Re: Cannot connect to a website from debian linux box
On Mon, Jul 09, 2001 at 11:40:12PM -0400, Shaji N V wrote:
> I am facing a problem in connecting to a website from my linux box. I use
> dialup connection through my ISP or log on to my work(via dialup). The
> strange thing is that all machines at work are able to access the website
> (sun or windows), by my linux box cannot. If I boot the machine in windows,
> then I can connect to the website either thro work or ISP. The website is
> running https, so I try the following on the sun box:
>
> $ ping dcu.fi1.net
> ..
> ICMP Communication Administratively Prohibited from gateway
> vifi-gw.customer.ALTER.NET (157.130.98.254)
> for icmp from bethsun02 (172.25.200.51) to dcu.fi1.NET (206.150.183.205)
> ..
Likely, there's a firewall at work.
> If I do the same thing, from my linux box, it just does not respond.
Try traceroute. "man traceroute", "/usr/sbin/traceroute dcu.fi1.net"
> Now if I run "telnet dcu.fi1.net 443" on sun box, it connects. If I run the
> same thing on linux box, it does not.
Who knows what other settings apply to the sun system. Maybe telnet
on the sun somehow knows to use a proxy. Who knows. Maybe you're just
seeing some dns timeout wait. Perhaps you didn't configure the resolver
properly on your linux system, which may also explain why you're having
problems with both the isp and work dialups.
Try traceroute also on the sun and compare it with the output on linux.
Also run traceroute on linux when you're dialed in at the isp. Compare it
to the work dialin output. If traceroute also "hangs", run it with the
'-n' option and a numerical address for the target.
Cheers,
Joost
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