Hi All, it just turned out that the new samba needs the krb5 update from 5.1 to work correctly, at least when dealing with AD: > net join -S XXXXXXXX -U YYYYYYYYYYYYYYY > YYYYYYYYYYYYYYY's password: net: relocation error: net: symbol > krb5_get_init_creds_opt_alloc, version krb5_3_MIT not defined in file > libkrb5.so.3 with link time reference This was on a yum-updated SL5.0 system (the latest updates for openldap, net-snmp, pcre, perl und util-linux are pending on this host, but that shouldn't matter). One remedy ist to install the krb5 packages from 5.1. There may be others. BTW, on x86_64 this will also require keyutils-libs.i386 in the repository which TUV has in there in 5.1 but not in 5.0 (and consequently SL5.0 doesn't have it either). We have *not* checked extensively for side effects of upgrading krb5 from 1.5 to 1.6 on SL5.0 without applying all the other 5.1 updates. Cheers, Stephan -- Stephan Wiesand DESY - DV - Platanenallee 6 15738 Zeuthen, Germany