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Kolab iRony with CalDAV and CardDAV support
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Pablo Hidalgo, 123RF.com
installation of Kolab 3.0 and later is a matter of one or two cups of coffee and does not impose too many requirements on the admin. The Kolab developers recommend a recent CentOS (preferably 6.4) as the basis
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Reducing the Attack Surface in Windows
04.12.2024
Home »  Archive  »  2024  »  Issue 84: Non-R...  » 
Photo by Sander Sammy on Unsplash
No a8f5898e-1dc8-49a9-9878-85004b8a61e6 Blocks Win32 API calls from Office macros No 92e97fa1-2edf-4476-bdd6-9dd0b4dddc7b Deploys advanced protection against ransomware
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Linux small business servers compared
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Umzugskartons, fotolia.
of Ubuntu 10.04 LTS, whereas v3.0 [5] makes the jump to Ubuntu 12.04 LTS. As an alternative, the beta version 2.3 is available for download. Building Under Ubuntu Targeted at small and medium
10%
Analyzing tricky database problems
14.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Photo by Quino Al on Unsplash
. The infrastructure also includes three LDAP servers, six NFS servers (based on Ceph), and two HAProxy load balancers. Monitoring is done via Graphite [5], with an Elasticsearch [6], Logstash [7], and Kibana [8] (ELK
10%
Automating command execution across servers
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Photo by Adrian Hartanto on Unsplash
: [devuan] 10 donkey: 11 user: root 12 host: donkey.operationalsecurity.es 13 tags: [devuan] 14 zebra: 15 user: root 16 host: zebra.operationalsecurity.es 17 tags: [devuan] 18 19
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The best cmdlets for PowerShell
16.05.2013
Home »  Archive  »  2013  »  Issue 14: Samba 4  » 
© Rossella Apostoli, 123RF.com
Index 12 -IPAddress 192.168.178.2 -PrefixLength 24 -DefaultGateway 192.168.178.1 You can then enter the DNS servers like this: Set-DnsClientServerAddress -InterfaceIndex 12 -ServerAddresses 192
10%
Run rootless Podman containers as  systemd services
26.01.2025
Home »  Archive  »  2025  »  Issue 85: Monit...  » 
Photo by Geeky Shots on Unsplash
Podman in their standard repositories. In immutable Linux distributions like Fedora CoreOS [5] and openSUSE MicroOS [6] (Figure 1), Podman comes pre-installed. Both Linux distributions offer a minimal
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Managing Storage with LVM
07.11.2023
Home »  HPC  »  Articles  » 
 the last command as an example, an option to specify the extent size would be: # vgcreate -s 8M vg0 /dev/sdb1 /dev/sdd The -s 8M  option specifies a PE size of 8MB when the VG is created. You can change
10%
CephX Encryption
27.03.2013
Home »  HPC  »  Articles  » 
as a regular client to gain access to the data. Libvirt 0.9.12 or later can handle CephX, but the setup is not very intuitive. The following example is based on the assumption that a user named libvirt exists
10%
Exploring the HPC Toolbox
04.11.2011
Home »  HPC  »  Articles  » 
an imminent failure. The lm_sensors tool [5] lets you monitor the fan and temperature. With just a little scripting, you can even create a heat map of the cluster to identify hotspots.  The smartmontools [6

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