I want to use gcloud compute scp over an authentication proxy network. I tried setting the proxy in gcloud command line sdk using
gcloud proxy settings
Thereafter, I tried
gcloud compute scp --recurse nakumgaurav25#instance-2:~/myData ~/Desktop
But it doesn't work. The error shown is
ssh: connect to host 35.230.136.59 port 22: Connection timed out.
Note that the same command works when I disable the proxy settings and connect my PC to a non-proxy network.
are you still getting the connection refused message ? I need a little be more info to help you out; (1) which type of proxy are you using? (2) the remote machine (VM) is a linux OS? because is not possible use gcloud compute scp from a Windows VM. assuming the remote machine is using Linux OS, have you try to set a variable on your local host export http_proxy=server-ip:port then set again the proxy.
Related
I am new to mongoDB trying to setup tools for my new project. Most of my infrastructure run on AWS so i prefer to use AWS documentDB. I manage to connect to documentDB from EC2 both via mongo client or NodeJS aplication. but it would be good to mange documentDB from my Windows workstation using MongoDB Compass.
As we know, we can not direct connect any mongo client from outside AWS to DocumentDB Connecting to an Amazon DocumentDB Cluster from Outside an Amazon VPC
so we need SSH tunnel through EC2. I try many options but still fail... below are most likely 2 options:
Option 1: Connect using MongoDB Compass SSH tunnel
Error: unable to get local issuer certificate
both RDS-COMBINED-CA-BUNDLE.PEM and SSH Key already supplied so which one unable to get?
as red highlight on SSH port, I also tried to open another SSHD port on server and tried to connect using second port but still failed.
Option 2: Connect using Putty SSH tunnel
Error: Hostname/IP does not match certificate's altnames...
since MongoDB Compass need to connect to locathost to get into tunnel and i still can not find the way to supply --sslAllowInvalidHostnames options.
So, what i can do to get around this ?
MongoDB Compass: 1.25.0
I am done with Compass.
successful established "robo3t" connection to AWS DocumentDB using this guild.
https://docs.aws.amazon.com/documentdb/latest/developerguide/robo3t.html
As of Jan 2022 MongoDB Compass does not support sslInvalidHostNameAllowed=true in the connection builder form, this is the parameter you are missing in order to connect to AWS DocumentDB while ssh tunneling to a machine inside the same VPC of the database itself.
I used Studio 3T and it worked perfectly. You could create the connection string yourself or try other GUI.
Edit Jan 2023:
I just gave a try to compass again and it seems they now support sslInvalidHostNameAllowed flag through the UI, you could still change manually the connection string but then any UI interaction would overwrite it.
If you edit the connection string directly in MongoDB Compass you can set options that may not be accessible in the user interface.
Below is an example with tweaked parameters to connect without using TLS:
mongodb://xxxx:yyyy#localhost:27017/?authSource=admin&connectTimeoutMS=10000&readPreference=primary&authMechanism=SCRAM-SHA-1&serverSelectionTimeoutMS=5000&appname=MongoDB%20Compass&ssl=false
For Hostname, are you using DocumentDB endpoint? In one screenshot, I see you are using localhost.
I have managed to connect with option 1.
The workaround can be by establish connection using SSH Tunnel (port forward) and so that SSH tunnel opens a port on your local system that connects through to another port at the other end of the tunnel.
Using the below command establishes a tunnel on terminal and later you can use this channel/connection to connect MongoDB using MongoDB Compass.
For example:
ssh user#aws-ec2-ip-address -L 35356:127.0.0.1:27017 -N
where -L as the Local listening side
Port 35356 is listening on localhost (that is in this case your EC2) and port forwards through to port 27017 on remote server.
Note - Add identity file in .ssh/config
Ex - On Mac
Host XXXXXXX
HostName 52.xx.xx.xx
User ubuntu
IdentityFile ./path/prod.pem
Need to reach phpMyAdmin on an EC2 instance behind a bastion/jumpserver from local laptop.
Looking to reduce these steps into using .shh/config. The question seeks to solve the right configurations.
When connecting to EC2 without public bastion server to jump through, this is the normal way documented which does not work in my case because our deployment uses a public facing bastion:
https://docs.bitnami.com/aws/faq/get-started/access-phpmyadmin/
When you need to jump through a public facing bastion e.g.:
Local/Laptop ------> bastion/jumpserver -----> ec2
This above reference link does not follow the same workflow and documentation is sparse.
Setting up inbound/outbound rules for this capability is also sparse.
The preference is to use .ssh/config which is setup like this:
Host bastionHostTunnel
Hostname <publicBastionIp>
User <bastionusername>
ForwardAgent yes
IdentityFile <local path to .pem file>
Host ec2Host
Hostname <privateEC2IP>
User <ec2 username>
ForwardAgent yes
IdentityFile <local path to .pem file>
# -A Enable forwarding of the Authentication agent connection
# -W used on older machines instead of -J to bounce through
# %h the remote hostname
# On Windows 10(only?) seems must call ssh.exe instead of only ssh
ProxyCommand ssh.exe -A -W %h:22 bastionHostTunnel
I obviously left out vars in <> above - but I have them and have verified similar configuration is working for enabling SFTP as above with FileZilla.
Then in shell call this to bind port localhost:8888 (http://127.0.0.1:8888):
ssh ec2Host -D 8888
Then ought to be able to open browser and go to the following to access phpMyAdmin:
http://127.0.0.1:8888/phpmyadmin
Current issue is that this process is hanging and possibly refusing the connection. This points to either bad configuration above or incorrect inbound/outbound rules for either/both bastion and ec2 instance.
Has anyone here had similar issue and was able to solve and could share further, much appreciated. Plus any extra clues as far as debugging the overall process would help in the answer.
I'm most curious if it works if you specific everything on the command line...once you determine that works, you can start refactoring to put some aspects in to .ssh/config. It's usually easier for me to find errors with my configuration if everything is on the command line, plus I don't know that I see the correct forwarding options all listed there.
Unless I'm very mistaken, you don't need any reference to the ec2 host in your SSH config file because you're using the jump machine to redirect localhost traffic there, you wouldn't directly be able to reach the ec2 host machine from your local machine using an SSH tunnel.
There are many ways to do a tunnel, but when I do this, I use a command like ssh -L 8080:destination:80 -i <keyfile> me#jumpbox . destination must be reachable from jumpbox, which I can verify by first using ssh -i <keyfile> jumpbox then, once on that machine, ssh destination. If there's a problem along the way, it's easier to debug these little steps (for instance, if I can't connect by manual ssh to jumpbox then I know the tunnel will never work).
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
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.
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..