HTTP
HTTP
- What is this?
- What is it for?
- Web clients?
- Web Servers?
- Default port?
- What layer of OSI model?
HTTP Transmission
- Client makes request to server
http://host:port/path/to/document- What are the different parts above?
- Server responds with requested file if it has it.
Virtual Hosts (Server)
- Find matching host in list of enabled virtual hosts
- if no match, serve default page
- What document root do I look in?
- Find requested file in the document root.
- If file exists, return it, otherwise err.
Apache2 Installation Steps
apt-get install apache2- configure virtual hosts
- create document root
- add new names for sites to dns with CNAME records
- enable site with
a2ensite - restart apache
My HTTP example
Server: www.thegummibear.com/144.38.199.165
| Virtual Host | Document Root |
| squishy.thegummibear.com | /var/www/html/squishy.thegummibear.com |
| iateat.thegummibear.com | /var/www/html/iateat.thegummibear.com |
| www.thegummibear.com | /var/www/html/www.thegummibear.com |
HTTP Troubleshooting
- Did you:
- enable site
- restart/reload apache
- configure document root
- check log files
/var/log/apache2 - check for typos
- add your DNS records
- dig
Last Updated 05/08/2023