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20%
Admin as a service with sysstat for ex-post monitoring
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Levente Janos, 123RF.com
in the /usr/lib/systemd/system/sysstat-collect.timer file. You can set a scan every five minutes by entering *:00/05 instead of the default setting *:00/10: [Unit] Description=Run system activity accounting
20%
Setting up an OpenNebula Cloud
05.09.2011
Home »  CloudAge  »  Articles  » 
 
-user@nebula-cloud-server:~$ onevm create kvmVM.template 02 nebula-user@nebula-cloud-server:~$ onevm list 03 ID NAME STAT CPU MEM HOSTNAME TIME 04 0 kvmVM pend 0 0 00 00:00
20%
Discovering device names
16.05.2013
Home »  Archive  »  2013  »  Issue 14: Samba 4  » 
© cbpix, 123RF.com
Recently, a customer asked me what was going on with his system. All of a sudden, he no longer had an eth0; instead, he was seeing strange names like em1 or p3p1 at the console. He wanted to know ... Ethernet devices in Linux have always been called eth0 and nothing else. All of a sudden, this universal truth has lost its validity, and Linux administrators need to understand why and how.
20%
Exploring the filesystem that knows everything
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
Lucy Baldwin, 123RF
: 0 16 initial apicid : 0 17 fdiv_bug : no 18 hlt_bug : no 19 f00f_bug : no 20 coma_bug : no 21 fpu : yes 22 fpu_exception : yes 23 cpuid level : 10 24 wp
20%
Exploring the most famous performance tool
16.08.2018
Home »  Archive  »  2018  »  Issue 46: CMS S...  » 
Lead Image © Lucy Baldwin, 123RF.com
: The top command on a Linux system. 15:28:23 up 1 day, 20:10, 3 users, load average: 0.10, 0.14, 0.13 The second line of the display lists the aggregate state of the system's processes – 205 in all
20%
Automate your VMware configuration with Puppet
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © astragal, 123RF.com
-enterprise-3.8.1-ubuntu-14.04-amd64/packages/ubuntu-14.04-amd64 sudo dpkg -i pe-cloud-provisioner-libs_0.3.2-1puppet1_amd64.deb sudo dpkg -i pe-cloud-provisioner_1.2.0-1puppet1_all.deb vSphere Setup After
20%
Prepare, analyze, and visualize data with R
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © Buchachon Petthanya, 123RF.com
(dayOfYear):as.factor(wday)Monday 16.64 18 8.382 < 2e-16 *** s(dayOfYear):as.factor(wday)Saturday 11.29 18 3.307 3.00e-09 *** s(dayOfYear):as.factor(wday)Sunday 12.92 18 4.843 1.02e-13 *** --- Signif. codes: 0
20%
Maatkit tools for database administrators
17.06.2011
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
 
,200, comprising 55 different commands, were issued. The system, a server with 768MB RAM and a Pentium 3 CPU, took a total of 22 seconds to answer them, the longest response took 32 milliseconds, the shortest
20%
Monitoring HPC Systems
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Alexander Rivosh, 123RF.com
Version CentOS 6.5 Ganglia 3.6.0 Ganglia web 3.5.12 Confuse 2.7 RRDtool 1.3.8 Before installing any binaries, I try
20%
Modern Fortran for today and tomorrow
17.06.2017
Home »  Archive  »  2017  »  Issue 39: Conta...  » 
Lead Image © homestudio, 123RF.com
-1) = 0.25 * (a(1:n-2,2:n) + a(3:n,2:n) + a(2:n,1:n-2) + a(2:n,3:n)) Using forall, the same can be written as: forall (i=2:n-1, j=2:n-1) a(i,j) = 0.25*(a(i-1,j) + a(i+1,j) + a(i,j-1) + a(i,j+1

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