loadYOURSELF

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.

#apt-get install openssh-server openssh-client

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

Installation of CVS and CVSUP
Installing CVS on Redhat Linux 7.1/7.2/7.3
The following steps give simple steps to install CVS software on Redhat
Linux 7.1/7.2/7.3 1) Download the tarball cvs-1.11.1p1.tar.gz from

http://www.cvshome.com

CVS pserver allows source code to be retrieved and modified without
access to a file system. It may be more reliable and faster than using
the file system on slow network connections.

1. Log in as root
2. Create a user account called cvs
3. Enter: ctlinnd newgroup engineering.checkins
   • This is optional, you can have the script send emails instead
4. Add the following line to /etc/news/expire.ctl:
   engineering.checkins:A:1:90:never
   The messages will expire after 90 days.