2.4.120-20250212 ISO image:
https://download.securityonion.net/file/securityonion/securityonion-2.4.120-20250212.iso
MD5: 3FF09F50AB1C9318CF0862DE9816102D
SHA1: 197AFA5A85C5CF95D0289FCD21BED7615FB8DB5C
SHA256: A59D94B09EEB39D8C2B6D0808792EC479B13D96FA7B32C3BEEFB6709C93F6692
Signature for ISO image:
https://github.com/Security-Onion-Solutions/securityonion/raw/2.4/main/sigs/securityonion-2.4.120-20250212.iso.sig
Signing key:
https://raw.githubusercontent.com/Security-Onion-Solutions/securityonion/2.4/main/KEYS
For example, here are the steps you can use on most Linux distributions to download and verify our Security Onion ISO image.
Download and import the signing key:
wget https://raw.githubusercontent.com/Security-Onion-Solutions/securityonion/2.4/main/KEYS -O - | gpg --import -
Download the signature file for the ISO:
wget https://github.com/Security-Onion-Solutions/securityonion/raw/2.4/main/sigs/securityonion-2.4.120-20250212.iso.sig
Download the ISO image:
wget https://download.securityonion.net/file/securityonion/securityonion-2.4.120-20250212.iso
Verify the downloaded ISO image using the signature file:
gpg --verify securityonion-2.4.120-20250212.iso.sig securityonion-2.4.120-20250212.iso
The output should show "Good signature" and the Primary key fingerprint should match what's shown below:
gpg: Signature made Tue 11 Feb 2025 05:26:33 PM EST using RSA key ID FE507013
gpg: Good signature from "Security Onion Solutions, LLC <[email protected]>"
gpg: WARNING: This key is not certified with a trusted signature!
gpg: There is no indication that the signature belongs to the owner.
Primary key fingerprint: C804 A93D 36BE 0C73 3EA1 9644 7C10 60B7 FE50 7013
If it fails to verify, try downloading again. If it still fails to verify, try downloading from another computer or another network.
Once you've verified the ISO image, you're ready to proceed to our Installation guide:
https://docs.securityonion.net/en/2.4/installation.html