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Securing email communication with GnuPG
07.10.2025
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Photo by Amol Tyagi on Unsplash_Key.jpg
) provides a simple and secure way to make public keys for email addresses available over HTTPS. The underlying standard was first implemented in GnuPG version 2.1.12 and has been enabled by default since
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Ceph Dashboard at a Glance
02.06.2026
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Lead Image © Prin Pattawaro, 123RF.com
://docs.ceph.com/en/latest/rados/operations/crush-map/ CephX: https://docs.ceph.com/en/latest/rados/configuration/common/#authentication S3: https://aws.amazon.com/s3/ Swift: https://docs.openstack.org/swift/latest/ radosgw-admin: https
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What tools do intruders use to
30.11.2025
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© Wojciech Kaczkowski, 123RF.com
, name servers, and network hosts accessible through the Internet. The popular whois service also offers a means for discovering domain information. The Nmap scanner's -sL option (nmap -sL) performs
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Expand your sphere with a piece of Google
30.11.2025
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© artida, 123RF.com
Amazon started converting its excess computational power to cash some time ago. Under such names as EC2 (Elastic Computing Cloud), S3 (Simple Storage Service), and SimpleDB, the book and coffee
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News for Admins
07.10.2025
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-driven evolution, the conflicts that almost tore it apart, and the language's impact on … well … everything." The documentary notes that "what began as a side project in Amsterdam during the 1990s became
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Verifying TLS Certificates
06.08.2026
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Lead Image © Christos Georghiou, 123RF.com
://github.com/square/certigo/releases/download/v1.17.1/certigo-linux-amd64 chmod +x certigo-linux-amd64 mv certigo-linux-amd64 /usr/bin/certigo You can also install at the Windows command line now that curl is part of the standard package: curl
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Network backup with Burp, Obnam, and Backshift
30.11.2025
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© Sergey Peterman, 123RF.com
the Ubuntu Precise (12.04) Universe repository and as a package for Debian Sid. To install the server on Linux, you first need to install the necessary packages; the example here uses an Ubuntu distribution
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The RADOS object store and Ceph filesystem
30.11.2025
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© Brigida Soriano, Fotolia.com
Cloud computing is, without a doubt, the IT topic of our time. No issue pushes infrastructure managers with large-scale enterprises as hard as how to best implement the cloud. The IaaS principle

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