deb http://ftp.utexas.edu/debian/ jessie main non-free contrib
deb-src http://ftp.utexas.edu/debian/ jessie main contrib

deb http://security.debian.org/ jessie/updates main non-free contrib
deb-src http://security.debian.org/ jessie/updates main contrib

deb http://http.debian.net/debian/ jessie main contrib non-free 

deb http://ftp.utexas.edu/debian/ jessie-updates main contrib non-free
deb-src http://ftp.utexas.edu/debian/ jessie-updates main