Oh thank you, yes that worked on my pre-built. I will install the default and do the same too. Thank you.

Also please : with the pre-built, can we give an alternate location to install ? How?

I would like to install nginx on a seperate directory on my Ubuntu 14.04 LTS. Can I use the pre built version for that? How do it? Download the deb and run the command from terminal with the --prefix=/prefix/apps/ngx/n1_12_0 option?

Thank you!