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19%
Improved Performance with Parallel I/O
08.10.2015
Home »  Archive  »  2015  »  Issue 29: Rescu...  » 
Lead Image © Ying Feng Johansson, 123RF.com
. The speed-up increases from 1.00 with one process to 4.71 using 64 processes. Of course, the wall clock time for the serial portion of the application does not change; it stays at 200 seconds regardless
19%
An IT nomad's daily diary
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Kateryna Pruchkovska, 123RF.com
magazine [3]. In other words, the many Cobbler system records are really the biggest problem. Just to jog your memory: Using system records, Cobbler can create an individual PXE configuration file for each
19%
Cumulus Networks Enhances Their Network-Specific Linux
02.12.2019
Home »  News  » 
 
Compute Project’s networking specification (including the Open Network Install Environment). With the release of Cumulus Linux 4.0, there are a number of changes to be found, so make sure you are informed
19%
Comparing Ceph and GlusterFS
21.04.2015
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © agencyby, 123RF.com
of this category currently on the free and open source software market. On the commercial side, Amazon's S3 probably works very similarly. Binary Objects Object stores rely on binary objects because they can
19%
A script for strict packet filter updates
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © french 03, photocase.com
_LIST}; do 194 delete_rule BLOCK_PREFIX -s ${P} -j DROP 195 insert_rule BLOCK_ASN -s ${P} -j DROP 196 done 197 done 198 fi 199 200 201 202 # Discard old entries 203 if [ "${UNBLOCK_AUTO}" -eq
19%
Build operating system images on demand
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © Nataliya Hora, 123RF.com
too much manual intervention. Quite remarkably, FAI was created back in the late 1990s, long before automation tools such as Puppet or Ansible existed. FAI offered the ability to roll out an OS
19%
CrowdSec crowd security service
05.02.2023
Home »  Archive  »  2023  »  Issue 73: Datab...  » 
Photo by Dan Burton on Unsplash
is configured, you can connect it to the service by typing something like: cscli console enroll cl5zgf4qs00 030wjqmvrt7s30 The web console must be running on the computer, and you need to be authenticated
19%
Administering virtual machines with PowerShell Direct
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © liu liming, 123RF.com
machines (VMs). After loading the command extension, by using Import-Module Hyper-V, you have more than 200 new commands at your disposal (depending on the version) for managing your hypervisor and VMs. You
19%
Set up subdomains with Apache and Nginx
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Lead Image © Saniphoto, Fotolia.com
89.221.14.204... Connected to www.wintermeyer.de. Escape character is '^]'. GET / HTTP/1.1 HOST: www.wintermeyer.de HTTP/1.1 301 Moved Permanently Server: nginx/1.10.3 Date: Fri, 27 Nov 2020 14:00
19%
Manage OpenVPN keys with Easy-RSA
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Orlando Rosu, 123rf.com
for all existing users without a certificate (Listing 2). send_certs_and_config.py (Listing 3) signs them with S/MIME and mails to the VPN users. revoke_remove_cert_without_user (Listing 4) is applied

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