Untangle Inc. is offering open source security software of the same name, which acts as a spam blocker, intrusion prevent system, virtual private network and firewall.

Untangle can be installed as a dedicated server performing routing and firewall functions, a transparent bridge or a re-router.

It also includes add-ons to commercial software packages from other vendors, such as Kaspersky Labs. Untangle says its firewall can create DMZs and perform network address translation.

If you don’t mind waiting for an 850 MB file, you can download Untangle from this link.

If you download this software and find it useful, come back and rate it. And if you’ve got links to useful downloads, e-mail ‘em to us using the e-mail link.