How to get my daughter off of the pacifier?

The first part of the problem is trying to get my daughter off of the pacifier. She is only six months old but greatly depends on her pacifier. I don't want her to keep using it for much longer so my first question is how do I get her to not use it? Do I just deal with her crying or are there other ways to get her off of it? My second question is what to do at night. She wakes up crying a couple of times every night. As soon as I give her the pacifier she falls right back to sleep. How do I fix this? Will it stop as soon as I get her off of the pacifier? Thanks for you tips!