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25%
Installing and operating the Graylog SIEM solution
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Leo Blanchette, 123RF.com
], and MongoDB 3.6 [3]. If not already present, installing Java (as root or using sudo) before Elasticsearch and MongoDB is recommended: yum install java-1.8.0-openjdk-headless.x86_64 You should remain root
25%
Pushing Raspberry Pi storage to its limit
04.12.2024
Home »  Archive  »  2024  »  Issue 84: Non-R...  » 
Lead Image © Lucy Baldwin, 123RF.com
capable of read speeds up to 4,900MBps (and up to 3,700MBps write speed), with total capacity of 512GB [6] (about $70). The unit is rated at a staggering 400K read and 900K write I/O operations per second
25%
Swagger and OpenAPI Specification for documents
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © smeagorl, 123RF.com
the Swagger tools in the build process; the documentation and client SDK are automatically kept up to date. Swagger, developed by SmartBear [6], comprises in part a comprehensive specification [2
25%
Automation with Chef
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Photo by Pablo Bustos on Unsplash
on the Chef Infra Server, which can already manage around 100,000 nodes as a standalone installation. The previously mentioned cookbooks, like many other tools, follow a standardized structure that varies
25%
Develop your own scripts for Nmap
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Raman Maisei, 123RF.com
something like Listing 2. Listing 2 Sample Output Starting Nmap 6.47 (http://nmap.org) at 2015-03-12:00:00 CET Nmap scan report for targethost (192.168.1.100) Host is up (0.023s latency). r
25%
Intruder Detection with tcpdump
28.11.2011
Home »  Articles  » 
 
of a snort log. You have the following information: The IP address of the Linux system is 192.168.100.45; an attacker got in using a WU-FTPD vulnerability and deployed a backdoor. What can you find out about
25%
New Monitoring Tools
14.04.2021
Home »  HPC  »  Articles  » 
will see a screen like that shown in Figure 6. Notice that a small window opens just above the process table listing CPU usage, memory usage, the user, and more about that process
25%
Server administration with Cockpit
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Photo by Joshua J. Cotten on Unsplash
the graphical interface or with text files in JSON format [6] stored in the /etc/cockpit/machines.d/ directory. A configuration file would resemble Listing 1: "address" can be either the IP address or the DNS
25%
A new approach to more attractive histograms in Prometheus
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Markus Winkler on Unsplash
percentiles. To do this, data is divided into 100 distribution areas. The x th percentile is then the value below which x percent of the observations fall. The classical histogram metric divides a range
25%
ASCII-based monitoring tools
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Lead Image © tele52, 123RF.com
; you will see a screen like that shown in Figure 6. Notice that a small window opens just above the process table listing CPU usage, memory usage, the user, and more about that process

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