| 1 | 1. Run: |
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| 2 | |
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| 3 | # dnssec-keygen -a HMAC-MD5 -b 128 -n HOST mydomain.key |
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| 4 | |
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| 5 | You will see something like: |
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| 6 | |
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| 7 | Kmydomain.key.+157+32373 |
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| 8 | |
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| 9 | 2. Then do: |
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| 10 | |
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| 11 | # cat Kmydomain.key.+157+32373.private |
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| 12 | |
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| 13 | You will see something similar: |
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| 14 | |
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| 15 | Private-key-format: v1.2 |
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| 16 | Algorithm: 157 (HMAC_MD5) |
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| 17 | Key: tHTRSKKrmyGmPnzNCf2IRA== |
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| 18 | Bits: AAA= |
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| 19 | |
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| 20 | ... the "Key:" is the important here, so copy "tHTRSKKrmyGmPnzNCf2IRA==" |
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| 21 | |
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| 22 | |
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| 23 | 3. Add the following to your named.conf: |
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| 24 | |
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| 25 | options { |
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| 26 | ... |
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| 27 | allow-transfer { none; }; |
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| 28 | ... |
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| 29 | }; |
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| 30 | |
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| 31 | logging { |
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| 32 | ... |
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| 33 | }; |
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| 34 | |
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| 35 | key mydomain-key { |
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| 36 | algorithm hmac-md5; |
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| 37 | secret "tHTRSKKrmyGmPnzNCf2IRA=="; |
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| 38 | }; |
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| 39 | |
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| 40 | zone "mydomain.menog" { |
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| 41 | // ... here is your zone definition from before |
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| 42 | allow-transfer { key mydomain-key; }; |
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| 43 | }; |
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| 44 | |
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| 45 | ... |
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| 46 | |
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| 47 | 4. Restart named |
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| 48 | |
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| 49 | 5. Try and make a zone transfer from ANOTER machine -- ask your neighbors: |
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| 50 | |
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| 51 | # dig @10.10.1.XXX axfr mydomain.menog |
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| 52 | |
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| 53 | Look at /etc/namedb/logs/general and /etc/namedb/logs/transfers |
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| 54 | |
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| 55 | What do you notice ? |
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| 56 | |
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| 57 | 6. Try again with the key: |
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| 58 | |
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| 59 | # dig@10.10.1.XXX axfr mydomain.menog -y mydomain-key:tHTRSKKrmyGmPnzNCf2IRA== |
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| 60 | |
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| 61 | ... what happens now ? |
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| 62 | |
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| 63 | Check the logs again. |
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| 64 | |
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| 65 | |
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| 66 | 7. ON THE SLAVE: |
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| 67 | |
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| 68 | - Remove the zone from /etc/namedb/slave/mydomain.menog |
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| 69 | - Restart named (/etc/rc.d/named restart) |
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| 70 | |
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| 71 | Check that the zone is gone AND that the slave wasn't able to reload it. |
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| 72 | |
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| 73 | - What do you see in the MASTER logs (transfers and general) ? |
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| 74 | - What do you see in the SLAVE logs (transfers and general) ? |
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| 75 | |
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| 76 | 8. Still on the SLAVE: |
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| 77 | |
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| 78 | Find the statement for the zone: |
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| 79 | |
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| 80 | zone "mydomain.menog" { |
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| 81 | type slave; |
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| 82 | masters { 10.10.1.XXX; }; |
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| 83 | file "slave/mydomain.menog"; |
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| 84 | }; |
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| 85 | |
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| 86 | ... and add the key, and a statement to tell which key to use |
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| 87 | when talking to "10.10.1.XXX" (the master): |
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| 88 | |
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| 89 | key mydomain-key { |
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| 90 | algorithm hmac-md5; |
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| 91 | secret "tHTRSKKrmyGmPnzNCf2IRA=="; |
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| 92 | }; |
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| 93 | server 10.10.1.203 { |
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| 94 | keys { mydomain-key; }; |
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| 95 | }; |
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| 96 | |
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| 97 | 9. Restart named |
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| 98 | |
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| 99 | - Is the zone "mydomain.menog" back in the slave/ directory ? |
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| 100 | - What do you see in the MASTER logs (transfers and general) ? |
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| 101 | - What do you see in the SLAVE logs (transfers and general) ? |
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