenstig/nowasp As you will note, you're opening up at least one low-level, privileged network port. Don't be surprised if you have to sudo or become root to run the command. Figure 1 shows
13%
Monitoring HPC Systems
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Alexander Rivosh, 123RF.com
of the memory is being used for user applications, and what the network is doing and whether it is being used for applications. This information can help you understand where you need to make changes

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