Here are applications that are known to work with UML:
| Application | Version | Reported by | Notes |
|---|---|---|---|
| Apache | 1.3.22 | WLS | |
| Bash | 2.05 | WLS | |
| Bind | 9.2.1 | WLS | |
| Bitkeeper | 2.1.6-pre5 | JD | |
| Half-life server | 4.1.1.0 | WLS | |
| Imap/ipop | 2001a | WLS | |
| Mod_perl | 1.27 | BT | |
| MySQL | 11.18 | BT | |
| Openssh | 3.3p1 | WLS | |
| P0f | 1.8.1 | WLS | |
| Pine | 4.44 | WLS | |
| Rsync | 2.5.4 | EW | |
| Sendmail | 8.11.6 | WLS | |
| Squid | 2.4.STABLE6 | WLS | |
| Tomcat | JD | Needs kernel >= 2.4.19-35um | |
| UML itself | JD | UML can actually run inside itself. | |
| Wu-ftpd | 2.6.1 | WLS | |
| xntp | 5.93 | WLS | |