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Caching Strategy - CDN-APACHE - Example Headers

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Caching Strategy - CDN/APACHE - Internal working & Example Headers Imagine a company is hosting a website on a server in any cloud provider like AWS, AZUR, GCP . It may take around 100ms to load for users in US, but it takes 3–5 seconds to load for users in Finland. Fortunately, there are strategies to minimize this request latency for far-away users. These are called Caching and Content Delivery Networks (CDNs), which are two important concepts in modern web development and systems design. CDN are of different-different type   based on cloud service provider below are few most used ones – Cloud Front , by AWS Azure Front Door Content delivery solution from Akamai Different Caching Strategies Caching data can greatly improve the performance of applications. There are typically 4 common places where we can store cached data. Browser Caching Browser caching involves storing website resources on a user’s local computer. When a user revisits a site, the brow...
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How to prevent DDoS in Apache ?

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Prevent DDoS in Apache & IP Block Automation DDoS (Distributed Denial of Service) attacks are a type of cyberattack that can cause serious damage to your web server. These attacks involve flooding your server with a huge volume of traffic, overwhelming its resources and causing it to crash. In this blog post, we'll discuss how to prevent DDoS attacks in Apache, without using any third part tool/application.     Available Options to Prevent DDoS : You can use various mentioned methods to achieve the same. But using WAF, CDN, etc will cost extra dollars. Which might not be necessary for a small scale application.   Use a Web Application Firewall (WAF): A WAF can help detect and block malicious traffic before it reaches your Apache server. It can also help block common attack vectors, such as SQL injection and cross-site scripting (XSS). Install mod_evasive: mod_evasive is an Apache module that helps detect and block DDoS attac...
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Difference between Adobe AEM Enterprise vs Adobe AEM as a Cloud Service

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Difference between Adobe AEM Enterprise VS Adobe AEM as a Cloud Service. ( AEMaaCS) Adobe Manages Services Enterprise (AMS) and AEM as a Cloud Service (AEMaaCS) are two different offering by Adobe for AEM.   While AMS is more of a hosting offers for AEM (similar to on-premise setups but run managed by Adobe), While AEMaaCS is a SaaS offering.    In AMS you can have access of your servers , can login and check the required files by your self & will have a dedicated Customer Success Engineer, while in AEMaaCS is completely SAS and you won’t have any access of servers , for everything you need Cloud manager.   Below are the Major difference between AMS Enterprise and AEMaaCS. Please note these difference are as of March 2023. Post this things may differ.  The following article can be referred for AEMaaCS details  AEM as a Cloud Service
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how to clear dispatcher cache in aem ?

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How to clear dispatcher cache in aem ? As you may know, the Dispatcher cache in Adobe Experience Manager (AEM) is used to improve the performance of your website by caching static resources and pages. However, sometimes you may need to clear the cache to ensure that the latest content and changes are displayed on your website. In this blog post, we'll show you how to clear the Dispatcher cache in AEM.   This method will clear the entire Dispatcher cache, including all cached pages and resources. Keep in mind that clearing the cache may affect the performance of your website, as it may take some time to rebuild the cache. Clear Cache using the Dispatcher Flush Agent You can use the Dispatcher Flush Agent. Follow these steps:   Log in to your AEM instance and navigate to http://localhost:4502/etc/replication/agents.author.html . Click on the "Dispatcher Flush" agent to open the agent's configuration page. Clic...
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