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How to find active local computers on a LAN with Linux machine

November 7, 2008 admin No comments

This entry gives a way to find active computers on a LAN with Linux machine.
We can use nmap port scanning tool for that.

You can install nmap with
yum install nmap
or
apt-get install nmap
Example:
nmap -sP 192.168.200.0/23

searches 192.168.200.x & 192.168.201.x sub networks. And lists active computers.

nmap -v -sP 192.168.200.0/23 gives more verbose.

February 4, 2008 admin No comments

public key not available for [package]

If this key is not installed, and you are running

Fedora Core, you may install it with:
# rpm –import /usr/share/rhn/RPM-GPG-KEY-fedora