[MacPorts] #63511: Using SelfUpdate and Upgrade with BIND9: Are LIve Zone Files and Named.conf Preserved?

[MacPorts]

#63511: Using SelfUpdate and Upgrade with BIND9: Are LIve Zone Files and Named.conf
Preserved?
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 Reporter:  Kyosho  |      Owner:  (none)
     Type:  update  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.7.99
 Keywords:          |       Port:
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 My question should be simple enough to answer,

 You have a very nice, easy to use command to update and upgrade for BIND9.
 Having an active DNS server on-site, and then upgrading when macOS version
 changes and a new BIND9 version is required, will upgrading automatically
 preserve my running configuration, or do I have to back up files in
 advance, upgrade, and then copy files back and restart in order to be up
 and running again?

 Thank you - this is  the command you offer for me to use:

 sudo port selfupdate && sudo port upgrade bind9

 Best - Frank

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Ticket URL: <https://trac.macports.org/ticket/63511>
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