0

Is there a way to know if the connection to a host is made via an alias or using the direct host name itself? This is in Linux.

Basically I want to find out what are the connections made to my DB server host using the direct host name itself (and not an alias)

Thanks SK

user451398
  • 1
  • 1
    Connections are made via IP addresses not names. You have no visibility into what name the client resolved to an IP from the receiving end. If you want to know what names are being used, you need to look at the traffic on the client or on the DNS server (from the client). –  Jan 09 '18 at 20:24
  • Thanks for the response. Is there any command or log on the client machine or DNS server that I can use? Thanks much – user451398 Jan 11 '18 at 16:12

1 Answers1

0

Only if the application protocol (the Database client ) transmits that information ( eg. http/1.1 uses host-headers to identify multiple websites listening on the same IP address )

CGretski
  • 111
  • 2