How do you setup a minecraft server using linksys router, or could someone host a private one for me?

i have tried every way i have looked up and every way i can think of to get a server up and running using linksys, my friend had a server that worked and all of a sudden stopped. it keeps saying connection timed out: connection. if you can help me please post here or email me at my junk email,

or if you would host a private one for me and my friends