Configuring the DNS Client 611n If an alias is configured for a domain name on the DNS server, the device canresolve the alias into the IP address of the host.DNS Proxy Introduction to DNS proxyA DNS proxy forwards DNS requests and replies between DNS clients and a DNSserver.As shown in Figure 177, the DNS client sends DNS requests to the DNS proxy,which forwards the requests to the designated DNS server, and conveys the repliesfrom the DNS server to the client.The DNS proxy simplifies network management. When the DNS server address ischanged, you only need to change the configuration on the DNS proxy instead ofon each DNS client.Figure 177 DNS proxy networking applicationOperation of a DNS proxy1 A DNS client considers the DNS proxy as the DNS server, and sends a DNS requestto the DNS proxy, that is, the destination address of the request is the IP address ofthe DNS proxy.2 The DNS proxy searches the local static domain name resolution table afterreceiving the request. If the requested information exists in the table, the DNSproxy returns a DNS reply to the client.3 If the requested information does not exist in the static domain name resolutiontable, the DNS proxy sends the request to the designated DNS server for domainname resolution.4 After receiving a reply from the DNS server, the DNS proxy forwards the reply tothe DNS client.Configuring the DNSClientConfiguring StaticDomain NameResolutionFollow these steps to configure static domain name resolution:DNS clientDNS proxyIP networkDNS serverDNS clientDNS clientTo do... Use the command... RemarksEnter system view system-view --
