# Configuration *ctasd* loads the non-reloadable configuration from `/etc/ctasd/ctasd.conf`. The default configuration file in `/opt/ctasd/share/examples` can normally be used as a base: ```console $ cp /opt/ctasd/share/examples/ctasd.conf /etc/ctasd/ ``` *ctasd-o* loads the non-reloadable configuration from `/etc/ctasd/ctasd-o.conf`. The default configuration file in `/opt/ctasd/share/examples` can normally be used as a base: ```console $ cp /opt/ctasd/share/examples/ctasd-o.conf /etc/ctasd/ ``` Below are some of the most important settings that can be configured. ## General directives ### [General]OutboundEnabled Should be `0` for *ctasd* and `1` for *ctasd-o*. ## Connectivity directives ### [Connectivity]Server_address Should be `resolver%d.halon.ctmail.com` if you want to use the closest data center or `resolver%d-eu-halon.ctmail.com` if you only want to use EU data centers. ### [Connectivity]License_key_code Should be the license key that was provided by us. ## HttpServer directives ### [HttpServer]BindingAddress The IP address to listen on. In the default configuration this is set to `127.0.0.1`. ### [HttpServer]Port The port to listen on. In the default configuration this is set to `8088` for *ctasd* and `8089` for *ctasd-o*. ## Security directives ### [Security]User The privdrop user ### [Security]Group The privdrop group