improve comments about FPM listen option

1 files changed, 4 insertions, 2 deletions

diff --git a/sapi/fpm/php-fpm.conf.in b/sapi/fpm/php-fpm.conf.in
index 631bc46f42..f22c2ff8b7 100644
--- a/sapi/fpm/php-fpm.conf.in
+++ b/sapi/fpm/php-fpm.conf.in
@@ -150,11 +150,13 @@ group = @php_fpm_group@
 
 ; The address on which to accept FastCGI requests.
 ; Valid syntaxes are:
-;   'ip.add.re.ss:port'    - to listen on a TCP socket to a specific address on
+;   'ip.add.re.ss:port'    - to listen on a TCP socket to a specific IPv4 address on
 ;                            a specific port;
 ;   '[ip:6:addr:ess]:port' - to listen on a TCP socket to a specific IPv6 address on
 ;                            a specific port;
-;   'port'                 - to listen on a TCP socket to all addresses on a
+;   'port'                 - to listen on a TCP socket to all IPv4 addresses on a
+;                            specific port;
+;   '[::]:port'            - to listen on a TCP socket to all addresses on a
 ;                            specific port;
 ;   '/path/to/unix/socket' - to listen on a unix socket.
 ; Note: This value is mandatory.