Firewall and mail server configuration for Skills and ACG

Email

Please make certain you configure the following hosts as trusted senders on your email server and firewall so that mail from Pluralsight isn't rejected:

• @pluralsight.com
• @pluralsightmail.com
• @tmail.pluralsight.com
• @pluralsightflow.com (if your organization uses Flow)
• Sparkpost:
  • @appmail.pluralsight.com
  • IP addresses 192.174.86.231 and 192.174.86.230

If your organization is opted in to customer marketing communications—typically around adoption and engagement—please allowlist @pluralsightsavings.com as a trusted sender.

This is optional and only necessary for organizations that are working with Pluralsight and using customer marketing communications.

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Web

Allowlist *.virtru.com for secure communications with Pluralsight Support.

Allowlist the following hosts in your firewall for outbound TCP connections over ports 80 and 443 (for HTTP and HTTPS, respectively):

• *.pluralsight.com
• *.typekit.com

For Skills interactive courses, please also allow WSS traffic over port 443.

Skills uses Cloudflare, Cachefly, Edgecast, and AWS.

• To view all Cloudflare IP addresses, please see this Cloudflare list (external site, opens in new tab).
• To view Cachefly IPs, please see this Cachefly list (external site, opens in new tab).
• To view Edgecast IPs, please see this Edgecast list (external site, opens in new tab).
• To view our Amazon AWS IP addresses (US-West-2 and Cloudfront), please see this AWS list (external site, opens in new tab).

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Video content

If you experience issues with video content, check out our video checkup tool (opens in new tab), as well as this article on video troubleshooting steps.

To verify that a local firewall is not blocking access to our video servers, please try downloading this 40MB video file directly from our content delivery network (opens in new tab). If your firewall is rejecting our videos, you'll likely see 403 Forbidden. This may include a message explaining why your firewall blocked your request.

If you still have issues accessing our content, especially playing videos, please reach out to your IT Ops team to make sure the subdomains below are allowed through your network firewall and any security appliance.

Video course exercise files

To allow your users to download and use exercise files associated with video courses, please allowlist the following domain:

• ip-video-course-exercise-files-us-west-2.s3.us-west-2.amazonaws.com

Discussion boards

To view and use discussion boards on video courses and projects, please allowlist Disqus.com.

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Hands-on learning

Required for general labs and sandboxes:

• *.pluralsight.run
• *.pndsn.com

For AWS labs, please also allow Amazon's list of IP addresses (external site, opens in new tab).

For Microsoft Azure labs, please also allow Microsoft's list of URLs (external site, opens in new tab).

For in-course Qwiklabs, and Google Cloud self-paced labs, please also allow *.qwiklabs.com and allow access to Google's list of ports (external site, opens in new tab).

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ACG

Email

Please make certain you configure the following hosts as trusted senders on your email server and firewall so that mail from ACG isn't rejected:

• support@acloud.guru
• support@teams.acloud.guru
• no-reply@acloud.guru
• IP addresses 168.245.92.148, 192.28.158.170, and 192.28.185.172

Web

Please allow *.acloud.guru in your firewall.

Video content

If you are experiencing issues with ACG video content, check out our Video issues article.

Hands-on learning

• AWS and Google Cloud Platform labs: There is not a fixed list of IP addresses. Each lab is assigned an account Id with a unique IP address each time it’s started.
• Microsoft Azure labs: The main IP address is Realhandsonlabs.com. Please also allow Azure’s list of URLs (external site, opens in new tab).
• Cloud servers: If you’re using the ACG public IP address, only certain ports are open to external traffic on cloud servers. See Hands-on playground FAQ for the current port allowlist.
• Isolation mode: Add isolation-mode.acloud.guru and isolation-mode.pluralsight.com to your allowlist. See Isolation mode to learn more.

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Flow

Learn about using Pluralsight Flow with an internal server or behind a firewall.