Hello, I came across a starange problem while adding a Window PC to samba domain. I run samba-2.2.5-10 on RH-7.2 with 2.4.9-34enterprise kernel. When I try to add WinNT PC to a domain I get this error: "Machine account for this cmputer does not exist or is unavailable". Obviously there is a problem in creating machine accouts. I checke that account "machine-name" does not exist in /etc/passswd and in /etc/samba/smbpasswd. However if I create "machine-name" account in /etc/passwd and then try to add the PC I get the following error: "Unable to add or change account on the domain. The account information entered does not grant sufficient privilage to create or change account." I should add that I log in a local WinNT machine as local administrator and try to add machine account to a domain as root, so I should have sufficient privilages. It looks like samba root does not map to system root.Another point is that the secont procedure actually create a machine account in /etc/samba/smbpasswd (the one in /etc/passwd was already created manualy before) with password NO PASSWORD. #====== Global File - Defines all virtual Servers + options common to all ================[global] netbios name = testhomes netbios aliases = testadmin testprint testshare server string = testgroup server hosts allow = 168.192. 127. hosts deny = 168.192.128.43 domain admin group = @testadmin workgroup = testgroup log file = /var/log/samba/log.%L ;uncomment below for debugging - can go to level 10 but much more than 3 is useless log level = 3 username map = /etc/samba/smbusers ;common encrypt passwords = yes password level = 0 username level = 0 #winbind enum users = no #winbind enum groups = no interfaces = 168.192.135.20 127.0.0.1 wins support = yes wins proxy = yes enhanced browsing = yes dns proxy = yes remote announce = 168.192.128.3 remote browse sync = 168.192.128.0/testgroup ;debug uid = yes ;debug pid = yes max log size = 1000 ;security = domain encrypt passwords = yes smb passwd file = /etc/samba/smbpasswd username map = /etc/samba/smbusers null passwords = yes obey pam restrictions = yes unix password sync = yes pam password change = yes ;Network perf options change notify timeout = 120 socket options = IPTOS_LOWDELAY TCP_NODELAY SO_KEEPALIVE SO_RCVBUF=14596 SO_SNDBUF=14596 keepalive = 0 ;discard unused connections after five minutes deadtime = 5 ;Raid performance options ;try some benchmarks with different sizes ;write cache size = 65536 ;number of bytes to receive before writing or sending over network (default 16384) ;read size = 14596 ;Netbios options ;name resolve order = lmhosts,hosts,wins,bcast name resolve order = wins,bcast,lmhosts,hosts ;max time in seconds to keep NETBIOS names in cache default is 259300 (3 days) ;#max ttl = 259300 ;max time in seconds to keep NETBIOS names in WINS cache default is 518400 (6 days) ;max wins ttl = 518400 ;min time in seconds to keep NETBIOS names in WINS cache default is 21600 (6 hours) ;min wins ttl = 21600 ;Use Australian defaults - default is 850 (US) ;client code page = 437 ;Stop processes getting out of hand ;max smbd processes = 1000 max open files = 50000 include = /etc/samba/smb.conf.%L Can you please give me some hints how to solve this problem. There is nothing in the log files. Thank you. Regards Pavel Stulik