Restored PmWiki today. I was getting a 403 page, and found out that URLs generated by pmwiki engine lacked the pmwiki.php at the end, as in
http://www.soours.com/wiki/pmwiki/pmwiki.php?n=Soours.Construction
which was spelled
http://www.soours.com/wiki/pmwiki/?n=Soours.Construction
notice? nothing btw the last ‘/’ and the ‘?n=’
It took me 3 minutes in PmWiki’s wiki to locate the main configuration fil’s name (called, believe it, /pmwiki/config.php), and to modify the line starting with $ScriptUrl as such (it was effectively missing the final ‘pmwiki.php’, so I probably saved it without editing when I tweaked PmWiki).
$ScriptUrl = 'http://www.soours.com/wiki/pmwiki/pmwiki.php';