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18%
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.
18%
Kopano Groupware – an open source productivity suite
30.11.2020
Home »  Archive  »  2020  »  Issue 60: Secur...  » 
Lead Image © Klementiev, fotolio.com
software of the same name. In this article, I describe the installation of all components on a Ubuntu server. For a small setup with up to 25 users, the Kopano team recommends a server with at least two
18%
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
18%
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
18%
The practical benefits of network namespaces
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © Morganimation, fotolia.com
ns2 ip addr add 1.1.1.2/10 dev veth2 18 $ ip netns exec ns1 ip link set veth1 up 19 $ ip netns exec ns2 ip link set veth2 up 20 21 $ ip netns exec ns1 ping -c2 1.1.1.2 22 PING 1.1.1.2 (1.1.1.2) 56
18%
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
18%
Network monitoring with Icinga and Raspberry Pi
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © AndreaDanti, 123RF.com
generic-service 21 host_name ubuntusrv 22 service_description Current Users 23 check_command check_nrpe!check_users!20!50 24 } 25 26 define ... 25
18%
Encrypting files
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © Yoichi Shimizu, 123RF.com
– Default; an improved and optimized version of the LZ77 algorithm. LZMA2 – An improved version of LZMA. PPMD – Dmitry Shkarin's PPMdH with small changes. PCJ – A converter for 32-bit x86 executables
18%
Minifying container images with DockerSlim
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © Maggie Molloy, 123RF.com
(minified by 25.99X) from python:2.7-alpine - 84.3MB => 23.1MB (minified by 3.65X) from python:2.7.15 - 916MB => 27.5MB (minified by 33.29X) from centos:7 - 647MB => 23MB (minified by 28.57X) from centos ... DockerSlim minifies your Docker container images up to 30x and adds security, too.
18%
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

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