How to find Port number of IP address

Question

We can find out IP address of a domain name or URL  But how to find out Port number on which a domain name is hosted

User · Answer

If it is a normal then the port number is always 80 and may be written as http://www.somewhere.com:80 Though you don't need to specify it as :80 is the default of every web browser.

If the site chose to use something else then they are intending to hide from anything not sent by a "friendly" or linked to. Those ones usually show with https and their port number is unknown and decided by their admin.

If you choose to runn a port scanner trying every number nn from say 10000 to 30000 in https://something.somewhere.com:nn Then your isp or their antivirus will probably notice and disconnect you.

User · Answer

domain   self env  ir config parameter   get param  web base url     I got the hostname and port number using this

User · Answer

The port is usually fixed  for DNS it s 53

User · Answer

Port numbers are defined by convention   HTTP servers generally listen on port 80  ssh servers listen on 22   But there are no requirements that they do

User · Answer

DNS server usually have a standard of ports used  But if it s different  you could try nmap and do a port scan like so    gt  nmap 127 0 0 1

User · Answer

Quite an old question  but might be helpful to somebody in need   If you know the url   1  open the chrome browser   2  open developer tools in chrome    3  Put the url in search bar and hit enter 4  look in network tab  you will see the ip and port both

User · Answer

Use of the netstat -a command will give you a list of connections to your system server where you are executing the command   For example it will display as below  where 35070 is the port number   TCP    10 144 0 159   52121      sd-s-fgh 35070   ESTABLISHED

User · Answer

Unfortunately the standard DNS A-record  domain name to IP address    used by web-browsers to locate web-servers does not include a port   number  Web-browsers use the URL protocol prefix  http     to   determine the port number  http   80  https   443  ftp   21  etc     unless the port number is specifically typed in the URL  for example    http   www simpledns com 5000    port 5000     Can I specify a TCP IP port number for my web-server in DNS   Other than the standard port 80

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