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Linux与云计算——第二阶段Linux服务器架设 第六章:目录Directory服务器架设—FreeIPA

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标签:freeipa 配置freeipa服务器   增加用户账户   配置freeipa客户端   基础配置   使用web图形化界面   freeipa replication   

Linux与云计算——第二阶段Linux服务器架设

第六章:目录Directory服务器架设—FreeIPA

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1 FreeIPA 配置FreeIPA服务器

Configure IPA Server to share users‘ account in your local network.

[1] Install FreeIPA.

[root@dlp ~]# yum -y install ipa-server ipa-server-dns bind bind-dyndb-ldap

[2] Setup FreeIPA Server.

[root@dlp ~]# vi /etc/hosts

# add own IP

 10.0.0.30   dlp.srv.world dlp

 

[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.

 

# setup DNS (existing BIND settings is over-written)

Existing BIND configuration detected, overwrite? [no]: yes

Enter the fully qualified domain name of the computer

on which you‘re setting up server software. Using the form

<hostname>.<domainname>

Example: master.example.com.

 

# confirm the hostname and Enter

Server host name [dlp.srv.world]:

 

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

 

# confirm the domain name and 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.

 

# confirm realm name and 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‘s password

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‘s password

IPA admin password:

Password (confirm):

 

# answer with yes or no for setting DNS forwarder

Do you want to configure DNS forwarders? [yes]:

Enter the IP address of DNS forwarder to use, or press Enter to finish.

# specify DNS forwarder‘s IP if you set DNS forwarder

Enter IP address for a DNS forwarder: 10.0.0.10

DNS forwarder 10.0.0.10 added

# Enter with empty if DNS forwarder is OK

Enter IP address for a DNS forwarder:

# answer with yes or no for setting reverse zone

Do you want to configure the reverse zone? [yes]:

# reverse zone name if you set reverse zone

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:    10.0.0.30

Domain name:   srv.world

Realm name:    SRV.WORLD

 

BIND DNS server will be configured to serve IPA domain with:

Forwarders:    10.0.0.10

Reverse zone:  0.0.10.in-addr.arpa.

 

# confirm settings and proceed with "yes"

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

 

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] Get Kerberos tickets and change default shell.

[root@dlp ~]# kinit admin

Password for admin@SRV.WORLD:# IPA admin password

[root@dlp ~]# klist # confirm

Ticket cache: KEYRING:persistent:0:0

Default principal: admin@SRV.WORLD

 

Valid starting       Expires              Service principal

03/21/2015 14:25:53  03/24/2015 14:25:50  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] If Firewalld is running, allow FreeIPA services.

[root@dlp ~]# firewall-cmd --add-service={ssh,dns,freeipa-ldap,freeipa-ldaps} --permanent

success

[root@dlp ~]# firewall-cmd --reload

Success

2 增加用户账户

Add User Accounts on FreeIPA Server.

[1] Add a user. The password set on here is required to change at initial login.

[root@dlp ~]# ipa user-add cent --first=CentOS --last=Linux --password

Password:# set password

Enter Password again to verify:

-----------------

Added user "cent"

-----------------

  User login: cent

  First name: CentOS

  Last name: Linux

  Full name: CentOS Linux

  Display name: CentOS Linux

  Initials: CL

  Home directory: /home/cent

  GECOS field: CentOS Linux

  Login shell: /bin/bash

  Kerberos principal: cent@SRV.WORLD

  Email address: cent@srv.world

  UID: 1219600001

  GID: 1219600001

  Password: True

  Kerberos keys available: True

 

# confirm

[root@dlp ~]# ipa user-find cent

--------------

1 user matched

--------------

  User login: cent

  First name: CentOS

  Last name: Linux

  Home directory: /home/cent

  Login shell: /bin/bash

  Email address: cent@srv.world

  UID: 1219600001

  GID: 1219600001

  Account disabled: False

  Password: True

  Kerberos keys available: True

----------------------------

Number of entries returned 1

[2] Add Existing local Users to IPA Directory ( set the same password with the username on this example, but it is required to change at initial login )

[root@dlp ~]# vi ipauser.sh

# extract local users who have 1000-9999 digit UID

# this is an example

#!/bin/bash

 

for line in `grep "x:[1-9][0-9][0-9][0-9]:" /etc/passwd`

do

   USER=`echo $line | cut -d: -f1`

   FIRST=`echo $line | cut -d: -f5 | awk {‘print $1‘}`

   LAST=`echo $line | cut -d: -f5 | awk {‘print $2‘}`

 

   [ ! "$FIRST" ] && FIRST=$USER

   [ ! "$LAST" ] && LAST=$USER

 

   echo $USER | ipa user-add $USER --first=$FIRST --last=$LAST --password

done

[root@dlp ~]# sh ipauser.sh

-------------------

Added user "redhat"

-------------------

  User login: redhat

  First name: redhat

  Last name: redhat

  Full name: redhat redhat

  Display name: redhat redhat

  Initials: rr

  Home directory: /home/redhat

  GECOS field: redhat redhat

  Login shell: /bin/bash

  Kerberos principal: redhat@SRV.WORLD

  Email address: redhat@srv.world

  UID: 1219600003

  GID: 1219600003

  Password: True

  Kerberos keys available: True

-------------------

Added user "ubuntu"

-------------------

  User login: ubuntu

  First name: ubuntu

  Last name: ubuntu

  Full name: ubuntu ubuntu

  Display name: ubuntu ubuntu

  Initials: uu

  Home directory: /home/ubuntu

  GECOS field: ubuntu ubuntu

  Login shell: /bin/bash

  Kerberos principal: ubuntu@SRV.WORLD

  Email address: ubuntu@srv.world

  UID: 1219600004

  GID: 1219600004

  Password: True

  Kerberos keys available: True

3 配置FreeIPA客户端

Configure FreeIPA Client to connect to FreeIPA Server.

[1] Add DNS entry for FreeIPA client on FreeIPA server first.

# ipa dnsrecord-add [domain name] [record name] [record type] [record]

[root@dlp ~]# ipa dnsrecord-add srv.world client01 --a-rec 10.0.0.51

  Record name: client01

  A record: 10.0.0.51

[2] Install Client tools on FreeIPA Client Host and change DNS settings.

[root@client01 ~]# yum -y install ipa-client

[root@client01 ~]# nmcli c modify eno16777736 ipv4.dns 10.0.0.30

[root@client01 ~]# nmcli c down eno16777736; nmcli c up eno16777736

[3] Setup as a FreeIPA Client. Sync time with FreeIPA server before it.

[root@client01 ~]# ipa-client-install

Discovery was successful!

Hostname: client01.srv.world

Realm: SRV.WORLD

DNS Domain: srv.world

IPA Server: dlp.srv.world

BaseDN: dc=srv,dc=world

 

# confirm settings and proceed with "yes"

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

# answer with admin

User authorized to enroll computers: admin

Synchronizing time with KDC...

Unable to sync time with IPA NTP server, assuming the time is in sync. Please check that 123 UDP port is opened.

Password for admin@SRV.WORLD:

Successfully retrieved CA cert

    Subject:     CN=Certificate Authority,O=SRV.WORLD

    Issuer:      CN=Certificate Authority,O=SRV.WORLD

    Valid From:  Fri Mar 20 01:42:15 2015 UTC

    Valid Until: Tue Mar 20 01:42:15 2035 UTC

 

Enrolled in IPA realm SRV.WORLD

.....

.....

Configured /etc/ssh/ssh_config

Configured /etc/ssh/sshd_config

Client configuration complete.

 

# configure mkhomedir if you need ( homedirs of users are created at inital login )

[root@client01 ~]# authconfig --enablemkhomedir --update

getsebool: SELinux is disabled

[root@client01 ~]# exit

logout

CentOS Linux 7 (Core)

Kernel 3.10.0-123.20.1.el7.x86_64 on an x86_64

client01 login: redhat # IPA user

Password: # password

Password expired. Change your password now.   # required to change the password when initial login

Current Password: # current password

New password: # new password

Retype new password:

Creating home directory for redhat.

[redhat@client01 ~]$ # just logined

4 基础配置

[1] Add a FreeIPA user account.

[root@dlp ~]# ipa user-add cent --first=CentOS --last=Linux --password

Password:

Enter Password again to verify:

-----------------

Added user "cent"

-----------------

  User login: cent

  First name: CentOS

  Last name: Linux

  Full name: CentOS Linux

  Display name: CentOS Linux

  Initials: CL

  Home directory: /home/cent

  GECOS field: CentOS Linux

  Login shell: /bin/bash

  Kerberos principal: cent@SRV.WORLD

  Email address: cent@srv.world

  UID: 1781800001

  GID: 1781800001

  Password: True

  Kerberos keys available: True

[2] Lock or unlock a FreeIPA user.

[root@dlp ~]# ipa user-disable cent

----------------------------

Disabled user account "cent"

----------------------------

[root@dlp ~]# ipa user-enable cent

---------------------------

Enabled user account "cent"

---------------------------

[3] Search a FreeIPA user.

[root@dlp ~]# ipa user-find cent

--------------

1 user matched

--------------

  User login: cent

  First name: CentOS

  Last name: Linux

  Home directory: /home/cent

  Login shell: /bin/bash

  Email address: cent@srv.world

  UID: 1781800001

  GID: 1781800001

  Account disabled: False

  Password: True

  Kerberos keys available: True

----------------------------

Number of entries returned 1

----------------------------

 

[root@dlp ~]# ipa user-show --raw cent

  uid: cent

  givenname: CentOS

  sn: Linux

  homedirectory: /home/cent

  loginshell: /bin/bash

  mail: cent@srv.world

  uidnumber: 1781800001

  gidnumber: 1781800001

  nsaccountlock: False

  has_password: True

  has_keytab: True

[4] Delete a FreeIPA user.

[root@dlp ~]# ipa user-del cent

-------------------

Deleted user "cent"

-------------------

[5] Add a FreeIPA group.

[root@dlp ~]# ipa group-add --desc=‘Development Group‘ development

-------------------------

Added group "development"

-------------------------

  Group name: development

  Description: Development Group

  GID: 1781800006

[6] Add members in a FreeIPA group.

[root@dlp ~]# ipa group-add-member --users=redhat,ubuntu development

  Group name: development

  Description: Development Group

  GID: 1781800006

  Member users: redhat, ubuntu

-------------------------

Number of members added 2

-------------------------

[7] Add a group in a FreeIPA group.

[root@dlp ~]# ipa group-add-member --groups=development hiroshima

  Group name: hiroshima

  Description: State Group

  GID: 1781800007

  Member groups: development

-------------------------

Number of members added 1

-------------------------

[8] Search a FreeIPA group.

[root@dlp ~]# ipa group-find development

---------------

1 group matched

---------------

  Group name: development

  Description: Development Group

  GID: 1781800006

  Member users: redhat, ubuntu

  Member of groups: hiroshima

----------------------------

Number of entries returned 1

----------------------------

[9] Delete a FreeIPA group.

[root@dlp ~]# ipa group-del hiroshima

-------------------------

Deleted group "hiroshima"

-------------------------

5 使用WEB图形化界面

It‘s possible to operate FreeIPA Server on Web Management Console.

[1] Start Web browser on any Client on the same network of FreeIPA Server and access to "https://(FreeIPA server‘s hostname or IP address)/", then, login form to IPA server is shown like follows. Login with a FreeIPA user. This example use admin user like follows.

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[2] Just logined noramlly. It‘s possible to operate FreeIPA server on GUI easily.

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6 FreeIPA Replication

Configure FreeIPA Replication.

[1] Install FreeIPA server‘s tools on the Replica Host and change DNS settings.

 

[root@repl01 ~]# yum -y install ipa-server ipa-server-dns bind bind-dyndb-ldap

# change DNS to FreeIPA server

[root@repl01 ~]# nmcli c modify eno16777736 ipv4.dns 10.0.0.30

[root@repl01 ~]# nmcli c down eno16777736; nmcli c up eno16777736

[2] Add DNS entry for Replica Host on FreeIPA server.

# ipa dnsrecord-add [domain name] [record name] [record type] [record]

[root@dlp ~]# ipa dnsrecord-add srv.world repl01 --a-rec 10.0.0.61

  Record name: repl01

  A record: 10.0.0.61

 

[root@dlp ~]# ipa-replica-prepare repl01.srv.world --ip-address 10.0.0.61

Directory Manager (existing master) password:     # Directory Manager password

 

Preparing replica for repl01.srv.world from dlp.srv.world

Creating SSL certificate for the Directory Server

Creating SSL certificate for the dogtag Directory Server

Creating SSL certificate for the Web Server

Exporting RA certificate

Copying additional files

Finalizing configuration

Packaging replica information into /var/lib/ipa/replica-info-repl01.srv.world.gpg

Adding DNS records for repl01.srv.world

Using reverse zone 0.0.10.in-addr.arpa.

 

# transfer generated key to Replica Host

[root@dlp ~]# scp /var/lib/ipa/replica-info-repl01.srv.world.gpg root@repl01.srv.world:/var/lib/ipa/

root@repl01.srv.world‘s password:

replica-info-repl01.srv.world.gpg 100% 35KB 34.6KB/s 00:00

[3] On FreeIPA server, If Firewalld is running, allow FreeIPA replication service.

[root@dlp ~]# firewall-cmd --add-service=freeipa-replication --permanent

success

[root@dlp ~]# firewall-cmd --reload

Success

[4] On FreeIPA replication Host, If Firewalld is running, allow FreeIPA services.

[root@repl01 ~]# firewall-cmd --add-service={ssh,dns,freeipa-ldap,freeipa-ldaps,freeipa-replication} --permanent

success

[root@repl01 ~]# firewall-cmd --reload

Success

[5] Setup as a Replica Server on FreeIPA Replica.

The following example set "--no-forwarders" for DNS, but if you set it, specify like "--forwarder=x.x.x.x".

[root@repl01 ~]# ipa-replica-install --setup-ca --setup-dns --no-forwarders /var/lib/ipa/replica-info-repl01.srv.world.gpg

Directory Manager (existing master) password:     # Directory Manager password

 

Run connection check to master

Check connection from replica to remote master ‘dlp.srv.world‘:

   Directory Service: Unsecure port (389): OK

   Directory Service: Secure port (636): OK

   Kerberos KDC: TCP (88): OK

   Kerberos Kpasswd: TCP (464): OK

   HTTP Server: Unsecure port (80): OK

   HTTP Server: Secure port (443): OK

   PKI-CA: Directory Service port (7389): OK

 

The following list of ports use UDP protocol and would need to be

checked manually:

   Kerberos KDC: UDP (88): SKIPPED

   Kerberos Kpasswd: UDP (464): SKIPPED

 

Connection from replica to master is OK.

Start listening on required ports for remote master check

Get credentials to log in to remote master

admin@SRV.WORLD password:     # admin password

 

Execute check on remote master

.....

.....

Global DNS configuration in LDAP server is empty

You can use ‘dnsconfig-mod‘ command to set global DNS options that

would override settings in local named.conf files

 

Restarting the web server

[6] Get Kerberos tickets on Replica Host and make sure it‘s possible to get datas on FreeIPA Directory. If possible, it‘s OK to setup replication settings.

For FreeIPA Clients, it‘s not necessarry to set additinal settings, Clients can continue to authenticate even if a Server is down.

[root@repl01 ~]# kinit admin

Password for admin@SRV.WORLD:     # admin password

[root@repl01 ~]# klist

Ticket cache: KEYRING:persistent:0:0

Default principal: admin@SRV.WORLD

 

Valid starting       Expires              Service principal

03/21/2015 15:13:38  03/24/2015 15:13:35  krbtgt/SRV.WORLD@SRV.WORLD

 

[root@repl01 ~]# ipa user-find

---------------

4 users matched

---------------

  User login: admin

  Last name: Administrator

  Home directory: /home/admin

  Login shell: /bin/bash

  UID: 1219600000

  GID: 1219600000

  Account disabled: False

  Password: True

  Kerberos keys available: True

 

  User login: cent

  First name: CentOS

  Last name: Linux

  Home directory: /home/cent

  Login shell: /bin/bash

  Email address: cent@srv.world

  UID: 1219600001

  GID: 1219600001

  Account disabled: False

  Password: True

  Kerberos keys available: True

.....

.....



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本文出自 “11830455” 博客,请务必保留此出处http://11840455.blog.51cto.com/11830455/1833069

Linux与云计算——第二阶段Linux服务器架设 第六章:目录Directory服务器架设—FreeIPA

标签:freeipa 配置freeipa服务器   增加用户账户   配置freeipa客户端   基础配置   使用web图形化界面   freeipa replication   

原文地址:http://11840455.blog.51cto.com/11830455/1833069

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