I have standard RH9 Linux with standard ext3 filesystem.

I have 512 MB of RAM and plan to go to 1GB of RAM tomorrow with a new
RAM chip. My swap partition is set to approximately double the RAM
size.

1. Do I need to type some command after adding RAM to manually
increase the size of the swap partition?

2. Will the swap partition automatically increase and I won't need to
type a command manually?

3. Can I increase it without risk to whatever else is on the disk, if
I have available space?

4. What size should it be? Should it be RAM x2 + 64MB, or is there a
more preferrable setting?

Thank you.