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16%
Analyzing tricky database problems
14.03.2018
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Photo by Quino Al on Unsplash
that can be reset. However, with MariaDB 10.0.12, the performance tables are deactivated by default. To activate them, the database admin adds the line performance_schema=on to the my.cnf file. Detailed
16%
New features in MariaDB 10.3
05.02.2019
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Lead Image by Adarsh Kummur on Unsplash
SQL> SELECT * FROM marks; 11 12 SQL> DELIMITER // 13 14 SQL> CREATE AGGREGATE FUNCTION agg_count(x INT) RETURNS INT 15 BEGIN 16 DECLARE count_students INT DEFAULT 0; 17 DECLARE CONTINUE HANDLER
16%
System temperature as a dimension  of  performance
28.11.2022
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Lead Image © Lucy Baldwin, 123RF.com
of alternative sources. Listing 1 sensors Output federico@ferenginar:~$ sensors k10temp-pci-00c3 Adapter: PCI adapter temp1: +42.5¡C (high = +70.0¡C) (crit = +100.0¡C
16%
Network performance in-terminal graphics  tools
07.06.2019
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Lead Image © Lucy Baldwin, 123RF.com
(-l) starts off with a continuously updating single line providing network traffic statistics for the monitored interface: $ vnstat -l Monitoring eth0... (press CTRL-C to stop) rx: 108 kbit
16%
Look for file changes and kick off actions with Watchman
10.04.2015
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Lead Image © leksele, 123RF.com
Watchman is an open source tool developed by Facebook and released under the terms of Apache License 2.0. The Watchman website [1] states: "Watchman exists to watch files and record when they change
16%
Combining containers and OpenStack
09.10.2017
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Lead Image © Dmitriy Melnikov, Fotolia.com
stack17987 0.1 1.2 224984 49332 pts/35S+15:450:19 /usr/bin/python /usr/bin/magnum-api stack18984 0.0 1.4 228088 57308 pts/36S+15:450:06 /usr/bin/python /usr/bin/magnum-conductor $ Kubernetes, Mesos
16%
HTML to database with a Perl script
30.11.2020
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Lead Image © Danila Krylov, 123RF.com
for the categories representing the language that was identified in the menu iframe. Listing 1 HTML iframes 01 02 03
16%
Supercharge your software upgrade routine
05.08.2024
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Photo by redcharlie on Unsplash
-fs v1.6.0 [...] Compiling proc-macro2 v1.0.78 Compiling unicode-ident v1.0.12 [...] Finished release [optimized] target(s) in 15m 31s Installing /home/Dan/.cargo/bin/topgrade Installed package `topgrade
16%
New features in PHP 8
02.02.2021
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Lead Image © Maxim Borovkov, 123RF.com
On if $lever is set to Up or Down. If none of the comparison values before => are correct, the default value applies. Listing 1 match $flasher = match ($lever) { 0 => "Warning_Flasher", 'Up
16%
Endlessh and tc tarpits slow down attackers
02.02.2021
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Lead Image © Yewkeo, 123RF.com
FD TYPE DEVICE SIZE/OFF NODE NAME docker-pr 13330 root 4u IPv4 91904 0t0 TCP *:2222 (LISTEN) A simple test is to use the unerring, ultra-reliable netcat to see what is coming back

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