How to install BigBlueButton 2.7 on Ubuntu server 20.04 without IPv6 support

Question

Is there a way to install BigBlueButton 2.7 on a system that can only work with IPv4 ? I've installed previous versions of BigBlueButton several times in the past. but when I tried this one, IPv6 seems to be mandatory, and i don't understand why. normally it should be optional.

I use the bbb-install.sh (that i got from here: https://github.com/bigbluebutton/bbb-install/blob/v2.7.x-release/bbb-install.sh) script on Ubuntu 20.04

This is the command i ran:

wget -qO- https://raw.githubusercontent.com/bigbluebutton/bbb-install/v2.7.x-release/bbb-install.sh | bash -s -- -w -v focal-270 -s virtual.mydomain.net -e [email protected] -g

and i'm getting this output:

Hit:1 https://download.docker.com/linux/ubuntu focal InRelease
Hit:2 http://ppa.launchpad.net/bigbluebutton/support/ubuntu focal InRelease
Hit:3 http://archive.ubuntu.com/ubuntu focal InRelease
Ign:4 https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 InRelease
Hit:5 http://security.ubuntu.com/ubuntu focal-security InRelease
Hit:6 http://ppa.launchpad.net/martin-uni-mainz/coturn/ubuntu focal InRelease
Hit:7 https://deb.nodesource.com/node_18.x nodistro InRelease
Hit:8 http://archive.ubuntu.com/ubuntu focal-updates InRelease
Hit:9 http://archive.ubuntu.com/ubuntu focal-backports InRelease
Hit:10 https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 Release
Hit:11 https://ubuntu.bigbluebutton.org/focal-270 bigbluebutton-focal InRelease
Reading package lists... Done
Warning: apt-key output should not be parsed (stdout is not a terminal)
SHELL=/bin/bash
PWD=/root
LOGNAME=root
XDG_SESSION_TYPE=tty
MOTD_SHOWN=pam
HOME=/root
LANG=en_US.UTF-8
LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.wim=01;31:*.swm=01;31:*.dwm=01;31:*.esd=01;31:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:
SSH_CONNECTION=10.10.26.115 62847 10.176.24.152 22
LESSCLOSE=/usr/bin/lesspipe %s %s
XDG_SESSION_CLASS=user
TERM=xterm-256color
LESSOPEN=| /usr/bin/lesspipe %s
USER=root
SHLVL=1
XDG_SESSION_ID=199
XDG_RUNTIME_DIR=/run/user/0
SSH_CLIENT=10.10.26.115 62847 22
XDG_DATA_DIRS=/usr/local/share:/usr/share:/var/lib/snapd/desktop
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/0/bus
SSH_TTY=/dev/pts/0
DEBIAN_FRONTEND=noninteractive
_=/usr/bin/env
Your server does not support IPV6

I can't have a public IPV6 address how can i still install ?

Answer 1

I can't have a public IPV6 address

Having a public IPv6 address is not required by BigBlueButton.

What's required is having the general IPv6 support enabled in your OS. That is, you must not boot with ipv6.disable=1 and you must not blacklist the ipv6 module via modprobe. All Linux distributions, including Ubuntu, have IPv6 support active by default; if this is missing that means you (or your container host) must've deliberately turned it off.

Most of BigBlueButton component services are pre-configured so that they would create listener sockets on AF_INET and AF_INET6, or sometimes even using the "automatic dual-stack" support where binding on INET6 also binds on IPv4. All of that is usually harmless if you do not have a global IPv6 address – the listen will still succeed, it will just be localhost-only – unless you've disabled AF_INET6 support OS-wide, in which case the service will get an "Unsupported address family" error and will likely fail to start.