Understanding DNS - Beginners Guide to DNS

How to Setup a local DNS Caching Server on Linux? - Geekflare A caching DNS server works by performing all the DNS queries that your system makes and then saving, or caching, the results in memory. Once that the results are cached in memory any time that you make a duplicate request for a domain, the result will get served almost instantaneously from memory. network manager - How do I fix DNS resolving which doesn't It seems the DNS servers which I get by DHCP (LAN) are not used. I could temporary solve the problem by adding nameserver to /etc/resolv.conf. But then the intranet hosts still can not be resolved. When clicking on the Connection Information menu item on the network indicator, the Primary DNS and the Secondary DNS are set correctly. But

The DNS server ( answers to pings. So I was wondering if the problem could be in that DNS server. Is there some way, like telneting or similar, to check if a given DNS IP works as it must (this is: answering with a IP address when requested for a domain name)? For example, when testing a SSH server, a possible trick is:

DNS Config Under Linux. DNS usage on linux is done over a set of routines in the C library that provide access to the Internet Domain Name System (DNS). The resolver configuration file (resolv.conf) contains information that is read by the resolver routines the first time they are invoked by a process.In short each process requesting DNS will read /etc/resolv.conf over library. How-To Guide – Introduction to DNS – Linux Academy Nov 04, 2016 How to Setup a local DNS Caching Server on Linux? - Geekflare

Change DNS settings on Linux

Nov 04, 2016