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UNIX for Advanced & Expert Users
SSH Tunneling
Post 302108589 by silvaman on Tuesday 27th of February 2007 02:45:38 PM
02-27-2007
SSH Tunneling
Hi all
question -
there are 2 servers A + B. server A is connected to the internet and running a squid proxy server - server B is behind a firewall. I can ssh from A to B but not from B to A. I need internet access on B to update some files. I thought I could use some sort of ssh tunnel to achieve this.
I was thought a remote port forward from A to B. I configured this ( from server A do 'ssh -R 1234:squidproxy_ipaddress:3128 user@server_B) and got a http 403 error when doing the update on B and pointing at localport 1234 which , i thought, indicated a permissions issue on the squid proxy no problem to sort out - except i dont have permissions to do it
- the sysadmin can sort it out though
however
The sysadmin says it wont work I should be doing a local port forward on A - i configured this (ssh -L:localhost:3128 user@serverB) and got a 'connection refused error' when doing the update from server B
its not resolved yet as sysadmins unavailable but out of curiosity who is right here - these tunnels can get a bit confusing! - thoughts appreciated as always
question -
there are 2 servers A + B. server A is connected to the internet and running a squid proxy server - server B is behind a firewall. I can ssh from A to B but not from B to A. I need internet access on B to update some files. I thought I could use some sort of ssh tunnel to achieve this.
I was thought a remote port forward from A to B. I configured this ( from server A do 'ssh -R 1234:squidproxy_ipaddress:3128 user@server_B) and got a http 403 error when doing the update on B and pointing at localport 1234 which , i thought, indicated a permissions issue on the squid proxy no problem to sort out - except i dont have permissions to do it
- the sysadmin can sort it out thoughhowever
The sysadmin says it wont work I should be doing a local port forward on A - i configured this (ssh -L:localhost:3128 user@serverB) and got a 'connection refused error' when doing the update from server B
its not resolved yet as sysadmins unavailable but out of curiosity who is right here - these tunnels can get a bit confusing! - thoughts appreciated as always
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LEARN ABOUT OPENSOLARIS
bssh
bssh/bvnc/bshell(1) General Commands Manual bssh/bvnc/bshell(1) NAME
bssh/bvnc/bshell - Browse for SSH/VNC servers on the local network SYNOPSIS
bssh bvnc bshell DESCRIPTION
bssh/bvnc/bshell browses for SSH/VNC servers on the local network, shows them in a GUI for the user to select one and finally calls ssh/vncviewer after a selection was made. If the binary is called as bssh only ssh servers will be shown. If the binary is called as bvnc only VNC servers will be shown. If the binary is called as bshell both VNC and SSH servers are shown. OPTIONS
-s | --ssh Browse for SSH servers (and only SSH servers) regardless under which name the binary is called. -v | --vnc Browse for VNC servers (and only VNC servers) regardless under which name the binary is called. -S | --shell Browse for both VNC and SSH servers regardless under which name the binary is called. -d | --domain= DOMAIN Browse in the specified domain. If omitted bssh/bvnc/bshell will browse in the default browsing domain (usually .local) -h | --help Show help. SEE ALSO
avahi-browse(1), ssh(1), vncviewer(1) COMMENTS
This man page was written using xml2man(1) by Oliver Kurth. Manuals User bssh/bvnc/bshell(1)