# I have a broken CDN, how do I fix it? **URL:** \ **Category:** Self-hosting\ **Created:** [21 Abril , 2016 05:44 UTC](https://meta.discourse.org/t/i-have-a-broken-cdn-how-do-i-fix-it/42925 "2016-04-21T05:44:40Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![Felipe\_Morales](https://avatars.discourse-cdn.com/v4/letter/f/94ad74/32.png) [@Felipe\_Morales](https://meta.discourse.org/u/Felipe_Morales)\ **Post date:** [21 Abril , 2016 13:44 UTC](https://meta.discourse.org/t/i-have-a-broken-cdn-how-do-i-fix-it/42925/3 "2016-04-21T13:44:49Z")
without CDN app.yml ``` ## which TCP/IP ports should this container expose? ## If you want Discourse to share a port with another webserver like Apache or nginx, ## see https://meta.discourse.org/t/17247 for details expose: - "3000:3000" # http - "443:443" # https ## TODO: List of comma delimited emails that will be made admin and developer ## on initial signup example 'user1@example.com,user2@example.com' DISCOURSE_DEVELOPER_EMAILS: 'zerodump2@gmail.com' ## TODO: The domain name this Discourse instance will respond to DISCOURSE_HOSTNAME: 'huelen.diinf.usach.cl' ## TODO: The SMTP mail server used to validate new accounts and send notifications DISCOURSE_SMTP_ADDRESS: smtp.gmail.com # required DISCOURSE_SMTP_PORT: 465 # (optional, default 587) DISCOURSE_SMTP_USER_NAME: xxxxxxx # required DISCOURSE_SMTP_PASSWORD: xxxxxx # required, WARNING the char '#' in pw can cause problems! DISCOURSE_SMTP_ENABLE_START_TLS: true # (optional, default true) ## The CDN address for this Discourse instance (configured to pull) ## see https://meta.discourse.org/t/14857 for details ## DISCOURSE_CDN_URL: //discourse-cdn.example.huelen.diinf.usach.cl ``` ![](https://global.discourse-cdn.com/meta/original/3X/2/f/2f6d039c4f5d6984c872c3827144e9267ea5dc8e.png) --- _[View the full topic](https://meta.discourse.org/t/i-have-a-broken-cdn-how-do-i-fix-it/42925)._