Nginx NGINX Dynamic Modules: How They Work

Centmin Mod 123.09beta and newer branches support Nginx dynamic modules (FAQ item 39). Nginx posted a new article explaining how they work - NGINX Dynamic Modules: How We Implemented Them

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ah learnt something new I need to add to Centmin Mod 123.09beta01's Nginx builds

technically this should allow Centmin Mod 123.09beta01's Nginx to just drop in Nginx dynamic modules + a load module line to use the Nginx module as intended rather than recompiling via centmin.sh menu option 4. Need to test this

dynamic modules include file /usr/local/nginx/conf/dynamic-modules.conf

Code (Text):

load_module "modules/ngx_http_image_filter_module.so";
load_module "modules/ngx_http_fancyindex_module.so";
load_module "modules/ngx_stream_module.so";

dynamic module directory at /usr/local/nginx/modules

Code (Text):

-rwxr-xr-x   1 root root  55K Apr  8 11:41 ngx_http_fancyindex_module.so
-rwxr-xr-x   1 root root  55K Apr  8 11:31 ngx_http_fancyindex_module.so.old
-rwxr-xr-x   1 root root  58K Apr  8 11:41 ngx_http_image_filter_module.so
-rwxr-xr-x   1 root root  58K Apr  8 11:31 ngx_http_image_filter_module.so.old
-rwxr-xr-x   1 root root 471K Apr  8 11:41 ngx_stream_module.so
-rwxr-xr-x   1 root root 470K Apr  8 11:31 ngx_stream_module.so.old

now enable ngx_pagespeed as a dynamic module via persistent config file /etc/centminmod/custom_config.inc and recompile via centmin.sh menu option 4

Code (Text):

NGXDYNAMIC_NGXPAGESPEED='y'
NGINX_PAGESPEED='y'

dynamic modules include file /usr/local/nginx/conf/dynamic-modules.conf loading the newly enabled ngx_pagespeed dynamic module from /usr/local/nginx/modules/ngx_pagespeed.so

Code (Text):

load_module "modules/ngx_http_image_filter_module.so";
load_module "modules/ngx_http_fancyindex_module.so";
load_module "modules/ngx_pagespeed.so";
load_module "modules/ngx_stream_module.so";

dynamic module directory at /usr/local/nginx/modules

Code (Text):

-rwxr-xr-x   1 root root  57K Apr  8 11:58 ngx_http_fancyindex_module.so
-rwxr-xr-x   1 root root  55K Apr  8 11:41 ngx_http_fancyindex_module.so.old
-rwxr-xr-x   1 root root  56K Apr  8 11:58 ngx_http_image_filter_module.so
-rwxr-xr-x   1 root root  58K Apr  8 11:41 ngx_http_image_filter_module.so.old
-rwxr-xr-x   1 root root  16M Apr  8 11:58 ngx_pagespeed.so
-rwxr-xr-x   1 root root 486K Apr  8 11:58 ngx_stream_module.so
-rwxr-xr-x   1 root root 471K Apr  8 11:41 ngx_stream_module.so.old

centmin.sh menu option 4 auto backs up nginx dynamic modules at /usr/local/nginx/modules to a separate directory at /usr/local/nginx/modules.copy so you can revert to previous version just dropping the nginx dynamic module from backup directory /usr/local/nginx/modules.copy to /usr/local/nginx/modules directory. I guess with --with-compat now added, you could drop the same nginx dynamic modules into other Centmin Mod 123.09beta01 Nginx instances without needing to recompile Nginx via centmin.sh menu option 4 now

backup dynamic modules to /usr/local/nginx/modules.copy

Code (Text):

-rwxr-xr-x   1 root root  57K Apr  8 11:58 ngx_http_fancyindex_module.so
-rwxr-xr-x.  1 root root  55K Apr  8 11:41 ngx_http_fancyindex_module.so.old
-rwxr-xr-x   1 root root  56K Apr  8 11:58 ngx_http_image_filter_module.so
-rwxr-xr-x.  1 root root  58K Apr  8 11:41 ngx_http_image_filter_module.so.old
-rwxr-xr-x   1 root root  16M Apr  8 11:58 ngx_pagespeed.so
-rwxr-xr-x   1 root root 486K Apr  8 11:58 ngx_stream_module.so
-rwxr-xr-x.  1 root root 471K Apr  8 11:41 ngx_stream_module.so.old

Let's test this out by disabling Nginx pagespeed again by removing persistent config variables in /etc/centminmod/custom_config.inc and recompile via centmin.sh menu option 4

set to 'n' or remove these 2 variables BEFORE recompile via centmin.sh menu option 4

Code (Text):

NGXDYNAMIC_NGXPAGESPEED='n'
NGINX_PAGESPEED='n'

end up without ngx_pagespeed.so in /usr/local/nginx/modules directory

Code (Text):

dynamic module directory at /usr/local/nginx/modules
total 1.2M
drwxr-xr-x.  2 root root 4.0K Apr  8 12:10 .
drwxr-xr-x. 11 root root 4.0K Apr  8 11:31 ..
-rwxr-xr-x   1 root root  55K Apr  8 12:10 ngx_http_fancyindex_module.so
-rwxr-xr-x   1 root root  57K Apr  8 11:58 ngx_http_fancyindex_module.so.old
-rwxr-xr-x   1 root root  58K Apr  8 12:10 ngx_http_image_filter_module.so
-rwxr-xr-x   1 root root  56K Apr  8 11:58 ngx_http_image_filter_module.so.old
-rwxr-xr-x   1 root root 471K Apr  8 12:10 ngx_stream_module.so
-rwxr-xr-x   1 root root 486K Apr  8 11:58 ngx_stream_module.so.old

then in existing Nginx vhost enable ngx_pagespeed include files i.e. in /usr/local/nginx/conf/conf.d/newdomain2.com.conf uncomment 3 include files

from

Code (Text):

# ngx_pagespeed & ngx_pagespeed handler
#include /usr/local/nginx/conf/pagespeed.conf;
#include /usr/local/nginx/conf/pagespeedhandler.conf;
#include /usr/local/nginx/conf/pagespeedstatslog.conf;

to

Code (Text):

# ngx_pagespeed & ngx_pagespeed handler
include /usr/local/nginx/conf/pagespeed.conf;
include /usr/local/nginx/conf/pagespeedhandler.conf;
include /usr/local/nginx/conf/pagespeedstatslog.conf;

try enable ngx_pagespeed now via Centmin Mod custom pscontrol command

Code (Text):

pscontrol on

nginx failed to restart

Code (Text):

pscontrol on
systemctl restart nginx.service
Job for nginx.service failed because the control process exited with error code. See "systemctl status nginx.service" and "journalctl -xe" for details.

because ngx_pagespeed module wasn't installed so doesn't recognise pagespeed variable in include file /usr/local/nginx/conf/pagespeed.conf

Code (Text):

nginx -t
nginx: [emerg] unknown directive "pagespeed" in /usr/local/nginx/conf/pagespeed.conf:1
nginx: configuration file /usr/local/nginx/conf/nginx.conf test failed

Now let's drop the ngx_pagespeed.so dynamic module in from backup directory. Just copying the backup directory /usr/local/nginx/modules.copy/ngx_pagespeed.so module into /usr/local/nginx/modules and adding a load line to /usr/local/nginx/conf/dynamic-modules.conf for

Code (Text):

load_module "modules/ngx_pagespeed.so";

so it becomes

Code (Text):

load_module "modules/ngx_http_image_filter_module.so";
load_module "modules/ngx_http_fancyindex_module.so";
load_module "modules/ngx_pagespeed.so";
load_module "modules/ngx_stream_module.so";

copy backup ngx_pagespeed.so module from /usr/local/nginx/modules.copy/ngx_pagespeed.so to /usr/local/nginx/modules/ngx_pagespeed.so

Code (Text):

cp -a /usr/local/nginx/modules.copy/ngx_pagespeed.so /usr/local/nginx/modules/ngx_pagespeed.so

restart nginx

Code (Text):

ngxrestart

seems Nginx still failed to restart

Code (Text):

ngxrestart
Restarting nginx (via systemctl):  Job for nginx.service failed because the control process exited with error code. See "systemctl status nginx.service" and "journalctl -xe" for details.
                                                           [FAILED]

but not due to unrecognised ngx_pagespeed pagespeed variable.

Code (Text):

nginx -t
nginx: [emerg] "gzip_types" directive FileCachePath must be set in /usr/local/nginx/conf/nginx.conf:148
nginx: configuration file /usr/local/nginx/conf/nginx.conf test failed

reason is /usr/local/nginx/conf/nginx.conf has an include file for ngx_pagespeed that is only auto enabled when NGINX_PAGESPEED='y' variable is set. Otherwise the include file is commented out

Code (Text):

#include /usr/local/nginx/conf/pagespeedadmin.conf;

so manually uncomment

Code (Text):

include /usr/local/nginx/conf/pagespeedadmin.conf;

test Nginx config

Code (Text):

nginx -t 
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

now enable ngx_pagespeed via pscontrol

Code (Text):

pscontrol on
systemctl restart nginx.service

working ! So I enabled ngx_pagespeed without recompiling Centmin Mod 123.09beta01 Nginx just by dropping in ngx_pagespeed.so dynamic module into /usr/local/nginx/modules and adding a load line to /usr/local/nginx/conf/dynamic-modules.conf

Other Nginx Dynamic Modules

Centmin Mod 123.09beta01's Nginx has other nginx dynamic modules supported via persistent config file set up /etc/centminmod/custom_config.inc and these include the below listing - some are enabled by default for dynamic compilation some are not.

Code (Text):

NGXDYNAMIC_NJS='n'
NGXDYNAMIC_XSLT='n'
NGXDYNAMIC_PERL='n'
NGXDYNAMIC_IMAGEFILTER='y'
NGXDYNAMIC_GEOIP='n'
NGXDYNAMIC_STREAM='y'
NGXDYNAMIC_STREAMGEOIP='n'  # nginx 1.11.3+ option http://hg.nginx.org/nginx/rev/558db057adaa
NGXDYNAMIC_STREAMREALIP='n' # nginx 1.11.4+ option http://hg.nginx.org/nginx/rev/9cac11efb205
NGXDYNAMIC_HEADERSMORE='n'
NGXDYNAMIC_SETMISC='n'
NGXDYNAMIC_ECHO='n'
NGXDYNAMIC_LUA='n'          #
NGXDYNAMIC_SRCCACHE='n'
NGXDYNAMIC_DEVELKIT='n'     #
NGXDYNAMIC_MEMC='n'
NGXDYNAMIC_REDISTWO='n'
NGXDYNAMIC_NGXPAGESPEED='n'
NGXDYNAMIC_BROTLI='y'
NGXDYNAMIC_FANCYINDEX='y'
NGXDYNAMIC_HIDELENGTH='y'

 

Updated 123.09beta01 routine to now add support to a custom include file /usr/local/nginx/conf/dynamic-modules-includes.conf that is included in /usr/local/nginx/conf/dynamic-modules.conf so you can place custom load_module nginx dynamic modules in /usr/local/nginx/conf/dynamic-modules-includes.conf to persist and survive.

Code (Text):

# place custom load_module lines in this dynamic-modules-includes.conf
# file so that they persistent i.e. for manually dropped in dynamic modules
include /usr/local/nginx/conf/dynamic-modules-includes.conf;
load_module "modules/ngx_http_image_filter_module.so";
load_module "modules/ngx_http_fancyindex_module.so";
load_module "modules/ngx_pagespeed.so";
load_module "modules/ngx_stream_module.so";

Just need to figure out how to make manually dropped in nginx dynamic modules placed in /usr/local/nginx/modules survive and persist on subsequent nginx compiles as currently Centmin Mod wipes the /usr/local/nginx/modules it detects as not enabled via persistent /etc/centminmod/custom_config.inc set variables i.e. if NGINX_PAGESPEED='n' and NGXDYNAMIC_NGXPAGESPEED='n' is set.

Updated 123.09beta01 with a solution for persistent nginx dynamic modules manually dropped into /usr/local/nginx/modules directory. Add NGXDYNAMIC_MANUALOVERRIDE='n' variable to optional override nginx dynamic module purge

When set in centmin mod persistent config file /etc/centminmod/custom_config.inc to NGXDYNAMIC_MANUALOVERRIDE='y' you can override centmin mod default behavior to purge manually dropped in nginx dynamic modules from /usr/local/nginx/modules so they survive and persistent on nginx recompiles

 

Nginx Dynamic Module Support Updates

Should have working nginx dynamic module manual drop in of modules working with these 4 committed updates in 123.09beta01+ and newer versions

• https://community.centminmod.com/th...-with-with-compat-flag-in-123-09beta01.11191/
• https://community.centminmod.com/th...-module-routine-update-in-123-09beta01.11192/
• https://community.centminmod.com/th...c-module-setup-routine-in-123-09beta01.11193/
• https://community.centminmod.com/threads/add-ngxdynamic_manualoverride-n-variable-to-optional-override-nginx….11194/

So for manually dropped in nginx dynamic modules placed in /usr/local/nginx/modules, you can set in centmin mod persistent config file /etc/centminmod/custom_config.inc to NGXDYNAMIC_MANUALOVERRIDE='y' you can override centmin mod default behavior to purge manually dropped in nginx dynamic modules from /usr/local/nginx/modules and then add to /usr/local/nginx/conf/dynamic-modules-includes.conf the load_module line i.e.

Code (Text):

load_module "modules/ngx_pagespeed.so";

Then the Nginx dynamic module will persist even if it's control variable is set to = 'n' i.e. if NGINX_PAGESPEED='n' and NGXDYNAMIC_NGXPAGESPEED='n' is set.

Example

So I have in persistent config file /etc/centminmod/custom_config.inc set variables

Code (Text):

NGINX_PAGESPEED='n'
NGXDYNAMIC_NGXPAGESPEED='n'

so Nginx doesn't have ngx_pagespeed configure like in Nginx -V output

include file /usr/local/nginx/conf/dynamic-modules.conf in nginx.conf has contents below notice no ngx_pagespeed.so module load_module line it's removed

Code (Text):

# place custom load_module lines in this dynamic-modules-includes.conf
# file so that they persistent i.e. for manually dropped in dynamic modules
include /usr/local/nginx/conf/dynamic-modules-includes.conf;
load_module "modules/ngx_http_image_filter_module.so";
load_module "modules/ngx_http_fancyindex_module.so";
load_module "modules/ngx_stream_module.so";

but in include file /usr/local/nginx/conf/dynamic-modules-includes.conf i manually added it to survive

Code (Text):

cat /usr/local/nginx/conf/dynamic-modules-includes.conf
load_module "modules/ngx_pagespeed.so";

now check /usr/local/nginx/modules directory which i manually dropped a backed up copy of ngx_pagespeed.so into and it survived due to centmin mod persistent config file /etc/centminmod/custom_config.inc set variable for NGXDYNAMIC_MANUALOVERRIDE='y'

Code (Text):

-rwxr-xr-x   1 root root  55K Apr  8 14:18 ngx_http_fancyindex_module.so
-rwxr-xr-x   1 root root  57K Apr  8 14:06 ngx_http_fancyindex_module.so.old
-rwxr-xr-x   1 root root  58K Apr  8 14:18 ngx_http_image_filter_module.so
-rwxr-xr-x   1 root root  56K Apr  8 14:06 ngx_http_image_filter_module.so.old
-rwxr-xr-x   1 root root  16M Apr  8 14:06 ngx_pagespeed.so
-rwxr-xr-x   1 root root 471K Apr  8 14:18 ngx_stream_module.so
-rwxr-xr-x   1 root root 486K Apr  8 14:06 ngx_stream_module.so.old

Enabling All Nginx Dynamic modules

So to do it one time and enable all Nginx dynamic modules once off to get a backup copy of all nginx dynamic modules saved in /usr/local/nginx/modules.copy first set in persistent config file /etc/centminmod/custom_config.inc the following variables and recompile nginx via centmin.sh menu option 4

Code (Text):

/etc/centminmod/custom_config.inc
NGINX_PAGESPEED='y'
NGINX_LIBBROTLI='y'

NGXDYNAMIC_MANUALOVERRIDE='y' # set to 'y' if you want to manually drop in nginx dynamic modules into /usr/local/nginx/modules
NGXDYNAMIC_NJS='y'
NGXDYNAMIC_XSLT='y'
NGXDYNAMIC_PERL='y'
NGXDYNAMIC_IMAGEFILTER='y'
NGXDYNAMIC_GEOIP='y'
NGXDYNAMIC_STREAM='y'
NGXDYNAMIC_STREAMGEOIP='y'  # nginx 1.11.3+ option http://hg.nginx.org/nginx/rev/558db057adaa
NGXDYNAMIC_STREAMREALIP='y' # nginx 1.11.4+ option http://hg.nginx.org/nginx/rev/9cac11efb205
NGXDYNAMIC_HEADERSMORE='y'
NGXDYNAMIC_SETMISC='y'
NGXDYNAMIC_ECHO='y'
NGXDYNAMIC_LUA='y'          #
NGXDYNAMIC_SRCCACHE='y'
NGXDYNAMIC_DEVELKIT='y'     #
NGXDYNAMIC_MEMC='y'
NGXDYNAMIC_REDISTWO='y'
NGXDYNAMIC_NGXPAGESPEED='y'
NGXDYNAMIC_BROTLI='y'
NGXDYNAMIC_FANCYINDEX='y'
NGXDYNAMIC_HIDELENGTH='y'

Resulting nginx config would be

Your /usr/local/nginx/conf/dynamic-modules.conf include will end up with load_module lines as follows. Not all modules are listed as the above NGXDYNAMIC_* variables only control if Nginx module is statically or dynamically compiled. There is a corresponding variable to control whether the Nginx module is installed at all which may default to disabled unless you specify in persistent config file the enabled version i.e. NGINX_PAGESPEED='y' and NGINX_LIBBROTLI='y'

Code (Text):

# place custom load_module lines in this dynamic-modules-includes.conf
# file so that they persistent i.e. for manually dropped in dynamic modules
include /usr/local/nginx/conf/dynamic-modules-includes.conf;
load_module "modules/ngx_http_image_filter_module.so";
load_module "modules/ngx_http_headers_more_filter_module.so";
load_module "modules/ndk_http_module.so";
load_module "modules/ngx_http_memc_module.so";
load_module "modules/ngx_http_srcache_filter_module.so";
load_module "modules/ngx_http_set_misc_module.so";
load_module "modules/ngx_http_echo_module.so";
load_module "modules/ngx_http_redis2_module.so";
load_module "modules/ngx_http_fancyindex_module.so";
load_module "modules/ngx_pagespeed.so";
load_module "modules/ngx_http_brotli_filter_module.so";
load_module "modules/ngx_http_brotli_static_module.so";
load_module "modules/ngx_stream_module.so";
load_module "modules/ngx_stream_geoip_module.so";
load_module "modules/ngx_http_geoip_module.so";

and your /usr/local/nginx/modules directory

Code (Text):

-rwxr-xr-x   1 root root  48K Apr  8 15:55 ndk_http_module.so
-rwxr-xr-x   1 root root  43K Apr  8 15:38 ndk_http_module.so.old
-rwxr-xr-x   1 root root 1.3M Apr  8 15:55 ngx_http_brotli_filter_module.so
-rwxr-xr-x   1 root root  34K Apr  8 15:55 ngx_http_brotli_static_module.so
-rwxr-xr-x   1 root root 210K Apr  8 15:55 ngx_http_echo_module.so
-rwxr-xr-x   1 root root 195K Apr  8 15:38 ngx_http_echo_module.so.old
-rwxr-xr-x   1 root root  57K Apr  8 15:55 ngx_http_fancyindex_module.so
-rwxr-xr-x   1 root root  55K Apr  8 15:38 ngx_http_fancyindex_module.so.old
-rwxr-xr-x   1 root root  51K Apr  8 15:55 ngx_http_geoip_module.so
-rwxr-xr-x   1 root root  48K Apr  8 15:38 ngx_http_geoip_module.so.old
-rwxr-xr-x   1 root root  97K Apr  8 15:55 ngx_http_headers_more_filter_module.so
-rwxr-xr-x   1 root root  96K Apr  8 15:38 ngx_http_headers_more_filter_module.so.old
-rwxr-xr-x   1 root root  56K Apr  8 15:55 ngx_http_image_filter_module.so
-rwxr-xr-x   1 root root  58K Apr  8 15:38 ngx_http_image_filter_module.so.old
-rwxr-xr-x   1 root root 148K Apr  8 15:55 ngx_http_memc_module.so
-rwxr-xr-x   1 root root 131K Apr  8 15:38 ngx_http_memc_module.so.old
-rwxr-xr-x   1 root root  98K Apr  8 15:55 ngx_http_redis2_module.so
-rwxr-xr-x   1 root root  95K Apr  8 15:38 ngx_http_redis2_module.so.old
-rwxr-xr-x   1 root root 217K Apr  8 15:55 ngx_http_set_misc_module.so
-rwxr-xr-x   1 root root 205K Apr  8 15:38 ngx_http_set_misc_module.so.old
-rwxr-xr-x   1 root root 137K Apr  8 15:55 ngx_http_srcache_filter_module.so
-rwxr-xr-x   1 root root 131K Apr  8 15:38 ngx_http_srcache_filter_module.so.old
-rwxr-xr-x   1 root root  16M Apr  8 15:55 ngx_pagespeed.so
-rwxr-xr-x   1 root root  16M Apr  8 14:06 ngx_pagespeed.so.old
-rwxr-xr-x   1 root root  43K Apr  8 15:55 ngx_stream_geoip_module.so
-rwxr-xr-x   1 root root  39K Apr  8 15:38 ngx_stream_geoip_module.so.old
-rwxr-xr-x   1 root root 458K Apr  8 15:55 ngx_stream_module.so
-rwxr-xr-x   1 root root 451K Apr  8 15:38 ngx_stream_module.so.old

and your backup /usr/local/nginx/modules.copy directory which

Code (Text):

-rwxr-xr-x   1 root root  48K Apr  8 15:55 ndk_http_module.so
-rwxr-xr-x   1 root root  43K Apr  8 15:38 ndk_http_module.so.old
-rwxr-xr-x   1 root root 1.3M Apr  8 15:55 ngx_http_brotli_filter_module.so
-rwxr-xr-x   1 root root  34K Apr  8 15:55 ngx_http_brotli_static_module.so
-rwxr-xr-x   1 root root 210K Apr  8 15:55 ngx_http_echo_module.so
-rwxr-xr-x   1 root root 195K Apr  8 15:38 ngx_http_echo_module.so.old
-rwxr-xr-x   1 root root  57K Apr  8 15:55 ngx_http_fancyindex_module.so
-rwxr-xr-x.  1 root root  55K Apr  8 15:38 ngx_http_fancyindex_module.so.old
-rwxr-xr-x   1 root root  51K Apr  8 15:55 ngx_http_geoip_module.so
-rwxr-xr-x   1 root root  48K Apr  8 15:38 ngx_http_geoip_module.so.old
-rwxr-xr-x   1 root root  97K Apr  8 15:55 ngx_http_headers_more_filter_module.so
-rwxr-xr-x   1 root root  96K Apr  8 15:38 ngx_http_headers_more_filter_module.so.old
-rwxr-xr-x   1 root root  56K Apr  8 15:55 ngx_http_image_filter_module.so
-rwxr-xr-x.  1 root root  58K Apr  8 15:38 ngx_http_image_filter_module.so.old
-rwxr-xr-x   1 root root 148K Apr  8 15:55 ngx_http_memc_module.so
-rwxr-xr-x   1 root root 131K Apr  8 15:38 ngx_http_memc_module.so.old
-rwxr-xr-x   1 root root  98K Apr  8 15:55 ngx_http_redis2_module.so
-rwxr-xr-x   1 root root  95K Apr  8 15:38 ngx_http_redis2_module.so.old
-rwxr-xr-x   1 root root 217K Apr  8 15:55 ngx_http_set_misc_module.so
-rwxr-xr-x   1 root root 205K Apr  8 15:38 ngx_http_set_misc_module.so.old
-rwxr-xr-x   1 root root 137K Apr  8 15:55 ngx_http_srcache_filter_module.so
-rwxr-xr-x   1 root root 131K Apr  8 15:38 ngx_http_srcache_filter_module.so.old
-rwxr-xr-x   1 root root  16M Apr  8 15:55 ngx_pagespeed.so
-rwxr-xr-x   1 root root  16M Apr  8 14:06 ngx_pagespeed.so.old
-rwxr-xr-x   1 root root  43K Apr  8 15:55 ngx_stream_geoip_module.so
-rwxr-xr-x   1 root root  39K Apr  8 15:38 ngx_stream_geoip_module.so.old
-rwxr-xr-x   1 root root 458K Apr  8 15:55 ngx_stream_module.so
-rwxr-xr-x.  1 root root 451K Apr  8 15:38 ngx_stream_module.so.old