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Reading and understanding database execution plans

31.10.2025

Home » Archive » 2012 » Issue 12: NAS S... »

| 355 | 18 |* 3 | INDEX RANGE SCAN | SALES_DATE | | 26 | 19 | 4 | TABLE ACCESS FULL | EMPLOYEES | 9M | 478 | 20

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Monitoring KVM instances with Opsview

30.11.2025

Home » Archive » 2012 » Issue 07: Xen v... »

also frequently provides the underpinnings for a virtualization cluster that runs multiple guests in a high-availability environment, thanks to Open Source tools such as Heartbeat [2] and Pacemaker [3

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vSphere 5 vs. XenServer 6

30.11.2025

Home » Archive » 2012 » Issue 07: Xen v... »

[9]. Test version: Two XenServer trials are available [10]. Although I would have liked to include the future version 3 of the Red Hat Enterprise Virtualization [4] product as a long

42%

Taking that Unix and Linux feeling tothe Windows desktop with MobaXterm

30.11.2025

Home » Archive » 2012 » Issue 09: Windo... »

version with advanced capabilities is available for EUR 49. A feature list [3] specifies the differences between the free and pro versions. The terminal function supports anti-aliasing, fonts, and macros ... 9

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An IP-based load balancing solution

30.11.2025

Home » CloudAge » Articles »

and least connected, and they are also the most commonly used in LVS clusters. Configuration Piranha [3] is a clustering product from Red Hat based on the LVS concept. It includes the IPVS kernel code ... 3

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Container and hardware e-virtualization under one roof

30.11.2025

Home » Archive » 2010 » Issue 2: Backup... »

.5-23 05 pve-kernel-2.6.24-11-pve: 2.6.24-23 06 qemu-server: 1.1-16 07 pve-firmware: 1.0-5 08 libpve-storage-perl: 1.0-13 09 vncterm: 0.9-2 10 vzctl: 3.0.23-1pve11 11 vzdump: 1.2-5 12 vzprocps: 2.0.11-1dso2

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Tracing applications with OProfile and SystemTap

30.11.2025

Home » Archive » 2010 » Issue 1: System... »

686 oprofile-0.9.5-4.fc12.i686 To profile the kernel, you need to tell OProfile where the kernel image is located with the --vmlinux option: opcontrol --setup --vmlinux=/usr/lib/debug/lib/ modules

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Overview of cloud platforms and appliances

30.11.2025

Home » Archive » 2010 » Issue 2: Backup... »

, your scaling options are virtually unlimited, and you can add Content Delivery Networks (CDN). As an example, SlideShare [1] integrates document downloads and Flash file hosting with Amazon S3 and Cloud

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Free backup tool for data centers

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

Include { 13 File = /usr/sbin 14 Options { 15 Signature = MD5 16 } 17 } 18 Exclude { 19 File = /var/lib/bacula 20 File = /tmp 21 } 22 } 23 24 Messages { 25 Name = Daemon 26

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Workshop: Getting web and mail servers ready for IPv6

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

that ICMPv6 communication is allowed on the local IP addresses that the system autonomously generates (fe80::/10) to ensure that neighbor solicitation and neighbor advertisement (a kind of IPv6 ARP) still work

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