I have a docker container, and I have installed postfix successfully, but I can not install OpenDKIM successfully.
I tried the command service OpenDKIM status, get this error opendkim is not running
I refered following link to install OpenDKIM
https://www.linuxbabe.com/mail-server/setting-up-dkim-and-spf
*My docker Linux version as follow:
NAME="Ubuntu"
VERSION="20.04.2 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.2 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
*mail log show following error:
xxx x xx:xx:xx 28ed2292bec0 opendkim[8199]: [parent] socket cleanup failed: Address already in use
*opendkim.conf file:
# This is a basic configuration that can easily be adapted to suit a standard
# installation. For more advanced options, see opendkim.conf(5) and/or
# /usr/share/doc/opendkim/examples/opendkim.conf.sample.
# Log to syslog
Syslog yes
# Required to use local socket with MTAs that access the socket as a non-
# privileged user (e.g. Postfix)
UMask 007
# Sign for example.com with key in /etc/dkimkeys/dkim.key using
# selector '2007' (e.g. 2007._domainkey.example.com)
#Domain example.com
#KeyFile /etc/dkimkeys/dkim.key
#Selector 2007
# Commonly-used options; the commented-out versions show the defaults.
#Canonicalization simple
#Mode sv
#SubDomains no
Canonicalization relaxed/simple
Mode sv
SubDomains no
# Socket smtp://localhost
#
# ## Socket socketspec
# ##
# ## Names the socket where this filter should listen for milter connections
# ## from the MTA. Required. Should be in one of these forms:
# ##
# ## inet:port@address to listen on a specific interface
# ## inet:port to listen on all interfaces
# ## local:/path/to/socket to listen on a UNIX domain socket
#
#Socket inet:8892@localhost
#Socket local:/run/opendkim/opendkim.sock
Socket local:/var/spool/postfix/opendkim/opendkim.sock
## PidFile filename
### default (none)
###
### Name of the file where the filter should write its pid before beginning
### normal operations.
#
PidFile /run/opendkim/opendkim.pid
# Always oversign From (sign using actual From and a null From to prevent
# malicious signatures header fields (From and/or others) between the signer
# and the verifier. From is oversigned by default in the Debian pacakge
# because it is often the identity key used by reputation systems and thus
# somewhat security sensitive.
OversignHeaders From
## ResolverConfiguration filename
## default (none)
##
## Specifies a configuration file to be passed to the Unbound library that
## performs DNS queries applying the DNSSEC protocol. See the Unbound
## documentation at http://unbound.net for the expected content of this file.
## The results of using this and the TrustAnchorFile setting at the same
## time are undefined.
## In Debian, /etc/unbound/unbound.conf is shipped as part of the Suggested
## unbound package
# ResolverConfiguration /etc/unbound/unbound.conf
## TrustAnchorFile filename
## default (none)
##
## Specifies a file from which trust anchor data should be read when doing
## DNS queries and applying the DNSSEC protocol. See the Unbound documentation
## at http://unbound.net for the expected format of this file.
TrustAnchorFile /usr/share/dns/root.key
## Userid userid
### default (none)
###
### Change to user "userid" before starting normal operation? May include
### a group ID as well, separated from the userid by a colon.
#
AutoRestart yes
AutoRestartRate 10/1M
Background yes
DNSTimeout 5
SignatureAlgorithm rsa-sha256
#OpenDKIM user
# Remember to add user postfix to group opendkim
UserID opendkim
# Map domains in From addresses to keys used to sign messages
KeyTable refile:/etc/opendkim/key.table
SigningTable refile:/etc/opendkim/signing.table
# Hosts to ignore when verifying signatures
ExternalIgnoreList /etc/opendkim/trusted.hosts
# A set of internal hosts whose mail should be signed
InternalHosts /etc/opendkim/trusted.hosts
#RequiredHeaders yes
*/etc/default/opendkim file
# Command-line options specified here will override the contents of
# /etc/opendkim.conf. See opendkim(8) for a complete list of options.
#DAEMON_OPTS=""
# Change to /var/spool/postfix/run/opendkim to use a Unix socket with
# postfix in a chroot:
#RUNDIR=/var/spool/postfix/run/opendkim
RUNDIR=/run/opendkim
#
# Uncomment to specify an alternate socket
# Note that setting this will override any Socket value in opendkim.conf
# default:
#SOCKET=local:$RUNDIR/opendkim.sock
SOCKET="local:/var/spool/postfix/opendkim/opendkim.sock"
# listen on all interfaces on port 54321:
#SOCKET=inet:54321
# listen on loopback on port 12345:
#SOCKET=inet:12345@localhost
# listen on 192.0.2.1 on port 12345:
#SOCKET=inet:12345@192.0.2.1
USER=opendkim
GROUP=opendkim
PIDFILE=$RUNDIR/$NAME.pid
EXTRAAFTER=
