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  • I have installed xrdp on ubuntu 18.

  • xrdp by default listens to 3389 so that it can support Window RDP

  • When I run "netstat", it shows that the service is listing with tcp6 and IPV6 syntax (colon delimiters)

  • Windows remote desktop client resolves the host name to an IPV4 address

  • How can I configure xrdp service to listen using IPV4 protocol?

  • I cannot completely disable TCP/IP v6 because I do not have the authority and IPV6 is needed for other services. If I know the correct configuration changes for the xrdp service I can request those changes.

Rick
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  • See https://askubuntu.com/questions/1046057/disabling-ipv6-in-ubuntu-18-04-server – waltinator Jul 23 '18 at 01:16
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    Are you sure xrdp isn't accepting IPv4 connections? Many server programs accept incoming IPv4 connections on their IPv6 socket. – Sander Steffann Jul 23 '18 at 07:48
  • …in fact many applications that listen for incoming TCP connections don't care about the TCP/IP version of the underlying socket at all. This may just be an artefact of how `netstat` etc. list the socket. – David Foerster Jul 23 '18 at 16:31
  • @waltinator: OP has since clarified that this out of the question. – David Foerster Jul 23 '18 at 16:32
  • Thanks to all you wonderful people. Based on these comments I was able to RDP to another Ubuntu server and verify that--in fact--it does NOT matter that netstat shows tcp6. I will now look at the network security to see what problems there are. – Rick Jul 27 '18 at 00:53

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