When configuring your firewall to allow Box as a trusted source, please use the steps outlined below:

1. Use our site's domain names instead of a particular site IP address as IP addresses can change frequently and without notice. Please configure host names to recognize any sub-domain of:

  • *.box.com
  • *.boxcloud.com
  • *.boxlocalhost.com
  • *.box.net
  • *.boxcdn.net

To make use of the integrated Excel Online Previewer, you will need to add the following specific hostnames: 

  • excel.officeapps.live.com
  • s1-excel-15.cdn.office.net
  • fs.microsoft.com

 

If you are unable to whitelist the sub-domains shown in the list above, please allow these specific hostnames:

www.box.com

www.box.net

app.box.com

account.box.com

ent.box.com

developer.box.com

docs.box.com

a.box.com

m.box.com

upload.app.box.com

upload.box.com

notes.services.box.com

api.box.com

community.box.com

support.box.com

status.box.com

blog.box.com

view-api.box.com

view.box.com

upload.view-api.box.com

{yourcustomsubdomain}.app.box.com

{yourcustomsubdomain}.account.box.com

{yourcustomsubdomain}.ent.box.com

public.boxcloud.com

enterprise.boxcloud.com

dl.boxcloud.com

dl2.boxcloud.com - dl20.boxcloud.com

edit.boxlocalhost.com

upload.box.net

2.realtime.services.box.net

e3.boxcdn.net

cdn01.boxcdn.net - cdn20.boxcdn.net

 

2. Enable HTTPS (port 443) for the domains above.

Due to the numerous firewalls available we cannot provide specific instructions for each firewall beyond what is listed above. If you are using a firewall or proxy such as Websense, Blue Coat, etc., please create a Box User Services case  and request any additional hostnames that are used with Enterprise accounts.

 

Configuring a Proxy for Box Sync

1. What client settings are supported?

  • Automatic Proxy Detection 
  • Proxy Auto-Configuration (PAC file)
  • Manual setting: Select Web Proxy (HTTP) and Secure Web Proxy (HTTPS) and enter the IP address or host name for your proxy server

2. What server settings are supported?

  • Proxy server without authentication
  • Proxy server with NTLMv1 or NTLMv2 authentication

3. What are the proxy exceptions?

  • Windows: The Windows API does not support local file path schema (file://C:\proxy.pac).  Box Sync works if the PAC file path starts with HTTP or HTTPS, but it doesn't work if the PAC file path is the local path. 

 

Configuring a Proxy for Box Edit

See our Box Edit DNS and proxy configuration guide for more information.

 

Testing Connectivity to Box Domains

 You can test if your browser is able to connect to various Box domains by going to our Connectivity Testing page. Each test image is hosted on a different Box domain.