Improving the external IP detection by bbb-conf

[insightc...@t-online.de]

I've been looking into an easy fix to detect the correct external IP also when using the OpenVZ environment and it probably really simple, since when issuing an ifconfig on an OpenVZ Ubuntu14.04 the network interface has a quite unique name (venet0:0). By simply checking for that string in ifconfig, the environment can be detected and in that case we simply choose the last in stead of the first ip on the ifconfig list, which is the external IP in OpenVZ, I tried this on several OpenVZ boxes and it works on OpenVZ and it also detects the correct IP in KVM which is similar to a dedicated server. Here is the code segment to replace the IP= line in bbb-conf:

# Determine IP so it works on multilingual installations
#
if [[ `sudo ifconfig` == *venet0:0* ]]
then
   # IP detection for OpenVZ environment
   IP=$(ifconfig | grep -v '127.0.0.1' | grep -E "[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*" | tail -1 | cut -d: -f2 | awk '{ print $1}')
else
   # IP detection for regular environment
   IP=$(ifconfig | grep -v '127.0.0.1' | grep -E "[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*" | head -1 | cut -d: -f2 | awk '{ print $1}')
fi
MEM=`free -m | grep Mem | awk '{ print $2}'`

This should avoid several "My WebRTC audio isn't working" posts...

Best regards
Oliver

[Fred Dixon]

Many thanks Oliver!

We'll test this internally towards adding it to the next update for BigBlueButton 0.9.0-beta.

Regards,... Fred

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