[postfix-jp: 4349] SMTP oer SSL/TLSができない。

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[postfix-jp: 4349] SMTP oer SSL/TLSができない。

渡辺

渡辺です。

localhostやリモートホストからSMTPはできるのですが、
SMTP over SSL/TLSができません。

何が悪いのか分からないのですが、設定などを書きます。
どなたかお気づきの点などご教授いただけませんか?

よろしくお願いします。

OS
---------------------------------------------------------------------------
CentOS Linux release 7.2.1511 (Core)

Postfix
---------------------------------------------------------------------------
Version     : 2.10.1
Release     : 6.el7

Dovecot
---------------------------------------------------------------------------
Version     : 2.2.10
Release     : 5.el7

Openssl
---------------------------------------------------------------------------
Version     : 1.0.1e
Release     : 51.el7_2.4


postconf -n
---------------------------------------------------------------------------
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
broken_sasl_auth_clients = yes
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
debug_peer_level = 2
debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin ddd $daemon_directory/$process_name $process_id & sleep 5
home_mailbox = Maildir/
html_directory = no
inet_interfaces = all
inet_protocols = ipv4
mail_owner = postfix
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
mua_client_restrictions = permit_sasl_authenticated,reject
mua_helo_restrictions = permit_sasl_authenticated,reject
mua_sender_restrictions = permit_sasl_authenticated,reject
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
mydomain = yotuba-hd.jp
myhostname = mail.yotuba-hd.jp
mynetworks = 127.0.0.0/8
myorigin = $mydomain
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/postfix-2.10.1/README_FILES
relay_domains = $mydestination
relayhost =
sample_directory = /usr/share/doc/postfix-2.10.1/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtpd_banner = $myhostname Mail System
smtpd_client_restrictions = permit_mynetworks,reject_unknown_client_hostname,permit
smtpd_etrn_restrictions = permit_mynetworks,reject
smtpd_helo_required = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = yes
smtpd_sasl_path = private/auth
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_tls_cert_file = /etc/pki/dovecot/certs/dovecot.pem
smtpd_tls_key_file = /etc/pki/dovecot/private/dovecot.pem
smtpd_tls_loglevel = 1
smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
smtpd_tls_session_cache_database = btree:/var/lib/postfix/smtpd_scache
smtpd_tls_session_cache_timeout = 3600s
smtpd_use_tls = yes
strict_rfc821_envelopes = yes
unknown_local_recipient_reject_code = 550


master.cf
---------------------------------------------------------------------------
smtp      inet  n       -       n       -       -       smtpd
#smtp      inet  n       -       n       -       1 postscreen
#smtpd     pass  -       -       n       -       -       smtpd
#dnsblog   unix  -       -       n       -       0       dnsblog
#tlsproxy  unix  -       -       n       -       0       tlsproxy
submission inet n       -       n       -       -       smtpd
   -o syslog_name=postfix/submission
   -o smtpd_tls_security_level=encrypt
   -o smtpd_sasl_auth_enable=yes
   -o smtpd_reject_unlisted_recipient=no
   -o smtpd_client_restrictions=$mua_client_restrictions
   -o smtpd_helo_restrictions=$mua_helo_restrictions
   -o smtpd_sender_restrictions=$mua_sender_restrictions
   -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
smtps     inet  n       -       n       -       -       smtpd
   -o syslog_name=postfix/smtps
   -o smtpd_tls_wrappermode=yes
   -o smtpd_sasl_auth_enable=yes
   -o smtpd_reject_unlisted_recipient=no
   -o smtpd_client_restrictions=$mua_client_restrictions
   -o smtpd_helo_restrictions=$mua_helo_restrictions
   -o smtpd_sender_restrictions=$mua_sender_restrictions
   -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING



POP3 over SSL/TLS 995をopensslコマンドで確認するとうまくいきます。

openssl s_client -connect localhost:995
---------------------------------------------------------------------------
CONNECTED(00000003)
depth=0 C = JP, (以下省略)
verify error:num=18:self signed certificate
verify return:1
depth=0 C = JP, (以下省略)
verify return:1
---
Certificate chain
  0 s:/C=JP/(以下省略)
    i:/C=JP/(以下省略)
---
Server certificate
-----BEGIN CERTIFICATE-----
MIICyTCCAjKgAwIBAgIJAMWIIUhI1TJcMA0GCSqGSIb3DQEBBQUAMIGaMQswCQYD
(省略します。)
UKoaxaP7E0i3h27dDqzF3nFUKAxZne3bEbDSijkOLyNiWlhjw+iQYmvVJgwQ
-----END CERTIFICATE-----
subject=/C=JP/(以下省略)
issuer=/C=JP/(以下省略)
---
No client certificate CA names sent
Server Temp Key: ECDH, secp384r1, 384 bits
---
SSL handshake has read 1280 bytes and written 405 bytes
---
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-SHA384
Server public key is 1024 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
SSL-Session:
     Protocol  : TLSv1.2
     Cipher    : ECDHE-RSA-AES256-GCM-SHA384
     Session-ID: 3789EA55C54C91AD4CFCFB08F935E9E1F4DEEB6D4CBDC1AD6A3B3679AE020C5A
     Session-ID-ctx:
     Master-Key: E583E7932E7F6974402D67DD336467E863A2A7A4146E38C763C6DA9971737D6585871604459186FF1D8B31B141532D08
     Key-Arg   : None
     Krb5 Principal: None
     PSK identity: None
     PSK identity hint: None
     TLS session ticket lifetime hint: 300 (seconds)
     TLS session ticket:
     0000 - 53 8c 09 60 ce 13 11 73-0d 9b 9d 2d 15 67 e8 06 S..`...s...-.g..
  (省略します。)

     Start Time: 1459117361
     Timeout   : 300 (sec)
     Verify return code: 18 (self signed certificate)
---
+OK Dovecot ready.


で、メールの受信、一覧ができます。


ところがsmtp over ssl/tlsで接続しようとすると
次のような反応が返ってきてopensslコマンドが終わってしまいます。
openssl s_client -connect localhost:465
---------------------------------------------------------------------------
CONNECTED(00000003)
write:errno=104
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 0 bytes and written 247 bytes
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE


systemctl status postfixで次のような警告が出て、permissionが足らないと言ってるようなのですが、
---------------------------------------------------------------------------
warning: cannot get RSA certificate from file /etc/pki/dovecot/certs/dovecot.pem: disabling TLS support
warning: TLS library problem: 30954:error:0200100D:system library:fopen:Permission denied:bss_file.c:398:fopen('/etc/pki/dovecot/certs/dovecot.pem','r'):
warning: TLS library problem: 30954:error:20074002:BIO routines:FILE_CTRL:system lib:bss_file.c:400:
warning: TLS library problem: 30954:error:140DC002:SSL routines:SSL_CTX_use_certificate_chain_file:system lib:ssl_rsa.c:722:
connect from localhost[127.0.0.1]
warning: Wrapper-mode request dropped from localhost[127.0.0.1] for service smtps. TLS context initialization failed. For details see earlier warnings in your logs.
disconnect from localhost[127.0.0.1]


このファイルは777にしてあります。(777はいけないのかも知れないですが。)
ls -la /etc/pki/dovecot/certs/dovecot.pem
---------------------------------------------------------------------------
-rwxrwxrwx. 1 root root 1025 Mar 28 07:12 /etc/pki/dovecot/certs/dovecot.pem

一応こっちも
ls -la /etc/pki/dovecot/private/dovecot.pem
---------------------------------------------------------------------------
-rwxrwxrwx. 1 root root 916 Mar 28 07:12 /etc/pki/dovecot/private/dovecot.pem


なぜ、うまくいかないのか分からないのです。
どなたか、お気づきの点などないでしょうか?

不足な情報があれば出します。

よろしくお願いします。








--
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 Tel:03-5705-2595
 Fax:03-6423-9505 FAX番号が変わりました!
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[postfix-jp: 4350] Re: SMTP oer SSL/TLSができない。

blowingside
宮尾と申します。

systemctl status postfixで次のような警告が出て、permissionが足らないと言ってるようなのですが、
> ---------------------------------------------------------------------------
> warning: cannot get RSA certificate from file /etc/pki/dovecot/certs/dovecot.pem: disabling TLS support

という記載があったので、dovecotでTLSを有効化してないのではないでしょうか?
dovecotの設定が不明でしたのでなんとなくですが。
 /etc/dovecot/conf.d/10-ssl.confか/etc/dovecot.conf(OSによって違うので)の情報も
いただけると良いかもしれません。

以上
 /etc/dovecot/conf.d/10-ssl.conf
2016-03-28 8:10 GMT+09:00 渡辺 <[hidden email]>:

渡辺です。

localhostやリモートホストからSMTPはできるのですが、
SMTP over SSL/TLSができません。

何が悪いのか分からないのですが、設定などを書きます。
どなたかお気づきの点などご教授いただけませんか?

よろしくお願いします。

OS
---------------------------------------------------------------------------
CentOS Linux release 7.2.1511 (Core)

Postfix
---------------------------------------------------------------------------
Version     : 2.10.1
Release     : 6.el7

Dovecot
---------------------------------------------------------------------------
Version     : 2.2.10
Release     : 5.el7

Openssl
---------------------------------------------------------------------------
Version     : 1.0.1e
Release     : 51.el7_2.4


postconf -n
---------------------------------------------------------------------------
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
broken_sasl_auth_clients = yes
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
debug_peer_level = 2
debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin ddd $daemon_directory/$process_name $process_id & sleep 5
home_mailbox = Maildir/
html_directory = no
inet_interfaces = all
inet_protocols = ipv4
mail_owner = postfix
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
mua_client_restrictions = permit_sasl_authenticated,reject
mua_helo_restrictions = permit_sasl_authenticated,reject
mua_sender_restrictions = permit_sasl_authenticated,reject
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
mydomain = yotuba-hd.jp
myhostname = mail.yotuba-hd.jp
mynetworks = 127.0.0.0/8
myorigin = $mydomain
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/postfix-2.10.1/README_FILES
relay_domains = $mydestination
relayhost =
sample_directory = /usr/share/doc/postfix-2.10.1/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtpd_banner = $myhostname Mail System
smtpd_client_restrictions = permit_mynetworks,reject_unknown_client_hostname,permit
smtpd_etrn_restrictions = permit_mynetworks,reject
smtpd_helo_required = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = yes
smtpd_sasl_path = private/auth
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_tls_cert_file = /etc/pki/dovecot/certs/dovecot.pem
smtpd_tls_key_file = /etc/pki/dovecot/private/dovecot.pem
smtpd_tls_loglevel = 1
smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
smtpd_tls_session_cache_database = btree:/var/lib/postfix/smtpd_scache
smtpd_tls_session_cache_timeout = 3600s
smtpd_use_tls = yes
strict_rfc821_envelopes = yes
unknown_local_recipient_reject_code = 550


master.cf
---------------------------------------------------------------------------
smtp      inet  n       -       n       -       -       smtpd
#smtp      inet  n       -       n       -       1 postscreen
#smtpd     pass  -       -       n       -       -       smtpd
#dnsblog   unix  -       -       n       -       0       dnsblog
#tlsproxy  unix  -       -       n       -       0       tlsproxy
submission inet n       -       n       -       -       smtpd
   -o syslog_name=postfix/submission
   -o smtpd_tls_security_level=encrypt
   -o smtpd_sasl_auth_enable=yes
   -o smtpd_reject_unlisted_recipient=no
   -o smtpd_client_restrictions=$mua_client_restrictions
   -o smtpd_helo_restrictions=$mua_helo_restrictions
   -o smtpd_sender_restrictions=$mua_sender_restrictions
   -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
smtps     inet  n       -       n       -       -       smtpd
   -o syslog_name=postfix/smtps
   -o smtpd_tls_wrappermode=yes
   -o smtpd_sasl_auth_enable=yes
   -o smtpd_reject_unlisted_recipient=no
   -o smtpd_client_restrictions=$mua_client_restrictions
   -o smtpd_helo_restrictions=$mua_helo_restrictions
   -o smtpd_sender_restrictions=$mua_sender_restrictions
   -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING



POP3 over SSL/TLS 995をopensslコマンドで確認するとうまくいきます。

openssl s_client -connect localhost:995
---------------------------------------------------------------------------
CONNECTED(00000003)
depth=0 C = JP, (以下省略)
verify error:num=18:self signed certificate
verify return:1
depth=0 C = JP, (以下省略)
verify return:1
---
Certificate chain
  0 s:/C=JP/(以下省略)
    i:/C=JP/(以下省略)
---
Server certificate
-----BEGIN CERTIFICATE-----
MIICyTCCAjKgAwIBAgIJAMWIIUhI1TJcMA0GCSqGSIb3DQEBBQUAMIGaMQswCQYD
(省略します。)
UKoaxaP7E0i3h27dDqzF3nFUKAxZne3bEbDSijkOLyNiWlhjw+iQYmvVJgwQ
-----END CERTIFICATE-----
subject=/C=JP/(以下省略)
issuer=/C=JP/(以下省略)
---
No client certificate CA names sent
Server Temp Key: ECDH, secp384r1, 384 bits
---
SSL handshake has read 1280 bytes and written 405 bytes
---
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-SHA384
Server public key is 1024 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
SSL-Session:
     Protocol  : TLSv1.2
     Cipher    : ECDHE-RSA-AES256-GCM-SHA384
     Session-ID: 3789EA55C54C91AD4CFCFB08F935E9E1F4DEEB6D4CBDC1AD6A3B3679AE020C5A
     Session-ID-ctx:
     Master-Key: E583E7932E7F6974402D67DD336467E863A2A7A4146E38C763C6DA9971737D6585871604459186FF1D8B31B141532D08
     Key-Arg   : None
     Krb5 Principal: None
     PSK identity: None
     PSK identity hint: None
     TLS session ticket lifetime hint: 300 (seconds)
     TLS session ticket:
     0000 - 53 8c 09 60 ce 13 11 73-0d 9b 9d 2d 15 67 e8 06 S..`...s...-.g..
  (省略します。)

     Start Time: 1459117361
     Timeout   : 300 (sec)
     Verify return code: 18 (self signed certificate)
---
+OK Dovecot ready.


で、メールの受信、一覧ができます。


ところがsmtp over ssl/tlsで接続しようとすると
次のような反応が返ってきてopensslコマンドが終わってしまいます。
openssl s_client -connect localhost:465
---------------------------------------------------------------------------
CONNECTED(00000003)
write:errno=104
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 0 bytes and written 247 bytes
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE


systemctl status postfixで次のような警告が出て、permissionが足らないと言ってるようなのですが、
---------------------------------------------------------------------------
warning: cannot get RSA certificate from file /etc/pki/dovecot/certs/dovecot.pem: disabling TLS support
warning: TLS library problem: 30954:error:0200100D:system library:fopen:Permission denied:bss_file.c:398:fopen('/etc/pki/dovecot/certs/dovecot.pem','r'):
warning: TLS library problem: 30954:error:20074002:BIO routines:FILE_CTRL:system lib:bss_file.c:400:
warning: TLS library problem: 30954:error:140DC002:SSL routines:SSL_CTX_use_certificate_chain_file:system lib:ssl_rsa.c:722:
connect from localhost[127.0.0.1]
warning: Wrapper-mode request dropped from localhost[127.0.0.1] for service smtps. TLS context initialization failed. For details see earlier warnings in your logs.
disconnect from localhost[127.0.0.1]


このファイルは777にしてあります。(777はいけないのかも知れないですが。)
ls -la /etc/pki/dovecot/certs/dovecot.pem
---------------------------------------------------------------------------
-rwxrwxrwx. 1 root root 1025 Mar 28 07:12 /etc/pki/dovecot/certs/dovecot.pem

一応こっちも
ls -la /etc/pki/dovecot/private/dovecot.pem
---------------------------------------------------------------------------
-rwxrwxrwx. 1 root root 916 Mar 28 07:12 /etc/pki/dovecot/private/dovecot.pem


なぜ、うまくいかないのか分からないのです。
どなたか、お気づきの点などないでしょうか?

不足な情報があれば出します。

よろしくお願いします。








--
/////ノベルット///////////////////////////////////////////////
 株式会社 ノベルット ソフトウェア インダストリー
  代表取締役 渡辺 伸雄
 〒144-0043 東京都 大田区 羽田2-12-3
 Tel:03-5705-2595
 Fax:03-6423-9505 FAX番号が変わりました!
 mobile-phone:080-3430-2595 070-5582-6540
   [hidden email]
///////////////////////////////////////////////ノベルット/////

_______________________________________________
Postfix-jp-list mailing list
[hidden email]
http://lists.osdn.me/mailman/listinfo/postfix-jp-list


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[postfix-jp: 4351] Re: SMTP oer SSL/TLSができない。

Tomoo Nomura
In reply to this post by 渡辺
こんにちは。

> このファイルは777にしてあります。(777はいけないのかも知れないですが。)
> ls -la /etc/pki/dovecot/certs/dovecot.pem
> ---------------------------------------------------------------------------
> -rwxrwxrwx. 1 root root 1025 Mar 28 07:12 /etc/pki/dovecot/certs/dovecot.pem

ここは、 -rw-r--r--

> 一応こっちも
> ls -la /etc/pki/dovecot/private/dovecot.pem
> ---------------------------------------------------------------------------
> -rwxrwxrwx. 1 root root 916 Mar 28 07:12 /etc/pki/dovecot/private/dovecot.pem

ここは、 -rw-------


これで、どうでしょうか?

野村

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[postfix-jp: 4352] Re: SMTP oer SSL/TLSができない。

Ryuji MATSUMOTO
In reply to this post by 渡辺
松元です.

このSSL証明書は外部で作ってこのサーバにコピーしたという可能性はありま
せんか?

その場合はよくあるSELinuxではないですかね.

SELinuxをpermissiveにしてrebootしてみてください.


> ---------------------------------------------------------------------------
> warning: cannot get RSA certificate from file /etc/pki/dovecot/certs/dovecot.pem: disabling TLS support
> warning: TLS library problem: 30954:error:0200100D:system library:fopen:Permission denied:bss_file.c:398:fopen('/etc/pki/dovecot/certs/dovecot.pem','r'):
> warning: TLS library problem: 30954:error:20074002:BIO routines:FILE_CTRL:system lib:bss_file.c:400:
> warning: TLS library problem: 30954:error:140DC002:SSL routines:SSL_CTX_use_certificate_chain_file:system lib:ssl_rsa.c:722:
> connect from localhost[127.0.0.1]
> warning: Wrapper-mode request dropped from localhost[127.0.0.1] for service smtps. TLS context initialization failed. For details see earlier warnings in your logs.
> disconnect from localhost[127.0.0.1]

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[postfix-jp: 4353] Re: SMTP oer SSL/TLSができない。

Ryuji MATSUMOTO
松元です.

書き忘れていました.もしpermissiveにして正常動作した場合はSELinuxの設
定を行って,それからSELinuxをenforcing に戻して下さい(汗

>
> このSSL証明書は外部で作ってこのサーバにコピーしたという可能性はありま
> せんか?
>
> その場合はよくあるSELinuxではないですかね.
>
> SELinuxをpermissiveにしてrebootしてみてください.
>
>
>> ---------------------------------------------------------------------------
>> warning: cannot get RSA certificate from file /etc/pki/dovecot/certs/dovecot.pem: disabling TLS support
>> warning: TLS library problem: 30954:error:0200100D:system library:fopen:Permission denied:bss_file.c:398:fopen('/etc/pki/dovecot/certs/dovecot.pem','r'):
>> warning: TLS library problem: 30954:error:20074002:BIO routines:FILE_CTRL:system lib:bss_file.c:400:
>> warning: TLS library problem: 30954:error:140DC002:SSL routines:SSL_CTX_use_certificate_chain_file:system lib:ssl_rsa.c:722:
>> connect from localhost[127.0.0.1]
>> warning: Wrapper-mode request dropped from localhost[127.0.0.1] for service smtps. TLS context initialization failed. For details see earlier warnings in your logs.
>> disconnect from localhost[127.0.0.1]
>
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