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43%
Speed up your MySQL database
11.02.2016
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Lead Image © Mikhail Dudarev, 123RF.com
there are normally two. The size of these two files influences the speed of write access to InnoDB. This value was far too small for many years (5MB). The new default values in MySQL  5.6 take this into account
42%
Measuring the performance health of system nodes
02.08.2022
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Lead Image © Peter Hermes Furian, 123RF.com
have created. Probably the most predominant version is NPB-GPU [6], which uses the CUDA parallel computing platform and programming model to produce the GPU versions of the five kernels and three pseudo
42%
Performance Health Check
13.06.2022
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) BT (4 cores) 11.95 66.5 272 CG (4 cores) 0.4 23.9 62.3 EP (6 cores) 1.4 5.46 21.05 FT (4 cores) 1
41%
Sort out your SSH configs
07.10.2014
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and the other on all IPv6 IP addresses. Listing 1 Checking Open Ports chris@DebianBox:~# lsof -i :22 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME sshd 3328 root 3r IPv4 33323 0t0 TCP *:ssh
41%
News for Admins
22.12.2017
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, and eighth generation Intel Core Processor Family; the Intel Xeon Processor E3-1200 v5 and v6 Product Family; the Intel Xeon Processor Scalable Family; the Intel Xeon Processor W Family; the Intel Atom C3000
41%
Using a Bash script to mirror external monitors
10.06.2015
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configure settings for RandR [4] in Linux. The call to xrandr is pretty bulky: xrandr --fb 1600x900 --output LVDS1 --mode 1600x900 \ --scale 1x1 --output HDMI3 --same-as LVDS1 --mode 1920x1200 \ --scale
41%
The best performance yet
26.01.2025
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Lead Image © Lucy Baldwin, 123RF.com
in combination with a card supporting the extended standard (SDXC). CQ mode was introduced in 2017 with version 6.0 of the SD specification [4], but although the Linux kernel had been supporting CQ mode for e
40%
Analyzing tricky database problems
14.03.2018
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Photo by Quino Al on Unsplash
. The infrastructure also includes three LDAP servers, six NFS servers (based on Ceph), and two HAProxy load balancers. Monitoring is done via Graphite [5], with an Elasticsearch [6], Logstash [7], and Kibana [8] (ELK
40%
Digital asset management
05.12.2014
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Alchemy [5]. Phraseanet [1] has been available for download since 2010 under the GPLv3 via GitHub. We installed version 3.8. Before installing, admins should take a look at the documentation [6] to prepare
40%
Customizing PortSentry
30.03.2012
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Sentry: /etc/portsentry/temp_ban_length #!/bin/bash # Local IPs are only banned briefly if [ `echo $1 | grep '123.45.67.' ` ] || [ `echo $1 | grep '89.91.23.' ` ] || [ `echo $1 | grep '45.67.78.91' ` ] then /bin/sleep 1200 /sbin/iptables -D

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