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15%
Securing email communication with GnuPG
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Photo by Amol Tyagi on Unsplash_Key.jpg
an empty file as a hint for the clients: touch /var/www/virtual/example.org/ .well-known/openpgpkey/policy Make sure you change the path to the DocumentRoot directory to suit your environment. Next
15%
Disaster Recovery for MariaDB and MySQL
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
Photo by Dave Hoefler on Unsplash
-binlog --stop-datetime="2025-08-05 14:59:00" binlog.000203 | mysql -u root -p mysqlbinlog --stop-datetime="2025-08-05 14:59:00" binlog.000203 | mysql -u root -p Make sure the specified time precisely matches
15%
Managing Logs
06.08.2026
Home »  Archive  »  2026  »  Issue 94 OpenSt...  » 
Photo by Conny Schneider on Unsplash
<"Your Password"> | sha256sum | cut -d" " -f1 sudo nano /etc/graylog/server/server.conf root_password_sha2 = password_secret = http_bind_address = 0
15%
Modern network diagnostics
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Lead Image © Paul Aniszewski, 123RF.com
of the network might not be sufficient to identify the root cause. PowerShell Test-NetConnection Test-NetConnection is a versatile and user-friendly network diagnostic cmdlet available in Windows PowerShell that
15%
Hyper-V 3.0 in Windows Server 2012
12.11.2012
Home »  Articles  » 
 
to the network adapter, among other things. Single-Root I/O Virtualization (SR-IOV) is also new in Hyper-V. Under this specification, Hyper-V can also use hardware features of network adapters. To this end
15%
Moving Your Data – It’s Not Always Pleasant
08.05.2013
Home »  HPC  »  Articles  » 
of cores is to run multiple cp commands at the same time, either on specific files or specific subtrees (start at the lowest branch and work upward to root). This isn’t too difficult to script if you have
15%
Five HPC Pitfalls (Part 1)
13.03.2012
Home »  HPC  »  Articles  » 
because the actual software stack typically varies from cluster to cluster. Thus, a vendor will often suggest other software and hardware as the root of a problem – and vice versa from other hardware
15%
Stopping Side Channel Attacks
16.10.2012
Home »  Articles  » 
 
for the present Typo3 instance simply by evaluating the HTTP header order of the Typo3 back end (Table 1). The root cause of this error is that Typo3 separates
15%
Understanding Autodiscovery
20.12.2012
Home »  Articles  » 
 
: Nmap Command root@sandbox:~# nmap -v -A www.haribo.de ... Host www2.haribo.com (213.185.81.67) is up (0.011s latency). Interesting ports on www2.haribo.com (213.185.81.67): Not shown: 995 closed ports
15%
SHA-3 – The New Hash Standard
15.04.2013
Home »  Articles  » 
 
of researchers presented an attack against MD5 signatures at 25C3, the Chaos Computer Club’s annual congress. This attack allowed them to create a spoofed root certificate on an SSL certificate authority

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