In order to use nslookup, host or gethostbyname() then the target's name will need to be registered with DNS or statically defined in the hosts file on the machine running your program. Yes, you could connect to the target with SSH or some other application and query it directly, but for a generic solution you'll need some sort of DNS entry for it.

How to configure DNS Server in Linux Alternately You can also verify DNS server by nslookup command. Test also by pinging server from name . Configure Linux DNS clients. RHCE Exam question Dig Server.example.com, Resolve to successfully through DNS Where DNS server is 192.168.0.254. RHCE Exam question2. Your System is configured in 192.168.0.0/24 Network and your nameserver is 192 ubuntu - How do I get a linux terminal to show me the DNS if I type "hostname" at a command prompt all I get is "ubuntu01" I tried typing domainname and all I get is the output "(none)" which is confusing me considering I can type the hsotname of any computer on my network and it will append the DNS suffix of "solignis.local" to it just like it is supposed to. Change DNS settings on Linux - support.rackspace.com On most Linux operating systems, the DNS servers that the system uses for name resolution are defined in the /etc/resolv.conf file. That file should contain at least one nameserver line. Each nameserver line defines a DNS server. The name servers are prioritized in the order the system finds them in the file. Command-line to list DNS servers used by my system - Ask

Build your own DNS name server on Linux | Opensource.com

Get-DnsServer

How To Look Up DNS on a Linux and Unix Systems - nixCraft

Aug 21, 2019