How to make use of conditional formating to identify duplicates between different sheets?

Hi guys,
I have property address in sheet 1 in column G and another list of property address in sheet 2 column I, i would like to identify the duplicates between the property address in this two sheet.
Your help will be much appreciated!

Checking duplicate addresses can be very difficult so it will help if you can post a sample file.

Attach a sample workbook. Make sure there is just enough data to demonstrate your need. Include a BEFORE sheet and an AFTER sheet in the workbook if needed to show the process you're trying to complete or automate. Make sure your desired results are shown, mock them up manually if necessary.

Remember to desensitize the data.

Click on GO ADVANCED and then scroll down to Manage Attachments to open the upload window.

1 make a named range on the second sheet (_2) in target range
2 on sheet 1 make conditional format rule in target range, in this case search values on sheet 1 in range _2