【求助kerberos配置】Cannot contact any KDC for realm 'EXAMPLE.COM'

[大海里的小鱼]

最近涉及网络服务安全，需要配置kerberos遇到一个问题Cannot contact any KDC for realm 'EXAMPLE.COM' while getting initial credentials!!!搜了很多，一直没有解决，如有牛人帮助解决，积分送上！在red hat 5中配置kerberos
krb.conf
[logging]
default = FILE:/var/log/krb5libs.log
kdc = FILE:/var/log/krb5kdc.log
admin_server = FILE:/var/log/kadmind.log

[libdefaults]
default_realm = EXAMPLE.COM
dns_lookup_realm = false
dns_lookup_kdc = false
ticket_lifetime = 24h
forwardable = yes

[realms]
EXAMPLE.COM = {
kdc = kerberos.example.com:88
admin_server = kerberos.example.com:749
default_domain = example.com
}

[domain_realm]
.example.com = EXAMPLE.COM
example.com = EXAMPLE.COM

[kdc]
profile = /usr/local/var/krb5kdc/kdc.conf

[appdefaults]
pam = {
debug = false
ticket_lifetime = 36000
renew_lifetime = 36000
forwardable = true
krb4_convert = false
}

kdc.conf
[kdcdefaults]
acl_file = /usr/local/var/krb5kdc/kadm5.acl
dict_file = /usr/share/dict/words
admin_keytab = /usr/local/var/krb5kdc/kadm5.keytab
v4_mode = nopreauth

[realms]
EXAMPLE.COM = {
master_key_type = des3-hmac-sha1
supported_enctypes = des3-hmac-sha1:normal arcfour-hmac:normal des-
hmac-sha1:normal des-cbc-md5:normal des-cbc-crc:normal des-cbc-crc:v4
des-cbc-crc:afs3
}

hosts
127.0.0.1 localhost.localdomain localhost
192.168.0.201 kerberos.example.com kerberos

防火墙关闭
and DNS设置如下
localhost.localdomain
192.168.0.1

把admin添加成数据库管理员
in kadmin.local
I got this:
kadmin.loal:listprincs
kadmin.local: listprincs
K/[e-mail]
admin/[e-mail]
kadmin/[e-mail]
kadmin/[e-mail]
kadmin/[e-mail]
krbtgt/[e-mail]

admin显示添加成功但是kinit的显示无法连接kdc
[root@localhost krb5kdc]# /usr/local/bin/kinit admin/admin
kinit: Cannot contact any KDC for realm 'EXAMPLE.COM' while getting
initial credentials

[大海里的小鱼]

最后发现是IP设置有问题，与局域网内的有冲突，修改ip之后就可以了，另外ifconfig查看与hosts设置的地址要一样。

[大海里的小鱼]

后来发现是ip设置冲突了，修改ip后，并保证ifconfig与hosts中ip一样就可以了。

[shinehss]

ip设置问题，搞成一样的，避免冲突，使用ifconfig查看，更改housts