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17%
Managing Linux systems with Spacewalk
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © NASA
(Session); 11 %EXPORT_TAGS = ( DEFAULT => [qw(&Session)] ); 12 13 sub Session { 14 open(IN, "/etc/sysconfig/spacewalk_api.conf") or die "Spacewalk API config not found: $!"; 15 $_ = ; 16 my ($server
17%
Nagios alerts implemented via VoIP
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
© Zentilia, 123RF.com
=/opt/pjsua.conf 06 SOUNDFILE=/tmp/alert.wav 07 TEXT2WAVE=/usr/bin/text2wave 08 DURATION=20 09 NUMBER=01234567890 10 MESSAGE="Monitoring Alert" 11 12 # Setting a lock file 13 # We can't make more than one call 14
17%
Monitoring daemons with shell tools
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Shariff Che'Lah, 123RF.com
#! /bin/sh 02 03 while true 04 do 05 06 zeit=$(date +%d.%m.%y\ %H:%M\ ) 07 08 psql -U monitor -d monitor -c "select * from watch;" 09 10 if [ $? -eq 2 ]; 11 12 then 13 14 echo "$time: Database
17%
What's your status (page)?
28.11.2023
Home »  Archive  »  2023  »  Issue 78: Domai...  » 
Lead Image © Tatiana Venkova, 123RF.com
image: monitoror/monitoror:${MTRRTAG:-latest} 05 ports: 06 - "38080:8080" 07 environment: 08 - "MO_CONFIG=/etc/config.json" 09 restart: unless-stopped 10 11 networks: 12 default
17%
Tracing applications with OProfile and SystemTap
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© boing, Photocase.com
. The target systems only require the systemtap-runtime RPM and the staprun program it contains. The following command creates a prebuilt binary kernel module for the target system: stap -r kernel-PAE-2.6.31.12-174.2.22
17%
The practical benefits of network namespaces
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © Morganimation, fotolia.com
it through a ping test. The routing table, as defined in line 12, is only present in the ns1 namespace. With /etc/netns/ns1, $ mkdir -pv /etc/netns/ns1 mkdir: created directory ?/etc/netns? mkdir: created
17%
HDF5 with Python and Fortran
21.03.2017
Home »  HPC  »  Articles  » 
   # =================== 09   # 10  if __name__ == '__main__': 11  12      f = h5py.File("mytestfile.hdf5", "w") 13  14      dset = f.create_dataset("mydataset", (100,), dtype='i') 15     16      dset[...] = np.arange(100) 17
17%
SmartOS: Cool Cloud Platform Rises from the Ashes of Solaris
10.06.2014
Home »  Articles  » 
kernel 3.12, so that SmartOS at least installed without error messages, although it would hang if you tried to launch a KVM machine. Although you don’t have to worry about installation, you do need to set
17%
Get Started with Parallel CPython
07.11.2011
Home »  HPC  »  Articles  » 
 if '__main__' == __name__: 09  10     p1 = Process(target = test, args = ('Rich',)) 11     p2 = Process(target = test, args = ('Nus',)) 12     p3 = Process(target = test, args = ('Geeks',)) 13  14     p2
17%
Jenkins Configuration as Code
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © Amri Wolfgang, 123RF.com
_HOME=/ephemeral/jenkins 10 11 # for main web interface: 12 EXPOSE ${HTTP_PORT} 13 14 ENV JENKINS_HOME=${JENKINS_HOME} 15 ENV CASC_JENKINS_CONFIG=/jcasc_config 16 17 COPY jcasc_config/* ${CASC_JENKINS_CONFIG}/ 18 19 RUN mkdir

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