Resolving A Domain Name To An Ip Address Dns Timeout. When DNS queries are forwarded to name servers for resolution some memory space is held for the corresponding DNS query until an appropriate response is received or until there is timeout. Resolving host or domain name is a process of mapping a text to a unique number in order to connect and get the required information from the web server.
It is undesirable because it becomes an open DNS server which would be vulnerable to DNS amplification attack. The reason behind the choice of DNS is that it is highly scalable and it is an internet standard. Add prepend domain-name-servers 127001 to etcdhclient-eth0conf.
Find some mismatched outdated or duplicated records.
If the connection to the DNS name fails but the connection to the IP address succeeds then you know that your issue has to do with DNS. DNS namespace is used internet wide while the Active Directory namespace is used across a private network. DNS server with IP address 19216801 is configured with five forwarders 10001-10005. Unfortunately the DNS query using public IP outside internal network can also resolve external domain name.