HTTP Flow¶
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Notes on DNS
Browsers typically check local resources first for host records such as /etc/hosts
on linux or
c:\Windows\System32\Drivers\etc\hosts
on windows.
Additionally, all domain names need to be resolved because servers typically can't communicate without an IP address.
Flow Breakdown¶
- User enters URL (acme.org) into browser.
- Browser sends request to DNS (Domain Name System) server to resolve the IP address.
- DNS server looks up the IP for acme.org and responds with the host's IP Address.
- Browser sends a
HTTP GET
request to the default HTTP port (80) on the host's IP address asking for the root/
path. - Web server receives the request, processes it, and returns the configured default index file provided when root
/
is requested.
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