以前作成したWebサーバー用サーバー証明書作成ワークディレクトリ直下にメールサーバー用サーバー証明書作成ワークディレクトリを作成します。
[root@centos ~]# cd /etc/pki/tls/yasu
[root@centos yasu]# mkdir mailssl

以前作成したOpenSSLの設定ファイルをコピーして再利用します
[root@centos yasu]# cp openssl.cnf ./mailssl
[root@centos yasu]# cd mailssl
[root@centos mailssl]# ls -la
合計 32
drwxr-xr-x 2 root root 4096 4月 5 12:51 .
drw——- 3 root root 4096 4月 5 12:50 ..
-r——– 1 root root 9534 4月 5 12:51 openssl.cnf

中身が空っぽのテキストファイル index.txt と01と書いた serial ファイルを作成します
[root@centos mailssl]# touch index.txt
[root@centos mailssl]# echo 01 > serial
[root@centos mailssl]# ls -la
合計 44
drwxr-xr-x 2 root root 4096 4月 5 12:51 .
drw——- 3 root root 4096 4月 5 12:50 ..
-rw-r–r– 1 root root 0 4月 5 12:51 index.txt
-r——– 1 root root 9534 4月 5 12:51 openssl.cnf
-rw-r–r– 1 root root 3 4月 5 12:51 serial

[root@centos mailssl]# openssl genrsa -out ./server.key -des3 1024
Generating RSA private key, 1024 bit long modulus
….++++++
……….++++++
e is 65537 (0×10001)
Enter pass phrase for ./server.key:任意のパスフレーズを入力
Verifying – Enter pass phrase for ./server.key:もう一度任意のパスフレーズを入力

メールサーバーにSSLでアクセスした時に毎回パスフレーズを聞かれないようにパスフレーズ付きサーバー秘密鍵を作成します
[root@centos mailssl]# openssl rsa -in ./server.key -out ./server.key
Enter pass phrase for ./server.key:上記パスフレーズを応答
writing RSA key

[root@centos mailssl]# ls -la
合計 52
drwxr-xr-x 2 root root 4096 4月 5 12:52 .
drw——- 3 root root 4096 4月 5 12:50 ..
-rw-r–r– 1 root root 0 4月 5 12:51 index.txt
-r——– 1 root root 9534 4月 5 12:51 openssl.cnf
-rw-r–r– 1 root root 3 4月 5 12:51 serial
-rw-r–r– 1 root root 963 4月 5 12:52 server.key

server.key というファイルが作成されました

[root@centos mailssl]# openssl req -new -days 3650 -config ./openssl.cnf -key ./server.key -out ./server.csr
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter ‘.’, the field will be left blank.
—–
Country Name (2 letter code) [GB]:JP
State or Province Name (full name) [Berkshire]:chiba
Locality Name (eg, city) [Newbury]:urayasu
Organization Name (eg, company) [My Company Ltd]:sa-sa-ki.jp
Organizational Unit Name (eg, section) []:何も入力しないで[Enter]キーを押下
Common Name (eg, your name or your server’s hostname) []:mail.sa-sa-ki.jp
Email Address []:何も入力しないで[Enter]キーを押下

Please enter the following ‘extra’ attributes
to be sent with your certificate request
A challenge password []:何も入力しないで[Enter]キーを押下
An optional company name []:何も入力しないで[Enter]キーを押下
[root@centos mailssl]# ls -la
合計 60
drwxr-xr-x 2 root root 4096 4月 5 12:53 .
drw——- 3 root root 4096 4月 5 12:50 ..
-rw-r–r– 1 root root 0 4月 5 12:51 index.txt
-r——– 1 root root 9534 4月 5 12:51 openssl.cnf
-rw-r–r– 1 root root 3 4月 5 12:51 serial
-rw-r–r– 1 root root 639 4月 5 12:53 server.csr
-rw-r–r– 1 root root 887 4月 5 12:52 server.key

server.csr というファイルが作成されました

[root@centos mailssl]# openssl ca -config ./openssl.cnf -days 3650 -in ./server.csr -keyfile ../cakey.pem -cert ../cacert.pem -out ./server.pem
※サーバー証明書を作成するのに必要な認証局の秘密鍵と認証局の証明書は以前Webサーバーのサーバー証明書を作成した時に作ったものを指定します
Using configuration from ./openssl.cnf
Enter pass phrase for ../cakey.pem:以前Webサーバーのサーバー証明書を作成した時に作った認証局のパスフレーズを応答
Check that the request matches the signature
Signature ok
Certificate Details:
Serial Number: 1 (0×1)
Validity
Not Before: Apr 5 04:01:14 2009 GMT
Not After : Apr 3 04:01:14 2019 GMT
Subject:
countryName = JP
stateOrProvinceName = chiba
organizationName = sa-sa-ki.jp
commonName = mail.sa-sa-ki.jp
X509v3 extensions:
X509v3 Basic Constraints:
CA:FALSE
Netscape Comment:
OpenSSL Generated Certificate
X509v3 Subject Key Identifier:
38:88:E0:47:C2:D6:C0:2F:C7:95:8A:DF:D1:BB:76:61:AB:47:CC:96
X509v3 Authority Key Identifier:
keyid:FE:40:F5:F1:60:78:3F:F4:BF:63:2B:FE:DE:CE:D9:32:5B:44:05:52

Certificate is to be certified until Apr 3 04:01:14 2019 GMT (3650 days)
Sign the certificate? [y/n]:y

1 out of 1 certificate requests certified, commit? [y/n]y
Write out database with 1 new entries
Data Base Updated

各ファイルをrootユーザ読み取り専用に権限を変更します
[root@centos mailssl]# chmod 400 *
[root@centos mailssl]# ls -l
合計 48
-r——– 1 root root 0 4月 5 12:51 index.txt
-r——– 1 root root 9534 4月 5 12:51 openssl.cnf
-r——– 1 root root 0 4月 5 12:55 serial
-r——– 1 root root 639 4月 5 12:53 server.csr
-r——– 1 root root 887 4月 5 12:52 server.key
-r——– 1 root root 830 4月 5 12:54 server.pem

server.pemというファイルが作成されました

[root@centos mailssl]# cp server.key /etc/postfix
[root@centos mailssl]# cp server.pem /etc/postfix
[root@centos mailssl]# cp server.key /etc/pki/dovecot
[root@centos mailssl]# cp server.pem /etc/pki/dovecot

[root@centos mailssl]# cd
[root@centos ~]# vi /etc/postfix/main.cf

viエディタが起動するので追加します

# SMTP SSL
smtpd_use_tls = yes
smtpd_tls_cert_file = /etc/postfix/server.pem
smtpd_tls_key_file = /etc/postfix/server.key
smtpd_tls_session_cache_database = btree:/etc/postfix/smtpd_scache

内容を保存しviエディタを終了します

[root@centos ~]# vi /etc/postfix/master.cf

viエディタが起動するので修正します

#
# Postfix master process configuration file. For details on the format
# of the file, see the master(5) manual page (command: “man 5 master”).
#
# ==========================================================================
# service type private unpriv chroot wakeup maxproc command + args
# (yes) (yes) (yes) (never) (100)
# ==========================================================================
smtp inet n – n – – smtpd
#submission inet n – n – – smtpd
# -o smtpd_enforce_tls=yes
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_client_restrictions=permit_sasl_authenticated,reject
以下4行の先頭の#を外してコメントを解除します
smtps inet n – n – – smtpd
-o smtpd_tls_wrappermode=yes
-o smtpd_sasl_auth_enable=yes
-o smtpd_client_restrictions=permit_sasl_authenticated,reject

#628 inet n – n – – qmqpd
pickup fifo n – n 60 1 pickup
cleanup unix n – n – 0 cleanup
qmgr fifo n – n 300 1 qmgr
#qmgr fifo n – n 300 1 oqmgr
tlsmgr unix – – n 1000? 1 tlsmgr
rewrite unix – – n – – trivial-rewrite
bounce unix – – n – 0 bounce
defer unix – – n – 0 bounce
trace unix – – n – 0 bounce
verify unix – – n – 1 verify
flush unix n – n 1000? 0 flush
proxymap unix – – n – – proxymap
smtp unix – – n – – smtp
# When relaying mail as backup MX, disable fallback_relay to avoid MX loops
relay unix – – n – – smtp
-o fallback_relay=
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq unix n – n – – showq
error unix – – n – – error
discard unix – – n – – discard
local unix – n n – – local
virtual unix – n n – – virtual
lmtp unix – – n – – lmtp
anvil unix – – n – 1 anvil
scache unix – – n – 1 scache

内容を保存しviエディタを終了します

[root@centos ~]# vi /etc/dovecot.conf

viエディタが起動するので追加します

# Disable SSL/TLS support.
#ssl_disable = no
ssl_disable = no

# PEM encoded X.509 SSL/TLS certificate and private key. They’re opened before
# dropping root privileges, so keep the key file unreadable by anyone but
# root. Included doc/mkcert.sh can be used to easily generate self-signed
# certificate, just make sure to update the domains in dovecot-openssl.cnf
#ssl_cert_file = /etc/pki/dovecot/certs/dovecot.pem
#ssl_key_file = /etc/pki/dovecot/private/dovecot.pem
ssl_cert_file = /etc/pki/dovecot/server.pem
ssl_key_file = /etc/pki/dovecot/server.key

内容を保存しviエディタを終了します

[root@centos ~]# vi /etc/sysconfig/iptables

viエディタが起動するので追加します

# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Firewall-1-INPUT – [0:0]
-A INPUT -j RH-Firewall-1-INPUT
-A FORWARD -j RH-Firewall-1-INPUT
-A RH-Firewall-1-INPUT -i lo -j ACCEPT
-A RH-Firewall-1-INPUT -p icmp –icmp-type any -j ACCEPT
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp –dport 5353 -d 224.0.0.251 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp -m udp –dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp –dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state ESTABLISHED,RELATED -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 22 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 25 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 53 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m udp -p udp –dport 53 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 80 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 110 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 123 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m udp -p udp –dport 123 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 143 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 443 -j ACCEPT
下記6行を追加してTCPの465番ポート(smtps)、993番ポート(imaps)、995番ポート(pop3s)を開放します
IP制御をしてローカルネットワーク内と特定の外部からのみ接続できるようにします
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 465 -s 192.168.0.0/24 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 465 -s xxx.xxx.xx.xx(外部IPアドレス) -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 993 -s 192.168.0.0/24 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 993 -s xxx.xxx.xx.xx(外部IPアドレス) -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 995 -s 192.168.0.0/24 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 995 -s xxx.xxx.xx.xx(外部IPアドレス) -j ACCEPT
-A RH-Firewall-1-INPUT -j REJECT –reject-with icmp-host-prohibited
COMMIT

内容を保存しviエディタを終了します

設定内容を反映します
[root@centos ~]# /etc/rc.d/init.d/iptables restart
ファイアウォールルールを適用中: [ OK ]
チェインポリシーを ACCEPT に設定中filter [ OK ]
iptables モジュールを取り外し中 [ OK ]
iptables ファイアウォールルールを適用中: [ OK ]
iptables モジュールを読み込み中ip_conntrack_netbios_ns [ OK ]

サーバー証明書作成用作業ディレクトリを作成します
[root@centos ~]# mkdir /etc/pki/tls/yasu
サーバー証明書作成用作業ディレクトリはrootユーザのみ読み書きできるように権限を変更します
[root@centos ~]# chmod 600 /etc/pki/tls/yasu

OpenSSLの設定ファイルを編集します
/etc/pki/tls直下にOpenSSLの設定ファイルがあるので、それを/etc/pki/tls/yasuにコピーします
[root@centos ~]# cp -p /etc/pki/tls/openssl.cnf /etc/pki/tls/yasu

/etc/pki/tls/yasuにコピーしたOpenSSLの設定ファイルをviエディタで開き、以下の箇所を編集します
[root@centos ~]# cd /etc/pki/tls/yasu
[root@centos yasu]# vi openssl.cnf
■修正前
[37～39行目]
dir = ./demoCA # Where everything is kept
certs = $dir/certs # Where the issued certs are kept
crl_dir = $dir/crl # Where the issued crl are kept
[43行目]
new_certs_dir = $dir/newcerts # default place for new certs.
[50～51行目]
private_key = $dir/private/cakey.pem# The private key
RANDFILE = $dir/private/.rand # private random number file

■修正後
[37～39行目]
dir = . # Where everything is kept
certs = $dir # Where the issued certs are kept
crl_dir = $dir # Where the issued crl are kept
[43行目]
new_certs_dir = $dir # default place for new certs.
[50～51行目]
private_key = $dir/cakey.pem# The private key
RANDFILE = $dir/.rand # private random number file

/etc/pki/tls/yasu に中身が空っぽのテキストファイル index.txt と01と書いた serial ファイルを作成します
[root@centos yasu]# touch index.txt
[root@centos yasu]# echo 01 > serial

[root@centos yasu]# ls -l
合計 28
-rw-r–r– 1 root root 0 3月 17 11:31 index.txt
-rw-r–r– 1 root root 9534 3月 17 11:30 openssl.cnf
-rw-r–r– 1 root root 3 3月 17 11:31 serial

[root@centos yasu]# openssl genrsa -out ./cakey.pem -des3 1024
Generating RSA private key, 1024 bit long modulus
………………++++++
……………………………………………++++++
e is 65537 (0×10001)
Enter pass phrase for ./cakey.pem:任意のパスフレーズを入力
Verifying – Enter pass phrase for ./cakey.pem:もう一度任意のパスフレーズを入力

[root@centos yasu]# ls -l
合計 36
-rw-r–r– 1 root root 963 3月 17 15:28 cakey.pem
-rw-r–r– 1 root root 0 3月 17 11:31 index.txt
-rw-r–r– 1 root root 9534 3月 17 11:30 openssl.cnf
-rw-r–r– 1 root root 3 3月 17 11:31 serial

これで/etc/pki/tls/yasu ディレクトリにはcakey.pemというファイルが作成されましたね。
これが認証局の秘密鍵になります。

[root@centos yasu]# openssl req -new -x509 -days 3650 -config ./openssl.cnf -key ./cakey.pem -out ./cacert.pem
Enter pass phrase for ./cakey.pem:「２．認証局の秘密鍵作成」で指定したパスフレーズを応答
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter ‘.’, the field will be left blank.
—–
Country Name (2 letter code) [GB]:JP
State or Province Name (full name) [Berkshire]:chiba
Locality Name (eg, city) [Newbury]:urayasu
Organization Name (eg, company) [My Company Ltd]:sa-sa-ki.jp
Organizational Unit Name (eg, section) []:何も入力しないで[Enter]キーを押下
Common Name (eg, your name or your server’s hostname) []:www.sa-sa-ki.jp
Email Address []:何も入力しないで[Enter]キーを押下

[root@centos yasu]# ls -l
合計 44
-rw-r–r– 1 root root 1164 3月 17 15:33 cacert.pem
-rw-r–r– 1 root root 963 3月 17 15:28 cakey.pem
-rw-r–r– 1 root root 0 3月 17 11:31 index.txt
-rw-r–r– 1 root root 9534 3月 17 11:30 openssl.cnf
-rw-r–r– 1 root root 3 3月 17 11:31 serial

cacert.pem というファイルが作成されました。

[root@centos yasu]# openssl x509 -days 3650 -inform pem -outform der -in ./cacert.pem -out ./ca.der
[
[root@centos yasu]# ls -l
合計 52
-rw-r–r– 1 root root 818 3月 17 15:36 ca.der
-rw-r–r– 1 root root 1164 3月 17 15:33 cacert.pem
-rw-r–r– 1 root root 963 3月 17 15:28 cakey.pem
-rw-r–r– 1 root root 0 3月 17 11:31 index.txt
-rw-r–r– 1 root root 9534 3月 17 11:30 openssl.cnf
-rw-r–r– 1 root root 3 3月 17 11:31 serial

ca.der というファイルが作成されました。
「１３．SSLの動作確認および認証局の証明書インポート」で使うのでそれまで大切に保管してください。

[root@centos yasu]# openssl genrsa -out ./server.key -des3 1024
Generating RSA private key, 1024 bit long modulus
….++++++
…..++++++
e is 65537 (0×10001)
Enter pass phrase for ./server.key:任意のパスフレーズを入力
Verifying – Enter pass phrase for ./server.key:もう一度任意のパスフレーズを入力

WebサーバーにSSLでアクセスした時に毎回パスフレーズを聞かれないようにサーバー秘密鍵のパスフレーズを削除します。
[root@centos yasu]# openssl rsa -in ./server.key -out ./server.key
Enter pass phrase for server.key:上記パスフレーズを応答
writing RSA key

[root@centos yasu]# ls -l
合計 60
-rw-r–r– 1 root root 818 3月 17 15:36 ca.der
-rw-r–r– 1 root root 1164 3月 17 15:33 cacert.pem
-rw-r–r– 1 root root 963 3月 17 15:28 cakey.pem
-rw-r–r– 1 root root 0 3月 17 11:31 index.txt
-rw-r–r– 1 root root 9534 3月 17 11:30 openssl.cnf
-rw-r–r– 1 root root 3 3月 17 11:31 serial
-rw-r–r– 1 root root 887 3月 17 15:38 server.key

server.key というファイルが作成されました。

[root@centos yasu]# openssl req -new -days 3650 -config ./openssl.cnf -key ./server.key -out ./server.csr
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter ‘.’, the field will be left blank.
—–
Country Name (2 letter code) [GB]:JP
State or Province Name (full name) [Berkshire]:chiba
Locality Name (eg, city) [Newbury]:urayasu
Organization Name (eg, company) [My Company Ltd]:sa-sa-ki.jp
Organizational Unit Name (eg, section) []:何も入力しないで[Enter]キーを押下
Common Name (eg, your name or your server’s hostname) []:www.sa-sa-ki.jp
Email Address []:何も入力しないで[Enter]キーを押下

Please enter the following ‘extra’ attributes
to be sent with your certificate request
A challenge password []:何も入力しないで[Enter]キーを押下
An optional company name []:何も入力しないで[Enter]キーを押下

[root@centos yasu]# ls -l
合計 68
-rw-r–r– 1 root root 773 3月 17 16:49 ca.der
-rw-r–r– 1 root root 1103 3月 17 16:48 cacert.pem
-rw-r–r– 1 root root 963 3月 17 16:48 cakey.pem
-rw-r–r– 1 root root 0 3月 17 11:31 index.txt
-rw-r–r– 1 root root 9534 3月 17 11:30 openssl.cnf
-rw-r–r– 1 root root 3 3月 17 11:31 serial
-rw-r–r– 1 root root 639 3月 17 16:49 server.csr
-rw-r–r– 1 root root 891 3月 17 16:46 server.key

server.csr というファイルが作成されました。

[root@centos yasu]# openssl ca -config ./openssl.cnf -days 3650 -in ./server.csr -keyfile ./cakey.pem -cert ./cacert.pem -out ./server.cer
Using configuration from ./openssl.cnf
Enter pass phrase for ./cakey.pem:「２．認証局の秘密鍵作成」で指定したパスフレーズを応答
Check that the request matches the signature
Signature ok
Certificate Details:
Serial Number: 1 (0×1)
Validity
Not Before: Mar 17 07:50:57 2009 GMT
Not After : Mar 15 07:50:57 2019 GMT
Subject:
countryName = JP
stateOrProvinceName = chiba
organizationName = sa-sa-ki.jp
commonName = www.sa-sa-ki.jp
X509v3 extensions:
X509v3 Basic Constraints:
CA:FALSE
Netscape Comment:
OpenSSL Generated Certificate
X509v3 Subject Key Identifier:
F9:35:8B:89:22:16:B6:C8:F5:7E:C9:CB:28:DE:FF:0B:F9:7D:54:77
X509v3 Authority Key Identifier:
keyid:FE:40:F5:F1:60:78:3F:F4:BF:63:2B:FE:DE:CE:D9:32:5B:44:05:52

Certificate is to be certified until Mar 15 07:50:57 2019 GMT (3650 days)
Sign the certificate? [y/n]:y

1 out of 1 certificate requests certified, commit? [y/n]y
Write out database with 1 new entries
Data Base Updated

[root@centos yasu]# ls -l
合計 108
-rw-r–r– 1 root root 3050 3月 17 16:51 01.pem
-rw-r–r– 1 root root 773 3月 17 16:49 ca.der
-rw-r–r– 1 root root 1103 3月 17 16:48 cacert.pem
-rw-r–r– 1 root root 963 3月 17 16:48 cakey.pem
-rw-r–r– 1 root root 76 3月 17 16:51 index.txt
-rw-r–r– 1 root root 21 3月 17 16:51 index.txt.attr
-rw-r–r– 1 root root 0 3月 17 11:31 index.txt.old
-rw-r–r– 1 root root 9534 3月 17 11:30 openssl.cnf
-rw-r–r– 1 root root 3 3月 17 16:51 serial
-rw-r–r– 1 root root 3 3月 17 11:31 serial.old
-rw-r–r– 1 root root 3050 3月 17 16:51 server.cer
-rw-r–r– 1 root root 639 3月 17 16:49 server.csr
-rw-r–r– 1 root root 891 3月 17 16:46 server.key

server.cer というファイルが作成されました。

各ファイルをrootユーザ読み取り専用に権限を変更します。
[root@centos yasu]# chmod 400 *
[root@centos yasu]# ls -l
合計 108
-r——– 1 root root 3050 3月 17 16:51 01.pem
-r——– 1 root root 773 3月 17 16:49 ca.der
-r——– 1 root root 1103 3月 17 16:48 cacert.pem
-r——– 1 root root 963 3月 17 16:48 cakey.pem
-r——– 1 root root 76 3月 17 16:51 index.txt
-r——– 1 root root 21 3月 17 16:51 index.txt.attr
-r——– 1 root root 0 3月 17 11:31 index.txt.old
-r——– 1 root root 9534 3月 17 11:30 openssl.cnf
-r——– 1 root root 3 3月 17 16:51 serial
-r——– 1 root root 3 3月 17 11:31 serial.old
-r——– 1 root root 3050 3月 17 16:51 server.cer
-r——– 1 root root 639 3月 17 16:49 server.csr
-r——– 1 root root 891 3月 17 16:46 server.key

[root@centos yasu]# vi /etc/httpd/conf.d/ssl.conf
viエディタが起動するので設定ファイルを変更します。
#
# This is the Apache server configuration file providing SSL support.
# It contains the configuration directives to instruct the server how to
# serve pages over an https connection. For detailing information about these
# directives see
#
# Do NOT simply read the instructions in here without understanding
# what they do. They’re here only as hints or reminders. If you are unsure
# consult the online docs. You have been warned.
#

LoadModule ssl_module modules/mod_ssl.so

#
# When we also provide SSL we have to listen to the
# the HTTPS port in addition.
#
Listen 443

##
## SSL Global Context
##
## All SSL configuration in this context applies both to
## the main server and all SSL-enabled virtual hosts.
##

#
# Some MIME-types for downloading Certificates and CRLs
#
AddType application/x-x509-ca-cert .crt
AddType application/x-pkcs7-crl .crl

# Pass Phrase Dialog:
# Configure the pass phrase gathering process.
# The filtering dialog program (`builtin’ is a internal
# terminal dialog) has to provide the pass phrase on stdout.
SSLPassPhraseDialog builtin

# Inter-Process Session Cache:
# Configure the SSL Session Cache: First the mechanism
# to use and second the expiring timeout (in seconds).
#SSLSessionCache dc:UNIX:/var/cache/mod_ssl/distcache
SSLSessionCache shmcb:/var/cache/mod_ssl/scache(512000)
SSLSessionCacheTimeout 300

# Semaphore:
# Configure the path to the mutual exclusion semaphore the
# SSL engine uses internally for inter-process synchronization.
SSLMutex default

# Pseudo Random Number Generator (PRNG):
# Configure one or more sources to seed the PRNG of the
# SSL library. The seed data should be of good random quality.
# WARNING! On some platforms /dev/random blocks if not enough entropy
# is available. This means you then cannot use the /dev/random device
# because it would lead to very long connection times (as long as
# it requires to make more entropy available). But usually those
# platforms additionally provide a /dev/urandom device which doesn’t
# block. So, if available, use this one instead. Read the mod_ssl User
# Manual for more details.
SSLRandomSeed startup file:/dev/urandom 256
SSLRandomSeed connect builtin
#SSLRandomSeed startup file:/dev/random 512
#SSLRandomSeed connect file:/dev/random 512
#SSLRandomSeed connect file:/dev/urandom 512

#
# Use “SSLCryptoDevice” to enable any supported hardware
# accelerators. Use “openssl engine -v” to list supported
# engine names. NOTE: If you enable an accelerator and the
# server does not start, consult the error logs and ensure
# your accelerator is functioning properly.
#
SSLCryptoDevice builtin
#SSLCryptoDevice ubsec

##
## SSL Virtual Host Context
##

# General setup for the virtual host, inherited from global configuration
先頭の#を外してコメントを解除します
DocumentRoot “/var/www/html”
先頭の#を外してコメントを解除し、サーバー名を修正します
ServerName www.sa-sa-ki.jp:443

# Use separate log files for the SSL virtual host; note that LogLevel
# is not inherited from httpd.conf.
ErrorLog logs/ssl_error_log
TransferLogのファイル名をssl_access_logからssl_transfer_logに変更します
TransferLog logs/ssl_transfer_log
LogLevel warn

ログファイルのフォーマットを定義します
#
# The following directives define some format nicknames for use with
# a CustomLog directive (see below).
#
LogFormat “%h %l %u %t \”%r\” %>s %b \”%{Referer}i\” \”%{User-Agent}i\”" combined
LogFormat “%h %l %u %t \”%r\” %>s %b” common
LogFormat “%{Referer}i -> %U” referer
LogFormat “%{User-agent}i” agent

#
# For a single logfile with access, agent, and referer information
# (Combined Logfile Format), use the following directive:
#
CustomLog logs/ssl_access_log combined

# SSL Engine Switch:
# Enable/Disable SSL for this virtual host.
SSLEngine on

# SSL Protocol support:
# List the enable protocol levels with which clients will be able to
# connect. Disable SSLv2 access by default:
SSLProtocol all -SSLv2

# SSL Cipher Suite:
# List the ciphers that the client is permitted to negotiate.
# See the mod_ssl documentation for a complete list.
SSLCipherSuite ALL:!ADH:!EXPORT:!SSLv2:RC4+RSA:+HIGH:+MEDIUM:+LOW

# Server Certificate:
# Point SSLCertificateFile at a PEM encoded certificate. If
# the certificate is encrypted, then you will be prompted for a
# pass phrase. Note that a kill -HUP will prompt again. A new
# certificate can be generated using the genkey(1) command.
先頭に#をつけてコメント化します
#SSLCertificateFile /etc/pki/tls/certs/localhost.crt
追加します
SSLCertificateFile /etc/pki/tls/certs/server.cer

# Server Private Key:
# If the key is not combined with the certificate, use this
# directive to point at the key file. Keep in mind that if
# you’ve both a RSA and a DSA private key you can configure
# both in parallel (to also allow the use of DSA ciphers, etc.)
先頭に#をつけてコメント化します
#SSLCertificateKeyFile /etc/pki/tls/private/localhost.key
追加します
SSLCertificateKeyFile /etc/pki/tls/private/server.key

# Server Certificate Chain:
# Point SSLCertificateChainFile at a file containing the
# concatenation of PEM encoded CA certificates which form the
# certificate chain for the server certificate. Alternatively
# the referenced file can be the same as SSLCertificateFile
# when the CA certificates are directly appended to the server
# certificate for convinience.
#SSLCertificateChainFile /etc/pki/tls/certs/server-chain.crt

# Certificate Authority (CA):
# Set the CA certificate verification path where to find CA
# certificates for client authentication or alternatively one
# huge file containing all of them (file must be PEM encoded)
#SSLCACertificateFile /etc/pki/tls/certs/ca-bundle.crt

# Client Authentication (Type):
# Client certificate verification type and depth. Types are
# none, optional, require and optional_no_ca. Depth is a
# number which specifies how deeply to verify the certificate
# issuer chain before deciding the certificate is not valid.
#SSLVerifyClient require
#SSLVerifyDepth 10

# Access Control:
# With SSLRequire you can do per-directory access control based
# on arbitrary complex boolean expressions containing server
# variable checks and other lookup directives. The syntax is a
# mixture between C and Perl. See the mod_ssl documentation
# for more details.
#
#SSLRequire ( %{SSL_CIPHER} !~ m/^(EXP|NULL)/ \
# and %{SSL_CLIENT_S_DN_O} eq “Snake Oil, Ltd.” \
# and %{SSL_CLIENT_S_DN_OU} in {”Staff”, “CA”, “Dev”} \
# and %{TIME_WDAY} >= 1 and %{TIME_WDAY} < = 5 \
# and %{TIME_HOUR} >= 8 and %{TIME_HOUR} < = 20 ) \
# or %{REMOTE_ADDR} =~ m/^192\.76\.162\.[0-9]+$/
#

# SSL Engine Options:
# Set various options for the SSL engine.
# o FakeBasicAuth:
# Translate the client X.509 into a Basic Authorisation. This means that
# the standard Auth/DBMAuth methods can be used for access control. The
# user name is the `one line’ version of the client’s X.509 certificate.
# Note that no password is obtained from the user. Every entry in the user
# file needs this password: `xxj31ZMTZzkVA’.
# o ExportCertData:
# This exports two additional environment variables: SSL_CLIENT_CERT and
# SSL_SERVER_CERT. These contain the PEM-encoded certificates of the
# server (always existing) and the client (only existing when client
# authentication is used). This can be used to import the certificates
# into CGI scripts.
# o StdEnvVars:
# This exports the standard SSL/TLS related `SSL_*’ environment variables.
# Per default this exportation is switched off for performance reasons,
# because the extraction step is an expensive operation and is usually
# useless for serving static content. So one usually enables the
# exportation for CGI and SSI requests only.
# o StrictRequire:
# This denies access when “SSLRequireSSL” or “SSLRequire” applied even
# under a “Satisfy any” situation, i.e. when it applies access is denied
# and no other module can change it.
# o OptRenegotiate:
# This enables optimized SSL connection renegotiation handling when SSL
# directives are used in per-directory context.
#SSLOptions +FakeBasicAuth +ExportCertData +StrictRequire

SSLOptions +StdEnvVars


SSLOptions +StdEnvVars

# SSL Protocol Adjustments:
# The safe and default but still SSL/TLS standard compliant shutdown
# approach is that mod_ssl sends the close notify alert but doesn’t wait for
# the close notify alert from client. When you need a different shutdown
# approach you can use one of the following variables:
# o ssl-unclean-shutdown:
# This forces an unclean shutdown when the connection is closed, i.e. no
# SSL close notify alert is send or allowed to received. This violates
# the SSL/TLS standard but is needed for some brain-dead browsers. Use
# this when you receive I/O errors because of the standard approach where
# mod_ssl sends the close notify alert.
# o ssl-accurate-shutdown:
# This forces an accurate shutdown when the connection is closed, i.e. a
# SSL close notify alert is send and mod_ssl waits for the close notify
# alert of the client. This is 100% SSL/TLS standard compliant, but in
# practice often causes hanging connections with brain-dead browsers. Use
# this only for browsers where you know that their SSL implementation
# works correctly.
# Notice: Most problems of broken clients are also related to the HTTP
# keep-alive facility, so you usually additionally want to disable
# keep-alive for those clients, too. Use variable “nokeepalive” for this.
# Similarly, one has to force some clients to use HTTP/1.0 to workaround
# their broken HTTP/1.1 implementation. Use variables “downgrade-1.0″ and
# “force-response-1.0″ for this.
SetEnvIf User-Agent “.*MSIE.*” \
nokeepalive ssl-unclean-shutdown \
downgrade-1.0 force-response-1.0

# Per-Server Logging:
# The home of a custom SSL log file. Use this when you want a
# compact non-error SSL logfile on a virtual host basis.
CustomLog logs/ssl_request_log \
“%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \”%r\” %b”

内容を保存しviエディタを終了します

[root@centos yasu]# cp -p server.cer /etc/pki/tls/certs/
[root@centos yasu]# cp -p server.key /etc/pki/tls/private/
[root@centos yasu]# ls -l /etc/pki/tls/certs/ /etc/pki/tls/private/
/etc/pki/tls/certs/:
合計 472
-rw-r–r– 1 root root 2240 1月 9 08:40 Makefile
-rw-r–r– 1 root root 441017 1月 9 08:40 ca-bundle.crt
-rw——- 1 root root 1444 2月 3 23:11 localhost.crt
-rwxr-xr-x 1 root root 610 1月 9 08:40 make-dummy-cert
-r——– 1 root root 3050 3月 17 16:51 server.cer

/etc/pki/tls/private/:
合計 16
-rw——- 1 root root 891 2月 3 23:11 localhost.key
-r——– 1 root root 891 3月 17 16:46 server.key

[root@centos yasu]# vi /etc/sysconfig/iptables
viエディタが起動するので設定ファイルを変更します。
# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Firewall-1-INPUT – [0:0]
-A INPUT -j RH-Firewall-1-INPUT
-A FORWARD -j RH-Firewall-1-INPUT
-A RH-Firewall-1-INPUT -i lo -j ACCEPT
-A RH-Firewall-1-INPUT -p icmp –icmp-type any -j ACCEPT
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp –dport 5353 -d 224.0.0.251 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp -m udp –dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp –dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state ESTABLISHED,RELATED -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 22 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 53 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m udp -p udp –dport 53 -j ACCEPT
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 80 -j ACCEPT
下記1行を追加してTCPの443番ポート(https)を開放します
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 443 -j ACCEPT
-A RH-Firewall-1-INPUT -j REJECT –reject-with icmp-host-prohibited
COMMIT

内容を保存しviエディタを終了します

設定内容を反映します
[root@centos ~]# /etc/rc.d/init.d/iptables restart
ファイアウォールルールを適用中: [ OK ]
チェインポリシーを ACCEPT に設定中filter [ OK ]
iptables モジュールを取り外し中 [ OK ]
iptables ファイアウォールルールを適用中: [ OK ]
iptables モジュールを読み込み中ip_conntrack_netbios_ns [ OK ]

Apacheを再起動してSSLの設定を反映させます
[root@centos yasu]# /etc/rc.d/init.d/httpd restart
httpd を停止中: [ OK ]
httpd を起動中: [ OK ]

　cd \OpenSSL\bin\PEM\yasu
　openssl genrsa -out .\cakey.pem 1024
　Loading ’screen’ into random state – done
　Generating RSA private key, 1024 bit long modulus
　……………………………………………………………++++++
　………………….++++++
　e is 65537 (0×10001)

　openssl req -new -x509 -config .\openssl.cfg -key .\cakey.pem -out .\cacert.pem
　Loading ’screen’ into random state – done
　You are about to be asked to enter information that will be incorporated
　into your certificate request.
　What you are about to enter is what is called a Distinguished Name or a DN.
　There are quite a few fields but you can leave some blank
　For some fields there will be a default value,
　If you enter ‘.’, the field will be left blank.
　—–
　Country Name (2 letter code) [AU]:JP
　State or Province Name (full name) [Some-State]:tokyo
　Locality Name (eg, city) []:koutouku
　Organization Name (eg, company) [Internet Widgits Pty Ltd]:yasu corp
　Organizational Unit Name (eg, section) []:system
　Common Name (eg, YOUR name) []:yasu
　Email Address []:

　openssl x509 -inform pem -outform der -in .\cacert.pem -out ca.der

　openssl ca -config .\openssl.cfg -days 3650 -out .\server_.cer -infiles .\certreq.txt
　Using configuration from .\openssl.cfg
　Loading ’screen’ into random state – done
　Check that the request matches the signature
　Signature ok
　Certificate Details:
　　　　Serial Number: 1 (0×1)
　　　　Validity
　　　　　　Not Before: Dec 26 08:08:00 2008 GMT
　　　　　　Not After : Dec 24 08:08:00 2018 GMT
　　　　Subject:
　　　　　　countryName = JP
　　　　　　stateOrProvinceName = tokyo
　　　　　　organizationName = yasu corp
　　　　　　organizationalUnitName = system
　　　　　　commonName = yasu
　　　　X509v3 extensions:
　　　　　　X509v3 Basic Constraints:
　　　　　　　　CA:FALSE
　　　　　　Netscape Comment:
　　　　　　　　OpenSSL Generated Certificate
　　　　　　X509v3 Subject Key Identifier:
　　　　　　　　86:2A:62:50:DE:54:CE:CA:72:5C:8B:55:ED:DA:FE:AD:0D:74:80:21
　　　　　　X509v3 Authority Key Identifier:
　　　　　　　　keyid:4D:0B:4E:34:FB:81:88:5F:40:9F:18:0A:26:EA:44:9F:F6:DD:B4:F6

　Certificate is to be certified until Dec 24 08:08:00 2018 GMT (3650 days)
　Sign the certificate? [y/n]:y

　1 out of 1 certificate requests certified, commit? [y/n]y
　Write out database with 1 new entries
　Data Base Updated

　openssl x509 -in .\server_.cer -out .\server.cer