The samba version is 3.5.6, and the configure command is "./configure --wth-ctdb = /home/ctdb-1.0.1141 --with-cluster-support --enable-pie=no --with-shared-modules=idmap_tdb2, idmap-ad,idmap-adex,idmap-hash,idmap-ldap, idmap-rid --with-ldap --with-ads --with-winbind" obviously I use samba in clustering, but the problem is FIRST: "When Samba server joined ad successfully, ID command says 'no such user' to me",but wbinfo -u and getent passwd all say yes. " I don't know what the problem is , I copy libnss_winbind.so from the package of samba-3.5.6, make some symbol links, type ldconfig, and also restart winbind . but all these didn't work, but after REBOOT the device of samba server ,and then restart winbind, it worked. Please tell me where the mistake is, and how can i use ID without reboot. SECOND: After I type 'net ads leave -U administrator -S hw-ad.HUAWEI.com', the samba server leave AD, and then I stop winbind, 'getent passwd' didn't show the ad users, but ID command also show the AD user. How can ID command stop show these users? 2012-09-05 xhan2008