Add nginx/httpd/tomcat/sql practice content (#767)

Author: tungbq

README.md

@@ -254,7 +254,7 @@ We cover a wide range of DevOps topics in our content library, explore them unde
         <td><a href="./topics/nginx/">nginx</a></td>
         <td>📖 <a href="https://nginx.org/en/docs/">View</a></td>
         <td>✔️ <a href="./topics/nginx/basics/">Explore</a></td>
-        <td>🏃 <a href="./topics/nginx/practice/">Explore</a></td>
+        <td>✔️ <a href="./topics/nginx/practice/">Explore</a></td>
     </tr>
     <tr>
         <td><img width="32" src="https://www.hashicorp.com/_next/static/media/packer_on-dark.e64eb06d.svg"></td>
@@ -270,7 +270,7 @@ We cover a wide range of DevOps topics in our content library, explore them unde
         <td><a href="./topics/sql/">sql</a></td>
         <td>📖 <a href="https://github.com/tungbq/devops-basic/blob/main/topics/sql/README.md">View</a></td>
         <td>✔️ <a href="./topics/sql/basics/">Explore</a></td>
-        <td>🏃 <a href="./topics/sql/practice/">Explore</a></td>
+        <td>✔️ <a href="./topics/sql/practice/">Explore</a></td>
     </tr>
     <tr>
         <td><img height="28" src="https://upload.wikimedia.org/wikipedia/commons/a/ab/Haproxy-logo.png" /></td>
@@ -326,15 +326,15 @@ We cover a wide range of DevOps topics in our content library, explore them unde
         <td><a href="./topics/apachetomcat/">tomcat</a></td>
         <td>📖 <a href="https://tomcat.apache.org/">View</a></td>
         <td>✔️ <a href="./topics/apachetomcat/basics/">Explore</a></td>
-        <td>🏃 <a href="./topics/apachetomcat/practice/">Explore</a></td>
+        <td>✔️ <a href="./topics/apachetomcat/practice/">Explore</a></td>
     </tr>
     <tr>
         <td><img width="32" src="https://www.apache.org/logos/res/httpd/default.png" /></td>
         <td>Apache HTTPD</td>
         <td><a href="./topics/apache-httpd/">httpd</a></td>
         <td>📖 <a href="https://httpd.apache.org/">View</a></td>
         <td>✔️ <a href="./topics/apache-httpd/basics/">Explore</a></td>
-        <td>🏃 <a href="./topics/apache-httpd/practice/">Explore</a></td>
+        <td>✔️ <a href="./topics/apache-httpd/practice/">Explore</a></td>
     </tr>
     <tr>
         <td><img height="28" width="32" src="https://cdn.worldvectorlogo.com/logos/snyk.svg" /></td>

topics/apache-httpd/practice/README.md

@@ -1 +1,5 @@
-...coming soon
+## Apache HTTPD
+
+- Reverse Proxy Guide: https://httpd.apache.org/docs/2.4/howto/reverse_proxy.html
+- Working with .htaccess files: https://httpd.apache.org/docs/2.4/howto/htaccess.html
+- Caching Guide: https://httpd.apache.org/docs/2.4/caching.html

topics/apachetomcat/practice/README.md

@@ -1 +1,3 @@
-...coming soon
+## Apache Tomcat practice
+
+- Tomcat Web Application Deployment: https://tomcat.apache.org/tomcat-11.0-doc/deployer-howto.html

topics/nginx/practice/README.md

@@ -1 +1,4 @@
-...coming soon
+## Nginx practice
+
+- Using nginx as HTTP load balancer: https://nginx.org/en/docs/http/load_balancing.html
+- NGINX Reverse Proxy: https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/

topics/sql/basics/README.md

@@ -1,4 +1,4 @@
-Coming soon...# MySQL basic hands-on
+# MySQL basics
 
 This hands-on will:
 

topics/sql/practice/README.md

@@ -1 +1,5 @@
-...coming soon
+## MySQL practice
+
+- MySQL Exercises: https://www.w3schools.com/mysql/mysql_exercises.asp
+- MySQL Exercises, Practice, Solution: https://www.w3resource.com/mysql-exercises/
+- https://www.sql-practice.com/