BigIron RX Series Configuration Guide 17353-1001986-01Configuring IP parameters 7Use the no form of the command to remove a domain name from the domain-list.Displaying the domain name listTo determine what domain names have been configured in the domain list, enter the followingcommand.BigIron RX(config)#show ip dns domain-listTotal number of entries : 3Primary Domain Name:Domain Name List:seq:4 eng.company.coseq:5 facilities.company.comseq:12. support.company.comSyntax: show ip dns domain-listVerifying domain name or IP addressYou can use the ip domain-lookup command to verify the host name for an IP address or the IPaddress for a host name. For example, if you have an IP address and you want to find out what hostname it resolves to, enter the following command.BigIron RX#ip domain-lookup 66.151.144.5Host Flag TTL/min Type Addressborder2.pc0-0-bbnet1.sje.pnap.net (TMP,OK) 720 IP 66.151.144.5You can also enter the following.BigIron RX#ip domain-lookup border2Host Flag TTL/min Type Addressborder2.pc0-0-bbnet1.sje.pnap.net (TMP,OK) 720 IP 66.151.144.5Syntax: ip domain-loopkup | Enter an IP address to obtain the host name. Enter the host name to obtain the IP address.The complete, qualified host name, along with its IP address and TTL value are displayed.Adding host names to the DNS cache tableDynamic cache entriesThe entries in a DNS cache table are used to resolve host names to IP addresses. When a clientinitiates a DNS query, the Brocade device checks the DNS cache table to see if the host name canbe resolved to any of the entries. If a match is found, the query is resolved. If a match is not found,the DNS resolver sends the query to the DNS servers. If the name is resolved, the complete,qualified host name and its IP address is added to the DNS cache table and the hosts’ IP addressis returned to the client.
