when I use in my nginx.conf

server {
listen 8080;

I can access my index page , but whenever I changed it tp

server {
listen 80

then I cannot access it..

same issue with port 443 , I have to use port 8443 to get it running fine..

It's weird as I checked

sudo lsof -i -P | grep -i nginx
Password:
nginx 35231 root 12u IPv4 0xe906ac28eb68a51b 0t0 TCP *:80 (LISTEN)
nginx 35231 root 13u IPv4 0xe906ac28ee03851b 0t0 TCP *:8443 (LISTEN)
nginx 35231 root 14u IPv4 0xe906ac28eefe9033 0t0 TCP *:8080 (LISTEN)
nginx 35232 yves 12u IPv4 0xe906ac28eb68a51b 0t0 TCP *:80 (LISTEN)
nginx 35232 yves 13u IPv4 0xe906ac28ee03851b 0t0 TCP *:8443 (LISTEN)
nginx 35232 yves 14u IPv4 0xe906ac28eefe9033 0t0 TCP *:8080 (LISTEN)

http://stackoverflow.com/questions/7612053/binding-on-privileged-ports-ports-1024-on-mac-os-x-10-6
http://www.faqoverflow.com/apple/37418.html

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nginx for Windows http://nginx-win.ecsds.eu/

Thanks a lot ... I guessed it was something related with El Capitan, as it was running fine on Ubuntu or previous OSX versions...