Host name configuration and interface configuration domain name configuration hostname configuration

Hostname configuration/etc/sysconfig/network hostname can not be changed to the form of the domain name

Shell>vim/etc/sysconfig/network

Networking=yes

Networking_ipv6=no

Hostname=mail1.gz.com

Local domain name resolution configuration is often used for testing, of course, in a system of their own internal use is also very common

Shell>vim/etc/hosts

192.168.2.10 mail1.gz.com

192.168.2.20 mail2.gz.com

DNS configuration file/etc/resolv

Shell>vim/etc/hosts

Frequently modified firewall policies

Iptables-f

Iptables-x

Shell>vim/etc/postfix/main.cf

Myhostname = mail.gz.com

MyDomain = gz.com

Inet_interfaces = All

Vim HA.CF

Bcast eth1 #心跳探测

212 node mail1.gz.com #节点位置 using host name (for reasons of hostname and host file)

213 Node Mail2.gz.com

Heartbeat-ldirectord is a bundle of heartbeat and LVS combined

Rear heartbeat detection and forwarding rules are configured on the top

Haresources configuration file

Heartbeat default use of the DR Node virtual interface address and Heartbeat-ldirectord combined configuration.

Mail1.gz.com 192.168.2.100/24/eth0 ldirectord::ldirectord.cf# with Director1 as the main node

In summary, the use of host names and local domain names in the configuration will be used. But the main is the local domain name, the hostname will only use the NetBIOS-based protocol or sharing settings. The host name and DNS domain name configuration are the same for insurance purposes.

Host name configuration and interface configuration domain name configuration hostname configuration