Click the Lookup tab, enter a domain name, then click Lookup. In your /Applications/Utilities folder, there’s a tool called Network Utility. You can find the numerical address for a website, if you want. When you click on a link, your browser sends a request to a Web server to load a page, but that request passes through a DNS server, which stores this information in huge databases containing every single domain recorded listed together with its numerical address.
This is what lets your computer find, keeping track of the fact that this domain name corresponds to an IP address of 70.42.185.230, and that numerical address is hosting Macworld’s webpages. The domain name can contain periods, hyphens, and alphanumeric characters.Do you ever wonder how you can click a link on a webpage and quickly zip to another page on a server halfway around the world? Or send an email message to aunt Alice or uncle Bob, using just their simple email addresses? All this depends on DNS, or the Domain Name System. The domain name must start and end with an alphanumeric character. Local hosts (the Security Gateway and network objects) are optionally appended with the domain name when DNS resolving is performed.ĭNS queries that do not contain a domain name are automatically appended with the domain name. There are two separate uses of the domain name: When selected, the local DNS servers resolves network object names to their IP addresses for internal network clients.Įnter a Domain Name. When DNS proxy is enabled, Resolve Network Objects controls if the DNS proxy treats the local network objects as a hosts list. To get IP addresses directly from the DNS servers defined above, clear the Enable DNS Proxy checkbox. This option is global and applies to all internal networks. If Internet Connection High Availability is enabled, the DNS servers switch automatically upon failover.īy default, the Check Point Appliance functions as your DNS proxy and provides DNS resolving services to internal hosts behind it (network objects). The gateway uses the DNS settings of the currently-active Internet connection (in case of static IP – the DNS manually provided under "Internet connection"-> Edit, in case of DHCP / Dialers – the DNS automatically provided by the ISP). The second option allows a more dynamic definition of DNS servers. In this case, all DNS requests from this branch office are directed to these DNS servers.
Use the first option if your DNS servers are located in the headquarters office. If you select Configure DNS servers, make sure that you enter valid IP addresses.
Select to define up to three DNS servers which is applied to all Internet connections or use the DNS configuration provided by the active Internet connection (Primary). In the Device > DNS page you can configure the DNS server configuration and define the domain name.
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