March 2010 - dovecot - dovecot.org

[Dovecot] FPlugin imap_acl not found from directory /usr/lib/dovecot/modules/imap
by foram goram 01 Mar '10

01 Mar '10

Hi, I am receiving this error when I put mail_plugins = acl imap_acl, even though the module is there. /etc/init.d/dovecot restart Restarting mail server: dovecotFPlugin imap_acl not found from directory /usr/lib/dovecot/modules/imap Error: imap dump-capability process returned 89 With mail_plugins = acl, it starts up correctly. dovecot -n # /etc/dovecot/dovecot.conf base_dir: /var/run/dovecot/ log_timestamp: %Y-%m-%d %H:%M:%S protocols: imaps pop3s listen: 72.55.178.121 ssl_ca_file: /etc/ssl/certs/STAR.openfares.com_issuing_chain.crt ssl_cert_file: /etc/ssl/certs/STAR.openfares.com.pem ssl_key_file: /etc/ssl/private/STAR.openfares.com.pem disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login login_process_size: 128 login_processes_count: 6 login_max_processes_count: 256 login_max_connections: 512 mail_privileged_group: mail mail_location: maildir:/home/vmail/%d/%n/Maildir mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugins(default): acl mail_plugins(imap): acl mail_plugins(pop3): mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv auth default: mechanisms: plain login passdb: driver: pam passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: passwd userdb: driver: static args: uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: vmail lb1:/etc/dovecot# dovecot -n | grep acl mail_plugins(default): acl mail_plugins(imap): acl ls -l /usr/lib/dovecot/modules/imap/ total 40 lrwxrwxrwx 1 root root 22 2009-12-15 09:37 lib01_acl_plugin.so -> ../lib01_acl_plugin.so lrwxrwxrwx 1 root root 26 2009-12-15 09:37 lib01_convert_plugin.so -> ../lib01_convert_plugin.so lrwxrwxrwx 1 root root 24 2009-12-15 09:37 lib01_quota_plugin.so -> ../lib01_quota_plugin.so -rw-r--r-- 1 root root 6622 2009-09-23 09:10 lib01_zlib_plugin.a -rw-r--r-- 1 root root 888 2009-09-23 09:08 lib01_zlib_plugin.la -rw-r--r-- 1 root root 7548 2009-09-23 09:10 lib01_zlib_plugin.so -rw-r--r-- 1 root root 4994 2009-09-23 09:10 lib02_imap_quota_plugin.a -rw-r--r-- 1 root root 926 2009-09-23 09:07 lib02_imap_quota_plugin.la -rw-r--r-- 1 root root 7284 2009-09-23 09:10 lib02_imap_quota_plugin.so lrwxrwxrwx 1 root root 24 2009-12-15 09:37 lib02_trash_plugin.so -> ../lib02_trash_plugin.so ls -l /usr/lib/dovecot/modules/ total 204 drwxr-xr-x 2 root root 4096 2009-12-15 09:37 imap drwxr-xr-x 2 root root 4096 2009-12-15 09:37 lda -rw-r--r-- 1 root root 31462 2009-09-23 09:10 lib01_acl_plugin.a -rw-r--r-- 1 root root 872 2009-09-23 09:07 lib01_acl_plugin.la -rw-r--r-- 1 root root 23932 2009-09-23 09:10 lib01_acl_plugin.so -rw-r--r-- 1 root root 6634 2009-09-23 09:10 lib01_convert_plugin.a -rw-r--r-- 1 root root 900 2009-09-23 09:07 lib01_convert_plugin.la -rw-r--r-- 1 root root 8108 2009-09-23 09:10 lib01_convert_plugin.so -rw-r--r-- 1 root root 45902 2009-09-23 09:10 lib01_quota_plugin.a -rw-r--r-- 1 root root 886 2009-09-23 09:07 lib01_quota_plugin.la -rw-r--r-- 1 root root 35108 2009-09-23 09:10 lib01_quota_plugin.so -rw-r--r-- 1 root root 6322 2009-09-23 09:10 lib02_trash_plugin.a -rw-r--r-- 1 root root 886 2009-09-23 09:07 lib02_trash_plugin.la -rw-r--r-- 1 root root 8360 2009-09-23 09:10 lib02_trash_plugin.so drwxr-xr-x 2 root root 4096 2009-12-15 09:37 pop3 dovecot --version 1.0.rc15 Thanks __________________________________________________________________ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now http://ca.toolbar.yahoo.com.

2 1

[Dovecot] segfault - (imap|pop3)-login during nessus scan
by Todd Rinaldo 01 Mar '10

01 Mar '10

We've been struggling with a problem for the past couple of days which to this point I've only gotten to be able to boil down to this: 1. Install nessus home edition (less pluggins I assume) 2. run all scans (sequentially or in parallel, doesn't seem to matter) 3. about 3 minutes in /var/log/messages will show segfaults on imap and/or pop3 imap-login[22185]: segfault at 000000000000000c rip 0000003c7de610a2 rsp 00007fffa2342068 error 4 or sometimes... pop3-login[24451]: segfault at 000000000000000c rip 0000003c7de610a2 rsp 00007fff07116968 error 4 I'm having a really hard time getting a core dump and I'm having a really hard time narrowing down the list of nessus tests which cause this. So far, I have repeated this failure in 1.1.19 and 1.1.20 Additionally we've seen something similar on 1.2 and reverted back to 1.1 a year ago. At the time we could not re-produce a test case and finally gave up. Has anyone seen something along these lines? Can anyone recommend how I could narrow this down further so we can find the problem? Thanks, Todd

2 7

[Dovecot] Read-only imap mailbox and disable pop access to it
by foram goram 01 Mar '10

01 Mar '10

Hi I want to create a mailbox that no one would be able to delete mails from and disable access to it through pop. I have come up with using ACLs to allow read-only access to users. Is that right approach? Could someone tell me how I can achieve the second objective of disabling pop access to this mailbox only. Thanks Foram Goram __________________________________________________________________ Be smarter than spam. See how smart SpamGuard is at giving junk email the boot with the All-new Yahoo! Mail. Click on Options in Mail and switch to New Mail today or register for free at http://mail.yahoo.ca

1 0