To save you all a click and several paragraphs of useless text.

1. Use a large pot.
2. Fill the pot with cold water.
3. Don’t skimp on the salt.
4. Do not put oil in the pot.
5. Wait until the water reaches a stable boil to add your pasta.
6. Stir, stir, stir.
7. Remove the lid.
8. Keep time, and consistently test.
9. Don’t pour all the pasta water down the drain. * Or do if you aren’t making a sauce.
10. Don’t rinse cooked pasta.