On Thu, 2004-11-18 at 09:34, Anne Wilson wrote: > On Wednesday 17 Nov 2004 20:34, Stephen K�hn wrote: > > On Wed, 2004-11-17 at 10:20, hackhound wrote: > > > My ISP assigns me a dynamic IP address. My DSL modem/router is > > > configured only to allow ports 22 (SSH) and 80 (HTTP) to passthough to > > > my ML9.2 box. I ran Nmap to confirm this, and it came back saying > > > that ports 23 (Telnet) and 80 were open. I then went to www.grc.com > > > and ran a port probe from there. It told me just what I was > > > expecting, ports 22 and 80. So, my question is, why is this disparity > > > happening? > > > > > > Thanks, > > > Hackhound > > > > There is probably a firewall setup on your router. Admin the router - > > check it out (you should be able to access the router via a browser, > > right?) > > > FWIW we have exactly the same situation, so my son-in-law tried to ftp in > from > work, but was denied access. I know we have it set to allow internal ftp but > not external, but I don't know how that would affect what can be seen by > these scanners. > > Anne
On the router itself you should (SHOULD) be able to setup port-forwarding - this allows a connection attempt at whatever port to be forwarded to a machine's IP on your internal LAN - for instance, on my router, I have port 80 forwarded to my server (192.168.0.15) - and I have telnet (23) forwarded to a workstation (192.168.0.243) - does that make the picture brighter? I can also access my server via ssh (set to port 22223) or vnc (port 5100) - by the same configuration scheme...but it also depends on yer router... -- stephen kuhn mobile: 0410-728-389 illawarra and regional new south wales ----------------------------------------------- GNU/Linux/OpenSource Solutions and Alternatives 100% Microsoft Free and no viruses Registered Linux User # 267497 Windows: Where do you want to go today? MacOS: Where do you want to be tomorrow? Linux: Are you coming or what? ----------------------------------------------- Psychoanalysis is that mental illness for which it regards itself a therapy. -- Karl Kraus Psychiatry is the care of the id by the odd. Show me a sane man and I will cure him for you. -- C.G. Jung
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