Through policies, you set the rules as to how Umbrella protects and manages your systems—your identities. Add a policy to Umbrella to provide DNS-layer visibility and enforcement with the ability to selectively proxy risky domains.
- Step 1: Add a Policy
- Step 2: Select Identities
- Step 3: Determine What You Want This Policy to Do
- Step 4: Setting your Security and Content Details
- Step 5: Set Policy Detail
Note: Not all features of the policy wizard explained here are available to all Umbrella packages. To determine your current package, navigate to Admin > Licensing. For more information, see Determine Current Package. See also, Cisco Umbrella Packages.
- Navigate to Policies > Management > All Policies and click Add.
When the All Policies page opens for the first time, it only lists the Default policy. You can add a new policy or edit the Default policy. If you edit the Default policy, the Summary page opens, from which you can edit the Policy.
Note: The Default policy applies to all identities. You cannot remove identities from the Default policy.
- Select the identities you wish to apply this policy to and click Next.
This can be any combination of identities available to you. Identity categories, such as AD Computers or Roaming Computers, can be clicked through to more selectively choose identities.
If you have created tags, you can also select these. While listed under identities, a tag is not an identity, but rather tags are a grouping of roaming computer identities. For more information about tags, see Best Practices for Policy Creation.
- Select the policy components you'd like to enable.
Selecting an option here makes that component available for configuration in the Policy wizard's later steps. However, selecting an option here does not necessarily activate that feature as some features require additional configuration.
Listed options correspond to policy features:
- Enforce Security at the DNS Layer—These are settings related directly to the blocking of domains based on whether they are malicious and provides a base level of security protection. Recommended.
- Inspect Files—Selectively inspect files in the cloud, not on-premise, so there is no need for additional hardware. The inspection is done with Cisco AMP and an antivirus. Unavailable, if the intelligent proxy is disabled. For more information, see Enable File Inspection.
- Limit Content Access—These settings filter types of content. Recommended.
- Control Applications—These settings block access to applications. Recommended.
- Apply Destination Lists—If you have particular domains you'd like to allow or block, add them to a destination list. There are two by default, block or allow, and you can create more to organize groups of domains. The two defaults are the Global lists, meaning they apply to any policy.
Note: A Global Destination List, whether Block or Allow, applies to all policies and all identities. It is 'global' across all your organization's configurations. To define a specific list, create a new list and add domains only to that list, then apply that list to individual sets of identities.
- Expand Advanced Settings to configure the intelligent proxy and related features, SafeSearch, Allow-Only mode, and logging.
- Enable Intelligent Proxy—Uses Cisco Talos web reputation and other third-party feeds to determine if a URL is malicious. The proxy also uses anti-virus (AV) engines and Cisco Advanced Malware Protection (AMP) to inspects files before they are downloaded. When disabled, File inspection is also disabled. For more information about the intelligent proxy, see Manage the Intelligent Proxy.
- SSL Decryption—Allows the intelligent proxy to inspect traffic over HTTPS and block custom URLs in destination lists. For more information, see SSL Decryption Requirements and Implementation.
- Root Certificate—Download and install the Cisco Umbrella root certificate on all computers that are a part of this policy. For more information, see Install the Cisco Certificate.
- Selective Decryption—Create a list of content categories to exclude from inspection by the intelligent proxy. For more information, see Selective Decryption.
- Enable IP-Layer Enforcement—For roaming client identities only, tunnels suspect IP connections to gain visibility into threats that bypass DNS lookups. For more information, see Add IP Layer Enforcement.
- Enforce SafeSearch—A feature of the major search engines that restricts and filters explicit images and results. Umbrella provides you with the ability to enforce traffic to Google, YouTube, and Bing. For more information, see What is SafeSearch.
- Allow-Only mode—Select in cases where you wish to allow access to a small subset of domains and block all other domains. Because the result of enabling this feature is to effectively block access to the internet except for that part you've defined as "allowable", we recommend caution if you are enabling this feature.
Note: This mode only applies to DNS requests, and not HTTP/HTTPS requests.
Logging settings are:
- Log All Requests—For full logging, whether for content, security or otherwise
- Log Only Security Events—For security logging only, which gives your users more privacy—a good setting for people with the roaming client installed on personal devices
- Don't Log Any Requests—Disables all logging. If you select this option, most reporting for identities with this policy will not be helpful as nothing is logged to report on.
For more information about managing your logs, see Manage Your Logs.
- Click Next.
When you click Next you'll see a progress meter with the number of steps remaining until you've fully configured the policy. Available steps correspond to your policy component selections.
These settings determine which categories of security threat Umbrella blocks. For more information about security category, see Manage Security Categories.
When you first access Security Settings, default settings are applied. The blue shield icon indicates a selected and enabled security category. You can leave this setting as is, select a different setting or edit settings and create a new one if needed.
- To edit settings, click Edit, select or clear security categories, and then click Save.
- From the Security Settings drop-down list, choose a security setting or click Add New Setting.
If you choose Add New Setting, a window appears allowing you to add a new setting.
- Give your new setting a meaningful name, select how it is created and then click Create.
- If you select Create from Scratch, select security settings and click Save.
Your security setting is added to the drop-down list.
If you have any custom integrations, they are listed at the bottom of the page under Integrations. Only custom integrations enabled and configured under your account appear.
- To enable or disable integrations settings, click Edit.
- Select integrations as necessary and click Save.
- Once you've configured security settings, click Next.
Content categories organize destinations—in this case, websites—into categories based on the type of information served by the website; for example, gambling, social networking, or alcohol. Select content categories to block identity access to destinations that serve up content of that type. When an identity attempts to access a destination that is blocked because of a DNS content setting, an Umbrella block page appears. For a list of all categories and a definition for each, see Content Categories.
- Select a preset categorization level:
- High—Blocks adult-related status, illegal activity, social networking, video sharing sites, and general time-wasters. Note that not all content categories are listed under High. There is a sub-listing of content categories that are only available to Custom.
- Moderate—Blocks all adult-related web sites and illegal activity.
- Low—Blocks pornography and anonymous web surfing.
- Custom—For the creation of a custom grouping. Lists all content categories.
The High, Moderate, and Low levels propagate upward. Low categories are included with Moderate and both Moderate and Low category presets are included in High. Custom includes all categories included with the High setting.
- If you choose Custom, select Categories.
Optionally, from the Custom Setting drop-down list, choose Create New Setting.
- Click Next.
As with security settings, you can add a new content setting and modify an existing one directly from within the wizard.
Select applications to block access to them when they represent an unacceptable risk or when their functionality is inappropriate.
- Select application categories to be blocked or expand a category to choose individual applications.
Note: SSL Decryption must be enabled.
- Click Next.
- Click Proceed to confirm your Application selections.
Destination lists allow for the customization of filtering by creating a list of domains that are explicitly blocked or allowed.
Creating a destination list is simple: first, pick the type of list you want, then add the domains you would like to have allowed or blocked and give the list a name.
For more information, see Working with Destination Lists.
Note: Destination lists are not saved until you click Save, although it appears in the list view after entering it.
This feature applies to IP Layer Enforcement via the roaming client only, and will not override DNS-based blocks sourced from malicious IP information. It requires that the roaming client is installed on the identities for this feature in the policy.
For Destination Allow Lists only (for now), you can add an IP address or a block of IP addresses. The format for the block of IP addresses is standard CIDR notation.
The size of the CIDR cannot exceed a /8, otherwise, you'll receive this error:
If you enter an invalid subnet mask, such as 22.214.171.124/1000000, the IP will be added but the network notation will be ignored.
Otherwise, add any destination that you'd like to ensure isn't blocked now or in the future.
- Enable File Inspection.
- Click Next.
Block Page Settings let you configure a block page that appears when a request is made to access a blocked page. You can also create a bypass so that access can be granted to the block page. You can customize the block page's appearance and redirect to a custom domain.
- Block Page Settings—This setting let you customize the block page appearance, redirect to a custom domain, and more.
- Bypass Users—Users who can log in to bypass block pages on this policy. A Bypass User must be checked on a policy in order for it to be active.
- Bypass Codes—Codes who can log in to bypass block pages on this policy. A Bypass Code must be checked (as above) on a policy in order for it to be active.
Note: Not all categories can be bypassed. If a user is blocked for a Security or Malware category, the site is considered malicious and should not be accessed under any circumstances. If you think a domain shouldn't be blocked, email us at [email protected].
If you'd like to know more about a block or have us review it in more detail, open a case by emailing [email protected] with information about the domain and our support and security teams will review it.
If you do not wish to change anything, just use the Umbrella Default Appearance, but this setting also allows for the customization of the block page.
To edit an existing block page:
- Hover over the name and click the Edit pen icon.
- Select Use a Custom Appearance, then choose Create new Appearance from the drop-down list.
When you create or edit a page, give your settings an easy to remember name, such as "Corporate Block Policy."
Choose a generic message across all block pages, or customize the message per type of block page by selecting whether Blocked requests should be treated the same or differently. If you set a custom message, you may insert the [domain] variable into a custom message, which is substituted with the actual domain name that the end user attempted to browse to. You may also insert the [client_ip] variable, which shows the external IP address of the client that is hitting the block page.
If you set a custom message, you may insert the [domain] variable into a custom message, which is substituted with the actual domain name that the end user attempted to browse to
The block can also redirect to a custom URL.
If not redirecting to a custom URL, a contact form can be added to allow blocked users to contact the administrator at the email provided.
Finally, a custom logo can be uploaded to be displayed on the block page in place of the Umbrella logo.
A bypass user can log in (when added to the policy) to bypass the selected type of block pages. The option to bypass the block page is encountered when the block page is presented and the user can then authenticate in order to bypass it. For people without these credentials, the block remains in place.
Note: Not all categories can be bypassed. If a user is blocked for a Security or Malware category, the site is considered malicious and should not be accessed under any circumstances.
- To add a user, navigate to Admin > Accounts.
Note: The user must already exist in Umbrella to be added as a Bypass User.
- Once you have users, under Bypass Users, select a user or click Create New.
If you wish, the bypass user can be applied to specific category filters or destination lists. Note that it is not possible for a bypass user to bypass a security block.
Again, it's essential that this bypass user is applied to the policy that matches the identity that will hit the block page.
Bypass codes can be created to allow blocked users to bypass the block page. The bypass code is available for a specified period of time.
When enabled (with the check mark) on the policy, the selected categories and/or domains can be bypassed. Ensure to set an expiration for the code or the default is that it will expire within an hour.
Again, it's essential that this code is applied to the policy that matches the identity that will hit the block page.
Once you've set your block page and bypass settings, click Next.
Lastly, you'll reach the Policy Summary. It covers all of the modifications to the policy you just made. If you want to change anything, click the relevant Edit button and you'll jump right back to that step, or disable the feature directly from the Summary screen. When you've made the change, you can jump back to the summary directly without having to click through all the other steps (neat, right?).
- Give your policy a meaningful name.
- Click Edit to go back and modify settings.
- Click Save.
Your policy is complete. As you add identities and configurations for Umbrella, you may need to tweak your policy. When you open an existing policy, the Summary screen opens, and you can jump between steps in order to make the change you need to make immediately without having to do redo the entire wizard.
Updated 3 months ago