Problem with Log-File

[Aki Tuomi]

> On 03/05/2021 06:19 Volf, Ronald (IRV) <sales at irv.at> wrote:
> 
> 
> Hello!
> We want to log error in a File directly : /var/log/IRV_MdM/Dovecot_main.log.
> 
> We got this error: 'Can't open log file /var/log/IRV_MdM/Dovecot_main.log: Permission denied'
> 
> Please have a look at our Problem. Is it a bug or an incorrect config ?
> 
> Our Dir-Structure is: (for testing, we changed all to mod 777)
> 2021-05-03 04:29:32 IRV-20210501-V02-rvh:~ # dir -d /var/ /var/log/ /var/log/IRV_MdM/ /var/log/IRV_MdM/Dovecot_main.log
>  drwxrwxrwx 11 root root 4096 2021-04-30 20:36:51 /var/
>  drwxrwxrwx 21 root root 4096 2021-05-03 02:53:34 /var/log/
>  drwxrwxrwx 4 IRV_MdM IRV_MdMG 4096 2021-05-03 04:28:09 /var/log/IRV_MdM/
>  -rwxrwxrwx 1 IRV_MdM IRV_MdMG 14 2021-05-03 01:36:18 /var/log/IRV_MdM/Dovecot_main.log
>  2021-05-03 04:29:48 IRV-20210501-V02-rvh:~ #
> 
> Version:
> 2021-05-03 04:28:05 IRV-20210501-V02-rvh:~ # dovecot --version
>  2.3.14 (cee3cbc0d)
>  2021-05-03 04:28:12 IRV-20210501-V02-rvh:~ #
> 
> Logs:
> 2021-05-03 04:28:51 IRV-20210501-V02-rvh:~ # doveadm log find
>  Debug: /var/log/IRV_MdM/Dovecot_main.log
>  Info: /var/log/IRV_MdM/Dovecot_main.log
>  Warning: /var/log/IRV_MdM/Dovecot_main.log
>  Error: /var/log/IRV_MdM/Dovecot_main.log
>  Fatal: /var/log/IRV_MdM/Dovecot_main.log
> 
> Config:
>  2021-05-03 04:45:27 IRV-20210501-V02-rvh:~ # dovecot -n
>  # 2.3.14 (cee3cbc0d): /etc/dovecot/dovecot.conf
>  # Pigeonhole version 0.5.14 (1b5c82b2)
> # OS: Linux 5.12.0-1-default x86_64 ext3
>  # Hostname: IRV-20210501-V02-rvh
>  auth_cache_size = 20 M
>  auth_debug = yes
>  auth_debug_passwords = yes
>  auth_verbose = yes
>  auth_verbose_passwords = plain
>  default_internal_user = IRV_MdM
>  default_login_user = IRV_MdM_Login
>  deliver_log_format = msgid=%m: %$ (From=%f, To=%t, Subject=%s, Size=%p/%w, Dsn=%{storage_id})
>  disable_plaintext_auth = no
>  first_valid_uid = 10000
>  last_valid_gid = 49999
>  last_valid_uid = 49999
>  listen = *
>  log_path = /var/log/IRV_MdM/Dovecot_main.log
>  log_timestamp = "%Y-%m-%d %H:%M:%S "
>  login_greeting = Welcome to the INetS - Multi-Device-Mail-Server.
>  mail_access_groups = IRV_MdMG
>  mail_debug = yes
>  mail_location = maildir:/var/spool/IRV_MdM/User/%u/Mail:CONTROL=/var/spool/IRV_MdM/User/%u/Ctrl:INDEX=/var/spool/IRV_MdM/User/%u/Index:LAYOUT=fs
>  mail_temp_dir = /var/spool/IRV_MdM/Tmp
>  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 index ihave duplicate mime foreverypart extracttext
>  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/dovecot-sql.conf.ext
>  driver = sql
>  }
>  plugin {
>  sieve = file:~/sieve;active=~/.dovecot.sieve
>  }
>  pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
>  postmaster_address =Support at IRV.at
> ssl_cert = /Apps_IRV/Web/Cert/IRV_star_irv_at/IRV_STAR_irv_at.Crt.crt
>  ssl_cipher_list = ALL:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW at STRENGTH
>  ssl_key = # hidden, use -P to show it
>  ssl_options = no_compression
>  ssl_prefer_server_ciphers = yes
>  userdb {
>  driver = prefetch
>  }
>  userdb {
>  args = /etc/dovecot/dovecot-sql.conf.ext
>  driver = sql
>  }
>  verbose_proctitle = yes
>  2021-05-03 04:45:42 IRV-20210501-V02-rvh:~ #
> 
> OS:
> 2021-05-03 04:45:42 IRV-20210501-V02-rvh:~ # i_ver
>  Isg-Release: Version = 07.00.22 from 2021-01-22 21:13.
>  Linux-Release: openSUSE Tumbleweed 20210430 Linux 5.12.0-1-default x86_64.
>  2021-05-03 05:13:01 IRV-20210501-V02-rvh:~ #
> Please send the reply to Support at IRV.at.
> 
> Mit freundlichen Grüßen / with best regards
> 
> Ing. Ronald VOLF
> http://www.irv.at/	 IRV Datenverarbeitung GmbH	
> Internet:	 www.irv.at (http://www.irv.at/)	 	
> Mail:	 Sales at IRV.at	 	
> Tel.:	 (+43-2236) 2236 7 *	 	
> Fax:	 (+43-2236) 2191 7 / 30	 	
> Addr.:	 Brown Boveri Strasse 6, Top 18
> 2351 Wr. Neudorf, Austria

Hi!

Not sure which os you are using but perhaps if it's redhat based, you need to ensure correct selinux context on the directory and files? Or you have some other thing preventing you from writing, so you should probably check `dmesg` and `/var/log/audit/audit.log` and such.

Aki