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27%
Software-defined networking for the future
04.04.2023
Home »  Archive  »  2023  »  Issue 74: The F...  » 
Photo by Leio McLaren on Unsplash
.0 was released in December 2009. The interface allows an SDN controller to reach beyond routers and switches, which was previously impossible. SDN is controlled in infrastructures by OpenFlow with Open
27%
Wireshark
27.11.2011
Home »  Articles  » 
 
needs direct access to the hardware and thus typically runs with root privileges. The exceptions are Mac OS X and Solaris, where the user only needs access privileges for the network interface card device
27%
Speed up your MySQL database
11.02.2016
Home »  Archive  »  2016  »  Issue 31: Tunin...  » 
Lead Image © Mikhail Dudarev, 123RF.com
19 20 mysql> CREATE TABLE `data_random` ( 21 `id` CHAR(32) NOT NULL, 22 `data` VARCHAR(64) DEFAULT NULL, 23 `ts` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, 24
27%
Kolab iRony with CalDAV and CardDAV support
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Pablo Hidalgo, 123RF.com
RewriteRule ^\.well-known/caldav / [R,L] 18 RewriteRule ^\.well-known/carddav / [R,L] 19 20 RewriteCond %{REQUEST_FILENAME} !-f 21 RewriteCond %{REQUEST_FILENAME} !-d 22 ... data available on iOS and Mac OS  X and in Thunderbird and Evolution.
27%
Relational databases as containers
17.06.2017
Home »  Archive  »  2017  »  Issue 39: Conta...  » 
Lead Image © James Thew, 123RF.com
a complete loss of data is in the cards. Distributed Storage Distributed file storage, as provided by the Network File System (NFS) [19], GlusterFS [20], or Ceph [21], offers a remedy. In principle
27%
Monitoring Memory Errors
17.09.2013
Home »  Articles  » 
 
of background radiation – primarily neutrons from cosmic rays. The same Wikipedia article reports that the error rates reported from 2007 to 2009 varied all over the map, ranging from 10–10 (errors/bit-hr) to 10
27%
Update your Docker containers safely
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © yelenayemchuk, 123RF.com
check_args "$@" 13 14 local image=$1 15 local token=$(get_token $image) 16 local tags=$(get_tags $image $token) 17 echo "tags reported are:" 18 echo $tags 19 } 20 21 get_token() { 22 local
27%
Getting started with the Apache Cassandra database
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Photo by Almos Bechtold on Unsplash
# Intra-node communication 22 - 7000 23 # TLS intra-node communication 24 - 7001 25 # JMX 26 - 7199 27 # CQL 28 - 9042 29
27%
Measuring the performance health of system nodes
02.08.2022
Home »  Archive  »  2022  »  Issue 70: Defen...  » 
Lead Image © Peter Hermes Furian, 123RF.com
be turned on and off according to what you want to check about the state of the node. Almost 20 years ago, when I worked for a Linux high-performance computing (HPC) company that no longer exists, we had
27%
Flexible backup for large-scale environments
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Photo by Nils Bouillard on Unsplash
/average VFull-backup size is above acceptable limit of 25TB (W102) last VFull runtime is longer then acceptable limit of 22h (C301) average incremental-backup size is above acceptable limit of 200GB (W302

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