2.1 KiB
2.4.190-20251024 ISO image released on 2025/10/24
Download and Verify
2.4.190-20251024 ISO image:
https://download.securityonion.net/file/securityonion/securityonion-2.4.190-20251024.iso
MD5: 25358481FB876226499C011FC0710358
SHA1: 0B26173C0CE136F2CA40A15046D1DFB78BCA1165
SHA256: 4FD9F62EDA672408828B3C0C446FE5EA9FF3C4EE8488A7AB1101544A3C487872
Signature for ISO image:
https://github.com/Security-Onion-Solutions/securityonion/raw/2.4/main/sigs/securityonion-2.4.190-20251024.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-2.4.190-20251024.iso.sig
Download the ISO image:
wget https://download.securityonion.net/file/securityonion/securityonion-2.4.190-20251024.iso
Verify the downloaded ISO image using the signature file:
gpg --verify securityonion-2.4.190-20251024.iso.sig securityonion-2.4.190-20251024.iso
The output should show "Good signature" and the Primary key fingerprint should match what's shown below:
gpg: Signature made Thu 23 Oct 2025 07:21:46 AM EDT using RSA key ID FE507013
gpg: Good signature from "Security Onion Solutions, LLC <info@securityonionsolutions.com>"
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