top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

Which port does a DNS Server Use ?

+3 votes
391 views
Which port does a DNS Server Use ?
posted Dec 21, 2013 by Gaurav Sharma

Share this question
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

+1 vote

UDP - 53,
If not accepted then TCP- 53 for DNS queries.

answer Dec 21, 2013 by Nithin Kp
Similar Questions
+1 vote
DNS: Does the DNS response carry only IP address of server or it can include port also ?

I am running a web server not at standard port 80 then in this case how it can accessed by outsider/visitor without knowing the port number ?

+9 votes
Explain and mention standard port no's for DNS, SMTP, HTTP, FTP, Hub, Switch, Firewall, BOOTP, DHCP, SNMP?

Explain the following terms: DNS, SMTP, HTTP, FTP, Hub, Switch, Firewall, BOOTP, DHCP, SNMP?
Please mention the standard port numbers for these terms.

+1 vote
DNS query against a specific server using python

socket.gethostbyname sends the DNS resolution query to the DNS server specified by the OS. Is there an easy way to send a query to a *different* server?

I see that twisted.names allows you to do this, but, having all of twisted as dependency to my project when all I need to do is a simple DNS query seems a bit extreme. I also found pydns, but that looks fairly outdated and unmaintained.

...