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17%
Monitoring container clusters with Prometheus
09.10.2017
Home »  Archive  »  2017  »  Issue 41: Kuber...  » 
Lead Image © Guido Vrola, 123RF.com
in turn stores as a separate time series. The software can already cope with millions of time series, yet version 2.0 [6] should cover more extreme Kubernetes environments with thousands of nodes
17%
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
16%
Speed up your MySQL database
11.02.2016
Home »  Archive  »  2016  »  Issue 31: Tunin...  » 
Lead Image © Mikhail Dudarev, 123RF.com
your tuning actions. Are you looking for a shorter response time or more throughput? One objective could be, say: "Action X takes 3.5 seconds to complete after clicking – in future, we want to be done
16%
Exploring Kubernetes with Minikube
11.09.2018
Home »  Archive  »  2018  »  Issue 47: Findi...  » 
- containerPort: 80 19 20 --- 21 22 apiVersion: v1 23 kind: Service 24 metadata: 25 name: nginx-svc 26 labels: 27 run: nginx-svc 28 spec: 29 type: NodePort 30 ports: 31 - port: 80 32 protocol
16%
Getting a free TLS certificate from Let's Encrypt
13.06.2016
Home »  Archive  »  2016  »  Issue 33: IPv6...  » 
Lead Image © Stuart Miles, 123RF.com
for $i" 19 20 #If certs do not exist yet 21 FILE="$LECROOT/$i/cert.pem" 22 if [ ! -f "$FILE" ] 23 then 24 echo "$FILE does not exists, so lets get certificates" 25 cd /root/letsencrypt 26
16%
Update your Docker containers safely
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © yelenayemchuk, 123RF.com
this script, please let me know, preferably in Python 06 # hanscees@AT@hanscees.com 07 # modified from https://gist.github.com/cirocosta/17ea17be7ac11594cb0f290b0a3ac0d1x 08 09 set -o errexit 10 11 main() { 12
16%
How to configure and use jailed processes in FreeBSD
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
© Corina Rosu, 123RF.com
to jail>; 10 j.hostname = ; 11 j.ip_number = ; 12 /* call system call */ 13 i = jail(&j); 14 [...] 15 execv(, ...); 16 [...] 17 exit(0); 18
16%
Encrypting files
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © Yoichi Shimizu, 123RF.com
-bit and not the typical 32-bit keys. ZIP ZIP [12] is an archive file format, something along the lines of TAR. In addition to collecting files in a single archive file as tar does, zip can also
16%
Kolab iRony with CalDAV and CardDAV support
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Pablo Hidalgo, 123RF.com
-enabled clients, such as the Lightning Thunderbird extension, Evolution, OS  X applications like Apple's iCal (Calendar since Mountain Lion), as well as iOS and Android systems. For this to work, the Kolab team ... data available on iOS and Mac OS  X and in Thunderbird and Evolution.
16%
Easy configuration management with Puppet
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Warangkana Bunyarittongchai, 123RF
't want to spend your time translating between the options in different versions, so get the latest if you can. I'm only covering the latest version here, which, at the time of writing, is 2.7.x. Using

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