Domains and ports to allow

You must set up your firewall or proxy to allow these domains and ports.

This lets you protect your devices and communicate between Sophos Central Admin and your managed devices.

Note All features route traffic using the same proxy.

Some of the domains you need to allow are owned by Sophos Central Admin. Others aren't, but are needed for essential operations such as checking that installations work or recognizing certificates.

Sophos Central Admin domains

You must allow these domains and ports through your firewalls and proxies for your protection to work correctly.

If you're a partner managing accounts for customers, you must do this for each customer's firewall or proxy.

  • central.sophos.com
  • cloud-assets.sophos.com
  • sophos.com
  • downloads.sophos.com
Note If your proxy or firewall supports wildcards, you can use the wildcard *.sophos.com to cover these addresses.

Then enter the following non-Sophos addresses.

  • az416426.vo.msecnd.net
  • dc.services.visualstudio.com
  • *.cloudfront.net

You must also review the other sections in this page and allow the appropriate domains and ports for all your licenses.

If you're a partner managing accounts for customers, you must do this for each customer's firewall or proxy, matching each customer's licenses.

Sophos domains

If your proxy or firewall supports wildcards, add the following wildcards to cover these Sophos domains.

  • *.sophos.com
  • *.sophosupd.com
  • *.sophosupd.net
  • *.sophosxl.net

If your proxy or firewall doesn't support wildcards, you must identify the exact Sophos domains you need, then enter them manually.

You need to identify the server addresses that Sophos Management Communication System and the device installers use to communicate with Sophos Central Admin securely.

On Windows devices, do as follows:

  1. Open SophosCloudInstaller.log. You can find it in C:\ProgramData\Sophos\CloudInstaller\Logs.
  2. Look for the following lines:
    • line starting Model::server value changed to:
    • line starting Opening connection to

    There should be 2 values that look like one of each of the following examples:

    • dzr-mcs-amzn-eu-west-1-9af7.upe.p.hmr.sophos.com
    • mcs2-cloudstation-us-east-2.prod.hydra.sophos.com
    • mcs.stn100yul.ctr.sophos.com
    • mcs2.stn100yul.ctr.sophos.com
    • dzr-api-amzn-eu-west-1-9af7.api-upe.p.hmr.sophos.com
    • api-cloudstation-us-east-2.prod.hydra.sophos.com
    • api.stn100yul.ctr.sophos.com
  3. You must add this address and the following addresses to your firewall or proxy allow list.
    • dci.sophosupd.com
    • d1.sophosupd.com
    • d2.sophosupd.com
    • d3.sophosupd.com
    • dci.sophosupd.net
    • d1.sophosupd.net
    • d2.sophosupd.net
    • d3.sophosupd.net
    • t1.sophosupd.com
    • sus.sophosupd.com
    • sus.sophosupd.net
    • sdds3.sophosupd.com
    • sdds3.sophosupd.net
    • sdu-feedback.sophos.com
    • sophosxl.net
    • 4.sophosxl.net
    • samples.sophosxl.net
    • cloud.sophos.com
    • id.sophos.com
    • central.sophos.com
    • downloads.sophos.com
    • amazonaws.com
  4. You must also add these addresses to your firewall or proxy allow list:
    • *.ctr.sophos.com
    • *.hydra.sophos.com
  5. If you want to be more specific about the domains you allow for Sophos Management Communication System you can use the following domains.
    • dzr-mcs-amzn-eu-west-1-9af7.upe.p.hmr.sophos.com
    • dzr-mcs-amzn-us-west-2-fa88.upe.p.hmr.sophos.com
    • mcs-cloudstation-eu-central-1.prod.hydra.sophos.com
    • mcs-cloudstation-eu-west-1.prod.hydra.sophos.com
    • mcs-cloudstation-us-east-2.prod.hydra.sophos.com
    • mcs-cloudstation-us-west-2.prod.hydra.sophos.com
    • mcs2-cloudstation-eu-west-1.prod.hydra.sophos.com
    • mcs2-cloudstation-eu-central-1.prod.hydra.sophos.com
    • mcs2-cloudstation-us-east-2.prod.hydra.sophos.com
    • mcs2-cloudstation-us-west-2.prod.hydra.sophos.com
    • mcs.stn100syd.ctr.sophos.com
    • mcs.stn100yul.ctr.sophos.com
    • mcs.stn100hnd.ctr.sophos.com
    • mcs2.stn100syd.ctr.sophos.com
    • mcs2.stn100yul.ctr.sophos.com
    • mcs2.stn100hnd.ctr.sophos.com
  6. You may need to allow access to the following Certificate Authority sites if they aren't allowed by your firewall.
    • ocsp.globalsign.com
    • ocsp2.globalsign.com
    • crl.globalsign.com
    • crl.globalsign.net
    • ocsp.digicert.com
    • crl3.digicert.com
    • crl4.digicert.com
Note Some firewalls or proxies show reverse lookups with *.amazonaws.com addresses. This is expected as we use Amazon AWS to host several servers. You must add these URLs to your firewall or proxy.

Ports

  1. You must add the following ports.
    • 80 (HTTP)
    • 443 (HTTPS)

Sophos AD Sync utility

Restriction If your firewall doesn't allow wildcards you can't use Sophos AD Sync utility.
  1. If you're using the Active Directory service, you must also add the following pre-signed s3 domains:
    • tf-presigned-url-eu-west-1-prod-*-bucket.s3.eu-west-1.amazonaws.com
    • tf-presigned-url-eu-central-1-prod-*-bucket.s3.eu-central-1.amazonaws.com
    • tf-presigned-url-us-east-2-prod-*-bucket.s3.us-east-2.amazonaws.com
    • tf-presigned-url-us-west-2-prod-*-bucket.s3.us-west-2.amazonaws.com
    • tf-presigned-url-ca-central-1-prod-*-bucket.s3.ca-central-1.amazonaws.com
    • tf-presigned-url-ap-southeast-2-prod-*-bucket.s3.ap-southeast-2.amazonaws.com
    • tf-presigned-url-ap-northeast-1-prod-*-bucket.s3.ap-northeast-1.amazonaws.com
  2. Add the following wildcards:
    • *.s3.eu-west-1.amazonaws.com
    • *.s3.eu-central-1.amazonaws.com
    • *.s3.us-east-2.amazonaws.com
    • *.s3.us-west-2.amazonaws.com
    • *.s3.ca-central-1.amazonaws.com
    • *.s3.ap-southeast-2.amazonaws.com
    • *.s3.ap-northeast-1.amazonaws.com

Intercept X Advanced with XDR

Restriction You can only allow the mcs-push-server addresses by using a wildcard. If your firewall doesn't allow wildcards Live Response and Live Discover won't work.

If you have an Intercept X Advanced with XDR license or Intercept X Advanced for Server with XDR license, do as follows:

  1. Add the domains and ports listed in Sophos domains and Ports before adding the domains listed below.
  2. Add the following domains:
    • live-terminal-eu-west-1.prod.hydra.sophos.com
    • live-terminal-eu-central-1.prod.hydra.sophos.com
    • live-terminal-us-west-2.prod.hydra.sophos.com
    • live-terminal-us-east-2.prod.hydra.sophos.com
    • live-terminal.stn100yul.ctr.sophos.com
    • live-terminal.stn100syd.ctr.sophos.com
    • live-terminal.stn100hnd.ctr.sophos.com
    • *.mcs-push-server-eu-west-1.prod.hydra.sophos.com
    • *.mcs-push-server-eu-central-1.prod.hydra.sophos.com
    • *.mcs-push-server-us-west-2.prod.hydra.sophos.com
    • *.mcs-push-server-us-east-2.prod.hydra.sophos.com
    • *.mcs-push-server.stn100yul.ctr.sophos.com
    • *.mcs-push-server.stn100syd.ctr.sophos.com
    • *.mcs-push-server.stn100hnd.ctr.sophos.com

Intercept X Advanced with XDR and MTR Standard

You need to add these domains if you have one of the following licenses:

  • Intercept X Advanced with XDR and MTR Standard
  • Intercept X Advanced with XDR and MTR Advanced
  • Intercept X Advanced for Server with XDR and MTR Standard
  • Intercept X Advanced for Server with XDR and MTR Advanced
  • Managed Threat Detection
  • Managed Threat Detection for Server
  1. Add the domains and ports listed in Sophos domains, Ports, and Intercept X Advanced with XDR before adding the domains listed in this section.
  2. If you have an MTR license and are using TLS inspection or have a firewall that uses application filtering, you must also add these domains:
    • prod.endpointintel.darkbytes.io
    • kinesis.us-west-2.amazonaws.com

To confirm you need to add those exclusions, or to test that the exclusions are effective, you need to check your DNS and your connectivity on a device.

On Windows, do as follows:

  1. To check your DNS, open PowerShell and enter the following commands:
    Resolve-DnsName -Name prod.endpointintel.darkbytes.io
    Resolve-DnsName -Name kinesis.us-west-2.amazonaws.com

    You should see a DNS response message from each domain.

  2. To check your connectivity, enter the following command:
    Invoke-WebRequest -uri https://prod.endpointintel.darkbytes.io

    You should see the following response: {message: "running..."}.

On Linux, do as follows:

  1. To check your DNS, enter the following commands:
    host prod.endpointintel.darkbytes.io
    Resolve-DnsName -Name kinesis.us-west-2.amazonaws.com

    You should see a DNS response message from each domain.

  2. To check your connectivity, enter the following command:
    curl -v https://prod.endpointintel.darkbytes.io/

    You should see the following response: {message: "running..."}.

Last updated: January 5, 2022.