我运行的是 Ubuntu 16.04，其中安装了用于 imap 的 Dovecot 软件包和用于其 Web 界面的 Roundcube。一切都运行正常，只是我无法让 Dovecot 停止将 imap 登录和 imap 注销记录到 syslog。
/etc/rsyslog.d/50-defaults.conf：
# Default rules for rsyslog.
#
# For more information see rsyslog.conf(5) and /etc/rsyslog.conf
#
# First some standard log files. Log by facility.
#
auth,authpriv.* /var/log/auth.log
*.*;auth,authpriv.none -/var/log/syslog
# cron.* /var/log/cron.log
#daemon.* -/var/log/daemon.log
kern.* -/var/log/kern.log
#lpr.* -/var/log/lpr.log
mail.* -/var/log/mail.log
& ~
#user.* -/var/log/user.log
#
# Logging for the mail system. Split it up so that
# it is easy to write scripts to parse these files.
#
mail.info -/var/log/mail.info
mail.warn -/var/log/mail.warn
mail.err -/var/log/mail.err
mail.none /var/log/syslog
#
# Logging for INN news system.
#
news.crit /var/log/news/news.crit
news.err /var/log/news/news.err
news.notice -/var/log/news/news.notice
#
# Some "catch-all" log files.
#
#*.=debug;\
# auth,authpriv.none;\
# news.none;mail.none -/var/log/debug
#*.=info;*.=notice;*.=warn;\
# auth,authpriv.none;\
# cron,daemon.none;\
# mail,news.none -/var/log/messages
#
# Emergencies are sent to everybody logged in.
#
*.emerg :omusrmsg:*
#
# I like to have messages displayed on the console, but only on a virtual
# console I usually leave idle.
#
#daemon,mail.*;\
# news.=crit;news.=err;news.=notice;\
# *.=debug;*.=info;\
# *.=notice;*.=warn /dev/tty8
# The named pipe /dev/xconsole is for the `xconsole' utility. To use it,
# you must invoke `xconsole' with the `-file' option:
#
# $ xconsole -file /dev/xconsole [...]
#
# NOTE: adjust the list below, or you'll go crazy if you have a reasonably
# busy site..
#
# daemon.*;mail.*;\
daemon.*;
news.err;\
*.=debug;*.=info;\
*.=notice;*.=warn |/dev/xconsole
# Don't log Dovecot logins
:msg, contains, "imap-login" ~
/etc/rsyslog.conf：
# /etc/rsyslog.conf Configuration file for rsyslog.
#
# For more information see
# /usr/share/doc/rsyslog-doc/html/rsyslog_conf.html
#
# Default logging rules can be found in /etc/rsyslog.d/50-default.conf
#################
#### MODULES ####
#################
module(load="imuxsock") # provides support for local system logging
module(load="imklog") # provides kernel logging support
#module(load="immark") # provides --MARK-- message capability
# provides UDP syslog reception
#module(load="imudp")
#input(type="imudp" port="514")
# provides TCP syslog reception
#module(load="imtcp")
#input(type="imtcp" port="514")
# Enable non-kernel facility klog messages
$KLogPermitNonKernelFacility on
###########################
#### GLOBAL DIRECTIVES ####
###########################
#
# Use traditional timestamp format.
# To enable high precision timestamps, comment out the following line.
#
$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat
# Filter duplicated messages
$RepeatedMsgReduction on
#
# Set the default permissions for all log files.
#
$FileOwner syslog
$FileGroup adm
$FileCreateMode 0640
$DirCreateMode 0755
$Umask 0022
$PrivDropToUser syslog
$PrivDropToGroup syslog
#
# Where to place spool and state files
#
$WorkDirectory /var/spool/rsyslog
#
# Include all config files in /etc/rsyslog.d/
#
$IncludeConfig /etc/rsyslog.d/*.conf
doveconf -n 的输出：
# 2.2.22 (fe789d2): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.13 (7b14904)
# OS: Linux 4.4.0-112-generic x86_64 Ubuntu 16.04.3 LTS ext4
auth_mechanisms = plain login
log_path =
mail_location = maildir:/var/mail/vmail/%d/%n
mail_plugins = " quota"
mail_privileged_group = vmail
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 {
auto = subscribe
special_use = \Drafts
}
mailbox Junk {
auto = subscribe
special_use = \Junk
}
mailbox Sent {
auto = subscribe
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
auto = subscribe
special_use = \Trash
}
prefix =
}
passdb {
args = /etc/dovecot/dovecot-sql.conf.ext
driver = sql
}
plugin {
quota = maildir:User quota
quota_grace = 10%%
quota_rule = *:storage=5G
quota_rule2 = Trash:storage=+100M
quota_status_overquota = 552 5.2.2 Mailbox is full
sieve = ~/.dovecot.sieve
sieve_after = /etc/dovecot/sieve/spamfilter.sieve
sieve_dir = ~/sieve
}
postmaster_address = [email protected]
protocols = " imap lmtp sieve"
service auth {
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0666
user = postfix
}
}
service imap-login {
inet_listener imaps {
port = 993
ssl = yes
}
}
service lmtp {
unix_listener /var/spool/postfix/private/dovecot-lmtp {
group = postfix
mode = 0600
user = postfix
}
}
ssl = required
ssl_cert = </etc/letsencrypt/live/my.domain.name.here/fullchain.pem
ssl_key = </etc/letsencrypt/live/my.domain.name.here/privkey.pem
userdb {
args = /etc/dovecot/dovecot-sql.conf.ext
driver = sql
}
protocol lmtp {
mail_plugins = " quota sieve"
}
protocol lda {
info_log_path =
log_path =
mail_plugins = " quota sieve"
postmaster_address = [my own e-mail address]
syslog_facility = mail
}
protocol imap {
info_log_path =
log_path =
mail_plugins = " quota imap_quota"
syslog_facility = mail
}
# systemctl restart dovecot rsyslog没有帮助。
在 syslog 和 mail.log 中都会记录的内容以及我希望仅记录在 mail.log 中的内容：
Feb 22 10:00:31 n40l dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=::1, lip=::1, mpid=16286, secured, session=<eg2dRsllCusAAAAAAAAAAAAAAAAAAAAB>
Feb 22 10:00:31 n40l dovecot: imap([email protected]): Logged out in=91 out=928
附注：cron 仍然坚持记录到 syslog，也无法停止。不确定是否有相同的原因。
问题：如何让 Dovecot 仅记录到邮件日志设备而不记录到系统日志？
答案1
通过以下方式创建完整配置：
doveconf -a > fullconfig.txt
在其中查找具有作为目的地的隐式日志记录选项= syslog。
将所有不需要的更改为= /dev/null。
答案2
老问题但答案可能仍然对某些人有帮助。
要停止记录到 /var/log/syslog，您应该将 mail.none（和 cron.none）添加到 rsyslog 行，使其变为：
*.*;auth;authpriv.none;mail.none;cron.none -/var/log/syslog
看https://superuser.com/questions/1060190/what-does-the-none-suffix-mean有关“无”后缀的详细信息
答案3
/var/log/mail.log强制调试和信息消息仅登录，syslog不再登录
# /etc/dovecot/conf.d/10-logging.conf
debug_log_path = /var/log/mail.log
info_log_path = /var/log/mail.log