How do I get my 4yr old male (rescued) Daschund to stop urinating in my house?

In all honesty I think you need to crate train if it is still being a problem and then if you still don't get results after awhile see a vet.

Jessica has good suggestions. I have heard it is harder to housebreak smaller dogs than larger breeds. I agree with the crating method. I would also suggest that if you haven't had him checked at a veterinarian, you do so just in case there's a medical rreason for his urination. Also, is he neutered? Just a hunch -- try implementing a strict routine and firm leadership - kind but firm...you know, you eat first, not jumping on furniture, he sits before eating...and so on.

I have worked with rescue dogs with this issue, especially small breed rescues often having housebreaking issues...The best way to do this is to follow basic rules of housebreaking, consistency, patience and watchfulness. Keep your dog at your side if inside (clip a leash to your belt loop) (or use a crate), when outside tether him to one spot and then walk away. Immediantly when he goes TONS of praise, treats, pats, toys whatever motivates him. If it is a really bad issue there are two other things you can try. One is scheduling his water break (only letting him drink at certain times, then letting him out 30min-1hr later). The other option is keeping him outside for the majority of his 'free time', bringing him only for short spans (and expanding the amount of inside time, over a month/s) .
Make sure to use Nature's Miracle pet stain (this works great) to clean up messes immediatly. Vinegar also helps deter repeat offenders.
Good Luck

Are you using a crate? that might help? otherwise, i would try keeping him on a leash in the house so you can correct him when he tries to lift his leg. I do that when we bring our dogs to new places, sometimes they want to mark out of territory.

This may sound crazy, but even if your dog is older you might be able to try the puppy pads. I used to have a daschund and had the same problems and we did the whole puppy pad thing for a while then she just started going outside. Hope this helps.

Doxies are just plain hard to housebreak. They think they are little people and should go where the people go. They are smart so you have to out smart them,but get wee wee pads during the breaking period. They will learn,but stubborn!!!

I am not sure if this will help but, have you tried the wraps for male dogs. You can get them at your local pet supplies store. I know housebreaking is hard to do sometimes, good luck!