3Com Switch 8800 Configuration Guide Chapter 14 DNS Configuration14-2“3Com”. Then the system connects the input domain name with the suffix into“3Com.com” automatically to search. When the domain name suffix is used, if the inputdomain name does not include “.”, like “3Com”, the system regards it as a host nameand add a domain name suffix to search. After all the domain names are failed to besearched out in this way, the system finally searches with the primarily input domainname. If the input domain name does include “.”, like “www.3Com”, the systemsearches with it directly. The system adds each suffix to search one by one only afterthe search fails. If the input domain name contains a “.” in the final position, like“3Com.com.”, it indicates that the domain name suffix needs not to be added. Thesystem removes the last “.” from the input domain name and search with the remainingpart. Succeeded or not, the system returns to the originally input domain name. Put itmore specifically, if the last character of the input domain name is “.”, the system onlysearches according to characters before the “.” rather than matches the domain name.In this sense, the last “.” is also called “search terminator”.14.2 Configuring Static Domain Name ResolutionYou can use this command to map the host name to the host IP address. When you useapplications like Telnet, you can use the host name directly, and the system translates itinto the IP address, rather than the obscure IP address.Perform the following configuration in system view.Table 14-1 Configure host name and the corresponding IP addressOperation CommandConfigure host name and thecorresponding IP address ip host hostname ip-addressCancel host name and thecorresponding IP address undo ip host hostname [ ip-address ]Each host can have only one IP address. If you configure a host name more than once,then the IP address configured at last is effective.14.3 Configuring Dynamic Domain Name ResolutionDynamic domain name resolution configuration includes:z Enable/Disable Static Domain Name Resolutionz Configure the IP Address of Domain Name Serverz Configure Domain Name Suffix14.3.1 Enable/Disable Static Domain Name ResolutionYou can use the following command to enable dynamic domain name resolution.However, since dynamic domain name resolution may take some time, you can disable
