Linux Server and Workstation Configuration How To

1. Transfer of static routes to DHCP

...  # Usage: # make_classless_option(); # subnet the subnet address, 4 dot-separated numbers # mask the subnet mask length (e.g. /24 corresponds to 255.255.255.0, /8 corresponds to 255.0.0.0) ...

2. vi editor commands

... vi :n<CR> Go to the n-th row of buffer :x,yw data<CR> Write a string of numbers x to number y in the new file named "data" :$<CR> Go to the last line of the buffer ...

3. grep

... names of files containing the sample. -n display line numbers next to the lines containing the sample. -q returns the status code, but nothing prints. -v print lines not containing the sample. -w compares ...

4. How to get Default Port Numbers

To View a port number type in terminal for full list: cat /etc/services for one you need: cat /etc/services | grep (port number or service) View /etc/services file.

5. Default Port Numbers

Here are listed default port numbers (full /etc/services file) # /etc/services: # $Id: etcservices.txt,v 1.2 2005/12/18 13:54:31 francis Exp $ # # Network services, Internet style # # Note that ...