kadmind fails to start

[Anno Nühm]

Hi,

I am in the wake of setting up ad MIT Kerberos5 kdc on a Raspberry Pi 2.

As being a noob in such matters, I spent quite a fair number of hours on The Net, reading various documents, blogs, posts, forum entries, which helped really a lot.

Presently I am trying to get kadmind up and running, which unfortunately I am struggling with. In the corresponding log file it is reading something like 

    May 19 18:12:00 MyKdc-01 kadmind[3412](info): No dictionary file specified, continuing without one.
    May 19 18:12:00 MyKdc-01 kadmind[3412](info): setting up network...
    May 19 18:12:00 MyKdc-01 kadmind[3412](info): setsockopt(9,IPV6_V6ONLY,1) worked
    May 19 18:12:00 MyKdc-01 kadmind[3412](info): setsockopt(11,IPV6_V6ONLY,1) worked
    May 19 18:12:00 MyKdc-01 kadmind[3412](Error): Address already in use - Cannot bind server socket on 0.0.0.0.749
    May 19 18:12:00 MyKdc-01 kadmind[3412](Error): Failed setting up a RPC socket (for 0.0.0.0.749)
    May 19 18:12:00 MyKdc-01 kadmind[3412](Error): Address already in use - Error setting up network

My /etc/krb5.conf

    [libdefaults]
    	default_realm = MYDOM.LOCAL
    
    	kdc_timesync = 1
    	ccache_type = 4
    	forwardable = true
    	proxiable = true
    
    	fcc-mit-ticketflags = true
    
    [realms]
    	MYDOM.LOCAL = {
    		kdc = mykdc-01.mydom.local:88
    		admin_server = mykdc-01.mydom.local:749
    		default_domain = mydom.local
    	}
    [domain_realm]
    	.local = MYDOM.LOCAL

and my /etc/krb5kdc/kdc.conf

    [kdcdefaults]
    	kdc_listen = 88
    	kdc_tcp_listen = 88
    
    [realms]
        MYDOM.LOCAL = {
        kadmind_port = 749
        max_life = 10h 0m 0s
        max_renewable_life = 7d 0h 0m 0s
        master_key_type = des3-hmac-sha1
        default_principal_flags = +preauth
        database_name = /var/lib/krb5kdc/principal
        admin_keytab = FILE:/etc/krb5kdc/kadm5.keytab
        acl_file = /etc/krb5kdc/kadm5.acl
        key_stash_file = /etc/krb5kdc/stash
    }
    
    [logging]
        kdc = FILE:/var/log/krb5/krb5kdc.log
        admin_server = FILE:/var/log/krb5/kadmin.log
        default = FILE:/var/log/krb5/krb5lib.log

Any hint as how to tackle this one would be more than appreciated. :)
-
Anno