I want to connect to an Azure machine on which is installed an Ubuntu distribution.
I can connect or through ssh or, by installing some other software, by using X2Go.
However, I don't need the UI and if it's possible I would like to use Visual Studio Code.
On this last I've installed the ssh component and I've already used it to connect to other machines.
Unfortunately I'm not able to connect to the Azure machine by using VS Code.
The ssh connection works, I tested it by connecting through the terminal.
The connection string is in the following for:
(user_name)#(machine_name).westeurope.cloudapp.azure.com
I'm not the system administrator and I don't know the public IP.
I think the problem is the ssh port, I read that the standard port for ssh is 22 while I have 53044.
On VS Code I tried the following solution:
connection string: (user_name)#(machine_name).westeurope.cloudapp.azure.com:53044
I added the connection info into the config file with this format:
Host Linux_Azure
HostName (machine_name).westeurope.cloudapp.azure.com
User (user_name)
Port 53044
None of them work.
With the first solution VS Code tries to connect forever, failing with no error messages.
With the second solution VS Code gives back this error message: Could not establish connection to "Linux_Azure": The connection timed out.
I don't understand why it doesn't work, and I don't know how to solve it.
Do you have any idea to solve it?
I deployed one Ubuntu VM and tried connecting to it via SSH in VS code and got connected successfully with Port 22 like below:-
ssh siliconuser#siliconlinuxvm123.centralindia.cloudapp.azure.com -p 22
Output:-
When I tried connecting with port 53044, Even I got the same error code as yours like below:-
By default Azure Linux VM uses Port 22 to SSH, You cannot change the default destination port as it is fixed for a particular protocol. Example For RDP - Port 3389 is used, For HTTP- Port 80 and for SSH- Port 22 is used.
When I try to allow SSH in the inbound rule on VM's Networking Page > Port 22 is selected by default and greyed out thus we cannot add other port as a destination range refer below:-
Related
I created a VM in Microsoft Azure with Ubuntu 20 in which I run a Tomcat Server exposed to Port 443 and 80 (redirecting to 443), Neo4j on Port 7474, and Jenkins on Port 8081.
I can't access neither of those ports, although I set all the Inbound Port Rules like this:
When I try to reach IP:PORT, I always get this:
I am kinda new to Azure. It is possible to log in to the servier via SSH in the Terminal. Can anyone help me? How can I access my Server?
Have you tried to access to the VMs by using SSH and looking whats going on with the logs ?!
Yes, you can connect to a terminal by SSH:
ssh -i <private key path> username#ipaddress
If you don't config your SSH key, you can use create you password on the Azure portal.
In your VM, on the left, you have many options, and one name reset password.
I am having trouble accessing the weblogic console from a different machine in the same network.
I installed weblogic on a server from a different machine by ssh. The weblogic is up and running, but now I can't access the console on a browser from my machine. Both machines are part of the same network.
I am able to SSH in to the server from my local machine. Ping also works on both machines using each other's IP address.
telnet gives me the following output:
am#Linux-Vostro-3250:~$ telnet 192.x.x.x 7002
Trying 192.x.x.x...
telnet: Unable to connect to remote host: No route to host
This is confusing me, because I am able to access the server using ssh.
I searched everywhere for a possible solution, but I could only find more problems.
In very simple language, how do I resolve this issue or what exactly may the cause be?
There was no firewall cinfigured in the server. I set up a firewall by following the instructions from this site "https://oracle-base.com/articles/linux/linux-firewall"
There are two GUI options but none of them worked for me so better stick to the CLI.
then, using the following command i granted access to my local machine from the server :
# Accept packets from specific host (x.x.x.x).
iptables -A INPUT -s x.x.x.x -j ACCEPT
Now i can access the Weblogic console from my x.x.x.x machine.
I have a Ubuntu VM on Azure (Resource Group, not the Classic VM) and it all worked out of the box. I recently tried to SSH into the VM using Putty and I could not.
I get the error: Network Error: Connection Timed out.
I have made sure that the port 22 is opened for SSH on the VM Inbound rules.
I had this VM setup about 2 months ago for a side project and at that time I was able to SSH easily without any troubles. Now I can't. Am I missing something?
PS: The HTTP works fine. I have the website running on it and it shows up in the browser. Also, I tried using a browser-based SSH client and it was able to SSH into the VM.
Looks to be an issue with the local firewall. Try resetting the SSH configuration in the portal.
Go to Azure Portal
Select VM in question
Select Reset
Password
Select Reset Configuration Only
Select Update
I am adding this because it might help someone, the chosen answer did not work for me
for some reason the firewall on the ubuntu server
Go to Serial Console type in your ssh username and you will be logged into the server
Check the firewall status to see if port 22 is allowed
sudo ufw status verbose
If the rule is not there then add it
sudo ufw allow ssh
I encountered the same issue. The following is how I solve this issue:
Don't add any port While creating your VM, do it only after only the VM is created
Add the port 22 in the networking tab until the VM status is Running.
When a new VM is created on Azure, by-default the Protocol TCP on Port 22 is Disabled. Need to allow this.
Follow:
https://medium.com/techinpieces/practical-azure-how-to-enable-ssh-on-azure-vm-84d8fba8103e
Create below directory : mkdir -p /run/sshd
Then restart service : systemctl restart ssh
This will definitely solve your issue.
I am trying to access my Linux machine from anywhere in the world. I have tried originally port forwarding and then ssh'ing in; however, I believe my school's WiFi won't allow port forwarding (every time I ran it, it would tell me connection refused). I have setup an account with ngrok and I can remotely SSH in, but now I am wondering if it is possible to RDP. I tried connecting via the Microsoft Remote Desktop app on Mac, but it instantly crashes. I have also looked at trying to connect with localhost, but it's not working. So far, I have tried (with xxxx being the port):
ssh -L xxxx:localhost:xxxx 0.tcp.ngrok.io
and
ssh -L xxxx:localhost:xxxx <user>#0.tcp.ngrok.io
but my computer won't allow it and after about 2 or 3 times, it warns me of a possible DNS Spoofing. Is there anyway that I can run a remote desktop of my linux machine that I have ssh tunneled to (from my mac) on ngrok? Thank you!
First you'll need to sign up with ngrok if you haven't already and you'll be given an authtoken. You'll need to install this by running
./ngrok authtoken <insert your token here>
This will save your token to a file located ../username/.ngrok/ngrok.yml
Then you'll need to ask ngrok to create a TCP tunnel from their servers to your local machine's Remote Desktop port which should be 3389 by default
ngrok tcp 3389
Give it 30 seconds or so then jump to http://localhost:4040/status to see what the tcp address ngrok has allocated you. It should look something like tcp://1.tcp.ngrok.io:158764
Now you should be able to remote into your machine using address 1.tcp.ngrok.io:158764
I am trying to add a new server to an existing cluster. I am using community version 2.1.1 on both ubuntu servers on windows azure. I tried to add new server via web interface and via command line. But i am getting following error.
***"Failed to reach erlang port mapper. Timeout connecting to "xx.xx.xx.xx" on port "4369". This could be due to an incorrect host/port combination or a firewall in place between the servers.']***
Port 4369 is open on both servers and iam able to connect to 4369 port on other server using telnet
Got the same error when used the following command.
/opt/couchbase/bin/couchbase-cli server-add --cluster=xx.xx.xx.xx:8091 -u user -p password --server-add=yy.yy.yy.yy:8091 --server-add-username=Administrator --server-add-password=password
ERROR: unable to server-add yy.yy.yy.yy:8091 (400) Bad Request
[u'Prepare join failed. Failed to reach erlang port mapper. Timeout connecting to "xx.xx.xx.xx" on port "4369". This could be due to an incorrect host/port combination or a firewall in place between the servers.']
root#xx.xx.xx.xx:/home/azureuser/project# telnet yy.yy.yy.yy 4369
Trying yy.yy.yy.yy...
Connected to yy.yy.yy.yy.
Escape character is '^]'.
^]q
telnet> q
Connection closed.
What will be the issue? Please help me sort this out.
There are a number of ports required to be open between cluster nodes (in addition to 4369) - I'd suggest ensuring all of the ports listed in the Couchbase Installation Guide - Network ports are open and accessible.