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  • Article (Print) (118)
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24%
Monitoring KVM instances with Opsview
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Gina Sanders, Fotolia
Since the Linux kernel 2.6.20 release in February 2007, the Kernel-Based Virtual Machine, KVM [1], has made much progress in its mission to oust other virtualization solutions from the market. KVM
24%
The RADOS object store and Ceph filesystem
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© Brigida Soriano, Fotolia.com
to install RADOS and Ceph. Ceph, which is a plain vanilla filesystem driver on Linux systems (e.g., ext3 or ext4), made its way into the Linux kernel in Linux 2.6.34 and is thus available for any distribution
24%
Single sign-on with SSSD, LDAP, and Kerberos
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Anja Kaiser; Fotolia
posixaccount /etc/dirsrv/schema/10rfc2307.ldif objectClasses: ( 1.3.6.1.1.1.2.0 NAME 'posixAccount' DESC 'Standard LDAP objectclass' SUP top AUXILIARY MUST ( cn $ uid $ uidNumber $ gidNumber $ home
24%
Centralized software repository management
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© 1xpert, 123RF.com
-client consumer bind --repoid Fedora14-x86_64 command, which tells Pulp to create a new pulp.conf configuration file below /etc/yum.repos.d to point to the new repository on the server (Listing 6). If the client
24%
Mobile PC Monitor: A sys admin's best friend
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Buchachon Petthanya, 123RF.com
application. Figure 1 shows a screenshot of PC Monitor on Windows. Figure 2 is the PC Monitor installation launched on Linux (answer "No" (n ) to the Start the PC Monitor Manager question), and Figure 3 shows
24%
High-availability workshop: GFS with DRBD and Pacemaker
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Maxim Borovkov, 123RF.com
into Linux when Linus Torvalds added it to kernel version 2.6.19. GFS2 was thus a later entry to the kernel than the comparable OCFS2, which made it into kernel 2.6.16. In the kernel, GFS relies
24%
FreePBX phone system
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Lead Image © Lofik, Fotolia.com
power. What I mean here is inexpensive devices such as those from Minisforum [4], Beelink [5], or Geekom [6]. The Minisforum UM760 Slim, for example, comes with 16GB of DDR5 RAM and an AMD Ryzen 5 7640HS
24%
New Approaches to DNS
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
Lead Image ©bowie15, 123RF.com
:26:27 UTC ;; From 149.112.112.112@853(QUIC) in 9.6 ms DNS over HTTP/3 The relatively new DNS over HTTP/3 (DoH3) protocol feels like yet another upgrade of DoH. This time it's not a clone as a cool new
23%
Introduction to behavior-driven monitoring
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Mariya Herasymenko, 123RF
-resource browser simulator used for test scenarios involving HTTP. You will also find the Mechanize library [6], which contributes functions for automated interactions on websites. Additionally, thanks to the Ruby
23%
Harden your Linux servers to stop malware
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Lead Image © Danila Krylov, 123RF.com
of the infrastructure. For a first impression or in a small environment, Wazuh provides a virtual machine [6] that contains all services and appears at https:// after booting. Without agents, though

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