Hi, I have a domain with 2008 and 2003 DCs. If I genus a keytab in windows 2008 only work with 2008 server's and if I genus a keytab with 2003 it not work in 2008 or 2003. The last case error example [root@proxyprueba ~]# kinit -V -k -t /etc/squid/.keytab proxyprueba.xxx.xxx Using default cache: /tmp/krb5cc_0 Using principal: proxyprueba.xxx.xxx@xxxxxxx Using keytab: /etc/squid/.keytab kinit: Client not found in Kerberos database while getting initial credentials I use ktpass for generate the ticket C:\>ktpass -princ HTTP/srvproxy.sertecin.local@SERTECIN.LOCAL -mapuser sertecin\srvproxy -pass admin1234 -crypto rc4-hmac-nt -ptype krb5_nt_principal -out squid.keytab Can I generate a keytab for 2008 and 2003 dc's and XP/7 clients? Does keytab work with squid_krb_auth, in affirmative case? Is MNTL my unique option? [root@proxyprueba ~]# more /etc/krb5.conf [logging] default = FILE:/var/log/krb/krb5libs.log kdc = FILE:/var/log/krb/krb5kdc.log admin_server = FILE:/var/log/krb/kadmind.log [libdefaults] default_realm = XXX.XXX default_tgs_enctypes = rc4-hmac default_tkt_enctypes = rc4-hmac [realms] ABG.CORP = { default_domain = xxx.xxx ; kdc = srv-valdc01.xxx.xxx:88 kdc = srv-valdc02.xxx.xxx:88 --> dc site for clients login W2003 admin_server = srv-valdc02.xxx.xxx:749 } [domain_realm] xxx.xxx = XXX.XXX .xxx.xxx = XXX.XXX A lot of thanks -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Kerberos-with-2008-2003-DC-tp4659198.html Sent from the Squid - Users mailing list archive at Nabble.com.