We wish to configure SAP Web Dispatcher (WDP) as a reverse proxy. For this we've installed using sapinst SAP Web Dispatcher Version 7.00.11, multithreaded, ASCII, 64 BIT Patch Level 140 which was manally updated to Version 7.10.1, multithreaded, ASCII, 64 BIT Patch Level 152.
The SAP WDP server is in DMZ whereas the Enterprise Portal servers are in the intranet.
The updated SAP WDP is available in /sapmnt/<SID>/exe and not in a seperate directory (/usr/sap/<SID>/sapwebdisp) as per SAP note 908097. The SAP WDP has been installed on a standalone machine with instance number 00.
I've configured the Sap WDP with the -bootstrap option. The -checkconfig option completes with 0 warning 0 errors.
The TCP ports between SAP WDP and Enterprise Portal 7.0 SP14 servers are opened in the firewall confirmed as per note 552286. Also, required ports 22 & 8100 are opened from my computer to the SAP WDP Server.
Yet when I try to connect to the administrator interface with the URL http://<Web_Disp_IP>:8100/sap/wdisp/admin/default.html, I receive the following text on the browser:
Network Error (tcp_error)
A communication error occurred: "Operation timed out"
The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time.
Similar message is received even if the SAP WDP is installed in a seperate directory.
Has anyone come across a similar issue?
SAP Web Dispatcher Profile generated by bootstrap
SAPSYSTEM = 00
DIR_EXECUTABLE = .
DIR_INSTANCE = .
rdisp/mshost = <EP_CI_IP_address>
ms/http_port = 8104
wdisp/auto_refresh = 25
wdisp/max_servers = 100
wdisp/shm_attach_mode = 6
icm/max_conn = 500
icm/max_sockets = 1024
icm/req_queue_len = 500
icm/min_threads = 10
icm/max_threads = 50
mpi/total_size_MB = 80
wdisp/HTTP/max_pooled_con = 500
wdisp/HTTPS/max_pooled_con = 500
icm/server_port_0 = PROT=HTTP,PORT=8100
icm/HTTP/admin_0 = PREFIX=/sap/wdisp/admin,DOCROOT=./admin,AUTHFILE=icmauth.txt,PORT=8100
Brief output of checkconfig
Maximum number of sockets supported on this host 8192
Server info will be retrieved from host EPHostIPAddres 8104 protocol http
Checking J2EE server sappqxx03:50300...OK
Checking J2EE server sappqxx05:50500...OK
Web Dispatcher configuration for J2EE only system: No server group DIAG defined
Check ended with 0 errors, 0 warnings