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17%
Managing Linux Memory
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © J.R. Bale, 123RF.com
be initiated via options for file operations using the O_DIRECT option for open() or DONT_NEED with fadvise(), for example. Unfortunately, very few applications use direct I/O, and because a single
17%
A script for strict packet filter updates
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © french 03, photocase.com
are used to protect the server from unauthorized access. Public blacklists (e.g., OpenBL.org [1]) distribute the IP addresses of honeypot systems that help document attacks and distribute the IP addresses
17%
Supporting WebRTC in the enterprise
09.06.2018
Home »  Archive  »  2018  »  Issue 45: Autom...  » 
Lead Image © pat138241, 123RF.com
to for signaling (Figure 8) and open up the firewall accordingly. The WebSocket Secure (WSS) default port is 443, so this should work in most cases. Web proxies should support the HTTP CONNECT method on port 443
17%
Border Gateway Protocol
30.01.2024
Home »  Archive  »  2024  »  Issue 79: Monit...  » 
Lead Image © Rachael Arnott, 123RF.com
Information Protocol (RIP), Open Shortest Path First (OSPF) protocol, or Enhanced Interior Gateway Routing Protocol (EIGRP) for internal networks, BGP is the only Exterior Gateway Protocol (EGP). As such
17%
Securing the container environment
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © zeferli, 123RF.com
. Understanding the tactics used is particularly beneficial for blue team members tasked with defense and implementing security controls. Main Entry Points To compromise containers, a door has to be open
17%
Automated Azure Kubernetes Service cluster builds
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Kittipong Jirasukhanont, 123RF.com
a web browser to open the page https://microsoft.com/devicelogin and enter the code GY2PXXXX to authenticate. Enter your details in the browser when prompted and prepare to be amazed at how quickly you
17%
Resolving problems with DNS, Active Directory, and Group Policy
17.04.2017
Home »  Archive  »  2017  »  Issue 38: .NET...  » 
Lead Image © Fernando Gregory, 123RF.com
to analyze; then, open a command prompt with administrator privileges and change to the directory in which you installed the tool. Use the following command to monitor Group Policy: gplogview -o gpevents
17%
Three full-text desktop search engines
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Photo by Lucas Gallone on Unsplash
tools. For example, if you open the default file manager, you can use its search function to extend the search to file content. As Figure 1 shows, you can switch between File Name and Full Text while
17%
Configuring the JBoss application server
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
HONGQI ZHANG, 123RF.com
, two widely used heavyweights, IBM WebSphere and BEA WebLogic, support this specification. JBoss provides a Java application server as an open source product under the GNU Lesser General Public License
17%
Setting up your own NAS with FreeNAS 8.0.2
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Vitalii Gulenok, 123RF.com
, a cluster for test purposes, for training, or to document the installation of clusters in the data center. In the open source world, the tool of choice here is FreeNAS, which lets administrators quickly set

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