similar to: remote port forwarding with dynamic port on the far end

Hi, I am using the following version of OpenSSH for reference: root at proxy:/root# ssh -V OpenSSH_4.8, OpenSSL 0.9.7j 04 May 2006 root at proxy:/root# uname -a OpenBSD proxy.localdomain 4.3 GENERIC#698 i386 I am developing an application which uses on-the-fly SSH port forwarding by using the "~C" escape sequence to add local port forwards when needed (through Expect). It would

Hey folks... I'm still working on that automount/nfs/ssh combination. When you use "-L port:host:hostport" to forward a port on the localhost to a port on a remote host, A) What is the origin that the remote system sees for the packets? Is it "port" on localhost, or the source of the messages sent to "port"? B) How connected is this? Can you send a UDP

Here's another patch for people providing ssh access to restricted environments. We allow our users to use port forwarding when logging into our mail servers so that they can use it to fetch mail over an encrypted channel using clients that don't support TLS, for example fetchmail. (In fact, fetchmail has built-in ssh support.) However we don't want them connecting to other places

On 19Oct2018 17:12, Damien Miller <djm at mindrot.org> wrote: >On Fri, 19 Oct 2018, Cameron Simpson wrote: >> The ssh command line's -L option has supported socket forwarding for >> a while, >> but as far as I can tell the ssh_config file does not, even in 7.9. > >It does, look for LocalForward Pardon me, I've been unclear. I don't mean TCP forwards

Hi. Attached is a patch that introduces a new escape character (~c) that opens a command line. From the command line, a command of the form: -L port:host:hostport can be entered, which will forward the local port, as if the same option has been provided on the command line. I attempted to allow remote port forwards to be specified similarly, but the server disconnects with a protocol error

https://bugzilla.mindrot.org/show_bug.cgi?id=2393 Bug ID: 2393 Summary: Remote dynamic port forwarding for OpenSSH client Product: Portable OpenSSH Version: 6.8p1 Hardware: All URL: http://d3s.mff.cuni.cz/~steinhauser/openssh.html OS: All Status: NEW Keywords: openbsd, patch

OpenSSH supports the -b bind_address argument for binding to a local IP address when connecting to a remote host. It's however currently not possible to specify a local port to bind to, something I've found useful at several occasions. Below is an unified diff that introduces the [-B bind_port] option to ssh(1) and a ssh_config(5) style option "BindPort bind_port". This allows

Hi, tmux author refuses to add -h, --help option, because OpenSSH does not have it [1]. I don't see why convenience features of tmux should depend on OpenSSH, but because I have no other choice (and got curious) I ask here - why OpenSSH doesn't provide -h or --help option? I use PuTTY as my client, which processes --help option, and for `ssh` binary I usually use Google + StackOverflow.

I found that the documentation for -L and -R was hard to understand. So I made some changes to try to make it clearer. I started with Revision 1.328 from http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/ssh.1 Comments welcome. ================ ssh.1.patch ================ --- ssh.1 2012/09/15 16:08:48 1.1 +++ ssh.1 2012/09/15 20:23:35 @@ -51,13 +51,13 @@ .Op Fl F Ar configfile .Op Fl I

Hi all, When a client requests dynamic remote forwarding with -R it delays forking into the background. In ssh.c we see if (options.fork_after_authentication) { if (options.exit_on_forward_failure && options.num_remote_forwards > 0) { debug("deferring postauth fork until remote forward " "confirmation received");

On 19 Apr 2017, at 16:20, Jack Elliott wrote: > For our community radio station's live music festivals broadcasts, we > set up a small broadcast studio at the festival's venue, and use > B.U.T.T. to send a stream to an Icecast server located at the radio > station's building. > > REMOTE LOCATION STATION BUILDING > B.U.T.T. =======

The attached patch for 4.6p1 adds a feature (-u) that will check to see if a key exists on a remote host. I use this for auditing my users transition to v2 keys very useful. If there is any interest I'll provide a patch for v2 ssh keys also. http://vapid.dhs.org/dokuwiki/doku.php?id=vapidlabs:openssh_check_key_patch -- Thanks Larry --- orig/openssh-4.6p1/sshconnect1.c 2006-11-07

On Fri, 9 Jun 2023, Chris Rapier wrote: > Hi all, > > When a client requests dynamic remote forwarding with -R it delays forking > into the background. In ssh.c we see > > if (options.fork_after_authentication) { > if (options.exit_on_forward_failure && > options.num_remote_forwards > 0) { > debug("deferring postauth fork until

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, the following patch extends the user at host syntax on the ssh command line to allow an additional HostKeyAlias and Port to be given as a single argument, eg: ssh user at localhost%8022,www.tdl.com is equivalent to ssh -o 'HostKeyAlias www.tdl.com' -p 8022 user at localhost The patch is particularly useful when ssh is called from

I recently ran across a problem with remote port forwarding in OpenSSH when trying to use dynamic ports. While it is possible to use OpenSSH to request a dynamic port and the OpenSSH sshd handles it just fine, the OpenSSH client gets confused when multiple ports are opened this way, due to the information passed in the "forwarded-tcpip" SSH_MSG_CHANNEL_OPEN message which is sent back to

On Sun, May 8, 2016 at 9:04 PM, Markus Friedl <mfriedl at gmail.com> wrote: > I have an ugly patch for that feature that requires protocol modification. Why does it require a protocol modification? Couldn't the client request regular forwarded-tcpip from the server then decode SOCKS entirely within the client? -- Darren Tucker (dtucker at zip.com.au) GPG key 8FF4FA69 / D9A3 86E9

Hi folks, I'm wondering if it is possible to set up a dynamic port forward (i.e. socks proxy), where the listening socket is actually on the server rather than the client as is currently the case for -D ? A possible use case is providing a deeply firewalled box with an outbound SOCKS proxy, but only while an inbound ssh connection is active. Or, in my particular case, I have many routers

Hi David, I don't think we will necessarily be on wifi, I'm sorry if I implied that. There are a couple of events each year when we have to use wifi, but for those I have a dedicated access point running at close to 1 watt connected directly to our ISP's network. Okay, I was told over on the Darkice listserv that using Darkice > WAN > Icecast is not very reliable, and my

I'm looking for a way to have the server allocate an available port number when using remote port forwarding. In draft-ietf-secsh-connect-25.txt such a feature is described but I fail to see if/how this is actually supported by openssh. Quote from the draft: If a client passes 0 as port number to bind and has 'want reply' TRUE then the server allocates the next available

For our community radio station's live music festivals broadcasts, we set up a small broadcast studio at the festival's venue, and use B.U.T.T. to send a stream to an Icecast server located at the radio station's building. REMOTE LOCATION STATION BUILDING B.U.T.T. ======= WAN =======>> ICECAST SERVER It's pretty reliable, though BUTT does