Re: connect directly to another computer bypassing firewalls using a third server

2013-04-22 Thread Rick Thomas
On Apr 22, 2013, at 4:55 AM, Celejar wrote: Yes: http://m19s28.dyndns.org/iblech/nat-traverse/#technique General discussion: http://www.h-online.com/security/features/How-Skype-Co-get-round-firewalls-747197.html Celejar Thanks! Interesting stuff... Rick -- To UNSUBSCRIBE, email to debi

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-22 Thread Celejar
On Sun, 21 Apr 2013 23:59:00 -0700 Rick Thomas wrote: > Alberto, > > What you want to do is possible. In particular, skype and bittorrent do it. > > As I understand it, they make use of a server with a public IP address. I'm > not going to get it exactly right, but the general idea is this:

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-21 Thread Rick Thomas
Alberto, What you want to do is possible. In particular, skype and bittorrent do it. As I understand it, they make use of a server with a public IP address. I'm not going to get it exactly right, but the general idea is this: Two clients, A and B, both behind NAT firewalls. Server, S, with a

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-19 Thread Kevin Chadwick
> That looks like you have to somehow be logged into both hosts and run > nat-traverse on each. But it looks interesting. Firewalls can track and block UDP (create state) even if it is a stateless protocol too, so you may have to have control of the gateways too. -- __

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-19 Thread alberto fuentes
On Fri, Apr 19, 2013 at 10:29 PM, alberto fuentes wrote: > Actually I got the idea from filetea [0] > I just checked it out. Its less magical than I thought. It *does* use the server to route all packets :(

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-19 Thread alberto fuentes
On Fri, Apr 19, 2013 at 6:56 PM, Bob Proulx wrote: > Since alberto said that both A and B know about Server then NAT > traversal shouldn't be needed. > Actually I want to connect from A to B directly, so nat traversal seems nice, but I cant try it right now... when I have the machine back up I

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-19 Thread alberto fuentes
On Fri, Apr 19, 2013 at 6:32 PM, Bob Proulx wrote: > alberto fuentes wrote: > > A (me) -> Server (overseas) -> B (arbitrary computer in my city) > > > > To make it a little more clear. Both computer A and B know about Server. > > Right now I use openvpn to bring all the computers together into th

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-19 Thread Lars Nooden
On Fri, 19 Apr 2013, green wrote: > Lars Nooden wrote at 2013-04-19 10:35 -0500: > > On Fri, Apr 19, 2013 at 5:00 PM, alberto fuentes wrote: > > > A (me) -> Server (overseas) -> B (arbitrary computer in my city) > > > > To make a direct connection between A and B with ssh, you need to have at >

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-19 Thread Bob Proulx
green wrote: > Lars Nooden wrote: > > alberto fuentes wrote: > > > A (me) -> Server (overseas) -> B (arbitrary computer in my city) > > > > To make a direct connection between A and B with ssh, you need to have at > > least on of them be publicly available even if the other is blocked behind > >

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-19 Thread green
Lars Nooden wrote at 2013-04-19 10:35 -0500: > On Fri, Apr 19, 2013 at 5:00 PM, alberto fuentes wrote: > > A (me) -> Server (overseas) -> B (arbitrary computer in my city) > > To make a direct connection between A and B with ssh, you need to have at > least on of them be publicly available even

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-19 Thread Bob Proulx
alberto fuentes wrote: > A (me) -> Server (overseas) -> B (arbitrary computer in my city) > > To make it a little more clear. Both computer A and B know about Server. > Right now I use openvpn to bring all the computers together into the same > network. But it seems too much overhead being both co

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-19 Thread Lars Nooden
On Fri, Apr 19, 2013 at 5:00 PM, alberto fuentes wrote: > A (me) -> Server (overseas) -> B (arbitrary computer in my city) To make a direct connection between A and B with ssh, you need to have at least on of them be publicly available even if the other is blocked behind a firewall. Depending

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-19 Thread alberto fuentes
On Fri, Apr 19, 2013 at 5:00 PM, alberto fuentes wrote: > A (me) -> Server (overseas) -> B (arbitrary computer in my city) > To make it a little more clear. Both computer A and B know about Server. Right now I use openvpn to bring all the computers together into the same network. But it seems to

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-19 Thread alberto fuentes
On Fri, Apr 19, 2013 at 1:24 PM, Pascal Hambourg wrote: > I guess the OP means "packets" instead of "packages". Some languages > have the same word for "packet" and "package". However I cannot figure > out clearly what he is asking for either. > > Yes. I never noticed packages and packets are the

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-19 Thread Pascal Hambourg
Hello, Bob Proulx a écrit : > > You first mentioned connecting to a server so I guessed ssh. That was > apparently not what you were asking about. Now you mention packages. > I could guess that you want to set up an apt proxy of some sort. Is > that what you are asking about? A way to set up

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-18 Thread green
alberto fuentes wrote at 2013-04-18 16:18 -0500: > Its a long shot because i can really picture how could it work > > I know I can connect using the third server, but I just want to use the > server to establish the connection Perhaps the nat-traverse package is of interest to you. signature.as

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-18 Thread Bob Proulx
alberto fuentes wrote: > That way all the packages would be forwarded via the server. > > The server is overseas. Im trying to connect to a computer in my city. > Packages have to travel and comeback. I was hoping some kind of magic that > would allow me to use the server overseas *just* to establ

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-18 Thread alberto fuentes
On Thu, Apr 18, 2013 at 11:27 PM, Bob Proulx wrote: > alberto fuentes wrote: > > Subject: connect directly to another computer bypassing firewalls > > using a third server > > Its a long shot because i can really picture how could it work > > > > I know I can connect using the third server, but I

Re: connect directly to another computer bypassing firewalls using a third server

2013-04-18 Thread Bob Proulx
alberto fuentes wrote: > Subject: connect directly to another computer bypassing firewalls > using a third server > Its a long shot because i can really picture how could it work > > I know I can connect using the third server, but I just want to use the > server to establish the connection The c