Try using the -N argument to your ssh command so it returns immediately after creating the tunnel: ssh -LN 3306:remote.db.host:3306 username@hostname.. User response.

so for this would be better to use dynamic forwarding (aka SOCKS proxy): ssh -D 9999 me@work and then set up your browser to pass data over this proxy, which would allow you to connect directly to the website using the same URL. pc1 (linux) with ssh server at port 22.


-R creates a listener on the Remote side forwarding to something on the local machine/network). There are two kinds of port forwarding: local and remote forwarding. This is again best to explain with an example.

Port forwarding, or tunneling, is a way to forward otherwise insecure TCP traffic through SSH Secure Shell. Sorry about that it is supposed to be like this.

pc2 (windows) terminal server.

Tunneling Terminal Services over console. Try using the -N argument to your ssh command so it returns immediately after creating the tunnel: ssh -LN 3306:remote.db.host:3306 username@hostname..
@Kenster is it exactly Bad local forwarding specification '22127:localhost:22127 [cluster_name]' – PL-RL Mar 12 '18 at 14:20

– Jakuje Oct 6 '15 at 12:40

Code: I would also use ssh keys (potentially sans passphrase or use a keyring of some sort) so you don't have to use pexpect.

They are also called outgoing and incoming tunnels, respectively. 做一个ssh远程端口映射，报错：Bad local forwarding specification解决方法：命令粘过来的空格有问题，先粘到记事本等地方转为纯文本，再粘过来就OK了。 1260 次阅读 做一个ssh远程端口映射，报错：Bad local forwarding specification. Then i had tried. System programmer response.

Basically, this will parse your ssh command line and if it finds a -p option followed by a numeric port specification, it will create a new ssh_config in /tmp/ssh_config by substituting every occurrence of myport with the numeric port value you specify on the command line.

Now comes the second part of this tutorial, which is remote port forwarding. Say that you’re developing a Rails application on your local machine, and you’d like to show it to a friend. But as with local port forwarding, the syntax remains the same. Verify that the value for the ssh –L … #242 Fix forwarding separator (Bad local forwarding specification) Milestone: v1.0 (example) Status: open.

Ports forwarded with -L or -R do not require any specific protocol handshake - the forwarding is transparent to the applications connecting to that port, though the channel is encrypted by SSH.

The ssh –L option is set to a bad value value. Code: ~$ ssh -L 3389 private_ip_pc2:3389 user@public _ip_office Bad local forwarding specification '3389'. with the dynamic forwarding, I can now use the port as a proxy and localhost:someport calls are directed to the remote server. First you need to specify the port on which th remote server will listen, which in this case is 9000, and next follows localhost for your local machine, and the local port, which in this case is 3000. I would also use ssh keys (potentially sans passphrase or use a keyring of some sort) so you don't have to use pexpect. System action. You are nearly there.

It returns an error: "Bad local forwarding specification '1234'" – brains_at_work Jan 6 '12 at 21:37 @matthias-ahnberg : Great, that did the trick. The available options are “yes” or “all” to allow TCP forwarding, “no” to prevent all TCP forwarding, “local” to allow local (from the perspective of ssh(1)) forwarding only or “remote” to allow remote forwarding only. Bad local forwarding specification 'ローカルのポート番号:接続したいサーバ:接続したいサーバのポート番号' スペースが足りなかったり、余分なスペースが入ると出るエラーらしい（ 参考 ）が、 Bad local forwarding specification 'value' Explanation.

The bind_address of `localhost'' indi- cates that the listening port be bound for local use only, while an empty address or*' indicates that the port should be avail- able from all interfaces.-D [bind_address:]port Specifies a local ``dynamic'' application-level port forwarding. The program ends. There … You can secure for example POP3, SMTP and HTTP connections that would otherwise be insecure. ... [email protected]_ip_office Bad local forwarding specification '3389' algonco, May 15, 2008 #3. topdog Active Member.

Remote port forwarding.

algonco,

Discussion in 'Technical' started by algonco, May 14, 2008.

You are nearly there. The correct syntax for local port forwarding is -L [bind_address:]port:host:hostport but sequel pro uses forward slashes instead of colons between fields.

AllowTcpForwarding Specifies whether TCP forwarding is permitted. The port is open by the router. The default is “yes”. 解决方法：命令粘过来的空格有问题，先粘到记事本等地方转为纯文本，再粘过来就OK了。 This works for some reason with apple's supplied ssh but doesn't work if you build a newer ssh from brew. Follow local procedures for reporting problems to IBM.

– brains_at_work Jan 6 '12 at 21:50


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