1. Enhancing security by setting preferred cipher suites on Cloudflare

    TypeScript

    Enhancing security by setting preferred cipher suites on Cloudflare involves configuring security settings for your Cloudflare setup to specify which cipher suites should be preferred when establishing SSL/TLS connections. Cloudflare often manages these settings automatically, but depending on your subscription level, you can have different levels of control over these settings.

    In a Pulumi program, you can configure Cloudflare settings using the Cloudflare provider, specifically using the cloudflare.ZoneSettingsOverride resource which allows you to set different security-related settings for your zone. However, the ability to set specific cipher suites may not directly be exposed as a configurable property of this resource, depending on Cloudflare's API and the current Pulumi provider's implementation.

    Below is a generic Pulumi TypeScript program that shows how to use the cloudflare.ZoneSettingsOverride to configure zone settings such as SSL settings, security level, and others. Please note that setting specific cipher suites is not typically an option provided at the resource level due to the managed nature of Cloudflare's services. If you have a specific set of cipher suites that must be used, this is usually configured within Cloudflare's dashboard or via the API directly for Enterprise customers.

    The following example shows how you might set security settings without specific cipher suite preferences, as this level of granularity may not be available via the Pulumi Cloudflare provider.

    import * as pulumi from "@pulumi/pulumi"; import * as cloudflare from "@pulumi/cloudflare"; // The zone ID for your domain on Cloudflare. This should be a specific string value for your zone. const zoneId = "your-zone-id"; // Configuration for the zone. const securitySettings = new cloudflare.ZoneSettingsOverride("securitySettings", { zoneId: zoneId, settings: { // SSL settings, you might have options like "flexible", "full", "strict", etc. ssl: "full", // Other security-related settings can be configured here. securityLevel: "high", // Can be set to "essentially_off", "low", "medium", "high", or "under_attack". // More settings can be applied here according to your security requirements. // Specific cipher suites are typically not exposed here, but instead managed by Cloudflare. // For example, minTlsVersion can be adjusted to enforce higher versions of TLS, // indirectly influencing cipher suites that would be used. minTlsVersion: "1.2", }, }); // Export the zone's ID and security setting status. export const cloudflareZoneId = zoneId; export const securitySettingSslStatus = securitySettings.settings.apply(s => s.ssl);

    In the above code:

    • A cloudflare.ZoneSettingsOverride resource is declared to customize the security settings for a specific zone on Cloudflare.
    • zoneId would be the ID of your domain's zone on Cloudflare. Replace "your-zone-id" with your actual Cloudflare zone ID.
    • The securityLevel setting is set to "high", which is one of several options that can be chosen to represent your desired security posture.
    • ssl is set to a desired level of SSL/TLS encryption. This does not specify cipher suites, but the level of SSL to apply.
    • I've included an example minTlsVersion setting, which can be used to specify the minimum version of TLS to accept, indirectly influencing the cipher suites.

    Please note that to precisely control cipher suites or make such fine-grained tweaks, such features are often reserved for an Enterprise level of service on Cloudflare. For such cases or to get the latest capabilities of setting cipher suites via Pulumi, you would need to interface with Cloudflare's support or API directly.

    For more details on the available settings and configuring the Cloudflare provider in Pulumi, you can refer to the Cloudflare Pulumi documentation.


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