Hello,
as Dovecot 2.4.1 has been published, I started investigation how I need
to modify my existing Dovecot 2.3.x configuration, which worked
flawlessly the last 5 years.
With the help of the doveconf tool I've identified the parameters which
need to be modified and I got rid of the error message at the end.
Nevertheless, not getting any errors displayed, does not automatically
mean, that it has correctly been configured.
Here is the initial auth configuration and hopefully the right 2.4 version:
Dovecot23: disable_plaintext_auth = yes
auth_username_format = %Lu
auth_mechanisms = plain login cram-md5
passdb {
driver = passwd-file
args = username_format=%Lu /path/to/aliases-file
}
passdb {
driver = passwd-file
args = scheme=cram-md5 /path/to/cram-md5-file
}
userdb {
driver = passwd
}
Dovecot24: auth_allow_cleartext = no
auth_username_format = %{user | lower}
auth_mechanisms = plain login cram-md5
passdb aliases-file {
passwd_file_path = /path/to/aliases-file
}
passdb md5-file {
passwd_file_path = /path/to/cram-md5-file
}
userdb passwd-file {
passwd_file_path = /etc/passwd
}
Here are my questions:
- The first passdb configuration (aliases file) initially contained the
"args = username_format=%Lu ..." option. Do I still need to convert this
to a dedicated "auth_username_format = %{user | lower}" line or is this
already covered by the global "auth_username_format" setting?
- The second passdb configuration (cram-md5 file) initially contained
the "args = scheme=cram-md5 ..." option. I couldn't find any replacement
for it. Does this mean the only alternative would be to prefix all
passwords in the password file with "{CRAM-MD5}"?
- For the third userdb configuration (passwd file) I made use of the
"passwd_file_path" parameter. Is this a valid replacement for the
original "driver = passwd" entry or have I forgotten anything?
BTW, I was curious if ChatGPT could do the job faster than me, but I can
say "not yet". It made several errors and had to be corrected one by one
but that might change in the future if more and more people are asking
for support on this topic.
Thanks Juergen
--
Mail: juer...@eisfair.org
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