C
C
Appendix C
Frequently Asked Questions
Q: Can the connection port for the web server (HTTPD) be changed to something other than
80?
A: Yes, you can change the connection port for the web server. This is accomplished by changing
a registry setting.
The following instructions show how to change the HTTPD port to 81 instead of 80. In this
example, the embedded computer is assigned an IP address of 192.168.3.127. Adapt the
procedure as necessary for your embedded computer’s IP settings.
Step 1.
Open Internet Explorer and point it the following IP address:
http://192.168.3.127/sysadmin/?Client=IE4
If necessary, log on as an administrator. The default administrator user ID is “admin”,
and the default administrator password is “admin”.
Step 2.
Select “Registry Editor” in the top frame.
Step 3.
Browse to “KEY_LOCAL_MACHINE\Comm\HTTPD”.
Step 4.
Add a DWORD value named “Port”. The default value must be zero.
For “New Value Name:”, enter “Port”
For “New Value Type:”, select REG_DWORD
Click the “New Value” button.
Step 5.
Change “Port” to 51 (81 in HEX).
In the “Modified Value:” field, enter “51”
Go to the display position for “Port” and then click “Modify”.
Step 6.
Browse to “HKEY_LOCAL_MACHINE\Services\HTTPD\Accept\TCP-80”.
