Configure FreeIPA server On CentOS 7 or RHEL 7
FreeIPA is an opensource identity management system for Linux/Unix environments which provides centralized account management and authentication, like Microsoft Active Directory or LDAP.
Identity: (machine, user, virtual machines, groups, authentication credentials)
Policy: (configuration settings, access control information)
Audit Trail: (events, logs, analysis)
The main goal of FreeIPA configuration is to provide a centrally managed Identity, Policy, and Audit system. It comes with Web UI and command line tools to perform administrative tasks.
FreeIPA server Configuration
Before configuring IPA server, we need to make sure that we follow some necessary steps. After completing these steps we may go ahead
Ensure /etc/resolv.conf has the below value.
Set the hostname:
hostnamectl set-hostname ipa.localhost.com
add a host entry on the server to resolve system hostname.
vi /etc/hosts 10.100.98.61 ipa.localhost.com ipa :wq!
Update yum repository
yum update -y
Install the required packages:
yum install -y ipa-server ipa-server-dns bind-dyndb-ldapsystemctl start named systemctl enable named
Now, install the IPA-server using the following command.
Answer all questions the installer prompt during the configuration.
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) * Configure DNS (bind) * Configure the KDC to enable PKINIT To accept the default shown in brackets, press the Enter key. WARNING: conflicting time&date synchronization service 'chronyd' will be disabled in favor of ntpd. Do you want to configure integrated DNS (BIND)? [no]: yes << To use integrated DNS with FreeIPA Enter the fully qualified domain name of the computer on which you're setting up server software. Using the form. Example: master.example.com. Server host name [ipa.localhost.com]: ipa.localhost.com << Enter the Hostname Warning: skipping DNS resolution of host ipa.localhost.com The domain name has been determined based on the host name. Please confirm the domain name [localhost.com]: localhost.com << Enter the domain name The kerberos protocol requires a Realm name to be defined. This is typically the domain name converted to uppercase. Please provide a realm name [LOCALHOST.COM]: LOCALHOST.COM << Type the REALM 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 password: **** << Enter Directory manager password Password (confirm): **** << Re-Enter Directory manager password The IPA server requires an administrative user, named 'admin'.This user is a regular system account used for IPA server administration. IPA admin password: **** << Enter IPA admin password - Used for Web UI and other administrative tasks Password (confirm): **** << Re-Enter IPA admin password Checking DNS domain localhost.com., please wait ... Do you want to configure DNS forwarders? [yes]: yes << Type yes to configure DNS forwarder Zone Following DNS servers are configured in /etc/resolv.conf: 127.0.0.1, 192.168.1.1 Do you want to configure these servers as DNS forwarders? [yes]: yes << Type yes to use the existing name server from resolv.conf file. All DNS servers from /etc/resolv.conf were added. You can enter additional addresses now: Enter an IP address for a DNS forwarder, or press Enter to skip: 184.108.40.206 << Add aditional name servers DNS forwarder 220.127.116.11 added. You may add another. Enter an IP address for a DNS forwarder, or press Enter to skip: Press Enter << Press Enter to complete adding name servers Checking DNS forwarders, please wait ... Do you want to search for missing reverse zones? [yes]: yes << Type yes to search for reverse zone Do you want to create a reverse zone for IP 10.100.98.61 [yes]: yes << Type yes to create PTR for IPA server Please specify the reverse zone name [98.199.10.in-addr.arpa.]: Press enter << to use the reverse zone name using reverse zone(s) 98.199.10.in-addr.arpa. The IPA Master Server will be configured with: Hostname: ipa.localhost.com IP address(es): 10.100.98.61 Domain name: localhost.com ealm name: IPA.LOCALHOST.COM BIND DNS Server will be configured to serve IPA domain with: Forwarders: 127.0.0.1, 10.100.98.61, 18.104.22.168 Forward policy: only Reverse zone(s): 98.100.10.in-addr.arpa. Continue to configure the system with these values? [no]: yes << Type yes to confirm the inputs The following operations may take some minutes to complete. Please wait until the prompt is returned. Configuring NTP daemon (ntpd) [1/4]: stopping ntpd [2/4]: writing configuration [3/4]: configuring ntpd to start on boot [4/4]: starting ntpdDone configuring NTP daemon (ntpd). Configuring directory server (dirsrv). Estimated time: 30 seconds [1/45]: creating directory server instance [2/45]: enabling ldapi [3/45]: configure autobind for root [4/45]: stopping directory server [5/45]: updating configuration in dse.ldif [6/45]: starting directory server [7/45]: adding default schema [8/45]: enabling memberof plugin [9/45]: enabling winsync plugin [10/45]: configuring replication version plugin [11/45]: enabling IPA enrollment plugin [12/45]: configuring uniqueness plugin [13/45]: configuring uuid plugin [14/45]: configuring modrdn plugin [15/45]: configuring DNS plugin [16/45]: enabling entryUSN plugin [17/45]: configuring lockout plugin [18/45]: configuring topology plugin [19/45]: creating indices [20/45]: enabling referential integrity plugin [21/45]: configuring certmap.conf [22/45]: configure new location for managed entries [23/45]: configure dirsrv ccache [24/45]: enabling SASL mapping fallback [25/45]: restarting directory server [26/45]: adding sasl mappings to the directory [27/45]: adding default layout [28/45]: adding delegation layout [29/45]: creating container for managed entries [30/45]: configuring user private groups [31/45]: configuring netgroups from hostgroups [32/45]: creating default Sudo bind user [33/45]: creating default Auto Member layout [34/45]: adding range check plugin [35/45]: creating default HBAC rule allow_all [36/45]: adding entries for topology management [37/45]: initializing group membership [38/45]: adding master entry [39/45]: initializing domain level [40/45]: configuring Posix uid/gid generation [41/45]: adding replication acis [42/45]: activating sidgen plugin [43/45]: activating extdom plugin [44/45]: tuning directory server [45/45]: configuring directory to start on bootDone configuring directory server (dirsrv). Configuring Kerberos KDC (krb5kdc) [1/10]: adding kerberos container to the directory [2/10]: configuring KDC [3/10]: initialize kerberos container [4/10]: adding default ACIs [5/10]: creating a keytab for the directory [6/10]: creating a keytab for the machine [7/10]: adding the password extension to the directory [8/10]: creating anonymous principal [9/10]: starting the KDC [10/10]: configuring KDC to start on bootDone configuring Kerberos KDC (krb5kdc). Configuring kadmin [1/2]: starting kadmin [2/2]: configuring kadmin to start on bootDone configuring kadmin. Configuring certificate server (pki-tomcatd). Estimated time: 3 minutes [1/29]: configuring certificate server instance [2/29]: exporting Dogtag certificate store pin [3/29]: stopping certificate server instance to update CS.cfg [4/29]: backing up CS.cfg [5/29]: disabling nonces [6/29]: set up CRL publishing [7/29]: enable PKIX certificate path discovery and validation [8/29]: starting certificate server instance [9/29]: configure certmonger for renewals [10/29]: requesting RA certificate from CA [11/29]: setting up signing cert profile [12/29]: setting audit signing renewal to 2 years [13/29]: restarting certificate server [14/29]: publishing the CA certificate [15/29]: adding RA agent as a trusted user [16/29]: authorizing RA to modify profiles [17/29]: authorizing RA to manage lightweight CAs [18/29]: Ensure lightweight CAs container exists [19/29]: configure certificate renewals [20/29]: configure Server-Cert certificate renewal [21/29]: Configure HTTP to proxy connections [22/29]: restarting certificate server [23/29]: updating IPA configuration [24/29]: enabling CA instance [25/29]: migrating certificate profiles to LDAP [26/29]: importing IPA certificate profiles [27/29]: adding default CA ACL [28/29]: adding 'ipa' CA entry [29/29]: configuring certmonger renewal for lightweight CAs Done configuring certificate server (pki-tomcatd). Configuring directory server (dirsrv) [1/3]: configuring TLS for DS instance [2/3]: adding CA certificate entry [3/3]: restarting directory serverDone configuring directory server (dirsrv). Configuring ipa-otpd [1/2]: starting ipa-otpd [2/2]: configuring ipa-otpd to start on bootDone configuring ipa-otpd.Configuring ipa-custodia [1/5]: Generating ipa-custodia config file [2/5]: Making sure custodia container exists [3/5]: Generating ipa-custodia keys [4/5]: starting ipa-custodia [5/5]: configuring ipa-custodia to start on bootDone configuring ipa-custodia. Configuring the web interface (httpd) [1/22]: stopping httpd [2/22]: setting mod_nss port to 443 [3/22]: setting mod_nss cipher suite [4/22]: setting mod_nss protocol list to TLSv1.0 - TLSv1.2 [5/22]: setting mod_nss password file [6/22]: enabling mod_nss renegotiate [7/22]: disabling mod_nss OCSP [8/22]: adding URL rewriting rules [9/22]: configuring httpd [10/22]: setting up httpd keytab [11/22]: configuring Gssproxy [12/22]: setting up ssl [13/22]: configure certmonger for renewals [14/22]: importing CA certificates from LDAP [15/22]: publish CA cert [16/22]: clean up any existing httpd ccaches [17/22]: configuring SELinux for httpd [18/22]: create KDC proxy config [19/22]: enable KDC proxy [20/22]: starting httpd [21/22]: configuring httpd to start on boot [22/22]: enabling oddjobdDone configuring the web interface (httpd). Configuring Kerberos KDC (krb5kdc) [1/1]: installing X509 Certificate for PKINIT Done configuring Kerberos KDC (krb5kdc). Applying LDAP updatesUpgrading IPA: Estimated time: 1 minute 30 seconds [1/9]: stopping directory server [2/9]: saving configuration [3/9]: disabling listeners [4/9]: enabling DS global lock [5/9]: starting directory server [6/9]: upgrading server [7/9]: stopping directory server [8/9]: restoring configuration [9/9]: starting directory server Done. Restarting the KDCConfiguring DNS (named) [1/12]: generating rndc key file [2/12]: adding DNS container [3/12]: setting up our zone [4/12]: setting up reverse zone [5/12]: setting up our own record [6/12]: setting up records for other masters [7/12]: adding NS record to the zones [8/12]: setting up kerberos principal [9/12]: setting up named.conf [10/12]: setting up server configuration [11/12]: configuring named to start on boot [12/12]: changing resolv.conf to point to ourselves Done configuring DNS (named). Restarting the web server to pick up resolv.conf changes Configuring DNS key synchronization service (ipa-dnskeysyncd) [1/7]: checking status [2/7]: setting up bind-dyndb-ldap working directory [3/7]: setting up kerberos principal [4/7]: setting up SoftHSM [5/7]: adding DNSSEC containers [6/7]: creating replica keys [7/7]: configuring ipa-dnskeysyncd to start on boot Done configuring DNS key synchronization service (ipa-dnskeysyncd). Restarting ipa-dnskeysyncdRestarting named Updating DNS system records Configuring client side components Using existing certificate '/etc/ipa/ca.crt'. Client hostname: ipa.localhost.com ealm: LOCALHOST.COM DNS Domain: localhost.com IPA Server: ipa.localhost.com BaseDN: dc=localhost,dc=com Skipping synchronizing time with NTP server. New SSSD config will be created Configured sudoers in /etc/nsswitch.conf Configured /etc/sssd/sssd.conf trying https://ipa.localhost.com/ipa/json [try 1]: Forwarding 'schema' to json server 'https://ipa.localhost.com/ipa/json' trying https://ipa.localhost.com/ipa/session/json [try 1]: Forwarding 'ping' to json server 'https://ipa.localhost.com/ipa/session/json' [try 1]: Forwarding 'ca_is_enabled' to json server 'https://ipa.localhost.com/ipa/session/json'Systemwide CA database updated. Adding SSH public key from /etc/ssh/ssh_host_rsa_key.pub Adding SSH public key from /etc/ssh/ssh_host_ecdsa_key.pub Adding SSH public key from /etc/ssh/ssh_host_ed25519_key.pub [try 1]: Forwarding 'host_mod' to json server 'https://ipa.localhost.com/ipa/session/json'SSSD enabled Configured /etc/openldap/ldap.confConfigured /etc/ssh/ssh_configConfigured /etc/ssh/sshd_config Configuring localhost.com as NIS domain.Client configuration complete. The ipa-client-install command was successful ============================================================================== 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 * 53: bind UDP Ports: * 88, 464: kerberos * 53: bind * 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 certificates stored in /root/cacert.p12 These files are required to create replicas. The password for thesefiles is the Directory Manager password
configure the firewall to allow the required ports.
TCP Ports: * 80, 443: HTTP/HTTPS * 389, 636: LDAP/LDAPS * 88, 464: kerberos * 53: bind UDP Ports: * 88, 464: kerberos * 53: bind * 123: ntp
Example: firewall-cmd --permanent --add-port=53/tcp firewall-cmd --reload
Verify FreeIPA Server
If FreeIPA is working properly, the above command will prompt you for the IPA admin password. Enter the IPA admin password you set during the installation process and then press Enter.
After entering the password, you should get shell prompt.
Next, verify the server functionality by searching IPA user.
ipa user-find admin
-------------- 1 user matched -------------- User login: admin Last name: Administrator Home directory: /home/admin Login shell: /bin/bash Principal alias: [email protected] UID: 827000000 GID: 827000000 Account disabled: False ---------------------------- Number of entries returned 1 ----------------------------
Access FreeIPA web interface (Client Part)
http://ipa.localhost.com or access the Ip through browser
Note: you need to do a few steps on the client system.
- Add dns record on host file under /etc/hosts (linux) & C:\Windows\System32\drivers\etc (windows)
Entry: 10.100.98.61 ipa.localhost.com ipa
- Add DNS IP on the ethernet settings.
So, guys, Although this a basic overview of IPA server installation. But I have tried my best to simplify things about IPA server and client so that you can have a better understanding and user experience. Now it’s your turn to pay me back.
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