Re: ssh tunnel problems

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On Sat, 2008-06-21 at 10:22 -0400, Rick Bilonick wrote:
> On Fri, 2008-06-20 at 23:01 -0500, Kevin Martin wrote:
> > 
> > 
> > Rick Bilonick wrote: 
> > > I'm using Fedora 8 on a server behind a firewall (with incoming ssh
> > > blocked) and my computer at home.
> > > 
> > > I did the following on the server:
> > > 
> > >   
> > > > ssh -R 5000:localhost:22 me@home
> > > >     
> > > 
> > > which connected to my home computer after I entered the password. (I
> > > could list files, etc.) I also set up /etc/ssh/sshd_config on the server
> > > to keep the connection open.
> > > 
> > > At home I entered (using the password for user=server on the server):
> > > 
> > >   
> > > > ssh server@localhost -p 5000
> > > >     
> > > ssh: connect to host localhost port 5000: Connection refused
> > > 
> > > I've tried adding:
> > > 
> > > sshd : ALL : allow
> > > portmap : ALL : allow
> > > 
> > > to /etc/hosts.allow but still get the same message. I have no idea why
> > > I'm not able to connect to the server through the ssh connection. I can
> > > ssh out from the home computer to other servers with port 22 not
> > > blocked.
> > > 
> > > Rick B.
> > > 
> > >   
> > Rick,
> > 
> > On your home machine, does a netstat -an | grep 5000 show you a
> > listening port?  When do you get if you add the -v flag to your
> > connection attempt from your home computer?
> > 
> > FWIW, your use of localhost on both the server side and the home side
> > makes this a very confusing read.
> > 
> > Kevin
> > -- 
> > fedora-list mailing list
> > fedora-list@xxxxxxxxxx
> > To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
> 
> Here's what I get:
> 
> [chippy@localhost ~]$ netstat -an | grep 5000
> tcp        0      0 127.0.0.1:50001             0.0.0.0:*
> LISTEN  
> 
> 
> [chippy@localhost ~]$ ssh server@localhost -p 5000 -v
> OpenSSH_4.7p1, OpenSSL 0.9.8b 04 May 2006
> debug1: Reading configuration data /etc/ssh/ssh_config
> debug1: Applying options for *
> debug1: Connecting to localhost [127.0.0.1] port 5000.
> debug1: connect to address 127.0.0.1 port 5000: Connection refused
> ssh: connect to host localhost port 5000: Connection refused
> 
> I'm using "localhost" because I was following an example. I guess I
> could substitute an IP for localhost. Isn't "localhost" just another
> name for the local computer? So on the first use of ssh, localhost
> refers to the server and on the second use of ssh, it refers to the home
> computer. At least, that's what I believe.
> 
> Rick B.
> 

I forgot to add that I'm not sure why it is listening on port 50001. I'm
sure I set it up to use port 5000. If I try to use 50001:

ssh goldy@localhost -p 50001 -v
OpenSSH_4.7p1, OpenSSL 0.9.8b 04 May 2006
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to localhost [127.0.0.1] port 50001.
debug1: Connection established.
debug1: identity file /home/chippy/.ssh/identity type -1
debug1: identity file /home/chippy/.ssh/id_rsa type -1
debug1: identity file /home/chippy/.ssh/id_dsa type -1

Then I have to ctrl c to get out of this.

Rick B.

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