Liferay migration from local to live site

enter image description here

I downloaded Liferay files from a livesite to setup a local environment for some local development. After downloading the files, I run the the catalina file (./catalina.sh start) But unfortunately I got a 404 error.

I'm not sure where to start in setting up Liferay locally.

I think there are some initial settings that I should be doing as I had moved from live server to a local machine.
I think I need to also connect my database. I now have a local copy of the database and is already imported on MySQL. I just need to connect them (im guessing entering my user and password for the database).
Other than downloading the files and starting up the server, I really haven't done anything else yet as I am not sure what setting and configuration I should be doing.

I'm new to Liferay, I apologize for my silliness.

Edit

my portal-ide.properties settings:

enter image description here

Solution

See portal-ext.properties or someelse *.properties file in the root folder of portal.

For error details, see the log file at liferay/tomcat/logs/catalina.out