# Getting Started with the Host scanner

On this page we will show you how to use the Cryptosense Host scanner to obtain a cryptography scan from the filesystem.

## Prerequisites

Before you use the Host scanner, make sure you have followed the installation instructions.

## Scanning a Filesystem

Choose a directory where you have write access to store the result of the filesystem scan.

### Linux

Put the cs-host-scanner executable inside the directory and run the following command:

./cs-host-scanner \
--root /path/to/root/directory \
--output scan.cst.gz


### Windows

Put the cs-host-scanner.exe executable , the libgmp-10.dll and zlib1.dll libraries together inside it and run the following command:

.\cs-host-scanner.exe 
--root \path\to\root\directory
--output scan.cst.gz


When the Host scanner has finished executing, you'll find a scan.cst.gz trace file in your directory.

This trace file is now ready for uploading to the Cryptosense Analyzer Platform. The directory where the Host scanner writes the trace can be changed with the --output option. See the manual to get a list of the available options, learn how to use those options and learn what else you could do with the Host scanner.