Usecase page (#846)

* Addition of a UseCases page in the troubleshooting/FaQ section
---------
Authored-by: jdv <[email protected]>

Author: rr404

crowdsec-docs/sidebarsUnversioned.ts

@@ -591,6 +591,11 @@ const sidebarsUnversionedConfig: SidebarConfig = {
 			id: "troubleshooting/intro",
 			label: "Introduction",
 		},
+		{
+			type: "doc",
+			id: "troubleshooting/usecases",
+			label: "Use Cases",
+		},
 		{
 			type: "doc",
 			id: "troubleshooting/security_engine",

crowdsec-docs/unversioned/troubleshooting/usecases.mdx

@@ -0,0 +1,256 @@
+---
+toc_max_heading_level: 2
+title: Use Cases and Quick Solutions
+id: usecases
+---
+
+# Use Cases and Quick Solutions
+
+This page provides quick recommendations for common CrowdSec implementation scenarios. Each use case includes practical implementation paths with links to relevant documentation.
+
+:::tip
+New to CrowdSec? Start with our [installation guide](/u/getting_started/installation/linux) and [health check guide](/u/getting_started/health_check).
+:::
+
+## Block Known-Bad IPs at the Edge
+
+Pull up-to-date IP lists from CrowdSec **Blocklist as a Service** endpoints into your edge protection.  
+
+**Is it for me?**  
+
+Ideal if you want direct integration into your firewalls.
+Good option if you are not using a Security Engine and want your CDN or WAF to benefit from CrowdSec's blocklists.
+
+**How it works:**
+- Create a blocklist integration in your console account.
+- Select blocklists you want to be served by this endpoints.
+- Use the endpoint's URL and credentials to retrieve the merged and up-to-date list.
+
+
+**References**
+- [Blocklist integration Getting started guide](/u/integrations/intro)
+- [Subscribing to blocklists](/u/console/blocklists/subscription/)
+- [List of integrations format](/u/integrations/intro#current-integrations)
+- 🏅 [API management & creating your own blocklists](/u/console/service_api/quickstart/blocklists)
+- *Variation:* Integration into CDN/WAF via a **remediation component**:
+  - [Remediation Component BLaaS integration](/u/integrations/remediationcomponent)
+  - [AWF WAF remediation component](/u/bouncers/aws_waf)
+  - [Cloudflare Workers remediation component](/u/bouncers/cloudflare-workers)
+  - [Fastly remediation component](/u/bouncers/fastly)
+
+---
+
+## Reduce Noise to save Resources address alert fatigue 
+
+Eliminate automated noise from unwanted probes, spam and malicious traffic to reduce server load and log volumes by up to 80%.
+
+**Is it for me?**  
+
+Ideal if you're experiencing high server load from automated traffic or want to reduce infrastructure costs.
+Good option if you need to optimize server performance and reduce log storage requirements.
+
+**How it works:**
+- Use CrowdSec blocklists to preemptively block crowd validated noise.
+- Go further by deploying CrowdSec Security Engine to detect malicious patterns in your traffic.
+- Use an AppSec enabled Remediation Component to use CrowdSec WAF.
+- Track quantified savings through metrics and performance monitoring.
+
+**References**
+- [Blocklist Catalog doc](/u/console/blocklists/catalog)
+- [Blocklist Catalog ↗️](https://app.crowdsec.net/blocklists/search)
+- [Security Engine installation](/u/getting_started/intro)
+- [CrowdSec WAF](/appsec/intro)
+- [Remediation Metrics](/u/console/remediation_metrics)
+
+---
+
+## Multi-Tenant Protection
+
+Apply different security policies per customer, application, tier, [...] retrieving contextualized IP Lists.
+
+**Is it for me?**  
+
+Ideal if you're managing multiple customers, applications, or environments with different security requirements.
+Good option if you need granular policy control and want to avoid cross-tenant security policy interference.
+
+**How it works:**
+- Configure separate blocklist integrations for each context.
+- Assign context-specific blocklist AND allowlists.
+- Go further by creating custom lists based on detections made on your infrastructure.
+
+**References**
+- [Blocklist integration Getting started guide](/u/integrations/intro)
+- [Blocklist Catalog doc](/u/console/blocklists/catalog)
+- [Blocklist Catalog ↗️](https://app.crowdsec.net/blocklists/search)
+- [Custom blocklists from the decisions of your Security engine ↗️](https://github.com/crowdsecurity/custom-bouncer-to-blocklist)
+
+---
+
+## Looking for complementary IOC streams
+
+Add qualified IOCs from CrowdSec's real-time IP reputation. 
+
+**Is it for me?**  
+
+Ideal if you want to complement your IOC insights with exclusive CrowdSec IP reputation data.
+Quickly choose among qualified malicious actors regrouped by industry, behaviors...
+
+**How it works:**
+- Stream CrowdSec IP Lists into your security tools.
+- Integrate directly in your security tools thanks to our integrations or easy to use CTI API.
+- 🏅 Get custom IOC streams made for your needs.
+- Next step: Enrich IPs via CrowdSec CTI API.
+
+
+**References**
+- [IP reputation lists / Blocklists Catalog doc ↗️](https://app.crowdsec.net/blocklists/search)
+- [Retrieving merged lists via HTTPS endpoints](/u/integrations/intro)
+- [Retrieving Blocklists via API](/u/console/service_api/quickstart/blocklists#download-blocklist-content)
+- [MISP Feed from Security Engine's alerts](https://doc.crowdsec.net/u/bouncers/misp-feed-generator)
+- [Upcoming CrowdSec MISP Feeds ↗️](https://roadmap.crowdsec.net/c/48-misp-feed)
+- [Contact Us for custom requests ↗️](https://www.crowdsec.net/business-requests?interest=CTI%20subscription))
+
+---
+
+## Bot and Scraper Management
+
+Control aggressive crawlers and scraping tools while preserving legitimate user access using graduated response strategies.  
+
+**Is it for me?**  
+
+Ideal if you're dealing with aggressive bots or scrapers that impact your site performance.
+Good option if you want to prevent illegitimate AI crawlers from visiting your site.
+
+**How it works:**
+- Retrieve AI Crawlers and/or Botnets IPs from CrowdSec Blocklist integrations
+- Block at the edge using your firewall or CDN.  
+
+**References**
+- [⬆️ **Blocking at the edge section**](#blocking-at-the-edge)
+- [Custom scenario creation](/docs/next/scenarios/create)
+- [AI Crawlers Blocklist ↗️](https://app.crowdsec.net/blocklists/67b3524151bbde7a12b60be0)
+- [Currated Botnet Actors ↗️](https://app.crowdsec.net/blocklists/65a56c160469607d9badb813)
+- [Public Internet Scanners ↗️](https://app.crowdsec.net/blocklists/65f972eb807e06de7a0e3e65)
+
+---
+
+## Block Common web attacks fast
+
+Quickly protect web applications from the latest CVEs and generic vulnerability exploits using CrowdSec WAF.
+
+**Is it for me?**  
+
+Ideal if you want a modern OpenSource WAF solution.  
+Benefit from CrowdSec's Virtual patching catalog while being able to use your existing ModSecurity rules as is.
+
+**How it works:**
+- Deploy CrowdSec Security Engine with AppSec module on your reverse proxy or web server.
+- Get CrowdSec Virtual patching collection.
+- Easily scale and identify behaviors accross multiple servers over time.
+- Go further by using your existing appsec rules.
+- Even test CRS rules out of band on your production traffic to easily adapt them to you needs.
+
+
+**References**
+- [Security Engine installation](/u/getting_started/intro)
+- [CrowdSec WAF presentation](/appsec/intro)
+- [Virtual Patching collection ↗️](https://app.crowdsec.net/hub/author/crowdsecurity/collections/appsec-virtual-patching)
+- [CrowdSec WAF article ↗️](https://www.crowdsec.net/blog/crowdsec-waf-the-collaborative-future-of-web-application-security)
+
+---
+
+## Legacy Application Protection
+
+Add modern security controls to legacy applications that cannot be modified directly using transparent proxy protection.  
+
+**Is it for me?**  
+
+Ideal if you're running legacy applications that lack built-in security features.
+Good option if you need immediate protection without the risk of modifying critical legacy code.
+
+**How it works:**
+- Deploy CrowdSec WAF at the reverse proxy level in front of your legacy application.
+- Configure virtual patching rules to block known exploits targeting your application stack.
+- Additionally create custom AppSec rules adapted to your legacy application's specific patterns.
+- Test protection rules out of band (simulation mode) before enabling blocking to ensure application functionality.
+
+**References**
+- [⬆️ **Block Common web attacks fast**](#block-common-web-attacks-fast)
+- [Block right before your app code with PHP prepend](/u/bouncers/php)
+- [Add blocking capabilities in your php app](/u/bouncers/php-lib)
+
+---
+
+## Custom Behavior Protection
+
+Create targeted protections for specific abuse patterns like **spam**, **credential stuffing**, or **scalping attacks**, [...] using custom detection rules or scenarios.  
+
+**Is it for me?**  
+
+Ideal if you're facing unique attack patterns not covered by standard security solutions.
+Good option if you need highly specific protection tailored to your application's business logic and user patterns.
+
+**How it works:**
+- Analyze your specific abuse patterns to understand attacker behavior.
+- Create custom scenarios using CrowdSec's scenario framework for behavioral detection.
+- Eventually develop AppSec rules for pattern-matching specific malicious requests.
+- Test custom rules thoroughly using explain mode and simulation before production deployment.
+
+**References**
+- [⬆️ **Block Common web attacks fast**](#block-common-web-attacks-fast)
+- [Custom scenario creation](/log_processor/scenarios/create)
+- [Get help from the community ↗️](https://discord.gg/wGN7ShmEE8)
+- [Example of custom detection: Impossible traveler ↗️](https://www.crowdsec.net/blog/detect-suspicious-ip-behavior-impossible-travel)
+- [Success story: ScaleCommerce vs scalpers ↗️](https://www.crowdsec.net/blog/scalecommerce-plummets-ops-costs-and-skyrockets-efficiency)
+
+---
+
+## Alert Enhancement and Triage
+
+Accelerate incident response with contextual threat intelligence and automated routing to reduce alert volume by up to 80%.  
+
+**Is it for me?**  
+
+Ideal if your SOC team is overwhelmed with security alerts and needs better context for prioritization.
+Add exclusive context to your alerts and automate incident response with up to 30+ IP reputation enrichment dimensions.
+
+**How it works:**
+- Consult CrowdSec CTI: per IP queries, advanced search on behavior, classifications or performed CVEs- Configure notification plugins to automatically enrich alerts with global threat intelligence context.
+- Obtain your CTI API key from your CrowdSec Console account or a contact with CrowdSec team for higher quotas.
+- Integrate it in your tools with out existing integrations or via simple calls to the API.
+- 🏅 Advanced usages: API search, Offline replication, ...
+
+**References**
+- [Explore CrowdSec CTI within the console](/u/cti_api/getting_started)
+- [Create a test API key](/u/cti_api/api_getting_started)
+- [IP reputation enrichment glossary](/u/cti_api/taxonomy/cti_object)
+- [Evaluate your IPs using our **IPDEX** tool](/u/cti_api/api_integration/integration_ipdex/)
+- [Contact Us for 🏅 advanced usage ↗️](https://www.crowdsec.net/business-requests?interest=CTI%20subscription)
+
+---
+
+## Threat Hunting and Intelligence
+
+Enable proactive threat hunting with access to global intelligence from 190+ countries, often 7-60 days ahead of other vendors.  
+
+**Is it for me?**  
+
+Ideal if you have a threat hunting team that needs fresh, contextual intelligence for proactive security investigations.
+Good option if you want to correlate local events with global attack patterns and emerging threats.
+
+**How it works:**
+- Explore our CTI and CVE explorer
+- Leverage advanced search capabilities to identify relevant threats and vulnerabilities.
+- Go further using our CTI API to integrate threat intelligence into your existing workflows.
+
+**References**
+- [⬆️ CTI related refs from **Alert Enhancement and Triage**](#alert-enhancement-and-triage)
+- [CVE explorer](/u/cti_api/cve_explorer/)
+- [IPDEX presentation article ↗️](https://www.crowdsec.net/blog/introducing-crowdsec-ipdex)
+- [Follow our weekly vuln report on LinkedIn  ↗️](https://www.linkedin.com/company/crowdsec/posts/?feedView=all)
+
+---
+
+## Useful Links
+- [CrowdSec Public Roadmap ↗️](https://roadmap.crowdsec.net/tabs/3-planned)
+- [CrowdSecurity GitHub Repositories ↗️](https://github.com/crowdsecurity/)