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Monitoring network computers with the Icinga Nagios fork

17.06.2011

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

young project that was forked from Nagios [2] when development of the popular open source network monitor stagnated. Icinga delivers improved database connectors (for MySQL, Oracle, and Postgre

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News for Admins

30.11.2020

Home » Archive » 2020 » Issue 60: Secur... »

of hardware architecture. As for your cloud-native needs, version 8.3 includes updated container images for Buildah and Skopeo, as well as Podman 2.0. With the Podman 2.0 release, developers can work

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When I/O Workloads Don’t Perform

12.05.2021

Home » HPC » Articles »

-machine kernel: [ 387.117129] sd 0:0:0:0: [sda] tag#3 Send: scmd 0x000000001842ae5b Mar 27 15:21:24 dev-machine kernel: [ 387.117134] sd 0:0:0:0: [sda] tag#3 CDB: Write(10) 2a 00 1d 04 5d 88 00 00 20 00 Mar 27

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Static code analysis finds avoidable errors

06.10.2019

Home » Archive » 2019 » Issue 53: Secur... »

strcpy precondition: requires maxSet() >= maxRead(2>) A memory write may write to an address beyond the allocated buffer. (Use -boundswrite to inhibit warning) example1.c:8:20

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Goodbye virtual machines, hello microVMs

06.10.2022

Home » Archive » 2022 » Issue 71: Kuber... »

://github.com/weaveworks/ignite/releases | grep download|grep amd64 | awk -F '"' '{print $2}' | head -1)" -o /usr/local/bin/ignite && sudo chmod +x /usr/local/bin/ignite Now executing ignite should dump its help screen as shown in Figure 1

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Getting the most from your cores

11.10.2016

Home » Archive » 2016 » Issue 35: Persi... »

straightforward. If a processor was operating at a fixed frequency of 2.0GHz, CPU utilization was the percentage of time the processor spent doing work. (Not doing work is idle time.) For 50% utilization

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Exploring SQL Server on Linux

13.12.2018

Home » Archive » 2018 » Issue 48: Secur... »

_64 3/4 19 Verifying : bzip2-1.0.6-13.el7.x86_64 4/4 20 21 Installed: 22 mssql-server.x86_64 0:14.0.3026.27-2 23 24 Dependency

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Encrypted backup with Duplicity

11.04.2016

Home » Archive » 2016 » Issue 32: Measu... »

Linux distributions have it in their repositories. Users of OS X can install it via Fink, for example. For Ubuntu-based distributions, there is also a PPA [2] with the current Duplicity version

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Determining CPU Utilization

25.02.2016

Home » HPC » Articles »

straightforward. If a processor was operating at a fixed frequency of 2.0GHz, CPU utilization was the percentage of time the processor spent doing work. (Not doing work is idle. ) For 50% utilization, the processor

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Graphite: Collect and Visualize Numeric Data

30.07.2014

Home » HPC » Articles »

$socket "system.loadavg_5min $lavg[1] $ts\n"; print $socket "system.loadavg_15min $lavg[2] $ts\n"; sleep(60); } close($socket); The example client in Listing 1 sends the load average values of the last 1, 5, and 15

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