This is just a postlet for a) remembering how to do it and b) your information
If something changes about your network, and you run into an offending host key problem because you have enabled strict checking in your SSH’ing, you can use the following sed command to remove that key. Just replace the ‘6’ with the line number given to you and away you go!
# sed -i '6d' ~/.ssh/known_hosts
Happy Hacking!