SOGo

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関連記事

SOGo はリッチな AJAX ベースのウェブインターフェイスであり CalDAV, CardDAV GroupDAV などの標準プロトコルあるいは Microsoft ActiveSync を使用する様々なネイティブクライアントをサポートしています。この記事では SOGo を使用してグループウェアサーバーをセットアップする方法を説明します。

インストール

確認事項

SOGo では様々な方法でユーザー認証を行うことができます。Active Directory, OpenLDAP, MySQL/MariaDB, PostgreSQL などに限らず PAM があれば他の方法も使えるでしょう。この記事では集中的なユーザー管理データベースを使用して認証を行い、グローバルなアドレスリストを供給します (Samba/Active Directory ドメインコントローラの記事に従います)。

また、ユーザーのカレンダーやアドレス帳を保存するために mariadbpostgresql のどちらかを使用する必要があります。執筆時点では、SOGo ドキュメントは MariaDB (または MySQL) を推奨していますが、既に PostgreSQL をインストールしているのであれば、PostgreSQL を使うのも良いでしょう。他の SQL 実装もサポートされていますが、インストール方法は書かれていません。

最後に、SOGo には活発に開発されているバージョンが2つ存在します。SOGo-2.x はデスクトップクライアントと同じようなルックアンドフィールで、SOGo-3.x は Google の AngularJS による近代的なインターフェイスを備えています。インストールの手順や設定方法はどちらのバージョンでも同じです。

要件

必要なパッケージをインストールしてください: 公式リポジトリdovecot, mariadb, pigeonhole, postfix, postgresql, mysql-pythonapache または nginxAURlibwbxmlAUR, python2-sievelibAUR, sogoAUR (または sogo2AUR), sopeAUR (または sope2AUR)。

ウェブサーバーの初期設定

Apache

ウェブサーバーとして Apache を使用する場合、/etc/httpd/conf/httpd.conf に以下の行を追加して Apache に SOGo を追加してください:

...
# Include SOGo configuration
include conf/extra/SOGo.conf

/etc/httpd/conf/httpd.conf で mod_proxy_html を有効化してください:

# cp /etc/httpd/conf/httpd.conf{,.bak}
# sed /mod_proxy_html\.so/s/#// -i /etc/httpd/conf/httpd.conf

/etc/httpd/conf/extra/SOGo.conf ファイルを編集して以下の行を変更してください (mail.domain.tld は適当なドメインに置き換えてください):

...
## adjust the following to your configuration
  RequestHeader set "x-webobjects-server-port" "443"
  RequestHeader set "x-webobjects-server-name" "mail.domain.tld"
  RequestHeader set "x-webobjects-server-url" "https://mail.domain.tld"
...

nginx

ウェブサーバーとして nginx を使用する場合、443 で設定を行って、先に SSL 証明書を配置する必要があります。以下を /etc/nginx/nginx.conf に追加してください:

   server {
       listen 443;
       root /usr/lib/GNUstep/SOGo/WebServerResources/;
       server_name mail.domain.tld
       server_tokens off;
       client_max_body_size 100M;
       index  index.php index.html index.htm;
       autoindex off;
       ssl on;
       ssl_certificate path /path/to/your/certfile; #eg. /etc/ssl/certs/keyfile.crt
       ssl_certificate_key /path/to/your/keyfile; #eg /etc/ssl/private/keyfile.key
       ssl_ciphers 'AES128+EECDH:AES128+EDH:!aNULL';
       ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
       ssl_session_cache shared:SSL:10m;
       #optional ssl_stapling on;
       #optional ssl_stapling_verify on;
       #optional ssl_trusted_certificate /etc/ssl/private/cacert-stapeling.pem; 
       #optional resolver 8.8.4.4 8.8.8.8 valid=300s;
       #optionalresolver_timeout 10s;
       ssl_prefer_server_ciphers on;
       #optional ssl_dhparam /etc/ssl/certs/dhparam.pem;
       #optional add_header Strict-Transport-Security max-age=63072000;
       #optional add_header X-Frame-Options DENY;
       #optional add_header X-Content-Type-Options nosniff;
       location = / {
               rewrite ^ https://$server_name/SOGo;
               allow all;
       }
       location = /principals/ {
               rewrite ^ https://$server_name/SOGo/dav;
               allow all;
       }
       location ^~/SOGo {
               proxy_pass http://127.0.0.1:20000;
               proxy_redirect http://127.0.0.1:20000 default;
               # forward user's IP address
               proxy_set_header X-Real-IP $remote_addr;
               proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
               proxy_set_header Host $host;
               proxy_set_header x-webobjects-server-protocol HTTP/1.0;
               proxy_set_header x-webobjects-remote-host 127.0.0.1;
               proxy_set_header x-webobjects-server-name $server_name;
               proxy_set_header x-webobjects-server-url $scheme://$host;
               proxy_connect_timeout 90;
               proxy_send_timeout 90;
               proxy_read_timeout 90;
               proxy_buffer_size 4k;
               proxy_buffers 4 32k;
               proxy_busy_buffers_size 64k;
               proxy_temp_file_write_size 64k;
               client_max_body_size 50m;
               client_body_buffer_size 128k;
               break;
       }
       location /SOGo.woa/WebServerResources/ {
               alias /usr/lib/GNUstep/SOGo/WebServerResources/;
               allow all;
       }
       location /SOGo/WebServerResources/ {
               alias /usr/lib/GNUstep/SOGo/WebServerResources/;
               allow all;
       }
       location ^/SOGo/so/ControlPanel/Products/([^/]*)/Resources/(.*)$ {
               alias /usr/lib/GNUstep/SOGo/$1.SOGo/Resources/$2;
       }
       location ^/SOGo/so/ControlPanel/Products/[^/]*UI/Resources/.*\.(jpg|png|gif|css|js)$ {
               alias /usr/lib/GNUstep/SOGo/$1.SOGo/Resources/$2;
       }
   }

ウェブアクセスの起動とテスト

状態ディレクトリを作成してサービスを起動します:

# mkdir /var/run/sogo
# chown sogo:sogo /var/run/sogo
# chown sogo:sogo /etc/sogo/sogo.conf
# chmod 0644 /etc/sogo/sogo.conf

それから sogo サービスと httpd または nginx サービスを起動・有効化してください。

ブラウザを起動して Apache の場合は http://mail.domain.tld/SOGo/ を、nginx の場合は https://mail.domain.tld/SOGo/ を開いてください。ログインはまだ試してはいけません。接続してログイン画面が表示されることだけ確認してください。

SOGo データベースの設定

MySQL/MariaDB

MySQL データベースをまだ作成していない場合、以下のコマンドで作成してください:

# mysql_install_db --user=mysql --basedir=/usr/ --ldata=/var/lib/mysql/

mysqld を起動・有効化して、MySQL シェルに root ユーザーでログインしてください:

# mysql -u root

mysql のプロンプトで、以下のコマンドを入力します (SogoPW は安全なパスワードに置き換えてください):

CREATE DATABASE sogo;
CREATE USER 'sogo'@'localhost' IDENTIFIED BY 'SogoPW';
GRANT ALL PRIVILEGES ON `sogo`.* TO 'sogo'@'localhost' WITH GRANT OPTION;
FLUSH PRIVILEGES;

PostgreSQL の設定から移行する

以前に PostgreSQL を使っていた場合、sogo-tool を使ってユーザーデータを MySQL/MariaDB に移行してバックアップ・リストアすることができます。場合によりますが、大抵は上手く行きます。sogo データベースをフルバックアップするには:

# mkdir /root/sogo-backup
# sogo-tool backup /root/sogo-backup ALL

sogo デーモンを停止して、(他の目的で使っていない場合) postgresql を停止し、sogo を再設定してください (/etc/sogo/sogo.conf)。sogo ユーザーと sogo データベースの両方を使用してパスの最後の部分は変えないでおきます (下の例を参照)。

ユーザーデータを全てリストアするには、以下のコマンドを実行:

# for user in `ls -d /root/sogo-backup/*`
  do
      sogo-tool restore -f /root/sogo-backup $(basename $user)
  done

sogo を再起動したら MySQL/MariaDB を使用することができます。

PostgreSQL

MySQL/MariaDB ではなく PostgreSQL を使用する場合、古いインストール手順が役に立ちます。新規インストールする場合、sogo/openchange のデータを保存するのには MySQL/MariaDB を使うことを推奨します。

デフォルトデータベースを初期化して PostgreSQL を起動 (en_US.UTF-8 は適当なロケールに置き換えてください):

# mkdir -p /var/lib/postgres/data
# chown -R postgres:postgres /var/lib/postgres
# su - postgres -c "initdb --locale en_US.UTF-8 -D '/var/lib/postgres/data'"

そして postgresql サービスを起動・有効化します。

PostgreSQL で sogo ユーザーと sogo データベースを作成してください (sogo ユーザーのパスワードは強固なものではなくてかまいません、単に "sogo" で十分です。これは一時的なパスワードであり後で変更します):

# su - postgres
$ createuser --no-superuser --no-createdb --no-createrole --encrypted --pwprompt sogo
$ createdb -O sogo sogo

openchange DB のアクセス設定を編集:

# cp /var/lib/postgres/data/pg_hba.conf{,.bak}
# sed \
      's/D$/D\n\n#Configuration for OpenChange/' \
      -i /var/lib/postgres/data/pg_hba.conf
# sed \
      's/ange$/ange\nhost\topenchange\topenchange\t127.0.0.1\/32\t\tmd5/' \
      -i /var/lib/postgres/data/pg_hba.conf
# chown postgres:postgres /var/lib/postgres/data/pg_hba.conf{,.bak}

postgresql サービスを再起動してください。

ユーザーデータベースの設定

Active Directory

Active Directory を使ってユーザー認証を行う場合、Samba (Samba/Active Directory ドメインコントローラを参照) と Microsoft サーバーのどちらを使うのであれ、メールユーザーに必要な属性はデフォルトスキーマに最初から存在します。しかしながら、ユーザーは mailproxyAddresses 属性の両方を設定する必要があります。(smtp ではなく) SMTP という名前の proxyAddress 属性がデフォルトのメールアドレスです。内部ドメインと外部ドメインを使用する場合、SMTP をユーザーの外部アドレスに設定する必要があります。また、ユーザーの外部メールアドレスに mail 属性を設定する必要があります。

For Samba, you can use the ldbedit command to edit users. In this example, we'll modify the "Administrator" user and add aliases for postmaster, as well as internal and external email addresses. Replace vim in the following command with your preferred editor:

# LDB_MODULES_PATH="/usr/lib/samba/ldb" ldbedit -e vim -H /var/lib/samba/private/sam.ldb '(samaccountname=administrator)'

It is important to change both the mail attribute (this is what will be used for group expansion and global address list functionality), and the primary SMTP address. The smtp entries for proxyAddresses act as aliases. Add the following attributes (again, substitute appropriate values for internal.domain.tld and domain.tld):

...
mail: administrator@domain.tld
proxyAddresses: SMTP:administrator@domain.tld
proxyAddresses: smtp:postmaster@internal.domain.tld
proxyAddresses: smtp:postmaster@domain.tld
proxyAddresses: smtp:administrator@internal.domain.tld
...

If using Microsoft's Active Directory Users and Computers MMC snap-in to edit users, you'll need to enable "Show Advanced Features" from the Tools menu, and use the Attribute Editor tab.

Next, allow daemons to lookup users in the directory using LDAP. To do this, create an unprivileged user to use for LDAP lookups and optionally (recommended), set the password not to expire. If using Samba, execute the following commands. Be certain to set a suitably strong password:

# samba-tool user create ldap --description="Unprivileged user for LDAP lookups"
# samba-tool user setexpiry ldap --noexpiry

Finally, with Samba after 4.3.8 or 4.2.2, non-encrypted communication is disabled by default. Add the following configuration item to the [global] section of /etc/samba/smb.conf if you are not in a position to enable TLS or StartTLS:

        ldap server require strong auth = no

Dovecot の設定

基本設定

Create a very basic dovecot configuration:

# cp /etc/dovecot/dovecot.conf{.sample,}
# chown root:root /etc/dovecot/dovecot.conf

Then create the file /etc/dovecot/conf.d/local.conf with this content:

auth_mechanisms = plain login
disable_plaintext_auth = no
ssl = no
auth_username_format = %n
mail_location = /home/vmail/%Lu/Maildir

Enable and start dovecot.

ユーザーソース

Active Directory

Add the LDAP lookup configuation /etc/dovecot/conf.d/ldap.conf:

passdb ldap {
    driver = ldap
    args = /etc/dovecot/dovecot-ldap-passdb.conf
}
userdb ldap {
    driver = ldap
    args = /etc/dovecot/dovecot-ldap-userdb.conf
}

Set permissions:

# chmod 0644 /etc/dovecot/conf.d/ldap.conf
# chown root:root /etc/dovecot/conf.d/ldap.conf

Create the LDAP user and password configuration files (replace dc=internal,dc=domain,dc=tld, INTERNAL, and ldapPW with appropriate values). Remove the tls lines below if you haven't enabled the TLS configuration in your directory:

/etc/dovecot/dovecot-ldap-passdb.conf

hosts = localhost
auth_bind = yes
auth_bind_userdn = INTERNAL\%u
ldap_version = 3
tls = yes
base = dc=internal,dc=domain,dc=tld
scope = subtree
deref = never
pass_filter = (&(objectClass=person)(sAMAccountName=%u)(mail=*))

/etc/dovecot/dovecot-ldap-userdb.conf

hosts = localhost
dn = cn=ldap,cn=Users,dc=internal,dc=domain,dc=tld
dnpass = ldapPW
ldap_version = 3
tls = yes
base = cn=Users,dc=internal,dc=domain,dc=tld
user_attrs = =uid=5000,=gid=5000,=home=/home/vmail/%Lu,=mail=maildir:/home/vmail/%Lu/Maildir/
user_filter = (&(objectClass=person)(sAMAccountName=%u)(mail=*))

# Attributes and filter to get a list of all users
iterate_attrs = sAMAccountName=user
iterate_filter = (objectClass=person)

Set permissions:

# chown root:root /etc/dovecot/dovecot-ldap-{pass,user}db.conf
# chmod 0600 /etc/dovecot/dovecot-ldap-userdb.conf
# chmod 0644 /etc/dovecot/dovecot-ldap-passdb.conf

Create the SASL configuation /etc/dovecot/conf.d/sasl.conf:

service auth {
    unix_listener /var/spool/postfix/private/auth {
        mode = 0660
        user = postfix
        group = postfix
     }
}

Set permissions:

# chmod 0644 /etc/dovecot/conf.d/sasl.conf
# chown root:root /etc/dovecot/conf.d/sasl.conf

Reload Dovecot for the configuration to take effect:

# dovecot reload

Dovecot 認証のテスト

vmail ユーザーとグループを作成:

# groupadd -g 5000 vmail
# useradd -u 5000 -g vmail -s /usr/bin/nologin -d /home/vmail -m vmail
# chmod 750 /home/vmail

Open a telnet session and test (commands you enter are in bold, replace Administrator with a valid user account and UserPass with your real password):

telnet localhost 143
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=LOGIN] Dovecot ready.
a LOGIN Administrator UserPass
. OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND  URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS SPECIAL-USE BINARY MOVE] Logged in
a LOGOUT
* BYE Logging out
. OK Logout completed.
Connection closed by foreign host.

If anything other than OK is returned, go back and double check the configuration before continuing.

LMTP の設定

LMTP 設定ファイル /etc/dovecot/conf.d/lmtp.conf を作成:

mail_location = /home/vmail/%Lu/Maildir
service lmtp {
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    mode = 0600
    user = postfix
    group = postfix
  }
  user = vmail
}

protocol lmtp {
  postmaster_address = postmaster@domain.tld
}
# chmod 0644 /etc/dovecot/conf.d/lmtp.conf
# dovecot reload

TLS の設定

Put your certificates into place and create the TLS configuration file /etc/dovecot/conf.d/tls.conf (adjust paths and names as necessary). The keyfile should be owned by root with 0400 permissions. Any intermediate certificates should be concatenated after the public cert:

ssl = yes
ssl_cert = </etc/dovecot/ssl/host.domain.tld.pem
ssl_key = </etc/dovecot/ssl/host.domain.tld.key
# chmod 644 /etc/dovecot/conf.d/tls.conf
# chmod 600 /etc/dovecot/ssl/host.domain.tld.key

Remove the earlier explicitly defined values from local.conf and reload Dovecot:

# sed -e '/^ssl/d' -e '/disable_plaintext/s/no/yes/' \
      -i /etc/dovecot/conf.d/local.conf
# dovecot reload

Sieve の設定

Edit /etc/dovecot/dovecot.conf, uncomment the protocols line and add sieve as a service (remove pop3 as well if you do not intend to provide pop access):

protocols = imap lmtp sieve

Append the following to /etc/dovecot/conf.d/local.conf:

...
plugin {
   sieve_before = /home/vmail/sieve/spam-global.sieve
   sieve=/home/vmail/%Lu/dovecot.sieve
   sieve_dir=/home/vmail/%Lu/sieve
}

Create the global sieve directory:

mkdir -p /home/vmail/sieve/

Create the /home/vmail/sieve/spam-global.sieve file with the following contents:

require "fileinto";
if header :contains "X-Spam-Flag" "YES" {
  fileinto "Spam";
}

Set permissions on the directory (and file):

chown -R vmail:vmail /home/vmail/sieve

Modify the /etc/dovecot/conf.d/lmtp.conf file, adding the bold text below:

mail_location = /home/vmail/%Lu/Maildir
service lmtp {
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    mode = 0600
    user = postfix
    group = postfix
  }
  user = vmail
}

protocol lmtp {
  postmaster_address = postmaster@domain.tld
  mail_plugins = sieve
}

plugin {
  sieve_before = /home/vmail/sieve/spam-global.sieve
  sieve = /home/vmail/%Lu/dovecot.sieve
  sieve_dir = /home/vmail/%Lu/sieve
}

Reload dovecot

Postfix の設定

基本設定

Create a minimal Postfix configuration. Replace server.internal.domain.tld with a valid internal FQDN):

# postconf -e myhostname=server.internal.domain.tld
# postconf -e mydestination=localhost

If this server will be accessible from the internet, set the HELO/EHLO values to match the FQDN as seen from the internet (replace mail.domain.tld):

# postconf -e smtp_helo_name=mail.domain.tld
# postconf -e smtpd_banner='$smtp_helo_name ESMTP $mail_name'

Enable and start postfix.

Configure Postfix to use the vmail user and group:

# postconf -e virtual_minimum_uid=5000
# postconf -e virtual_uid_maps=static:5000
# postconf -e virtual_gid_maps=static:5000
# postconf -e virtual_mailbox_base=/home/vmail
# postfix reload

ユーザーソース

Active Directory

Now, create a LDAP alias and group maps for Postfix by pasting the following lines in the file /etc/postfix/ldap-alias.cf as root (replace dc=internal,dc=domain,dc=tld with appropriate values and ldapPW with the password of the ldap user). If TLS has not been configured for your directory, remove the start_tls line:

# Directory settings
server_host = 127.0.0.1
search_base = dc=internal,dc=domain,dc=tld
scope = sub
version = 3
start_tls = yes

# User Binding
bind = yes
bind_dn = cn=ldap,cn=users,dc=internal,dc=domain,dc=tld
bind_pw = ldapPW

# Filter
query_filter = (&(objectclass=person)(proxyAddresses=smtp:%s))
result_attribute = samaccountname
result_format = %s@internal.domain.tld

Create the group map:

# sed -e '/^query/d' \
      -e '/^result/d' \
      /etc/postfix/ldap-alias.cf > /etc/postfix/ldap-group.cf

Append the following lines to the newly created /etc/postfix/ldap-group.cf (in the #Filter secton):

query_filter = (&(objectclass=group)(mail=%s))
special_result_attribute = member
leaf_result_attribute = mail

Set the permissions:

# chmod 0600 /etc/postfix/ldap-{alias,group}.cf

Next test our lookup maps for users (groups have not yet been created) (substitute internal.domain.tld):

# postmap -q administrator@domain.tld ldap:/etc/postfix/ldap-alias.cf
# postmap -q administrator@internal.domain.tld ldap:/etc/postfix/ldap-alias.cf

The following output should be displayed for both commands:

Administrator@internal.domain.tld

Append any other hosted domains to the first command below, add the maps, and then reload the Postfix configuration (again replacing domain values):

# postconf -e virtual_mailbox_domains="domain.tld, internal.domain.tld"
# postconf -e virtual_alias_maps="ldap:/etc/postfix/ldap-alias.cf, ldap:/etc/postfix/ldap-group.cf"
# postfix reload

SASL の設定

Modify the default smtpd instance:

# postconf -e smtpd_sasl_type=dovecot
# postconf -e smtpd_sasl_path=private/auth
# postconf -e smtpd_sasl_auth_enable=yes
# postconf -e smtpd_relay_restrictions="permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination"

LMTP の設定

Use dovecot LMTP for delivery:

# postconf -e virtual_transport=lmtp:unix:private/dovecot-lmtp

TLS の設定

If you intend to use STARTTLS (as you should), enable the mail submission port and restrict to authenticated clients. Edit the following lines in /etc/postfix/master.cf:

submission inet n       -       n       -       -       smtpd
  -o syslog_name=postfix/submission
  -o smtpd_tls_security_level=encrypt
  -o smtpd_sasl_auth_enable=yes
  -o smtpd_sasl_type=dovecot
  -o smtpd_sasl_path=private/auth
  -o smtpd_sasl_security_options=noanonymous
  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
  -o smtpd_sender_login_maps=ldap:/etc/postfix/ldap-sender.cf
  -o smtpd_sender_restrictions=reject_sender_login_mismatch
  -o smtpd_recipient_restrictions=reject_non_fqdn_recipient,reject_unknown_recipient_domain,permit_sasl_authenticated,reject

Add SSL certificates. If you intend to put Postfix in a chroot jail (not discussed in this guide), these need to be placed in the Postfix configuration directory as opposed to the default /etc/ssl/private directory. Additionally, any intermediate certs should be concatenated with the public cert being first in the chain, and the key file should be owned by root with 0400 permission mode (replace mail.domain.tld):

# postconf -e smtpd_tls_key_file=/etc/postfix/ssl/mail.domain.tld.key
# postconf -e smtpd_tls_cert_file=/etc/postfix/ssl/mail.domain.tld.pem

Create a map to verify addresses to authenticated users /etc/postfix/ldap-sender.cf:

# Directory settings
server_host = localhost
search_base = dc=internal,dc=domain,dc=tld
version = 3
scope = sub

# User Binding
bind = yes
bind_dn = cn=ldap,cn=Users,dc=internal,dc=domain,dc=tld
bind_pw = ldapPW

# Filter
query_filter = (&(objectclass=person)(proxyAddresses=smtp:%s))
leaf_result_attribute = proxyAddresses
result_attribute = sAMAccountName

Set permissions:

# chown root:root /etc/postfix/ldap-sender.cf
# chmod 0640 /etc/postfix/ldap-sender.cf

If you would like to enable TLS on the default SMTP port, you should make it optional. If you make it required, you will not be able to receive mail from many hosts on the internet.

# postconf -e smtpd_tls_security_level=may

Reload postfix to apply the configuration changes:

# postfix reload

Postfix SASL 設定のテスト

Begin by getting a base64 encoded version of the username and password (replace Administrator with a valid username and UserPass with your real password):

$ echo -ne '\000Administrator\000UserPass' | openssl base64

You should receive output similar to the following:

AEFkbWluaXN0cmF0b3IAVXNlclBhc3M=

Now, open a telnet session and test (commands you enter are in bold, replace host.domain.tld with the real external FQDN and AEFkbWluaXN0cmF0b3IAVXNlclBhc3M= with the result of the previous command):

$ telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 host.domain.tld ESMTP Postfix
ehlo host.domain.tld
250-mail.lucasit.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
AUTH PLAIN AEFkbWluaXN0cmF0b3IAVXNlclBhc3M=
235 2.7.0 Authentication successful
quit
221 2.0.0 Bye
Connection closed by foreign host.

If anything other than a 235 message is returned, something is wrong and you should troubleshoot now rather than later.

SOGo の設定

基本設定

Edit the SOGo http configuration file, /etc/httpd/conf/extra/SOGo.conf, and comment out the following lines for testing (until SSL certs are in place and configuration is complete):

## adjust the following to your configuration
#  RequestHeader set "x-webobjects-server-port" "443"
#  RequestHeader set "x-webobjects-server-name" "yourhostname"
#  RequestHeader set "x-webobjects-server-url" "https://yourhostname"

Create a suitable SOGo configuration file in /etc/sogo/sogo.conf (replace items in bold with appropriate values). If using PostgreSQL, replace the "mysql:" lines with the appropriate "postgresql:" lines (as above):

{
    /* Database Configuration */
    SOGoProfileURL = "mysql://sogo:SogoPW@localhost/sogo/sogo_user_profile";
    OCSFolderInfoURL = "mysql://sogo:SogoPW@localhost/sogo/sogo_folder_info";
    OCSSessionsFolderURL = "mysql://sogo:SogoPW@localhost/sogo/sogo_sessions_folder";

    /* Mail */
    SOGoDraftsFolderName = Drafts;
    SOGoSentFolderName = Sent;
    SOGoTrashFolderName = Trash;
    SOGoIMAPServer = localhost;
    SOGoSieveServer = sieve://127.0.0.1:4190;
    SOGoSMTPServer = 127.0.0.1;
    SOGoMailDomain = internal.domain.tld;
    SOGoMailingMechanism = smtp;
    SOGoForceExternalLoginWithEmail = NO;
    SOGoMailSpoolPath = /var/spool/sogo;
    NGImap4ConnectionStringSeparator = "/";

    /* Notifications */
    SOGoAppointmentSendEMailNotifications = YES;
    SOGoACLsSendEMailNotifications = NO;
    SOGoFoldersSendEMailNotifications = NO;

    /* Authentication */
    SOGoPasswordChangeEnabled = YES;

    /* Web Interface */
    SOGoPageTitle = SOGo;
    SOGoVacationEnabled = YES;
    SOGoForwardEnabled = YES;
    SOGoSieveScriptsEnabled = YES;
    SOGoMailAuxiliaryUserAccountsEnabled = YES;
    SOGoTrustProxyAuthentication = NO;

    /* General */
    SOGoLanguage = English;
    SOGoTimeZone = America/Chicago;
    SOGoCalendarDefaultRoles = (
        PublicDAndTViewer,
        ConfidentialDAndTViewer
    );
    SOGoSuperUsernames = (administrator);
    SxVMemLimit = 384;
    //WOPidFile = "/var/run/sogo/sogo.pid";
    SOGoMemcachedHost = "127.0.0.1";

    /* Debug */
    //SOGoDebugRequests = YES;
    //SoDebugBaseURL = YES;
    //ImapDebugEnabled = YES;
    //LDAPDebugEnabled = YES;
    //PGDebugEnabled = YES;
    //MySQL4DebugEnabled = YES;
    //SOGoUIxDebugEnabled = YES;
    //WODontZipResponse = YES;
    //WOLogFile = /var/log/sogo/sogo.log;

}

Then issue the following commands:

# chown sogo:sogo /etc/sogo/sogo.conf
# chmod 0600 /etc/sogo/sogo.conf
# mkdir /var/spool/sogo
# chown sogo:sogo /var/spool/sogo
# chmod 700 /var/spool/sogo

SOGo ユーザーソース

Active Directory

Modify the /etc/sogo/sogo.conf file and add the LDAP user sources (and global address list). Place the following contents before the Web Interface section. If TLS is not configured for your Directory, exclude the "/????!StartTLS" strings at the end of the LDAP URIs:

    /* User Authentication */
    SOGoUserSources = (
     {
        id = directory;
        displayName = "Active Directory";
        canAuthenticate = YES;
        type = ldap;
        CNFieldName = cn;
        IDFieldName = sAMAccountName;
        UIDFieldName = sAMAccountName;
        baseDN = "dc=internal,dc=domain,dc=tld";
        bindDN = "cn=ldap,cn=Users,dc=internal,dc=domain,dc=tld";
        bindFields = (sAMAccountName);
        bindPassword = ldapPW;
        hostname = ldap://server.internal.domain.tld:389/????!StartTLS;
      },
      {
        id = sambaShared;
        displayName = "Shared Addressbook";
        canAuthenticate = NO;
        isAddressBook = YES;
        type = ldap;
        CNFieldName = cn;
        IDFieldName = mail;
        UIDFieldName = mail;
        hostname = ldap://server.internal.domain.tld:389/????!StartTLS;
        baseDN = "dc=internal,dc=domain,dc=tld";
        bindDN = "cn=ldap,cn=Users,dc=internal,dc=domain,dc=tld";
        bindPassword = ldapPW;
        filter = "((NOT isCriticalSystemObject='TRUE') AND (mail=\'*\') AND (NOT objectClass=contact))";
        //Uncomment to list local users in WebUI without searching (small directories only)
        //listRequiresDot = NO;
      },
      {
        id = sambaContacts;
        displayName = "Shared Contacts";
        canAuthenticate = NO;
        isAddressBook = YES;
        type = ldap;
        CNFieldName = cn;
        IDFieldName = mail;
        UIDFieldName = mail;
        hostname = ldap://server.internal.domain.tld:389/????!StartTLS;
        baseDN = "dc=internal,dc=domain,dc=tld";
        bindDN = "cn=ldap,cn=Users,dc=internal,dc=domain,dc=tld";
        bindPassword = ldapPW;
        filter = "((((objectClass=person) AND (objectClass=contact) AND ((uidNumber>=2000) OR (mail='*')))
                 AND (NOT isCriticalSystemObject='TRUE') AND (NOT showInAdvancedViewOnly='TRUE') AND (NOT uid=Guest))
                 OR (((objectClass=group) AND (gidNumber>=2000)) AND (NOT isCriticalSystemObject='TRUE') AND (NOT showInAdvancedViewOnly='TRUE')))";
        mapping = {
            displayname = ("cn");
        //Uncomment to list contacts in WebUI without searching (few contacts only)
        //listRequiresDot = NO;
        };
      }
    );

設定の完了

Now enable and start the memcached service and restart the sogo service. Test by visiting http://server.internal.domain.tld/SOGo/ .

ウェブサーバーの最終設定

Apache

If all is well with SOGo without SSL, go ahead and enable SSL in httpd if using Apache (modify paths and filenames as necessary):

# sed -e '/httpd-ssl.conf/s/#//' \
      -e '/modules\/mod_ssl.so/s/#//' \
      -e '/mod_socache_shmcb/s/#//' \
      -i /etc/httpd/conf/httpd.conf
# sed -e '/^SSLCertificateFile/s@/etc/httpd/conf/server.crt@/etc/httpd/ssl/mail.domain.tld.pem@' \
         -e '/^SSLCertificateKeyFile/s@/etc/httpd/conf/server.key@/etc/httpd/ssl/mail.domain.tld.key@' \
         -i /etc/httpd/conf/extra/httpd-ssl.conf

Now go ahead and edit the /etc/httpd/conf/extra/SOGo.conf file and uncomment the following lines, edit to suit your site:

## adjust the following to your configuration
RequestHeader set "x-webobjects-server-port" "443"
RequestHeader set "x-webobjects-server-name" "mail.domain.tld"
RequestHeader set "x-webobjects-server-url" "https://mail.domain.tld"

Restart httpd service for the changes to take effect.

Go ahead and go to the regular http page and it should redirect you to the https site.

nginx

Since the nginx configuration was already setup for SSL, nothing more need be done.

ActiveSync の設定

Apache

To add ActiveSync support, simply uncomment the following lines in /etc/httpd/conf/extra/SOGo.conf:

...
ProxyPass /Microsoft-Server-ActiveSync \
 http://127.0.0.1:20000/SOGo/Microsoft-Server-ActiveSync \
 retry=60 connectiontimeout=5 timeout=3600
...

This will result in extended locking delays if you have more than a handful of users, so some tuning is required. You may notice that the above line was changed from 360 seconds to 3600 seconds (or one hour). This is because EAS devices need to keep their HTTP connections open for very long times (up to one hour). Because of this, you will need to tell SOGo (see below) to honor that timeout.

nginx

Add the following to your server definition for SOGo in /etc/nginx/nginx.com:

...
        location ^~ /Microsoft-Server-ActiveSync {
                proxy_pass http://127.0.0.1:20000/SOGo/Microsoft-Server-ActiveSync;
                proxy_redirect http://127.0.0.1:20000/Microsoft-Server-ActiveSync /;
        }

        location ^~ /SOGo/Microsoft-Server-ActiveSync {
                proxy_pass http://127.0.0.1:20000/SOGo/Microsoft-Server-ActiveSync;
                proxy_redirect http://127.0.0.1:20000/SOGo/Microsoft-Server-ActiveSync /;
        }
...

Additional tuning may be required for the parameters in the SOGo section below (timeout, retry, and next host values, specifically).

SOGo

As stated above for the listed HTTP servers, some tuning is required to use EAS. While the timeouts below (59 minutes) are appropriate for the HTTP session timeout set above, the number of workers is dependent on the number of simultaneous EAS clients you must support. In short, you will always need more workers than EAS clients to allow start of another worker for push operations. Additionally, the sync interval will allow you to reduce the load on the server so that less delay is generated, and this dependent on the total number of clients. The SOGo configuration guide, available at http://sogo.nu/files/docs/SOGoInstallationGuide.pdf, lists two example configurations. The 100 user with 10 EAS users example was chosen for this article. Append the following lines to /etc/sogo/sogo.conf making sure that they are placed before the closing brace ("}") character:

  /* ActiveSync */
  WOWorkersCount = 15;
  SOGoMaximumPingInterval = 3540;
  SOGoMaximumSyncInterval = 3540;
  SOGoInternalSyncInterval = 30;