id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
1400	test the configuration file failed in v1.12.2, but not in v1.12.1	liying.cn.2010@…		"I upgraded to the latest v1.12.2, and when we test the configuration file, it failed with the following error message: 


{{{
/usr/sbin/nginx -t -c /home/www/etc/nginx.conf
nginx: the configuration file /home/www/etc/nginx.conf syntax is ok
nginx: [emerg] bind() to 0.0.0.0:80 failed (13: Permission denied)
nginx: configuration file /home/www/etc/nginx.conf test failed
}}}


I runned this command using user ""www"", which has no permission to bind to port 80, I understand this part.

But in the old v1.12.1, same command can be executed with no error. This error only happen in the new v1.12.2
Looks like the new v1.12.2 trying to bind to the port even in the ""test the configuration file"" mode, but the old v1.12.1 didn't do this.

I looked at the source code, may be this change is the reason??
https://github.com/nginx/nginx/commit/cff518295514b19f2ac5db8bd887c2124845dea0

 "	defect	closed	major		other	1.12.x	invalid			Linux hostname 2.6.32-696.1.1.el6.x86_64 #1 SMP Tue Apr 11 17:13:24 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.12.2
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-18) (GCC)
built with OpenSSL 1.0.1e-fips 11 Feb 2013
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -pie'"