Hi,

Maybe I've been staring at config files and man pages too long, but the doc page for Dsync is a little confusing and I don't how to solve my problem. I've probably missed something simple and stupid, but as I said, I've been staring at this problem too long and need a second pair of eyes on it !

Per doveconf below the user/owner for auth db is a user with shell /bin/false. Root SSH login is also disabled on the target machine, so I need to use a script user to do the sync.

I installed dovecot on the target host and config'd it as per the second doveconf below

But all I ever get are errors such as : su -c "dsync -u test@somewhere.example.com backup its-virtmail@somewhere.example.com" its_scripts dsync(its_scripts): Fatal: setuid(1001(its-virtmail) from userdb lookup) failed with euid=1002(its_scripts): Operation not permitted (This binary should probably be called with process user set to 1001(its-virtmail) instead of 1002(its_scripts)) root@ukc-vm02-mx01:/etc/dovecot/conf.d# dsync(its_scripts): Error: userdb lookup: connect(/var/run/dovecot/auth-userdb) failed: Permission denied (euid=1002(its_scripts) egid=1002(its_scripts) missing +r perm: /var/run/dovecot/auth-userdb, dir owned by 0:0 mode=0755)

Even if I temporarily give /bin/sh and an ssh key to the dovecot user, I still can't get it to work :

ssh its-virtmail@somewhere.example.com dsync -u test@example.com dsync(its-virtmail): Error: user test@somewhere.example.com: Initialization failed: mail_location not set and autodetection failed: Mail storage autodetection failed with home=/srv/mail/example.com/test dsync(its-virtmail): Fatal: User init failed dsync-local(test@somewhere.example.com): Error: read() from worker server failed: EOF

# SOURCE HOST # 2.0.19: /etc/dovecot/dovecot.conf # OS: Linux 3.5.0-37-generic x86_64 Ubuntu 12.04.2 LTS auth_verbose = yes auth_verbose_passwords = sha1 mail_location = maildir:~/Maildir managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave passdb { args = scheme=CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } plugin { fts = solr fts_solr = url=http://localhost:8080/solr/ sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap lmtp sieve service auth { unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = its-virtmail mode = 0660 user = its-virtmail } } service imap-login { process_min_avail = 3 } service lmtp { process_min_avail = 5 unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } user = its-virtmail } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieves { port = 5190 ssl = yes } process_min_avail = 3 } ssl = required ssl_cert = was automatically rejected:%n%r } protocol lmtp { mail_plugins = sieve postmaster_address = postmaster@example.com }

#DEST HOST # 2.0.19: /etc/dovecot/dovecot.conf # OS: Linux 3.5.0-37-generic x86_64 Ubuntu 12.04.2 LTS auth_verbose = yes auth_verbose_passwords = sha1 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave passdb { args = scheme=CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = " imap lmtp sieve" service auth { unix_listener auth-userdb { group = its-virtmail user = its-virtmail } } service lmtp { process_min_avail = 3 user = its-virtmail } ssl_cert =