On Tuesday 12 August 2003 10:11 pm, Joćo Candido A. Milasch Filho wrote: > Hi! I sent this message b4 to newbie list, but I got absolute no answer. > I hope someone can help me here... > > Thus, I tried to run telnetd from xinetd, no success, tried to configure > the listening ports to the standard ports, and got no success. > Shorewall is not installed, iptables is empty, netstat shows listening > entries corresponding to the service I tried to run, but i can connect only > from my local machine. no friends could connect to my computer. > > Thanx all!!! > > ------------------------------------------------------------------------ > > Hello all, me again! > > As I sent before, I'm trying to use SSH server in home, to access on my > work. But as I said b4, my work firewall is blocking almost all outgoing > ports. So, i have to use SSH on the port 80. I successfully ran the daemon > on the port 80. To see that, I just netstat -pln, and saw an entry like > this: > LOCAL FOREIGN > 0.0.0.0:80 0.0.0.0:0 sshd blah blah > > Whel, with that, I knew it was listening correctly on the port 80. So to > try it out, I tried from the same machine I was running sshd to use ssh. So > I did: > > $ ssh -l my_user_name -p 80 127.0.0.1 > > It worked fine. Then I asked a friend to connect on my ssh server, and > told'im to do: > $ ssh -l usr_name -p 80 200.100.100.100 (where 200.100.100.100 was my > internet IP address on that time). But he couldn't connect. > > My firewall was disabled, I cleared out my lname (or something like that) > but my friend was still unable to connect on my ssh server. > > Anyone knows what can I do to figure out whats happening? > Is your isp blocking inbound traffic on port 80 to prevent web servers from running on the network? That would be a cruel catch 22 if it is true. Work only allows outbound on port 80, while home allows all inbound but port 80. -- /g
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