Debian 6 contains Postgres 9.1 installation installed from Debian backports in 5432 port
How to install Postgres 9.3 also on this server. I found instructions in http://www.postgresql.org/download/linux/debian/
Create the file /etc/apt/sources.list.d/pgdg.list, and add a line for the repository
deb http://apt.postgresql.org/pub/repos/apt/ squeeze-pgdg main
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | \
sudo apt-key add -
sudo apt-get update
apt-get install postgresql-9.3
Will this keep existing 9.1 installation ? In what port new installed postgres will be listen ?