I went through this with Cox cable. They're blocking port 80, at least on
the residential lines, so I set up a WebHop through Dyndns to redirect
traffic to port 18080. I haven't yet tried port 21, but I do know that port
22 is open for SSH (I use it daily) for the time being.
Eric
On 4/3/07, John Schember <
j5483@yahoo.com> wrote:
>
> One way you can check to see if your isp is blocking any ports is
> disable your filewall then use an online port scanner like Shields Up.
> Every port should show open except those blocked by your isp.
>
> John Schember
>
>
> On Tue, 2007-04-03 at 20:21 -0700, Jon M. Hanson wrote:
> > Joey Prestia wrote:
> > > I recently created a free dyndns dynamic account and am having
> problems
> > > accessing my computer I can ping my hostname linuxamd.homelinux.netand
> > > it has no packet loss as well as reports the correct ip address of my
> > > computer but from other locations I cant access it I can ssh into it
> but
> > > would like to run it as an ftp server what am I doing wrong I know ftp
> > > port 21 is forwarded on my linksys router. what do I need to do to
> have
> > > it come up when the address is typed in I'm not using any data of any
> > > importance as far as security is concerned until I learn exactly what
> I
> > > need to do to do this safely from my home.
> > >
> > One thing to consider (other than the huge security implications of
> > running an FTP server) is that your ISP may block incoming port 21. Most
> > residential ISPs forbid the running of servers on their network.
> >
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