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Nagios Passive Checks
21.08.2014
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Lead Image © Lisa Young, 123RF.com
="Problem with mysqldump" 10 STATE=2 11 else 12 MESSAGE="Backup OK" 13 STATE=0 14 fi 15 16 echo "yourserver;Powerful_backup;$STATE;$MESSAGE" | /usr/sbin/nsca \ -H yournagiosserverIP -p 5667 -d ";" -c /etc
24%
Greylisting with Postgrey
22.06.2012
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0-07:06:40 10 32400 0-09:00:00 11 40000 0-11:06:40 12 48400 0-13:26:40 13 57600 0-16:00:00 14 67600
24%
Static code analysis finds avoidable errors
06.10.2019
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Lead Image © Andrey KOTKO, 123RF.com
* argv []) 06 /*@requires maxRead(argv) >= 1 @*/ 07 /*@-modfilesys@*/ 08 { 09 /*@-initallelements@*/ 10 char buffer [BUFSIZE] = {'\0'}; 11 /*@+initallelements@*/ 12 if ( ( argc
24%
Auditing Docker Containers in a DevOps Environment
27.12.2017
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Photo by Frank McKenna Unsplash.com
 following extra packages will be installed:   libauparse0 Suggested packages:   audispd-plugins The following NEW packages will be installed:   auditd libauparse0 0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded. Need to get 253 k
24%
Investigating container security with auditd
18.02.2018
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Lead Image, Frank Mckenna, @unsplash.com
auditd Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: libauparse0 Suggested packages: audispd
24%
Command-line tools for the HPC administrator
22.12.2017
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Lead Image © Vasyl Nesterov, 123RF.com
to it, you can begin to appreciate what compilers and linkers do for users today. Listing 1 Show Linked Libraries (ldd) $ pgf90 test1.f90 -o test1 $ ldd test1 linux-vdso.so.1 => (0x
24%
StarCluster Toolkit: Virtualization Meets HPC
16.01.2013
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(nsamples): 12     x = random.random() 13     y = random.random() 14     if (x*x)+(y*y)<1: 15         inside += 1 16  17 mypi = (4.0 * inside)/nsamples 18 pi = comm.reduce(mypi, op=MPI.SUM, root=0) 19  20 if rank
24%
Automating system configuration with Ansible AWX
13.12.2018
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Lead Image © Rungaroon taweeapiradeemunkohg, 123RF.com
dockerhub_version, you can also specify a specific AWX version, like dockerhub_version=1.0.1. A web server that delivers the AWX user interface runs in the Docker container. This web server listens on port
24%
pdsh Parallel Shell
08.07.2018
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read the hosts from a file other than the WCOLL environment variable: $ pdsh -w ^/tmp/hosts uptime 192.168.1.4:  15:51:39 up  8:35, 12 users,  load average: 0.64, 0.38, 0.20 192.168.1.250:  15:47:53 up
24%
Modularize websites with Web Components
09.04.2019
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Lead Image © Andrey Prokhorov, fotolia.com
padding:0; 07 } 08 09 10
    11 12 `; 13 14 class AnotList extends

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