Before you start, once again check main sources of errors in CGI scripts.
To start indexing, you should run script "index.pl". You may do it using UnixShell, if your provider allows it, or run it as usual CGI script (just write in your browser http://www.server.com/cgi-bin/index.pl). During the indexing script will create several files with information about your site (0_hash, 0_hashwords, 0_sitewords, 0_finfo, 0_word_ind) and store them in "db" directory.
Another way to index your site is via HTTP protocol. Run "spider.pl" and it will crawl through your files and parse out all the links (spider.pl requires LWP module). It is useful for indexing dinamic sites (such as webboards). However, this script is extremely simple and can't be used for web indexing. Another restriction: you can't stop indexing process and then resume it from this point. You need to index whole site at once.
Indexing process requires a lot of system resources. Your webhosting provider can be very unhappy, if you will run it too often. Probably, it is better to index local copy of your site. Then just copy created database files to the server (please use "BIN" mode). Amount of RAM, required for indexing, depends of the site size. You will not have problems with 10-20 Mb, but if you plan to index 500 Mb of text, I would recommend to buy at least 512 Mb RAM.
Please note, that most webservers will not allow to script to work too long time. After 30-60 seconds webserver will kill your script if it not finish indexing at that time. Therefore, you will not be able to index more than several megabytes running "index.pl" as CGI script. In order to index large sites you have to run script via UnixShell or to index local copy of your site.
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