[1] FreeIPA – konfiguracja serwera

Skonfigurujemy teraz serwer FreeIPA, który jest częścią zintegrowanego systemu zarządzania bezpieczeństwem. Jeśli posiadasz RHEL to usługa ta nosi nazwę: [Red Hat Identity Management].

[1] Zainstaluj pakiety FreeIPA

[root@vlsr01 ~]# dnf module -y install idm:DL1/dns

2. Skonfiguruj serwer FreeIPA wraz z integrowaną usługą DNS.

# dodaj hosty
[root@vlsr01 ~]# mcedit /etc/host
192.168.100.101 vlsr01.zicher.lab vlsr01
192.168.100.102 vlsr02.zicher.lab vlsr02

# skonfiguruj FreeIPA
[root@vlsr01 ~]# 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.
Version 4.9.0

This includes:
* Configure a stand-alone CA (dogtag) for certificate management
* Configure the NTP client (chronyd)
* 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.

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.

Server host name [vlsr01.zicher.lab]: # naciśnij Enter

Warning: skipping DNS resolution of host vlsr01.zicher.lab
The domain name has been determined based on the host name.

Please confirm the domain name [zicher.lab]: # naciśnij Enter

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

Please provide a realm name [ZICHER.LAB]: # naciśnij Enter
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: # wpisz hasło
Password (confirm): # wpisz hasło

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

IPA admin password: # wpisz hasło
Password (confirm): # wpisz hasło

Checking DNS domain zicher.lab., please wait ...
Do you want to configure DNS forwarders? [yes]: # wciśnij Enter
Following DNS servers are configured in /etc/resolv.conf: 192.168.100.101, 1.1.1.1, 8.8.8.8
Do you want to configure these servers as DNS forwarders? [yes]: # wciśnij Enter
All detected DNS servers were added. You can enter additional addresses now:
Enter an IP address for a DNS forwarder, or press Enter to skip: # wciśnij Enter
DNS forwarders: 192.168.100.101, 1.1.1.1, 8.8.8.8
Checking DNS forwarders, please wait ...
Do you want to search for missing reverse zones? [yes]: # wciśnij Enter
Reverse record for IP address 192.168.100.101 already exists
Do you want to configure chrony with NTP server or pool address? [no]: # wciśnij Enter

The IPA Master Server will be configured with:
Hostname: vlsr01.zicher.lab
IP address(es): 192.168.100.101
Domain name: zicher.lab
Realm name: ZICHER.LAB

The CA will be configured with:
Subject DN: CN=Certificate Authority,O=ZICHER.LAB
Subject base: O=ZICHER.LAB
Chaining: self-signed

BIND DNS server will be configured to serve IPA domain with:
Forwarders: 192.168.100.101, 1.1.1.1, 8.8.8.8
Forward policy: only
Reverse zone(s): No reverse zone

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.

Adding [192.168.100.101 vlsr01.zicher.lab] to your /etc/hosts file
Disabled p11-kit-proxy
Synchronizing time
No SRV records of NTP servers found and no NTP server or pool address was provided.
Using default chrony configuration.
Attempting to sync time with chronyc.
Time synchronization was successful.
Configuring directory server (dirsrv). Estimated time: 30 seconds
[1/41]: creating directory server instance

==============================================================================
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 these
files is the Directory Manager password
The ipa-server-install command was successful

[3] Pobierz bilet/token Kerberos

[root@vlsr01 ~]# kinit admin
Password for admin@ZICHER.LAB: # wpisz hasło
[root@vlsr01 ~]# klist
Ticket cache: KCM:0
Default principal: admin@ZICHER.LAB

Valid starting Expires Service principal
05.02.2021 16:45:55 06.02.2021 16:45:45 krbtgt/ZICHER.LAB@ZICHER.LAB

[4] Jeśli Firewalld pracuje, zezwól na ruch na następujących portach/usługach.

[root@vlsr01 ~]# firewall-cmd --add-service={freeipa-ldap,freeipa-ldaps,dns,ntp} --permanent
[root@vlsr01 ~]# firewall-cmd –reload