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UNIX for Dummies Questions & Answers
ping
Post 32981 by BSeanD on Thursday 12th of December 2002 04:56:31 AM
12-12-2002
I'm not sure its as easy as that. I remember when I was using Linux I was able to block pings being returned giving the impression the machine was down/non-existant. I'm guessing you can do that in almost any OS.
You'd want to scan a system with something like nmap, if your using Unix, but of course that sort of thing is frowned upon if it's not your own machine.
You'd want to scan a system with something like nmap, if your using Unix, but of course that sort of thing is frowned upon if it's not your own machine.
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LEARN ABOUT DEBIAN
systemd-machine-id-setup
SYSTEMD-MACHINE-ID(1) systemd-machine-id-setup SYSTEMD-MACHINE-ID(1) NAME
systemd-machine-id-setup - Initialize the machine ID in /etc/machine-id SYNOPSIS
systemd-machine-id-setup DESCRIPTION
systemd-machine-id-setup may be used by system installer tools to initialize the machine ID stored in /etc/machine-id at install time with a randomly generated ID. See machine-id(5) for more information about this file. This tool will execute no operation if /etc/machine-id is already initialized. If a valid D-Bus machine ID is already configured for the system the D-Bus machine ID is copied and used to initialize the machine ID in /etc/machine-id. If run inside a KVM virtual machine and a UUID is passed via the -uuid option this UUID is used to initialize the machine ID instead of a randomly generated one. The caller must ensure that the UUID passed is sufficiently unique and is different for every booted instanced of the VM. Similar, if run inside a Linux container environment and a UUID is set for the container this is used to initialize the machine ID. For details see the documentation of the Container Interface[1]. OPTIONS
This tool does not take any options or arguments. EXIT STATUS
On success 0 is returned, a non-zero failure code otherwise. SEE ALSO
systemd(1), machine-id(5), dbus-uuidgen(1) AUTHOR
Lennart Poettering <lennart@poettering.net> Developer NOTES
1. Container Interface http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface systemd 10/07/2013 SYSTEMD-MACHINE-ID(1)