First using the installation CD, follow all the instructions. Don't give yourself a headache worrying about how to partition the hard drives. Simply delete all the slices by selecting them with arrow keys and deleting them with the "D" key. Press the "A" key to auto select the correct partition information and then press the "Q" key. The same goes for the disk structure. Press the "A" key to autoselect the correct information then press the "Q" key to save the information. The install program will then write to the partiton and copy all the data from CD-ROM to the hard disk.
Next, the installation program will ask you a few questions. Do not enable the first ethernet device or configure it to use DHCP. Select yes to enable the second ethernet device.
ENTER 192.168.0.1
would you like to configure this machine as a network gateway?>
YES
would you like to enable SSH login?
YES
do you want to have anonymous FTP access to this machine?
YES
Create a welcome message file for anoymous FTP users?
NO
Would you like to add linux binary compatablity?
YES
Like the address on your house, painted on your curb or on your mailbox; the standard protocol called TCP/IP uses a simple sequence of instructions that are simply on or off to identify a subset of secondary instructions. This matrices of 1's and 0's as a whole or in part is indicative of it's self. The mailman delivers the mail; the fire department can see your address clearly on the curb.
The "binary" (1's and 0's on or off) bits are broken into a matrices of four octets (1 octet = 8 bits). An IP address is interpreted by computers in dotted decimal format (like, 192.168.0.1). Each octet is delimited by a period (dot). The decimal value of each octet ranges from 0 to 255 or 00000000 - 11111111 in binary numbers that altogether has a value of 8 bits.
Let's say the first bit of an octet holds a value of 1 (on). The next bit in the octet matrices holds a value of 0 (off). The next holds a value of 0 (on). The next holds a value of 1(off). The next holds a value of 0(on). The next holds a value of 1(on). The next holds a value of 0(off). The last bit holds a value of 1 (on).
If all the binary bits of an octet matrices were a 1 (on), the decimal equivalent would be 255 as shown here:
1 1 1 1 1 1 1 1
128 64 32 16 8 4 2 1 (128+64+32+16+8+4+2+1=255)
More simply, the 8 bits of the binary number 10101010 (on|off|on|off|on|off|on|off) converts to the decimal number 170.
1 1 1 1 1 1 1 1 (on|on|on|on|on|on|on|on) converts to the decimal number 255
There are 8 bits in any given octet matrices.
This is an IP address in binary and that same IP address in decimal
170. 255. 255. 255 (decimal)
10101010.11111111.11111111.11111111 (binary)
For example, 10.1.23.19 is cited by Cisco Systems.