nginx 0.9.5 *) Change: now nginx uses a default listen backlog value -1 on Linux. Thanks to Andrei Nigmatulin. *) Feature: the "utf8" parameter of "geoip_country" and "geoip_city" directives. Thanks to Denis F. Latypoff. *) Bugfix: in a default "proxy_redirect" directive if "proxy_pass" directive has no URI part. Thanks to Maxim Dounin. *) Bugfix: an "error_page" directive did not work with nonstandard error codes; the bug had appeared in 0.8.53. Thanks to Maxim Dounin.

--- a/src/os/unix/ngx_linux_config.h
+++ b/src/os/unix/ngx_linux_config.h
@@ -88,7 +88,7 @@ typedef struct iocb  ngx_aiocb_t;
 #endif
 
 
-#define NGX_LISTEN_BACKLOG        511
+#define NGX_LISTEN_BACKLOG        -1
 
 
 #if defined TCP_DEFER_ACCEPT && !defined NGX_HAVE_DEFERRED_ACCEPT