Why doesn't PHP-FPM 7.1 start on tcp4 with listen = 9000 on Freebsd 10.1?

Question

PHP

Greetings! I caught a problem today when configuring upstream for PHP-FPM 7.1 under FreeBSD 10.1:
with listen = 127.0.0.1:9000 php-fpm as expected - starts at 127.0.0.1:9000 tcp4, but the port is not accessible from the outside, and for upstream it is not fits.
with listen = 9000 php-fpm starts only on tcp6, of course, the port is also not available for tcp4 from the outside by telnet.
Hence the question - why? )) Where to dig? I didn't see this problem in earlier versions of PHP.
Z.Y. ;listen.allowed_clients = 127.0.0.1 did not uncomment

Answer 1

Do you still have IPv4 in your system besides 127.0.0.1? :-) bring ifconfig, and php-fpm logs too.