# Main
deb http://http.us.debian.org/debian/ stable main non-free contrib
# Source
deb-src http://http.us.debian.org/debian/ stable main non-free contrib
# Security
deb http://security.debian.org/ stable/updates main contrib non-free
apt-get update
Once fixed you can run your usual apt-get commands.deb http://ftp.tr.debian.org/debian/ etch main
deb-src http://ftp.tr.debian.org/debian/ etch main
deb http://security.debian.org/ etch/updates main contrib
deb-src http://security.debian.org/ etch/updates main contrib
deb http://ftp.ca.debian.org/debian/ lenny main
deb-src http://ftp.ca.debian.org/debian/ lenny main
deb http://security.debian.org/ lenny/updates main
deb-src http://security.debian.org/ lenny/updates main
deb http://volatile.debian.org/debian-volatile lenny/volatile main
deb-src http://volatile.debian.org/debian-volatile lenny/volatile main
deb http://debian.mirror.iweb.ca/debian/ squeeze main
deb-src http://debian.mirror.iweb.ca/debian/ squeeze main
deb http://security.debian.org/ squeeze/updates main contrib
deb-src http://security.debian.org/ squeeze/updates main contrib
deb http://debian.mirror.iweb.ca/debian/ squeeze-updates main contrib
deb-src http://debian.mirror.iweb.ca/debian/ squeeze-updates main contrib
deb http://debian.mirror.iweb.ca/debian/ jessie main
deb-src http://debian.mirror.iweb.ca/debian/ jessie main
deb http://security.debian.org/ jessie/updates main
deb-src http://security.debian.org/ jessie/updates main
# jessie-updates, previously known as 'volatile'
deb http://debian.mirror.iweb.ca/debian/ jessie-updates main
deb-src http://debian.mirror.iweb.ca/debian/ jessie-updates main