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<p class="MsoNormal">Yes, I did mean the config in /etc/kea. Getting the config with config-write seems to be the same as config-get, it returns the config with all the defaults, example:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">From config-write:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">{<o:p></o:p></p>
<p class="MsoNormal"> "Dhcp4": {<o:p></o:p></p>
<p class="MsoNormal"> "allocator": "iterative",<o:p></o:p></p>
<p class="MsoNormal"> "authoritative": false,<o:p></o:p></p>
<p class="MsoNormal"> "boot-file-name": "",<o:p></o:p></p>
<p class="MsoNormal"> "calculate-tee-times": false,<o:p></o:p></p>
<p class="MsoNormal"> "control-socket": {<o:p></o:p></p>
<p class="MsoNormal"> "socket-name": "/tmp/kea4-ctrl-socket",<o:p></o:p></p>
<p class="MsoNormal"> "socket-type": "unix"<o:p></o:p></p>
<p class="MsoNormal"> },<o:p></o:p></p>
<p class="MsoNormal"> "ddns-conflict-resolution-mode": "check-with-dhcid",<o:p></o:p></p>
<p class="MsoNormal"> "ddns-generated-prefix": "myhost",<o:p></o:p></p>
<p class="MsoNormal"> "ddns-override-client-update": false,<o:p></o:p></p>
<p class="MsoNormal"> "ddns-override-no-update": false,<o:p></o:p></p>
<p class="MsoNormal"> "ddns-qualifying-suffix": "",<o:p></o:p></p>
<p class="MsoNormal"> "ddns-replace-client-name": "never",<o:p></o:p></p>
<p class="MsoNormal"> "ddns-send-updates": true,<o:p></o:p></p>
<p class="MsoNormal"> "ddns-update-on-renew": false,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">And /etc/kea/kea-dhcp4.conf<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><br>
{<o:p></o:p></p>
<p class="MsoNormal"> "Dhcp4": {<o:p></o:p></p>
<p class="MsoNormal"> "store-extended-info": true,<o:p></o:p></p>
<p class="MsoNormal"> "interfaces-config": {<o:p></o:p></p>
<p class="MsoNormal"> "interfaces": [<o:p></o:p></p>
<p class="MsoNormal"> "eth0/192.168.1.1"<o:p></o:p></p>
<p class="MsoNormal"> ]<o:p></o:p></p>
<p class="MsoNormal"> },<o:p></o:p></p>
<p class="MsoNormal"> "control-socket": {<o:p></o:p></p>
<p class="MsoNormal"> "socket-type": "unix",<o:p></o:p></p>
<p class="MsoNormal"> "socket-name": "/tmp/kea4-ctrl-socket"<o:p></o:p></p>
<p class="MsoNormal"> },<o:p></o:p></p>
<p class="MsoNormal"> "lease-database": {<o:p></o:p></p>
<p class="MsoNormal"> "type": "memfile",<o:p></o:p></p>
<p class="MsoNormal"> "name": "/tmp/kea-dhcp4.csv",<o:p></o:p></p>
<p class="MsoNormal"> "lfc-interval": 7200,<o:p></o:p></p>
<p class="MsoNormal"> "persist": true<o:p></o:p></p>
<p class="MsoNormal"> },<o:p></o:p></p>
<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="color:black">From:
</span></b><span style="color:black">tachibanashita@outlook.com <tachibanashita@outlook.com><br>
<b>Date: </b>Monday, May 12, 2025 at 5:42</span><span style="font-family:"Arial",sans-serif;color:black"> </span><span style="color:black">PM<br>
<b>To: </b>Kea user's list <kea-users@lists.isc.org><br>
<b>Cc: </b>Diogo André de Assumpção <daa@meta.com><br>
<b>Subject: </b>Re: [Kea-users] config-hash-get – uses full config to hash?<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white">“Using the same config that I have loaded in the server” do you mean the config file in /etc/kea? If so, can you use the write-config API to get the configuration
in memory and compare it again? On May 12, 2025, at 2:</span><span style="font-size:1.0pt;font-family:"Arial",sans-serif;color:white"> </span><span style="font-size:1.0pt;color:white">43 AM, Diogo André de Assumpção<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white"><o:p></o:p></span></p>
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<p class="MsoNormal">“Using the same config that I have loaded in the server” do you mean the config file in /etc/kea? If so, can you use the write-config API to get the configuration in memory and compare it again?
<o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal">On May 12, 2025, at 2:43<span style="font-family:"Arial",sans-serif"> </span>AM, Diogo André de Assumpção via Kea-users <kea-users@lists.isc.org> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi all,<span class="apple-converted-space"> </span><br>
<br>
I was exploring using the `config-hash-get` command to get a hash of the loaded config and then compare with a candidate config to see if anything was change before loading.<br>
<br>
Using the same config that I have loaded in the server, I couldn’t get a hash that matched the one we get via the `config-hash-get` command.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Is that something in the way I’m generating the hash? I’m passing the entire dhcp4 config (ie. {"Dhcp4":…}) to the hash function.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">I also noticed that if I do a `config-get` command, the output will contain every optional field that is usually not present in a manually generated config. Could that be the reason why the hashes don’t match?<br>
<br>
Thanks,<o:p></o:p></p>
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<p class="MsoNormal">– Diogo<o:p></o:p></p>
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