Authoritative DNS Migration Question
I have 3 DNS servers, two existing, one new:
DNS (P): abc.xyz (1.1.1.1) - Primary
DNS (S): a.abc.xyz (1.1.1.2) - Secondary. Authoritative for a.abc.xyz, b.zbc.xyz, c.zbc.xyz.
DNS (M): a.abc.xyz (1.1.1.3) - Migrated: New Secondary.
I need to migrate DNS (S) to DNS (M) in such a way as not to incur downtime on VM's dependent on "DNS (S)" .
Tried to add "DNS (M)" to the list of forwarders on "DNS (S)" but that did not work and entries still resolved on "DNS (S)" . Used "forward only". ( DNS forward only )
What would be the best approach to do this sort of migration without incurring downtime on the VM's dependent on "DNS (S)" ? I'm hoping for a gradual migration so we have time to eventually migrate all VM's to the new DNS then cut over all delegated domains over to the new one.
Or perhaps I could reconfigure the "DNS (D)" pair for a cluster, adjust the delegation on "DNS (P)" for new IP's then shut down "DNS (S)" ?
Option I would prefer not to use is a big bang approach where we 'hope' to forward everything in one shot expecting not to miss anything using the "DNS (S)" servers. ( Something always goes wrong in such an approach for hundreds of VM's. )
Cheers,
dns migration
asked 4 hours ago
DigitalTidBitsDigitalTidBits
163
add a comment |
I have 3 DNS servers, two existing, one new:
DNS (P): abc.xyz (1.1.1.1) - Primary
DNS (S): a.abc.xyz (1.1.1.2) - Secondary. Authoritative for a.abc.xyz, b.zbc.xyz, c.zbc.xyz.
DNS (M): a.abc.xyz (1.1.1.3) - Migrated: New Secondary.
I need to migrate DNS (S) to DNS (M) in such a way as not to incur downtime on VM's dependent on "DNS (S)" .
Tried to add "DNS (M)" to the list of forwarders on "DNS (S)" but that did not work and entries still resolved on "DNS (S)" . Used "forward only". ( DNS forward only )
What would be the best approach to do this sort of migration without incurring downtime on the VM's dependent on "DNS (S)" ? I'm hoping for a gradual migration so we have time to eventually migrate all VM's to the new DNS then cut over all delegated domains over to the new one.
Or perhaps I could reconfigure the "DNS (D)" pair for a cluster, adjust the delegation on "DNS (P)" for new IP's then shut down "DNS (S)" ?
Option I would prefer not to use is a big bang approach where we 'hope' to forward everything in one shot expecting not to miss anything using the "DNS (S)" servers. ( Something always goes wrong in such an approach for hundreds of VM's. )
Cheers,
dns migration
asked 4 hours ago
DigitalTidBitsDigitalTidBits
163
1
Is any part of this a UNIX/Linux question?
– Jeff Schaller
2 hours ago
add a comment |
I have 3 DNS servers, two existing, one new:
DNS (P): abc.xyz (1.1.1.1) - Primary
DNS (S): a.abc.xyz (1.1.1.2) - Secondary. Authoritative for a.abc.xyz, b.zbc.xyz, c.zbc.xyz.
DNS (M): a.abc.xyz (1.1.1.3) - Migrated: New Secondary.
I need to migrate DNS (S) to DNS (M) in such a way as not to incur downtime on VM's dependent on "DNS (S)" .
Tried to add "DNS (M)" to the list of forwarders on "DNS (S)" but that did not work and entries still resolved on "DNS (S)" . Used "forward only". ( DNS forward only )
What would be the best approach to do this sort of migration without incurring downtime on the VM's dependent on "DNS (S)" ? I'm hoping for a gradual migration so we have time to eventually migrate all VM's to the new DNS then cut over all delegated domains over to the new one.
Or perhaps I could reconfigure the "DNS (D)" pair for a cluster, adjust the delegation on "DNS (P)" for new IP's then shut down "DNS (S)" ?
Option I would prefer not to use is a big bang approach where we 'hope' to forward everything in one shot expecting not to miss anything using the "DNS (S)" servers. ( Something always goes wrong in such an approach for hundreds of VM's. )
Cheers,
dns migration
asked 4 hours ago
DigitalTidBitsDigitalTidBits
163
I have 3 DNS servers, two existing, one new:
DNS (P): abc.xyz (1.1.1.1) - Primary
DNS (S): a.abc.xyz (1.1.1.2) - Secondary. Authoritative for a.abc.xyz, b.zbc.xyz, c.zbc.xyz.
DNS (M): a.abc.xyz (1.1.1.3) - Migrated: New Secondary.
I need to migrate DNS (S) to DNS (M) in such a way as not to incur downtime on VM's dependent on "DNS (S)" .
Tried to add "DNS (M)" to the list of forwarders on "DNS (S)" but that did not work and entries still resolved on "DNS (S)" . Used "forward only". ( DNS forward only )
What would be the best approach to do this sort of migration without incurring downtime on the VM's dependent on "DNS (S)" ? I'm hoping for a gradual migration so we have time to eventually migrate all VM's to the new DNS then cut over all delegated domains over to the new one.
Or perhaps I could reconfigure the "DNS (D)" pair for a cluster, adjust the delegation on "DNS (P)" for new IP's then shut down "DNS (S)" ?
Option I would prefer not to use is a big bang approach where we 'hope' to forward everything in one shot expecting not to miss anything using the "DNS (S)" servers. ( Something always goes wrong in such an approach for hundreds of VM's. )
Cheers,
dns migration
dns migration
asked 4 hours ago
DigitalTidBitsDigitalTidBits
163
asked 4 hours ago
DigitalTidBitsDigitalTidBits
163
asked 4 hours ago
DigitalTidBitsDigitalTidBits
163
asked 4 hours ago
DigitalTidBitsDigitalTidBits
163
asked 4 hours ago
DigitalTidBitsDigitalTidBits
163
163
1
Is any part of this a UNIX/Linux question?
– Jeff Schaller
2 hours ago
add a comment |
1
Is any part of this a UNIX/Linux question?
– Jeff Schaller
2 hours ago
1
1
Is any part of this a UNIX/Linux question?
– Jeff Schaller
2 hours ago
Is any part of this a UNIX/Linux question?
– Jeff Schaller
2 hours ago
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "106"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f503008%2fauthoritative-dns-migration-question%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Unix & Linux Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f503008%2fauthoritative-dns-migration-question%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
Is any part of this a UNIX/Linux question?
– Jeff Schaller
2 hours ago