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PowerDNS Authoritative server high availability with MariaDB Galera
02.08.2022
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Lead Image © Sergey Nivens, 123RF.com
A quick edit of your pristine MariaDB server's configuration file /etc/my.cnf.d/server.cnf (1) binds the MariaDB service to the localhost and (2) connects and (3) creates the database: Bind-address = 127.0.0
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OpenStack workshop, part 2: OpenStack cloud installation
14.03.2013
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© Anatoly Terebenin, 123RF.com
IDENTIFIED BY 'ohC3teiv'; 10 EOF 11 mysql -u root <0Ud7ra'; 15 EOF 16 mysql -u root <
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Coordinating distributed systems with ZooKeeper
07.10.2014
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Lead Image © smileus, 123RF.com
/test [zk: localhost:2181(CONNECTED) 11] get /test HelloWorld! cZxid = 0xa1f54 ctime = Sun Jul 20 15:22:57 CEST 2014 mZxid = 0xa1f54 mtime = Sun Jul 20 15:22:57 CEST 2014 pZxid = 0xa1f54 cversion = 0
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Blending Java with other programming languages
10.04.2015
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Lead Image © Ivan Mikhaylov, 123RF.com
engine.eval(new FileReader(args[0])); 09 } 10 } Using ScriptEngineManager (line 6), the code generates a ScriptEngine, which comes with a variety of eval() methods that run scripts from strings
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A self-healing VM system
07.06.2019
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Lead Image © THISSATAN KOTIRAT , 123RF.com
with timeout 15 seconds 03 if status != 0 for 3 cycles then exec "/usr/bin/ansible-playbook rebuild_node.yml" 04 if status != 0 for 3 cycles then exec "/usr/bin/mail -s 'Node 5 ping failed
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The Aurora Mesos Framework
09.08.2015
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Lead Image © Anton Gvozdikov, 123RF.com
resources = Resources(cpu = 0.1, ram = 20*MB, disk = 20*MB), 09 processes = [hello_world_process]) 10 11 hello_world_job = Job( 12 cluster = 'test', 13 role = os.getenv('USER'), 14 task = hello
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Creating a private apt repository with reprepro
12.09.2013
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Lead Image © binkski, 123RF.com
packages/conf/distributions Origin: TKmon Label: tkmon Codename: precise Suite: stable Architectures: i386 amd64 source Components: main optional SignWith: 0B8738CA $ vi packages/conf/options verbose ask
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Server administration with Cockpit
29.09.2020
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Photo by Joshua J. Cotten on Unsplash
.168.2.17", 04 "visible": true, 05 "color": "green", 06 "user": "root" 07 }, 08 "web server": { 09 "address": "192.168.2.4", 10 "visible": true, 11 "color": "rgb(100, 200, 0)", 12
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Automate your VMware configuration with Puppet
11.04.2016
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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
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Listing 6
21.08.2012
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 will allocate 4 cores 15 ### using 3 processors on 1 node. 16 #PBS -l nodes=1:ppn=3 17 18 ### Tell PBS the anticipated run-time for your job, where walltime=HH:MM:SS 19 #PBS -l walltime=0:10:00 20 21 ### Load

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