Possible value for wifi ca_cert, see rt#245766

network/wireless.markdown

@@ -44,7 +44,7 @@ For most devices automatic mode should work and you can leave everything on defa
 | Wi-Fi security                 | WPA & WPA2 Enterprise                 |
 | Authentication                 | Protected EAP (PEAP)                  |
 | Anonymous identity             | *leave empty*                         |
-| CA certificate                 | *leave empty* / (none)                |
+| CA certificate                 | *leave empty* / (none) / `ethz.ch`    |
 | CA validation                  | Check no CA required / Don't validate |
 | PEAP version                   | Automatic                             |
 | Phase 2 (inner) authentication | MSCHAPv2                              |