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100%
Automating Migration to openEuler
30.11.2025
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Photo by Chris Briggs on Unsplash
Rubén Llorente ... Sulad, a lightweight container runtime daemon; A-Tune, an AI-powered performance tuning tool for servers; and the x2openEuler migration tool. In this article, I explain how to use x2openEuler to migrate a small fleet
34%
ARP cache poisoning and packet sniffing
30.11.2025
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© elisanth, 123RF.com
Destination MAC address Listing 1 Nemesis arp Packets 01 $ while true 02 > do 03 > sudo nemesis arp -v -r -d eth0 -S 192.168.1.2 -D 192.168.1.133 -h 00:22:6E:71:04:BB -m 00:0C:29:B2:78:9
32%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
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© kudryashka, 123RF.com
# Header for user-specific report 19 printf("%2s\t%4s\t%4s\tD=%2d\n", "N", "Xdat", "Xpdq", MAXDUMMIES); 20 21 foreach $users (sort {$a <=> $b} @vusers) { 22 pdq::Init($model); 23 $pdq::streams = pdq
32%
Give your servers the once over with Nmap
31.10.2025
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© ragsac, 123RF.com
a sample of the output it produces (Listing 1). Listing 1 Sample Nmap Output # nmap -A -T4 scanme.nmap.org Starting Nmap ( http://nmap.org ) Interesting ports on scanme
32%
Processing the new sudo logging format
26.03.2025
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Photo by Kelly Sikkema on Unsplash
. The tool writes to a log to keep track of users who used sudo to run programs. The default format has been plain text, but from version 1.9.4, it can be configured to log in JSON format. sudo Logging
32%
Workshop: Container virtualization with LXC on Ubuntu 10.04
30.11.2025
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© Tormod Rossavik, 123RF.com
you additionally need in /cgroup. The following command is all the root user needs to run a single command – such as a shell – in an application container: lxc-execute -n foo -f /usr
31%
Managing virtual machines
30.11.2025
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© Igor Klimov, 123RF.com
filesystem, if so desired [5]: $ guestfish -N fs:ext3 When you call Guestfish with the new image, $ guestfish -a you are taken to a shell where you first need to enter run to toggle the system ... 9
31%
Data acquisition with shell tools
30.11.2025
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Dmitriy Syechin, 123RF
"------------------------------------------------------" 18 echo -n "Replace stored data line (y)? ";read we 19 if [ "$we" = "y" ]; 20 then 21 22 # Delete line and write to 23 # temporary file 24 25 # Build sed instruction 26
31%
Mandatory access control with Tomoyo Linux
30.11.2025
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© 3drenderings, 123RF.com
defaults to 1. Pressing the @ key takes you to an overview of the active processes (Figure 9). In Tomoyo 2.2, you instead need to quit the Profile Editor by pressing q and then run the tomoyo ... 9
31%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
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© Aleksey Mnogosmyslov, 123RF.com
by a generic description for the resource agent and a copyright notice; a list of parameters supported by the resource agent should follow to provide an at-a-glance overview. The header doesn't follow any

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