Add forward proxy content

* Update 102-forward-proxy.md

* Update 102-forward-proxy.md

* Update 102-forward-proxy.md

content/roadmaps/102-devops/content/104-setting-up-x/102-forward-proxy.md

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-# Forward proxy
+# Forward Proxy
+
+Forward Proxy, often called proxy server is a server that sits in front of a group of **client machines**. When those computers make requests to sites and services on the Internet, the proxy server intercepts those requests and then communicates with web servers on behalf of those clients, like a middleman.
+
+**Common Uses:**
+
+* To block access to certain content
+* To protect client identity online
+* To provide restricted internet to organizations
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.fortinet.com/resources/cyberglossary/proxy-server'>What is Forward Proxy?</BadgeLink>
+<BadgeLink badgeText='Read' href='https://oxylabs.io/blog/reverse-proxy-vs-forward-proxy'>Forward vs Reverse Proxy</BadgeLink>