How to Install the Falcon Sensor


In this document and video of CrowdStrike’s Falcon sensor is installed on an individual system then validated in the Falcon management interface.



Read Video Transcript


List of supported OS:

Unlike traditional AV products, the Falcon Host Sensor can run alongside existing security software. Consequently, there is no need to uninstall existing anti-virus products before installing the Falcon Host Sensor.

Supported browser – Chrome

Installation Steps

Step 1: Activate the account

After purchasing Falcon Host or starting a product trial, look for the following email to begin the activation process.

intro letter

The activation process includes:

1. Setting up a password

2. Establishing a method for 2-factor authentication

Active accounts use the URL using Google Chrome to access the UI.


The next page is where you’ll enter in your desired method for 2-factor authentication. We recommend Google’s Authenticator app. However, Duo Mobile, WinAuth, and JAuth will also work.

Google Authenticator is available in the app store for both iOS and Android

Google Authenticator Android Google Authenticator Apple

After the password page, the next screen will ask for your desired method of 2-factor authentication

2 Factor Authentication

Step 2: Download and install the sensor

Upon verification the Falcon Host UI will open to the Activity App. To download a sensor navigate to Support App by selecting the dialogue bubbles, the last icon on the left. Then select “support”. On the support page, find the desired sensor version and click the red “Download” text on the right.

support and downloads

Windows and Mac

Next, obtain admin privileges. Run the installer for your platform. If prompted, accept the end user license agreement.

Linux (Ubuntu)

$ sudo dpkg -i falcon-sensor_1.0.7-804_amd64.deb

Linux (RHEL or CentOS)

$ sudo yum install falcon-sensor-1.0.0-407.el 6.x86 _64.r pm

After you install the sensor, it will connect to the cloud and check for updates. This process typically takes less than five minutes and no reboot required.


Step 3: Confirm that the sensor is running

Unlike legacy endpoint security products, Falcon Host does not have a user interface on the endpoint. There are no icons in the Windows System Tray or on any status or menu bars on Mac or Linux. Installation verification methods:


From the windows promptrRun the following command to ensure that “STATE” is “RUNNING”

$ sc query csagent



To output a list of details about the sensor running on the host, from the terminal run

$ sysctl cs.


Linux (all distros)

To see if the sensor process is running,run

$ sudo ps -e | grep falcon-sensor


Step 4: Verify sensor visibility in the cloud

Finally, verify that newly installed sensor in the Falcon Host UI. To view a complete list of newly installed sensors in the past 24 hours, go to

Navigate to
Events App > Sensors > Newly Installed Sensors

The hostname of your newly installed sensor will appear on this list within five minutes of installation. If you don’t see your host listed, read through the Sensor Deployment Guide for your platform to troubleshoot connectivity issues.



The resulting actions mean Falcon is active, a sensor deployed, and verified that system can be seen in the Falcon UI.


More resources


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