Linux
Dovecot 沒有監聽任何埠
我正在嘗試設置郵件伺服器，但 Dovecot 沒有監聽任何埠。我嘗試過故障排除，但不幸的是遇到了障礙。任何幫助/建議將不勝感激謝謝。
/etc/postfix/main.cf
# See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key #smtpd_use_tls=yes #smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache #smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_use_tls=yes smtpd_tls_auth_only = yes smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination鴿舍-n
# 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.8 ext4 auth_mechanisms = plain login mail_location = maildir:/var/mail/vhosts/%d/%n mail_privileged_group = mail 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 } protocols = imap lmtp service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = dovecot } service imap-login { inet_listener imap { port = 0 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } ssl = no userdb { args = uid=vmail gid=vmail home=/var/mail/vhosts/%d/%n driver = static }服務鴿舍狀態
● dovecot.service - Dovecot IMAP/POP3 email server Loaded: loaded (/lib/systemd/system/dovecot.service; enabled) Active: active (running) since Fri 2017-06-23 21:33:08 CEST; 13min ago Main PID: 7688 (dovecot) CGroup: /system.slice/dovecot.service ├─7688 /usr/sbin/dovecot -F ├─7690 dovecot/anvil ├─7691 dovecot/log └─7693 dovecot/config Jun 23 21:33:08 spmac1 systemd[1]: Starting Dovecot IMAP/POP3 email server... Jun 23 21:33:08 spmac1 systemd[1]: Started Dovecot IMAP/POP3 email server. Jun 23 21:33:08 spmac1 dovecot[7688]: master: Dovecot v2.2.13 starting up for imap, lmtp (core dumps disabled)netstat -tupln
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 7557/master tcp 0 0 0.0.0.0:55171 0.0.0.0:* LISTEN 463/rpc.statd tcp 0 0 0.0.0.0:xxxx 0.0.0.0:* LISTEN 1274/sshd tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 964/mysqld tcp 0 0 0.0.0.0:587 0.0.0.0:* LISTEN 7557/master tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 454/rpcbind tcp6 0 0 :::25 :::* LISTEN 7557/master tcp6 0 0 :::52219 :::* LISTEN 463/rpc.statd tcp6 0 0 :::50122 :::* LISTEN 1274/sshd tcp6 0 0 :::587 :::* LISTEN 7557/master tcp6 0 0 :::111 :::* LISTEN 454/rpcbind tcp6 0 0 :::80 :::* LISTEN 643/apache2 udp 0 0 0.0.0.0:629 0.0.0.0:* 454/rpcbind udp 0 0 127.0.0.1:639 0.0.0.0:* 463/rpc.statd udp 0 0 0.0.0.0:52688 0.0.0.0:* 463/rpc.statd udp 0 0 0.0.0.0:8217 0.0.0.0:* 391/dhclient udp 0 0 0.0.0.0:68 0.0.0.0:* 391/dhclient udp 0 0 0.0.0.0:111 0.0.0.0:* 454/rpcbind udp6 0 0 :::629 :::* 454/rpcbind udp6 0 0 :::25374 :::* 391/dhclient udp6 0 0 :::34693 :::* 463/rpc.statd udp6 0 0 :::111 :::* 454/rpcbind尾 /var/log/mail.log
Jun 23 21:20:03 spmac1 dovecot: lmtp(3589): Connect from local Jun 23 21:20:03 spmac1 dovecot: lmtp(3589): Disconnect from local: Successful quit Jun 23 21:20:03 spmac1 postfix/qmgr[1264]: 8518441BFC: removed Jun 23 21:32:43 spmac1 postfix/master[1259]: terminating on signal 15 Jun 23 21:32:43 spmac1 postfix/master[7557]: daemon started -- version 2.11.3, configuration /etc/postfix Jun 23 21:33:08 spmac1 dovecot: master: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill) Jun 23 21:33:08 spmac1 dovecot: anvil: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill) Jun 23 21:33:08 spmac1 dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill) Jun 23 21:33:08 spmac1 dovecot: master: Dovecot v2.2.13 starting up for imap, lmtp (core dumps disabled)正如您在 netstat 的輸出中看到的那樣，找不到 Dovecot。埠 993 或 143 均未打開。我也嘗試過遠端登錄到這些埠，並且可以確認它們實際上已關閉。
對於可能有類似問題的其他人，此特定配置中的關閉埠問題是由以下原因引起的：
service imap-login { inet_listener imap { port = 0 }必須指定埠號（IMAP 為 143）。或者，應該註釋掉“port = 0”行，這將允許 dovecot 回退並使用預設埠值。
此配置的另一個問題是，ssl 被設置為“no”，因為在 postfix 配置中使用了蛇油證書，所以它應該被設置為“required”。因此，這些也應該在 dovecot 配置中使用。
ssl = required ssl_cert = </etc/ssl/certs/ssl-cert-snakeoil.pem ssl_key = </etc/ssl/private/ssl-cert-snakeoil.key