ACL group-override question
Trying to get ACLs working, very basic setup:
Virtual users are put into different acl_group via passdb.
u:{PLAIN}B::::::userdb_acl_groups=g
The global acl file restricts what they can do.
- group-override=g
- group=g lr
Shouldn't this mean, that the group rights override the user rights?
The effect that I see though is, that the user "u" then may not do anything, not even lookup and read.
The wiki text is not fully clear to me: It tells about disabling access fully (probably by specifying a non-existent group?). But this can only be one way to use group_override…
-- peter
Trying to get ACLs working, very basic setup:
Virtual users are put into different acl_group via passdb.
u:{PLAIN}B::::::userdb_acl_groups=g
The global acl file restricts what they can do.
- group-override=g
- group=g lr
Shouldn't this mean, that the group rights override the user rights?
The effect that I see though is, that the user "u" then may not do anything, not even lookup and read.
Further to this experiment, I made the ACLs to not use any group settings at all, only trying to lock down the server for anybody, like that:
root@xxx:/etc/dovecot# cat dovecot-acl
- user=archiv lr
- owner lr
- authenticated lr
- anyone lr
Yet, I still can delete messages from anywhere - What am I missing?
Below system setup info (dovecot from bigmichi1 ppa):
root@xxx:/etc/dovecot# doveconf -n
2.2.13 (6bb26098a45c): /etc/dovecot/dovecot.conf
OS: Linux 3.2.0-64-generic x86_64 Ubuntu 12.04.4 LTS
mail_debug = yes mail_location = maildir:~/Maildir mail_log_prefix = "%s(%{auth_user}): " mail_plugins = " acl fts fts_solr mail_log notify" namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/passwd driver = passwd-file } plugin { acl = vfile:/etc/dovecot/dovecot-acl fts = solr fts_autoindex = yes fts_solr = url=http://localhost:8983/solr/ mail_log_events = save copy delete undelete expunge mailbox_create mailbox_rename mailbox_delete mail_log_fields = uid box msgid from subject } protocols = " imap" ssl_cert = </etc/ssl/certs/ssl-cert-snakeoil.pem ssl_key = </etc/ssl/private/ssl-cert-snakeoil.key userdb { args = uid=archiv gid=archiv home=/home/archiv user=archiv driver = static }
The virtual users all act as the system user, their names are just icing for auditing.
-- peter
Previous posts below, here why I guess this one fails:
http://hg.dovecot.org/dovecot-2.2/file/c55c660d6e9d/src/plugins/acl/acl-api....
It says: …a user can't match multiple usernames…
In my setup this is not true: there is only one user, but she goes by several names. (Like in /etc/passwd several users can have the same ID.)
I do not understand the source, but I guess the acl is attached to the "user" and therefore I am out of luck in my adventure: no way short of having a "userdb_acl_user" parameter in passdb.
Kind regards
Peter
Am 2014-06-17 22:59, schrieb Peter Chiochetti:
Trying to get ACLs working, very basic setup:
Virtual users are put into different acl_group via passdb.
u:{PLAIN}B::::::userdb_acl_groups=g
The global acl file restricts what they can do.
- group-override=g
- group=g lr
Shouldn't this mean, that the group rights override the user rights?
The effect that I see though is, that the user "u" then may not do anything, not even lookup and read.
Further to this experiment, I made the ACLs to not use any group settings at all, only trying to lock down the server for anybody, like that:
root@xxx:/etc/dovecot# cat dovecot-acl
- user=archiv lr
- owner lr
- authenticated lr
- anyone lr
Yet, I still can delete messages from anywhere - What am I missing?
Below system setup info (dovecot from bigmichi1 ppa):
root@xxx:/etc/dovecot# doveconf -n
2.2.13 (6bb26098a45c): /etc/dovecot/dovecot.conf
OS: Linux 3.2.0-64-generic x86_64 Ubuntu 12.04.4 LTS
mail_debug = yes mail_location = maildir:~/Maildir mail_log_prefix = "%s(%{auth_user}): " mail_plugins = " acl fts fts_solr mail_log notify" namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/passwd driver = passwd-file } plugin { acl = vfile:/etc/dovecot/dovecot-acl fts = solr fts_autoindex = yes fts_solr = url=http://localhost:8983/solr/ mail_log_events = save copy delete undelete expunge mailbox_create mailbox_rename mailbox_delete mail_log_fields = uid box msgid from subject } protocols = " imap" ssl_cert = </etc/ssl/certs/ssl-cert-snakeoil.pem ssl_key = </etc/ssl/private/ssl-cert-snakeoil.key userdb { args = uid=archiv gid=archiv home=/home/archiv user=archiv driver = static }
The virtual users all act as the system user, their names are just icing for auditing.
participants (1)
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Peter Chiochetti