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  • [x] Creation time: Last year
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  • Article (Print) (136)
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38%
Intruder detection with tcpdump
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Monika Wisniewska, 123RF.com
uses the syntax tcpdump -n -I -s where -n means tcpdump should not resolve IP addresses to domain names or port numbers to service names, -I is the interface to use
38%
Boost performance of your Python programs
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Eric Isselée, 123RF
Python code designed with threading is to use the built-in multiprocessing package included in Python from version 2.6 on. This package provides an API similar to the threading Python module. Although
38%
Manage VMs and Containers with Harvester
06.08.2026
Home »  Archive  »  2026  »  Issue 94 OpenSt...  » 
Lead Image © Lightwise, 123RF.com
into the central Rancher UI. You can now use advanced features in the GUI, such as the automatic deployment of an RKE2 or K3S cluster. Rancher then automatically builds the VMs in Harvester, configures them
38%
New approaches for forensics in cloud environments
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
illustrator, 123RF.com
on the cloud security problem and on corresponding legal issues [1]. This paucity of information was confirmed by other publications [2] [3]. Despite this, the topic is still largely overlooked and a huge amount
38%
Open source data center virtualization with OpenNebula
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
a network. The requirements in terms of dynamic change and availability, however, soon reach their limits with this kind of solution. Besides the rather abstract IaaS services, which you can purchase
37%
Realistic Ceph Performance Tuning Measures
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
Photo by Brenton Pearce on Unsplash
in this case by carrying out sequential writes with default settings. The block size is then 4MB and the queue depth 16 (Figure 1). Figure 1: False positives
37%
Clustering with OpenAIS and Corosync
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
brunoilfo, 123RF.com
ID. Version 3.0 of the cluster suite (in RHEL 6 and Fedora 10 or later), replaces OpenAIS with Corosync [3]. Viewed superficially, not too many changes are seen between the two cluster managers ... 3
37%
Server virtualization with VirtualBox
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Federico Caputo, 123RF.com
apache2-mpm-prefork apache2-utils apache2.2-bin apache2.2-commona pache2-doc apache2-suexec libapache2-mod-php5 libapr1 libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap libapr1 libaprutil1 libaprutil1
37%
Fishing with Remora
09.12.2025
Home »  Articles  » 
 
: WARNING - Couldn't find the GPU memory summary file  Total Elapsed Time           :  0d 0h  3m 15s 650ms ==============================================================================  Sampling Period              : 1 seconds  Report
37%
Checking Kubernetes Security Drift
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
Photo by Bob Jenkin on Unsplash
When you run multiple Kubernetes (K8s) clusters (e.g., production, staging, disaster recovery), you expect them to enforce the same security controls. But do they? Emergency fixes, temporary

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