Symptom
Personal Web Sharing operates in its default state after a software update.
Note: You should not encounter this issue if you did not use the 10.2.4 Update specifically. Example: If you updated from 10.2.3 to 10.2.6 by using the Mac OS X 10.2.6 "combo" update, then you should not have this issue.
Solution
The previous http.conf file that you customized is saved by the Installer and renamed to "httpd.conf.applesaved". By renaming the files, you may put the customized file back into service.
1. Turn off Personal Web Sharing.
2. Open Terminal (/Applications/Utilities/).
3. Type: sudo mv /etc/httpd/httpd.conf /etc/httpd/httpd.conf.rendezvous
4. Press Return.
5. Type the password for your administrator account when prompted, and press Return.
6. Type: sudo mv /etc/httpd/httpd.conf.applesaved /etc/httpd/httpd.conf
7. Turn on Personal Web Sharing.
Additional information
When using the previous file, Rendezvous will not have features that require the updated file. The steps above saved the updated file as "httpd.conf.rendezvous". This is so that you may customize the new file and put it back into service at a later date.
Mac OS X 10.2.5 and later updates have a different installation method for the new httpd.conf file. The Installer checks to see if you have modified the existing httpd.conf file. If you have not, then it automatically replaces it with the new version. If you have modified it, then your modified file is left in place, and the new file is written as /etc/httpd/httpd.conf.default. At your leisure, you should add your modifications to the new file and retire the old one.