cat  /etc/apt/sources.list

root@Microknoppix:/home/knoppix#  
root@Microknoppix:/home/knoppix#  
root@Microknoppix:/home/knoppix# cat /etc/apt/sources.list|more
# Debian/Buster is the stable base for this installation
deb http://archive.debian.org/debian buster main contrib non-free
deb http://archive.debian.org/debian-security buster/updates main contrib non-free
# deb http://security.debian.org stable/updates main contrib non-free
deb http://security.debian.org/debian-security stable-security main contrib non-free
deb http://security.debian.org/debian-security testing-security main contrib non-free

# testing/unstable/experimental contain newer versions, but
# packages from there are not being installed by default, unless
# they came from there in the first place.
#deb http://ftp.de.debian.org/debian testing main contrib non-free
#deb http://ftp.de.debian.org/debian unstable main contrib non-free
#deb http://ftp.de.debian.org/debian experimental main contrib non-free

# Debian/Squeeze was the prvious "stable". OpenSCAD is still installed
# from there, until https://github.com/openscad/openscad/issues/2933
# is fixed.
#deb http://ftp.de.debian.org/debian oldstable main contrib non-free
# Old openjfx for mediathekview
# deb http://ftp.de.debian.org/debian oldoldstable main contrib non-free

# Debian/volatile contains quickly changing data like spam- and virusfilter databases
# Does not exist anymore
# deb http://volatile.debian.org/debian-volatile stable/volatile main contrib non-free  
#deb http://ftp.de.debian.org/debian stable-updates main contrib non-free

# Former Knoppix repository (alioth closed by Debian in 2018)
# deb http://debian-knoppix.alioth.debian.org ./

# x2go
# deb http://x2go.obviously-nice.de/deb/ lenny main
#deb http://packages.x2go.org/debian squeeze main
#deb http://packages.x2go.org/debian wheezy main
#deb http://packages.x2go.org/debian sid main

# Debian Multimedia, contains non-free software like acrobat reader
# deb http://www.deb-multimedia.org squeeze main non-free

# eviacam
#deb http://ppa.launchpad.net/cesar-crea-si/eviacam/ubuntu utopic main
#deb-src http://ppa.launchpad.net/cesar-crea-si/eviacam/ubuntu utopic main
#deb http://ppa.launchpad.net/cesar-crea-si/eviacam/ubuntu vivid main
#deb-src http://ppa.launchpad.net/cesar-crea-si/eviacam/ubuntu vivid main
#deb http://ppa.launchpad.net/cesar-crea-si/eviacam/ubuntu trusty main
#deb-src http://ppa.launchpad.net/cesar-crea-si/eviacam/ubuntu trusty main
deb [arch=i386,amd64] http://dl.winehq.org/wine-builds/debian/ sid main
root@Microknoppix:/home/knoppix#  
root@Microknoppix:/home/knoppix#  
root@Microknoppix:/home/knoppix#