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09.06.2018
[::]:* LISTEN
As you can see, only port 22 for SSH is open for incoming connections for both IPv4 and IPv6. If you are not (yet) using IPv6 on your network, you should disable it, because what good
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30.01.2024
. The following example assumes a system with Ubuntu 22.04.
To begin, you need to install some required software management packages (Listing 1, line 1); download the GPG key used to sign Docker's package lists
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05.02.2023
hardware support [7]. I am using Ubuntu 22.04 (Jammy) for this test in the original us-east-1 availability zone.
$ aws ec2 run-instances --image-id ami-0ea1c7db66fee3098 --region us-east-1 --key federico
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31.10.2025
to find out more details about specific services.
Listing 1
Nmap Command
root@sandbox:~# nmap -v -A www.haribo.de
...
Host www2.haribo.com (213.185.81.67) is up (0.011s latency).
Interesting
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30.11.2025
the target host once. In order to ping continuously, as on Linux, you will need to specify the -s option.
Listing 2
Ping on Solaris
# uname -sr
SunOS 5.10
# ping server
server is alive
# ping -s
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05.08.2024
Modern software-as-a-service (SaaS) offerings are highly dependent on external cloud providers to run and work reliably, but nothing comes without conditions or comes free, especially public cloud
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09.04.2019
billing, and the Infrastructure-as-a-Service (IaaS) model from AWS, do not forget the continual blessing of new features and services by the bucket load (pun intended). Some of these cloud services fall
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31.10.2025
seconds, for example:
# nc -p 16000 -w 30 examplehost.tld 22
If firewalling is in place and you need to originate your connection from a specific IP address to open a port, then you can enter:
# nc -s 1
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10.12.2012
expensive.
Not using a Microsoft-certified USB disk comes with a few, potentially deal-breaking shortcomings: It’s not an official Windows To Go image, and you don’t get your personal (purchased) apps
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26.01.2025
've not even mentioned Kubernetes itself (see the "Taming the AI Infrastructure" box). Any administrator who has ever rolled out K8s knows that success is by no means guaranteed.
Taming the AI
