Linux Debian FAQ

How do I get the system to respond to broadcast pings?

# editor /etc/sysctl.conf    

net/ipv4/icmp_echo_ignore_broadcasts=0

How do I change the hostname?

If you ever need to change the hostname or FQDN, edit these files.

/etc/hostname
/etc/hosts
/etc/resolv.conf

You may also need to reconfigure your mail server, DNS, and other software. Then Reboot.

How do I extract tar.gz files?

To extract a gzipped tar file, run:

] tar -xzvf filename.tar.gz
  or
] tar -xzvf filename.tgz

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