Multiple parent nodes to one or two child nodes (mail)
Hello,
Management has asked me to take a look at the possibility to separate the mail services.
They want to create one or two larger mail only servers and redistribute quota for site hosting.
Is it possible to create a setup like below with parent child node functionality at this time
Parent 1,2,3,4 -> childnode 1
Parent 5,6,7,8 -> childnode 2
Parent node examples have no overlap in domainnames or accountnames in above scenario.
If possible how is IP distribution handled.
We want to give every mail domain its own IP for IP reputation, abuse management.
Is this done and managed from parent or child?
With regards to cPanel ELevate Project is the tool capable of handling parent, child node migration or would it have to be run separately on parent and on child.
The following is a question with regards to thirdparty software in the hopes cPanel support has run into it already with other customers.
With regards to Mailscanner Front-end and Configserver Firewall management is this something that could still be handled from the parent or will integration have to be done from childnode or is it known that it is completely unsupported at this time.
Thank you for your time.
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Hey there! The short answer is "not yet" - according to our docs at cPanel Linked Nodes Guide | cPanel & WHM Documentation "We do not currently support configurations that link more than one parent node to a single child node." ELevate has no concept of this process as that is just for the local operating system itself. In that same guide I linked above, we say this about the mail traffic: In most cases, all IMAP, POP3, and SMTP traffic for distributed cPanel accounts goes to the mail child node. However, if this traffic arrives at the parent node (for example, cached DNS lookups), the parent node will: Create proxy IMAP and POP3 connections to the mail child node. Reroute SMTP mail delivery to the mail child node.
so you'd want your mail processing tools to be on the child node.0 -
Hey there! I believe this section of our documentation will answer both of those questions, with the bold being my addition: Distributed accounts on a linked mail child node In most cases, all IMAP, POP3, and SMTP traffic for distributed cPanel accounts goes to the mail child node. However, if this traffic arrives at the parent node (for example, cached DNS lookups), the parent node will: Create proxy IMAP and POP3 connections to the mail child node. Reroute SMTP mail delivery to the mail child node.
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The configuration changes happen on the parent in cPanel, but the spam processing happens on the child machine. 0 -
SpamAssassin still works as normal, although at this point you are correct that you wouldn't be able to install third-party tools. 0 -
At this point, yes. Due to the relationship between the parent and child and how everything gets handled, and the fact this is still a bit new, customization options are limited or non-existent. 0
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