Is there a portable way to share postmapped file across machines?
I have one postfix server running OpenBSD and another running CentOS,
I want the CentOS server to provide secondary services for for the BSD
box. The OpenBSD box uses virtual delivery:
/etc/postfix/main.cf:(BSD box)
...
# What are the domains that we handle mail for?
virtual_alias_domains = hash:/etc/postfix/virtual_domains
virtual_alias_maps = hash:/etc/postfix/virtual
The two plain text versions of those files are copied over to the
CentOS server and renamed so they act as a relay reference:
/etc/postfix.main.cf (CentOS box)
...
# Relay for ourselves and other hosts
relay_domains = $mydestination, hash:/etc/postfix/relay_domains
relay_recipient_maps = hash:/etc/postfix/relay_recipients
My setup currently copies the plain text versions and creates a flag
file. A cron job then looks for the flag file and postmaps the files
if needed.
I'd like to remove this step and just copy the .db file over but when
I copy the file to the CentOS box I see this error:
Nov 12 09:01:11 dn postfix/smtpd[2346]: fatal: open database /etc/
postfix/mentok/relay_domains.db: Invalid argument
I get the same error if I try to read the contents of the .db file
using postmap directly. Is there going to be some architectural
difference between the two systems? Is there a more cross-platform
file format I could use for the databases?
G.
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