| 1 | Enabling DNSSEC validation with the root trust anchor in Unbound |
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| 2 | ---------------------------------------------------------------- |
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| 3 | |
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| 4 | You need to log in to your resolver (cache) machine, i.e. for group 1, you |
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| 5 | would use resolv.grp1.dns.nsrc.org, as you did in the unbound config |
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| 6 | exercise |
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| 7 | |
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| 8 | 1. Grab the root key |
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| 9 | |
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| 10 | NOTE: This is only for the purpose of this lab - on the Internet, |
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| 11 | you would simply use "unbound-anchor" to download the real root.key, |
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| 12 | and set "auto-trust-anchor-file:" in unbound.conf, and let unbound update |
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| 13 | the key when necessary. |
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| 14 | |
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| 15 | In this lab, ask your instructor if we are using the "RZM" or not. |
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| 16 | |
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| 17 | With RZM |
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| 18 | -------- |
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| 19 | |
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| 20 | |
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| 21 | Go to https://rzm.dnssek.org/, and copy the trust-anchor |
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| 22 | statement (the ENTIRE line) from this page and paste it into |
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| 23 | a file, /usr/local/etc/unbound/root.key |
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| 24 | |
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| 25 | Without RZM |
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| 26 | ----------- |
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| 27 | |
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| 28 | Grab the key from the root server: |
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| 29 | |
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| 30 | # scp sysadm@a.root-servers.net:root.key /usr/local/etc/unbound/root.key |
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| 31 | |
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| 32 | Edit the /usr/local/etc/unbound/unbound.conf file: |
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| 33 | |
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| 34 | Find the "trust-anchor-file:" line, and change it from: |
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| 35 | |
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| 36 | # trust-anchor-file: "" |
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| 37 | |
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| 38 | to |
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| 39 | |
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| 40 | trust-anchor-file: "/usr/local/etc/unbound/root.key" |
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| 41 | |
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| 42 | 2. Reload the nameserver |
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| 43 | |
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| 44 | # service unbound restart |
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| 45 | |
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| 46 | 3. dig @localhost +dnssec mytld. SOA |
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| 47 | |
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| 48 | What do you notice ? |
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