troubleshooting replication setup - 2.4.17

Working on this upgrade to a new server - 2.4 to 3.4.2

on the old server, running 2.4.17 (I know ...)

Using this howto : 
https://www.cyrusimap.org/2.5/imap/admin/sop/replication.html

(2.5, I know ... but I can't find doco for how to do this on 2.4)

I've added to /etc/services :

csync           9905/tcp                # Cyrus csync temp CB

9905 is available and doesn't clash with anything I can find :

bash-4.3# netstat -an | grep 9905
bash-4.3#


in imapd.conf :

# sync server, CB 20210916
sync_authname: XXXXX
sync_password: XxXXxxX
sync_port: 9905

in cyrus.conf :

SERVICES {
   # add or remove based on preferences
   imap          cmd="imapd" listen="localhost:imap" prefork=0
   imaps         cmd="imapd -s" listen="imaps" prefork=0
   pop3          cmd="pop3d" listen="pop3" prefork=0
   pop3s         cmd="pop3d -s" listen="pop3s" prefork=0
   #sieve                cmd="timsieved" listen="sieve" prefork=0


   lmtpunix      cmd="lmtpd" listen="/var/imap/socket/lmtp" prefork=0

   # for syncing to rollcage13 for migration CB 20210916
   syncserver    cmd="/usr/pkg/cyrus/bin/sync_server" listen="csync"
}

Error logged is :

Sep 16 18:42:52  master[5508]: servname not supported for ai_socktype, 
disabling syncserver

Um?

Am I totally flogging a dead horse or might this work?

Carl



------------------------------------------
Cyrus: Info
Permalink: https://cyrus.topicbox.com/groups/info/T50c2c1b30d20802c-Mc131185206498b3e35088e7f
Delivery options: https://cyrus.topicbox.com/groups/info/subscription