Bash Ubuntu on Windows 10, connect to host port 22: Connection Failure - windows

I just installed the Bash Ubuntu on Windows 10 natively. When I try and acess a remote server I get ssh: connect to host HOSTNAME port 22: Connection refused
I have tried to find a solutions, but the solutions doesn't work.
This is what I have tried:
https://askubuntu.com/questions/59458/error-message-sudo-unable-to-resolve-host-user/733120#733120
When I could not acess /etx/hosts I tried this:
https://askubuntu.com/questions/326239/cannot-access-etc-hosts
After downloading gksudo to try and edit /etc/hosts I got this error message (gksudo:2601): Gtk-WARNING **: cannot open display:

Are u sure everything is correctly setup?
I just tried
ssh -T git#github.com
in my Bash on Ubuntu on Windows.
and it totally works Returning
Hi <usernamer>! You've successfully authenticated, but GitHub does not provide shell access.
Maybe you have some settings that prevent connections? for example in ~/.bashrc?
Maybe your server needs a different port? use ssh -p 2222 for that.

Related

is it possible to use ssh in pod?

I made hadoop image based on centos using dockerfile. There are 4 nodes. I want to configure cluster using ssh-copy-id. But an error has occurred.
ERROR: ssh: connect to host [ip] port 22: Connection refused
How can I solve this problem?
ssh follows a client-server architecture. So, the openssh-server has to be installed in the container. Now ssh-copy-id and other commands should run if the ip address is routable.

VNC viewer failing to make connection with "channel 3: open failed: connect failed: No route to host"

I ssh into a server with the following:
ssh -g -L5912:server:5912 user#host
It goes through, and I can access my files on the other server through the command line (meaning I can connect to the server, it is my vnc viewer that is failing!) but when I try to open my vnc viewer (RealVNC) and connect to localhost:12 i get the following error message in the vnc viewer application:
The connection closed unexpectedly.
Additionally in the original command line shell i get:
channel 3: open failed: connect failed: No route to host
I've tried switching to different ports and even checked out other posts on the same error message but the problem is i don't really understand them... ssh tunnels are still relatively new to me so i don't really know what im doing. Any help would be greatly appreciated. Thanks!
You're trying to setup a port forwarding, this may fail because of many reasons:
SSH port forwarding not enabled in the host
Check SSH server in the host if AllowTcpForwarding is enabled:
$ grep AllowTcpForwarding /etc/ssh/sshd_config
AllowTcpForwarding yes
Typically, it's commented out. Uncomment and restart the sshd.
No connection between the host and server over port 5912
SSH to the host and try:
$ telnet server 5912
Connected to server.
Escape character is '^]'.
Finally, does the server listen on 5912?
Similarly, as above, but from the server - go there and try telnet server 5912.
Best regards,
Jarek
In my case it was the port forwarding rule I had set in Putty.
Please make sure you enter the correct hostname when defining the rule in Putty. I changed
localhost:5903
with
myserver:5903
and it worked...

how to configure pycharm to ssh a bastion host using putty or OpenSSH

I am trying to ssh a bastion using pycharm PyCharm 2018.1 on a Windows 7 machine using putty.
I found some documentation to ssh a server and this work without any issues:
https://www.jetbrains.com/help/pycharm/tutorial-using-the-product-built-in-ssh-terminal-and-remote-ssh-external-tools.html
For the bastion server, it seems that pycharm doesn't allow such conection (in the config I only see login and server name as parameters). I tried to put in the putty configuration to the bastion server a tunnel to a localhost. On my window machine I see the port of my localhost.
The issue is that I don't manage to connect pycharm to the localhost. It expect a login and a pwd while I just have the localhost name.
I see in a post from last year that "if you are using a bastion host (also referred to as a jump host), you’ll be very happy to know that PyCharm 2017.3 supports SSH config files. Even on Windows."
https://blog.jetbrains.com/pycharm/2017/10/pycharm-2017-3-eap-5/
Any idea how to have it working either with the localhoast of using OpenSSH and SSH config file ?
The issue was the localhost.Using plink directly is working with no problem using same commands than regular ssh: plink.exe -L 9009:server:22 user#bastion. With Putty it doesn't work (first the IP was 0.0.0.0:port instead of 127.0.0.1:port even with the right port pycharm failed to connect with it work when I use plink directly).
This thread was helping: https://serverfault.com/questions/387772/ssh-reverse-port-forwarding-with-putty-how-to-specify-bind-address

SSH connection refused conencting from Unix server to Windows server

I am trying to execute the below command in putty.
ssh username#servername
I am getting the below error messsage:
ssh: connect to host servername port 22: Connection refused
I am trying to connect to a Windows server from a Unix server. Please help me!
The main think is that Windows Server doesn't contain ssh daemon in the box. You could install telnet server from the Windows components and connect from unix to windows machine by telnet command or use 3d-party ssh servers/cygwin.
More available on Server Fault or SO. (How ironic, both topics are closed as offtopic)

"network error: connection refused", putty error

I am trying to run putty on Windows 7.
I need to run some SSH commands to upgrade Magento. Every time putty gives me this fatal error:
network error: connection refused
I have even tried to use it through winSCP. Note that putty is running fine on my client's side, but for me it's giving me that error every time.
I tried using port 22, 23 and a few others without success. I have also tried with Windows Firewall both enabled and disabled.
Thank you.
Install open-ssh or ssh in target Linux machine solved my problem .
Use below commands:
sudo apt install ssh
sudo systemctl status ssh
sudo systemctl enable ssh
The following are the list of possibilities of this error:
1) Common cause is - Your IP is blocked or not whitelisted in the server which can be done by editing the file at /etc/csf/csf.conf
2) Disable the windows firewall settings and check..
The above two things should work in most of the cases
3) This is very unusual and when the above two options fails it is very difficult to find the solution
In this case the traceroute to the server host or IP works usually but putty fails
port 22 looks normal and working but connection fails and restarting SSH (service ssh restart) also does not work
reboot or restart the server but still fails
Adding IP in firewalls or whitelisting the local IP may not workout
This case generally happens when the server is migrated or new server. IP of the old server might be whitelisted locally, but don't have port 22 open, or some other local filtering is occurring for this new IP but not the old server IP..
In this case you need to change the port to some 522 or 530 some unusual port will help in sorting it out.. The same port you have to use for the SFTP connection also .. where as FTP connections works normally..
or you have to whitelist the IP locally or open the TCP in and out to port 22 if you want to use the port 22..

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