SRV IS OK.
but why KDC error?
Try nslookup -type=SRV _ldap.....I forget the exact command
Sent from my iPhone[root@localhost ~]# host -t SRV _ldap._tcp.startn.com_ldap._tcp.startn.com has SRV record 10 0 389 authen.startn.com.[root@localhost ~]# dig authen.startn.com; <<>> DiG 9.9.2-rl.028.23-P2-RedHat-9.9.2-10.P2.fc18 <<>> authen.startn.com;; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39385;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 2;; OPT PSEUDOSECTION:; EDNS: version: 0, flags:; udp: 4096;; QUESTION SECTION:;authen.startn.com. IN A;; ANSWER SECTION:authen.startn.com. 86400 IN A 10.0.10.182;; AUTHORITY SECTION:startn.com. 86400 IN NS engine.startn.com.;; ADDITIONAL SECTION:engine.startn.com. 86400 IN A 10.0.10.181