Forum OpenACS Q&A: Response to nsvhr /nssock/nsunix config
The config snippets you posted look ok - you just might want to add a mapping for each domain name with port 80 explicitely listed, like this to accomodate certain client programs (I think wget for example):
ns_param "ottawamax.ca:80" "unix://ottawamax.nsunix"
Also did you look in the master's log file? According to your server namings it's propably called server.vhr-master.log. Search it for occurences of the word nsunix and possible "connection failed" messages near it.