IIRC it was by design yes, but I don't know the reasons behind it, perhaps the dev mailing list or some developers reading this can provide more information. You could also try #httpd-dev at Freenode. I think you could reach your goals without using captured groups though, I see in the initial virtualhost you shared, that there is no servername, so probably you are only using that one for a few or several hostnames, so you could just define separate virtualhosts with their names and their own socket path, you can use "in-config" variables with Define directive to avoid typing the same thing several times or even use mod_macro, here is a brief example with in-config variables: Define subdomain1 printers <VirtualHost *:80> ServerAdmin webmaster@localhost ServerName ${subdomain1}.example.com DocumentRoot /var/www/html LogLevel trace2 UseCanonicalName Off ProxyPass / unix:/home/user/${subdomain1}/server.sock|http://127.0.0.1/ ProxyPassReverse / unix:/home/user/${subdomain1}/server.sock|http://127.0.0.1/ ... </VirtualHost> Define subdomain2 mail <VirtualHost *:80> ServerAdmin webmaster@localhost ServerName ${subdomain2}.example.com ....etc 2017-09-04 11:03 GMT+02:00 David Mugnai <dvd@xxxxxx>: > Excerpts from Daniel's message of settembre 1, 2017 9:57 : >> >> AFAIK you can't use variables of captured groups when using sockets, >> but I don't have an answer to why. To check If I'm correct you could >> try using a tcp port instead of socket. > > > You are right, switching the test environment to tcp works. > Unfortunatley this not works with our planned deploy; do you know if the > limitation is by desing? > > david > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx > For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx > -- Daniel Ferradal IT Specialist email dferradal at gmail.com linkedin es.linkedin.com/in/danielferradal --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx