# 
[libdefaults] 
    default_realm = SCHOOL.EDU 
    default_tkt_enctypes = des3-hmac-sha1 des-cbc-crc 
    default_tgs_enctypes = des3-hmac-sha1 des-cbc-crc 

[realms] 
    SCHOOL.EDU = { 
        kdc = kerberos1.school.edu 
        kdc = kerberos2.school.edu 
        kdc = kerberos3.school.edu 
        admin_server = kerberos1.school.edu 
    }