I can easily set up access logs such that the Host: header is included; this allows the logs to kept in a single file and then post-filtered to separate them out per virtual user. e.g. LogFormat "%{Host}i %h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined However, is there a way to do the same for ErrorLog? That is, without having to set up a <VirtualHost> container for each site (since I'm using mod_rewrite for mass virtual hosting). In particular, I want each site's CGI stderr output to be filterable. Thanks, Brian. --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx