CourseOutline: bind-transfer.txt

1. Run:

# dnssec-keygen -a HMAC-MD5 -b 128 -n HOST mydomain.key

You will see something like:

        Kmydomain.key.+157+32373

2. Then do:

# cat Kmydomain.key.+157+32373.private

You will see something similar:

        Private-key-format: v1.2
        Algorithm: 157 (HMAC_MD5)
        Key: tHTRSKKrmyGmPnzNCf2IRA==
        Bits: AAA=

... the "Key:" is the important here, so copy "tHTRSKKrmyGmPnzNCf2IRA=="


3.  Add the following to your named.conf:

options {
        ...
        allow-transfer { none; };
        ...
};

logging {
        ...
};

key mydomain-key {
        algorithm hmac-md5;
        secret "tHTRSKKrmyGmPnzNCf2IRA==";
};

zone "mydomain.menog" {
        // ... here is your zone definition from before 
        allow-transfer { key mydomain-key; };
};

...

4. Restart named

5. Try and make a zone transfer from ANOTER machine -- ask your neighbors:

# dig @10.10.1.XXX axfr mydomain.menog

Look at /etc/namedb/logs/general and /etc/namedb/logs/transfers

What do you notice ?

6. Try again with the key:

# dig@10.10.1.XXX axfr mydomain.menog -y mydomain-key:tHTRSKKrmyGmPnzNCf2IRA==

... what happens now ?

Check the logs again.


7. ON THE SLAVE:

- Remove the zone from /etc/namedb/slave/mydomain.menog
- Restart named (/etc/rc.d/named restart)

Check that the zone is gone AND that the slave wasn't able to reload it.

- What do you see in the MASTER logs (transfers and general) ?
- What do you see in the SLAVE logs (transfers and general) ?

8. Still on the SLAVE:

Find the statement for the zone:

zone "mydomain.menog" {
        type slave;
        masters { 10.10.1.XXX; };
        file "slave/mydomain.menog";
};

... and add the key, and a statement to tell which key to use
when talking to "10.10.1.XXX" (the master):

key mydomain-key {
        algorithm hmac-md5;
        secret "tHTRSKKrmyGmPnzNCf2IRA==";
};
server 10.10.1.203 {
        keys { mydomain-key; };
};

9. Restart named

- Is the zone "mydomain.menog" back in the slave/ directory ?
- What do you see in the MASTER logs (transfers and general) ?
- What do you see in the SLAVE logs (transfers and general) ?