As of May 2019, DreamHost no longer supports Mongrel. If you had previously enabled it on your VPS or Dedicated server, it will continue to function. However it's not possible to add new Mongrel servers.
As of May 2019, DreamHost no longer supports Mongrel. If you had previously enabled it on your VPS or Dedicated server, it will continue to function. However it's not possible to add new Mongrel servers.