I got a few noob questions...
 

I am running Slackware 12.0

1. Why is it that I cannot change permissions on /proc/sys/net/ipv4/ip_forward as root?

I ran ls -l ip_forward and root is the owner. So I want to be able to give other groups permission to write to the file. So as root, I run

chmod o+w ip_forward

but I get

chmod: changing permissions of `ip_forward': Operation not permitted

Why is this so? I mean, I'm running it as root. Do I need to run it with kernel privileges? If so, how do I do that?

2. I want to make 120 files like file1, file2, file3, file4, etc
What command would I use? I guess I'd need some sort of bash script.

while i!=120; export i=1; touch file[i]; i++;

How would I script that? Or what command would I use?

I solved question 2.

#!/bin/bash
i=0
while [ $i -lt 21 ]; do
touch file$i
let i=i+1
done

easy as pie, Linux Rulez!!

Any of you guys know the answer to question 1?

Why did you want to write to /proc/sys/net/ipv4/ip_forward?

so i can turn my nic into a router, so why can't i change the permissions as root?

So you want echo 1 > /proc/sys/net/ipv4/ip_forward
What guide are you using?

I want to understand why even if the file ip_forward has root as its owner, why I can't change permissions as root giving o+x to others, or maybe even adding a suid flag to it, which also returns the same error.

I'm experimenting with some pentesting tools. I want the nic to simply forward the packets, but I want to be able to write to ip_forward as a normal user.

This should help;
http://www.google.com/search?hl=en&q...q=%2Fproc+file

Thank you, sudo -i fixed the problem.

Back to problem 2,
will do the trick. If you want to pad the #'s, then try:
Suggested reading:
1) man bash, search (case sensitive) for "Brace Expansion"
2) man seq