Very Computer

Hello everyone

I need some help to configure two PCs that I have at home.

They are connected to each other via a network cable: One is runnig RHLinux
7.2 and the other RHLinux 4.1 (Vanderbuilt), kernel 2.0.27

My goal is to practice some some basic exercises from Richard Stevens "Unix
Network Programming" that deal with sockets.
Also I'd like to exploit some Unix commands like ping, tcpdump, etc... I
suppose that comprehension of those commands will be hard if I use just a
single standalone computer.

I've notice that there are some unix commands that let one configure a
network but I just do not know how to fill the parameters. One of them,
netconfig, presents the following screen:

     Configure TCP/IP:

[ ]Use dynamic Configuration (BOOTP/DHCP)

   IP address________________
   Netmask___________________
   Default Gateway___________
   Primary Name Server_______

Any kind of help will be most welcome.

    Thank you very much
    Mario

Assuming you don't want to connect this to the wider world, you just
need to allocate yourself a private network number as per RFC1918. Most
people choose 192.168.x.0/24 where x is a random number between 0 and
255. Then give the two machines addresses e.g. 192.168.x.1 and
192.168.x.2. The netmask is 255.255.255.0. You should be able to omit
the other two for a closed network of two machines. Put them in each
others' /etc/hosts files to eliminate the need for a nameserver.

If you have no hub then the connecting cable needs to be a crossover
(assuming it's a UTP cable not BNC).

Regards, Ian

PS A colleague once wrote a reasonably complex sockets application on a
stand alone Linux PC testing it over localhost; but I agree, it is
better to have two.

It seems like you aren't using a hub - if so, i hope that network cable
is a crossover cable, or nothing will work.
Why not fill in the 'netconfig' parameters with the following, just for
kicks.

##Machine 1##
IP address  192.168.1.1
Netmask   255.255.255.0
Default Gateway  (leave blank)
Primary Name Server  (also leave blank)

##Machine 2##
IP address  192.168.1.2
Netmask   255.255.255.0
Default Gateway  (leave blank)
Primary Name Server  (also leave blank)

Then you should be able to ping machine 1 from machine 2 with the
command:
ping 192.168.1.1
and vice versa.

Cheers.

----------------8>< snip ---------------------
| Also I'd like to exploit some Unix commands like ping, tcpdump, etc...
I
| suppose that comprehension of those commands will be hard if I use
just a
| single standalone computer.
|
| I've notice that there are some unix commands that let one configure a
| network but I just do not know how to fill the parameters. One of
them,
| netconfig, presents the following screen:
|
|
|      Configure TCP/IP:
|
| [ ]Use dynamic Configuration (BOOTP/DHCP)
|
|    IP address________________
|    Netmask___________________
|    Default Gateway___________
|    Primary Name Server_______
----------------8>< snip ---------------------