maybe someone can help

I know this is a php list but some one may be able to help me out so here goes it. running php, mysql on a linux(7.1) server I ,am trying to set up mysql so i can connect to it remotely from home as well as from at work I keep getting the error "host yada yada yada is not allowed to connect to this mysql server" I know i have to grant permission and temporarily would like to grant permission to all who attempt to login (another remote company will be setting up a web app on it in the next couple days) but i have tried and failed several times, have read through mysql manual more times than i care to admit. id appreciate any help you all can give, Thanks