Windows whois port

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WHOIS can show the Exchange Server administrator the name and phone number of the administrator at a destination host. There are also clients available for other platforms including Windows and Windows NT. The InterNIC registers secondary domain names only.

FQDNs include the higher-level domains associated with an Internet site. Only secondary domain names will return contact information. Networks that restrict access to the Internet through use of a firewall will not be able to use this method if tcp port 23 standard telnet port access is blocked.

Any telnet client from any host connected to the Internet should work. In telnet, connect to internic. If you cannot access the previous methods, but you have access to Internet mail, you can send your query to mailserv internic. Enter your command in the subject line or as the first line of the body of the message. All other text is ignored. ARIN sends your query to search. If you enter a search term that has a specific format, such as an IP address for example, or an ASN for example, AS , the search engine automatically performs a Whois query and brings you the results.

If the search engine thinks you are searching for information about subject areas on the web site for example, policy, services, or ARIN functions , it returns results from www.

You can search for a network using its IPv4 or IPv6 address. The search engine auto-detects that you are searching for an IP address and the network and related entities information for that IP address is returned. Due to the format of the search term, the search engine auto-detects that you are searching for a CIDR range and the network and related entities information for that CIDR range is returned. You can search for registration information pertaining to an ASN also called an autnum in routing templates.

If the number in your query is part of a block, information for that single ASN in the range is returned. Different registries may have different formats for ASN data. Entering the AS prefix is optional; for example, entering will automatically detect you are searching for an ASN matching this number and the information for the ASN is returned.

An entity represents information in a registry about organizations, corporations, governments, non-profits, clubs, individual persons, and informal groups of people. Handles typically have the following formats:. In this example, the search engine auto-detects that you are searching for a POC handle and returns information about the POC.

Choosing the Entity search filter searches Whois for only the entity that matches the search term you entered. Broadcast Services, Inc. Forward domain names are used when translating IP addresses into hostnames e. Some registrars will not provide information for all fields in the result; for example, if the registrar does not collect that particular data, or if privacy laws prevent the registrar from sharing that data.

Reverse domain information, along with pointer PTR records, is used to find the domain name associated with an IP address. If you are searching for the reverse domain associated with an IP address for example, 2. Forward Domain To find information for a forward domain name, the best practice is to enter it into the search field and choose the Domain filter.

The system may automatically detect some queries, but may miss others if Domain is not selected. For example, to search for the example. Under Search Filter , choose Domain , as shown in the following example:.