| Vendor website | Security information |
|---|---|
| Red Hat website (http://www.redhat.com) | Red Hat security web area |
| SuSE website (http://www.novell.com/linux/) | SuSE security announcements SuSE patches, updates, bugfixes |
| Debian website (http://www.debian.org) | Debian security information web area |
| Caldera website (http://www.calderasystems.com) | n/a |
| Slackware website (http://www.slackware.com) | n/a |
| Mandriva website (http://www.mandriva.com) | Mandriva security web area |