Package: libgnutls26 Followup-For: Bug #514578 I had the same problem today with 2.4.2-5, on my Lenny boxes. 2.4.2-6 also doesn't work. Reverted not to 2.4.2-4. I will regenerate all certificates but this bug is quite invasive. Mayby there should be some flags in configuration, or more verbose information about problem on upgrade.