On per-vm
#systemctl stop dhcpd
#systemctl disable dhcpd
#tzselect //time zone selection
[[email protected] ~]#yum -y install ntp
#vim /etc/ntp.conf //#server0,1,2,3,
restrict 192.168.85.0 mask 255.255.255.0 nomodify notrap
server asia.pool.ntp.org iburst
#systemctl restart ntpd
#systemctl enable ntpd
[[email protected] ~]#vim /etc/ntp.conf
server 192.168.85.100 iburst
#ntpq -p //Standard NTP query program
; #chrony(graphical)
remote refid st t when poll reach delay offset jitter
==============================================================================
192.168.85.100 .INIT. 16 u - 64 0 0.000 0.000 0.000
#date
#timedatectl
----------------------------------------------------------------------
#yum -y install ipa-server ipa-server-dns bind bind-dyndb-ldap
#echo "192.168.85.100 workstation.example.com" >> /etc/hosts
#ipa-server-install --setup-dns
; The IPA Master server will be configured with :
; Hostname: workstation.example.com
; IP address(es): 192.168.85.100
; Domain name: example.com
; Realm name: EXAMPLE.COM
;
; BIND DNS server will be configured to serve IPA domain with:
; Forwarder: 8.8.8.8
; Reverse zone(s): No reverse zone
===============================================================
; 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
#kinit admin
#klist
#ipa user-add ruiyung --firt=Yun --last=Rui --password
password:
#ipa user-find ruiyung
#ipa dnsrecord-add example.com server1 --a-rec 192.168.85.201 ????
#ipa dnsrecord-add example.com server2 --a-rec 192.168.85.202 ????
#ipa dnsrecord-add example.com database --a-rec 192.168.85.203 ????
MAIL-----------------------------A record
====================================================================
On server1,server2,database.
#nmcli c m "System eno16777736" ipv4.dns 192.168.85.100
#systemctl restart network
#ipa-client-install
#authconfig --enablemkhomedir --update