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25.03.2020

Home » Archive » 2020 » Issue 56: Secur... »

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Apache Storm

08.10.2015

Home » Archive » 2015 » Issue 29: Rescu... »

Lead Image © Sergei Tryapitsyn, 123RF.com

-cluster on which ZooKeeper and the different Storm components can be run side by side. Storm requires the use of ZooKeeper from version 3.3.x onward. You can install the latest version 3.4.6 using the following

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Profiling Python code

30.01.2020

Home » Archive » 2020 » Issue 55: AWS L... »

in certain parts of the code, as well as how often the portion of the code was called. cProfile, as the name hints, is written in C as a Python extension and comes in the standard Python 3, which keeps

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Processing streaming events with Apache Kafka

02.02.2021

Home » Archive » 2021 » Issue 61: Secur... »

and then sequentially browsing log entries. Kafka does not allow queries like ANSI SQL, which lets you search for a certain value. (3) The events in the log prove to be immutable – past events are very difficult to undo

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OpenLDAP Workshop

11.06.2014

Home » Archive » 2014 » Issue 21: Manag... »

of output provide information about the search and the type of output: # extended LDIF # LDAPv3 # base with scope subtree # filter: (objectClass=olcDatabaseConfig) # requesting: olc

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Life cycle management with Foreman and Puppet

16.05.2013

Home » Archive » 2013 » Issue 14: Samba 4 »

[3] runs on the client. Facter collects information about the system and forwards it to the Puppet master when Puppet runs. On the basis of collected facts, the master can generate a dynamic catalog

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Installing and operating the Graylog SIEM solution

13.12.2018

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

], and MongoDB 3.6 [3]. If not already present, installing Java (as root or using sudo) before Elasticsearch and MongoDB is recommended: yum install java-1.8.0-openjdk-headless.x86_64 You should remain root

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Integrating OCS information into monitoring with OpenNMS

21.08.2014

Home » Archive » 2014 » Issue 22: OpenS... »

website [2]. The OCS project documentation [3] and forum [4] will help you get started installing and configuring OCS. OpenNMS The OpenNMS network management platform [5] was predominantly developed

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Creating Virtual SSDs

21.01.2020

Home » HPC » Articles »

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OrientDB document and graph database

09.08.2015

Home » Archive » 2015 » Issue 28: SSD RAID »

database remote:localhost/discworld root plocal 03 04 create class Person extends V; 05 create property Person.birthday date; 06 07 create class Book extends V; 08 create property Book

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