Accessing apps on CStack GEN

Assumptions

• You have an app hosted on CStack GEN.

  Not sure if your app is hosted on CStack GEN? You can confirm by checking your app’s URL. If the URL is in one of the following formats: xxxx.gen-e01.app.gov.sg or xxxx.stg.gen-e01.app.gov.sg, then it is hosted on CStack GEN.

• You’re trying to access your app from your laptop but your laptop can come from a few different networks.

Where are you accessing from?

Follow the steps outlined below based on your setup.

Accessing from GSIB laptop and connected to the internet + SG-VPN

There is no action required, you can access your app directly on CStack GEN.

Accessing from GSIB via Agency Network(LAN/WIFI)

• Enable network connectivity on ports 443 to CStack GEN IP addresses.
• Raise an ITSM request for egress traffic whitelisting to the CStack Inbound IP range.
• Join us at #cstack-helloworld on Slack to get the GEN-routable IP range for whitelisting. Existing Slack users can obtain the IPs from here.
• If you need more help, please reach out to enquiries_cstack@tech.gov.sg.

Accessing from COMET or NGEP (NextGen Endpoint)

• Raise a request for egress traffic whitelisting to CStack Inbound IP range with the COMET team.
• Join us at #cstack-helloworld on Slack to get the gen-routable IP range for whitelisting. Existing Slack users can obtain the IPs from here.
• If you need more help, please reach out to enquiries_cstack@tech.gov.sg.