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FreeIPA サーバーの設定2015/03/22

各サーバー間でユーザーのアカウント情報を共有できるように FreeIPA サーバーを構築します。
[1] FreeIPA をインストールします。
[root@dlp ~]#
yum -y install ipa-server bind bind-dyndb-ldap
[2] FreeIPA をセットアップします。
[root@dlp ~]#
ipa-server-install --setup-dns

The log file for this installation can be found in /var/log/ipaserver-install.log
This program will set up the IPA Server.

This includes:
  * Configure a stand-alone CA (dogtag) for certificate management
  * Configure the Network Time Daemon (ntpd)
  * Create and configure an instance of Directory Server
  * Create and configure a Kerberos Key Distribution Center (KDC)
  * Configure Apache (httpd)

To accept the default shown in brackets, press the Enter key.

# DNS を設定する (BIND の既存設定が上書きされる)

Existing BIND configuration detected, overwrite? [no]:

Enter the fully qualified domain name of the computer
on which you're setting up server software. Using the form
Example: master.example.com.

# ホスト名を確認して Enter

Server host name [dlp.srv.world]:

The domain name has been determined based on the host name.

# ドメイン名を確認して Enter

Please confirm the domain name [srv.world]:

The kerberos protocol requires a Realm name to be defined.
This is typically the domain name converted to uppercase.

# realm 名を確認、または変更して Enter

Please provide a realm name [SRV.WORLD]:
Certain directory server operations require an administrative user.
This user is referred to as the Directory Manager and has full access
to the Directory for system management tasks and will be added to the
instance of directory server created for IPA.
The password must be at least 8 characters long.

# Directory Manager のパスワード設定

Directory Manager password:
Password (confirm):

The IPA server requires an administrative user, named 'admin'.
This user is a regular system account used for IPA server administration.

# IPA admin のパスワード設定

IPA admin password:
Password (confirm):

# DNS forwarder を設定しない場合は no で応答

Do you want to configure DNS forwarders? [yes]:
Enter the IP address of DNS forwarder to use, or press Enter to finish.
# DNS forwarder を設定する場合、forwarder の IP を指定

Enter IP address for a DNS forwarder:

DNS forwarder added
# DNS forwarder を全て指定したら空Enter で応答

Enter IP address for a DNS forwarder:
# 逆引きゾーンを設定しないなら no で応答

Do you want to configure the reverse zone? [yes]:
# 逆引きゾーンを設定する場合のゾーン名

Please specify the reverse zone name [0.0.10.in-addr.arpa.]:

The IPA Master Server will be configured with:
Hostname:      dlp.srv.world
IP address:
Domain name:   srv.world
Realm name:    SRV.WORLD

BIND DNS server will be configured to serve IPA domain with:
Reverse zone:  0.0.10.in-addr.arpa.

# 設定を確認して yes で進む

Continue to configure the system with these values? [no]:

The following operations may take some minutes to complete.
Please wait until the prompt is returned.

Configuring NTP daemon (ntpd)
Setup complete

Next steps:
        1. You must make sure these network ports are open:
                TCP Ports:
                  * 80, 443: HTTP/HTTPS
                  * 389, 636: LDAP/LDAPS
                  * 88, 464: kerberos
                UDP Ports:
                  * 88, 464: kerberos
                  * 123: ntp

        2. You can now obtain a kerberos ticket using the command: 'kinit admin'
           This ticket will allow you to use the IPA tools (e.g., ipa user-add)
           and the web user interface.

Be sure to back up the CA certificate stored in /root/cacert.p12
This file is required to create replicas. The password for this
file is the Directory Manager password
[3] Kerberos チケットを取得し、デフォルトシェルを bash に変更しておきます。
[root@dlp ~]#
kinit admin

Password for admin@SRV.WORLD:    
# IPA admin パスワード

[root@dlp ~]#
# 確認

Ticket cache: FILE:/tmp/krb5cc_0
Default principal: admin@SRV.WORLD

Valid starting     Expires            Service principal
03/18/15 20:50:49  03/21/15 10:50:46  krbtgt/SRV.WORLD@SRV.WORLD

[root@dlp ~]#
ipa config-mod --defaultshell=/bin/bash

  Maximum username length: 32
  Home directory base: /home
  Default shell: /bin/bash
  Default users group: ipausers
  Default e-mail domain: srv.world
  Search time limit: 2
  Search size limit: 100
  User search fields: uid,givenname,sn,telephonenumber,ou,title
  Group search fields: cn,description
  Enable migration mode: FALSE
  Certificate Subject base: O=SRV.WORLD
  Password Expiration Notification (days): 4
  Password plugin features: AllowNThash
  SELinux user map order: guest_u:s0$xguest_u:s0$user_u:s0$staff_u:s0-s0:c0.c1023$unconfined_u:s0-s0:c0.c1023
  Default SELinux user: unconfined_u:s0-s0:c0.c1023
  Default PAC types: MS-PAC
[4] IPTables を有効にしている場合は、FreeIPA 関連ポートの許可が必要です。
「-I INPUT *」の箇所は自身の環境を確認して、適切な値に置き換えてください。
[root@dlp ~]#
for port in 50 80 88 389 443 464 636
    iptables -I INPUT 5 -p tcp -m state --state NEW -m tcp --dport $port -j ACCEPT

[root@dlp ~]#
for port in 53 88 123 464
    iptables -I INPUT 5 -p udp -m state --state NEW -m udp --dport $port -j ACCEPT