[tor-bugs] #32803 [Internal Services/Tor Sysadmin Team]: migrate eugeni to the gnt-fsn cluster

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#32803: migrate eugeni to the gnt-fsn cluster
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     Reporter:  anarcat                              |      Owner:  tpa
         Type:  task                                 |     Status:  new
     Priority:  High                                 |  Milestone:
    Component:  Internal Services/Tor Sysadmin Team  |    Version:
     Severity:  Major                                |   Keywords:
Actual Points:                                       |  Parent ID:  #32802
       Points:                                       |   Reviewer:
      Sponsor:                                       |
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 This is a big decision, but we might want to consider migrating eugeni out
 of kvm4 in the short term.

 This server is highly critical: it handles incoming mail and mailing
 lists, and any downtime on that server is felt quickly by everyone in the
 Tor project.

 Even though the gnt-fsn server is over-provisionned, it is technically
 more reliable than a single machine like kvm4 because it has redundant
 nodes. We might be able to afford the extra space to host eugeni right
 now.

 The risk, of course, is that eugeni is an old server that is very
 important infrastructure. Migrating it might be tricky. For example its IP
 address might be hardcoded in a bunch of places, and moving it to the gnt-
 fsn will mean changing that IP address.

 Such an IP change might also affect its reputation with other mail
 servers, making mail delivery even harder than it already is.

 But we have to cross that bridge anyways with the new SMTP delivery
 service in #30608.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32803>
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