Install Prosody from source on Centos 6.

https://prosody.im/downloads/source/
https://prosody.im/doc/installing_from_source
https://prosody.im/doc/configure

1. download & extract
wget --no-check-certificate  https://prosody.im/downloads/source/prosody-0.9.2.tar.gz
tar xvf prosody-0.9.2.tar.gz
cd prosody-0.9.2

2. install dependencies
yum install openssl openssl-* lua5.1 liblua5.1-dev libidn11-dev libssl-dev

3. configure & make install
./configure --ostype=PRESET
make install


note : Prosody's configuration is held in a single file, prosody.cfg.lua. on centos 6 you should find it in /usr/local/etc/prosody/prosody.cfg.lua