Hi, When using the setting "Send NTLMv2 Response only" on my windows machines i get this error message in my samba log. winbindd_pam_auth_crap: invalid password length 24/260 It's working when Using "Send NTLMv2 if negotiated" setting. Samba:Version 3.0.24-1 Squid Cache: Version 2.6.STABLE18 configure options: '--host=i686-pc-linux-gnu' '--build=i686-pc-linux-gnu' '--target=i586-endian-linux' '--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--includedir=/usr/include' '--libdir=/usr/lib' '--libexecdir=/usr/libexec' '--sharedstatedir=/usr/com' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--exec_prefix=/usr' '--bindir=/usr/sbin' '--libexecdir=/usr/lib/squid' '--localstatedir=/var' '--datadir=/usr/share' '--sysconfdir=/etc/squid' '--enable-epoll' '--enable-snmp' '--enable-removal-policies=heap,lru' '--enable-storeio=aufs,coss,diskd,null,ufs' '--enable-ssl' '--with-openssl=/usr/kerberos' '--enable-delay-pools' '--enable-linux-netfilter' '--with-pthreads' '--enable-ntlm-auth-helpers=SMB,fakeauth' '--enable-external-acl-helpers=ip_user,ldap_group,unix_group,wbinfo_group' '--enable-auth=basic,digest,ntlm' '--enable-digest-auth-helpers=password' '--with-winbind-auth-challenge' '--enable-useragent-log' '--enable-referer-log' '--disable-dependency-tracking' '--enable-cachemgr-hostname=localhost' '--enable-underscores' '--enable-basic-auth-helpers=LDAP,MSNT,NCSA,PAM,SMB,YP,getpwnam,multi-domain-NTLM,SASL' '--enable-cache-digests' '--disable-ident-lookups' '--enable-truncate' '--enable-arp-acl' '--with-large-files' '--enable-follow-x-forwarded-for' '--enable-wccpv2' '--enable-fd-config' '--with-maxfd=102762' squid.conf # auth_param ntlm program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp auth_param ntlm children 20 smb.conf workgroup = domain.local password server = dc1 dc2 security = ADS realm = domain.local winbind uid = 10000-20000 winbind gid = 10000-20000 winbind use default domain = Yes local master = no winbind separator = + unix charset = UTF8 hosts allow = localhost interfaces = br0 br1 br2 bind interfaces only = yes preferred master = no dns proxy = no socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 client NTLMv2 auth = yes krb5.conf [logging] default = FILE:/var/log/krb5libs.log kdc = FILE:/var/log/krb5kdc.log admin_server = FILE:/var/log/kadmind.log [libdefaults] default_realm = DOMAIN.LOCAL dns_lookup_realm = false dns_lookup_kdc = false ticket_lifetime = 24h forwardable = yes default_tgs_enctypes = DES-CBC-CRC DES-CBC-MD5 RC4-HMAC default_tkt_enctypes = DES-CBC-CRC DES-CBC-MD5 RC4-HMAC preferred_enctypes = DES-CBC-CRC DES-CBC-MD5 RC4-HMAC [realms] DOMAIN.LOCAL = { kdc = dc1 kdc = dc2 } [domain_realm] .kerberos.server = dc1 [kdc] profile = /var/kerberos/krb5kdc/kdc.conf [appdefaults] pam = { debug = false ticket_lifetime = 36000 renew_lifetime = 36000 forwardable = true krb4_convert = false }