Hi Eugenio,
Thanks for the reply.
I have only changed the config.php file.
And i could see the access_check_ex hook in the error message.
Please find below error log for both check_session.php and config.php.
Thanks in advance.
[Wed Aug 15 21:29:38.954044 2018] [core] [pid 37506] protocol.c(653): [client 10.84.4.153:58288] Request received from client: GET /install.php HTTP/1.1
[Wed Aug 15 21:29:38.954261 2018] [http] [pid 37506] http_request.c(394): [client 10.84.4.153:58288] Headers received from client:
[Wed Aug 15 21:29:38.954329 2018] [http] [pid 37506] http_request.c(398): [client 10.84.4.153:58288] Accept: image/gif, image/jpeg, image/pjpeg, application/x-ms-application, application/xaml+xml, application/x-ms-xbap, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*
[Wed Aug 15 21:29:38.954393 2018] [http] [pid 37506] http_request.c(398): [client 10.84.4.153:58288] Accept-Language: en-US,en;q=0.5
[Wed Aug 15 21:29:38.954450 2018] [http] [pid 37506] http_request.c(398): [client 10.84.4.153:58288] User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)
[Wed Aug 15 21:29:38.954523 2018] [http] [pid 37506] http_request.c(398): [client 10.84.4.153:58288] Accept-Encoding: gzip, deflate
[Wed Aug 15 21:29:38.954580 2018] [http] [pid 37506] http_request.c(398): [client 10.84.4.153:58288] Host: 10.84.4.16
[Wed Aug 15 21:29:38.954646 2018] [http] [pid 37506] http_request.c(398): [client 10.84.4.153:58288] Connection: Keep-Alive
[Wed Aug 15 21:29:38.954705 2018] [http] [pid 37506] http_request.c(398): [client 10.84.4.153:58288] Cookie: PHPSESSID=7km1h389uk07pjgu89rsp6p1c2; kop2sscan=60kcng6oism6a1vm9dr8baue91
[Wed Aug 15 21:29:38.954822 2018] [authz_core] [pid 37506] mod_authz_core.c(809): [client 10.84.4.153:58288] AH01626: authorization result of Require all granted: granted
[Wed Aug 15 21:29:38.954886 2018] [authz_core] [pid 37506] mod_authz_core.c(809): [client 10.84.4.153:58288] AH01626: authorization result of <RequireAny>: granted
[Wed Aug 15 21:29:38.954943 2018] [core] [pid 37506] request.c(304): [client 10.84.4.153:58288] request authorized without authentication by access_checker_ex hook: /install.php
[Wed Aug 15 21:29:38.974780 2018] [:error] [pid 37506] [client 10.84.4.153:58288] PHP Notice: Undefined variable: conn in /var/www/kop2sscan/include/db_functions_pdo.php on line 71
[Wed Aug 15 21:29:38.975018 2018] [:error] [pid 37506] [client 10.84.4.153:58288] PHP Fatal error: Uncaught Error: Call to a member function query() on null in /var/www/kop2sscan/include/db_functions_pdo.php:109\nStack trace:\n#0 /var/www/kop2sscan/include/db_functions_pdo.php(569): execute_db('SELECT TABLE_NA...', NULL)\n#1 /var/www/kop2sscan/include/business_logic.php(0): get_tables_list(1)\n#2 /var/www/kop2sscan/include/common_start.php(0): build_tables_names_array(0, 0)\n#3 /var/www/kop2sscan/install.php(0): unknown()\n#4 {main}\n thrown in /var/www/kop2sscan/include/db_functions_pdo.php on line 109
[Wed Aug 15 21:29:38.975209 2018] [http] [pid 37506] http_filters.c(1129): [client 10.84.4.153:58288] Response sent with status 500, headers:
[Wed Aug 15 21:29:38.975279 2018] [http] [pid 37506] http_filters.c(1136): [client 10.84.4.153:58288] Date: Wed, 15 Aug 2018 13:29:38 GMT
[Wed Aug 15 21:29:38.975337 2018] [http] [pid 37506] http_filters.c(1139): [client 10.84.4.153:58288] Server: Apache/2.4.18 (Ubuntu)
[Wed Aug 15 21:29:38.975394 2018] [http] [pid 37506] http_filters.c(958): [client 10.84.4.153:58288] Expires: Thu, 19 Nov 1981 08:52:00 GMT
[Wed Aug 15 21:29:38.975462 2018] [http] [pid 37506] http_filters.c(958): [client 10.84.4.153:58288] Cache-Control: no-store, no-cache, must-revalidate
[Wed Aug 15 21:29:38.975522 2018] [http] [pid 37506] http_filters.c(958): [client 10.84.4.153:58288] Pragma: no-cache
[Wed Aug 15 21:29:38.975578 2018] [http] [pid 37506] http_filters.c(958): [client 10.84.4.153:58288] Content-Length: 189
[Wed Aug 15 21:29:38.975634 2018] [http] [pid 37506] http_filters.c(958): [client 10.84.4.153:58288] Connection: close
[Wed Aug 15 21:29:38.975689 2018] [http] [pid 37506] http_filters.c(958): [client 10.84.4.153:58288] Content-Type: text/html; charset=utf-8
[Wed Aug 15 21:29:38.975836 2018] [core] [pid 37506] core_filters.c(525): [client 10.84.4.153:58288] core_output_filter: flushing because of FLUSH bucket
[Wed Aug 15 21:29:38.976054 2018] [core] [pid 37506] core_filters.c(525): [client 10.84.4.153:58288] core_output_filter: flushing because of FLUSH bucket
[Wed Aug 15 21:31:06.072897 2018] [core] [pid 37507] protocol.c(653): [client 10.84.4.153:58311] Request received from client: GET /check_sessions.php HTTP/1.1
[Wed Aug 15 21:31:06.073140 2018] [http] [pid 37507] http_request.c(394): [client 10.84.4.153:58311] Headers received from client:
[Wed Aug 15 21:31:06.073213 2018] [http] [pid 37507] http_request.c(398): [client 10.84.4.153:58311] Accept: image/gif, image/jpeg, image/pjpeg, application/x-ms-application, application/xaml+xml, application/x-ms-xbap, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*
[Wed Aug 15 21:31:06.073296 2018] [http] [pid 37507] http_request.c(398): [client 10.84.4.153:58311] Accept-Language: en-US,en;q=0.5
[Wed Aug 15 21:31:06.073358 2018] [http] [pid 37507] http_request.c(398): [client 10.84.4.153:58311] User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)
[Wed Aug 15 21:31:06.073420 2018] [http] [pid 37507] http_request.c(398): [client 10.84.4.153:58311] Accept-Encoding: gzip, deflate
[Wed Aug 15 21:31:06.073480 2018] [http] [pid 37507] http_request.c(398): [client 10.84.4.153:58311] Host: 10.84.4.16
[Wed Aug 15 21:31:06.073553 2018] [http] [pid 37507] http_request.c(398): [client 10.84.4.153:58311] Connection: Keep-Alive
[Wed Aug 15 21:31:06.073616 2018] [http] [pid 37507] http_request.c(398): [client 10.84.4.153:58311] Cookie: PHPSESSID=7km1h389uk07pjgu89rsp6p1c2; kop2sscan=60kcng6oism6a1vm9dr8baue91
[Wed Aug 15 21:31:06.073742 2018] [authz_core] [pid 37507] mod_authz_core.c(809): [client 10.84.4.153:58311] AH01626: authorization result of Require all granted: granted
[Wed Aug 15 21:31:06.073809 2018] [authz_core] [pid 37507] mod_authz_core.c(809): [client 10.84.4.153:58311] AH01626: authorization result of <RequireAny>: granted
[Wed Aug 15 21:31:06.073870 2018] [core] [pid 37507] request.c(304): [client 10.84.4.153:58311] request authorized without authentication by access_checker_ex hook: /check_sessions.php
[Wed Aug 15 21:31:06.090182 2018] [:error] [pid 37507] [client 10.84.4.153:58311] PHP Notice: Undefined variable: conn in /var/www/kop2sscan/include/db_functions_pdo.php on line 71
[Wed Aug 15 21:31:06.090803 2018] [:error] [pid 37507] [client 10.84.4.153:58311] PHP Fatal error: Uncaught Error: Call to a member function query() on null in /var/www/kop2sscan/include/db_functions_pdo.php:109\nStack trace:\n#0 /var/www/kop2sscan/include/db_functions_pdo.php(569): execute_db('SELECT TABLE_NA...', NULL)\n#1 /var/www/kop2sscan/include/business_logic.php(0): get_tables_list(1)\n#2 /var/www/kop2sscan/include/common_start.php(0): build_tables_names_array(0, 0)\n#3 /var/www/kop2sscan/check_sessions.php(20): include('/var/www/kop2ss...')\n#4 {main}\n thrown in /var/www/kop2sscan/include/db_functions_pdo.php on line 109
[Wed Aug 15 21:31:06.091037 2018] [http] [pid 37507] http_filters.c(1129): [client 10.84.4.153:58311] Response sent with status 500, headers:
[Wed Aug 15 21:31:06.091126 2018] [http] [pid 37507] http_filters.c(1136): [client 10.84.4.153:58311] Date: Wed, 15 Aug 2018 13:31:06 GMT
[Wed Aug 15 21:31:06.091198 2018] [http] [pid 37507] http_filters.c(1139): [client 10.84.4.153:58311] Server: Apache/2.4.18 (Ubuntu)
[Wed Aug 15 21:31:06.091270 2018] [http] [pid 37507] http_filters.c(958): [client 10.84.4.153:58311] Expires: Thu, 19 Nov 1981 08:52:00 GMT
[Wed Aug 15 21:31:06.091355 2018] [http] [pid 37507] http_filters.c(958): [client 10.84.4.153:58311] Cache-Control: no-store, no-cache, must-revalidate
[Wed Aug 15 21:31:06.091429 2018] [http] [pid 37507] http_filters.c(958): [client 10.84.4.153:58311] Pragma: no-cache
[Wed Aug 15 21:31:06.091498 2018] [http] [pid 37507] http_filters.c(958): [client 10.84.4.153:58311] Content-Length: 189
[Wed Aug 15 21:31:06.091568 2018] [http] [pid 37507] http_filters.c(958): [client 10.84.4.153:58311] Connection: close
[Wed Aug 15 21:31:06.091637 2018] [http] [pid 37507] http_filters.c(958): [client 10.84.4.153:58311] Content-Type: text/html; charset=utf-8
[Wed Aug 15 21:31:06.091718 2018] [core] [pid 37507] core_filters.c(525): [client 10.84.4.153:58311] core_output_filter: flushing because of FLUSH bucket
[Wed Aug 15 21:31:06.091842 2018] [core] [pid 37507] core_filters.c(525): [client 10.84.4.153:58311] core_output_filter: flushing because of FLUSH bucket