Tunnel | Forward tcp-ip | TCP library

by adohe-zz Java Version: Current License: MIT

X-Ray Key Features Code Snippets(3)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | Tunnel Summary

Tunnel is a Java library typically used in Networking, TCP applications. Tunnel has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can download it from GitHub.

Direct&Forward tcp-ip(also called port forward) implementation in Java.

Support

Quality

Security

License

Reuse

Support

Tunnel has a low active ecosystem.

It has 6 star(s) with 0 fork(s). There are 2 watchers for this library.

It had no major release in the last 6 months.

Tunnel has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of Tunnel is current.

Quality

Tunnel has 0 bugs and 0 code smells.

Security

Tunnel has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

Tunnel code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

Tunnel is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

Tunnel releases are not available. You will need to build from source code and install.

Build file is available. You can build the component from source.

Tunnel saves you 285 person hours of effort in developing the same functionality from scratch.

It has 688 lines of code, 39 functions and 15 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed Tunnel and discovered the below as its top functions. This is intended to give you an instant insight into Tunnel implemented functionality, and help decide if they suit your requirements.

Run the localTunnel client
Receive data from a local stream
Read headers from the stream
Connects to the tunnel
Takes a destination
Closes the socket
Write a message to the output stream
Handles a remote receive
Unnel a port
Parse an integer
Handles POST requests
Initializes the auth parameter
Gets the thread number

Get all kandi verified functions for this library.

Tunnel Key Features

No Key Features are available at this moment for Tunnel.

Tunnel Examples and Code Snippets

Calculate the sine gradient of the tunnel .

python

Lines of Code : 5

License : Non-SPDX (Apache License 2.0)

Copy

def _FresnelSinGrad(op, grad):
  """Compute gradient of fresnel_sin(x) with respect to its argument."""
  x = op.inputs[0]
  with ops.control_dependencies([grad]):
    return grad * math_ops.sin((np.pi  / 2.) * math_ops.square(x))

Calculate the cosine gradient of a tunnel .

python

Lines of Code : 5

License : Non-SPDX (Apache License 2.0)

Copy

def _FresnelCosGrad(op, grad):
  """Compute gradient of fresnel_cos(x) with respect to its argument."""
  x = op.inputs[0]
  with ops.control_dependencies([grad]):
    return grad * math_ops.cos((np.pi  / 2.) * math_ops.square(x))

Creates a new tunnel .

java

Lines of Code : 4

License : Non-SPDX

Copy

@Override
  public void work() {
    LOGGER.info("{} creates another promising tunnel.", name());
  }

Community Discussions

Trending Discussions on Tunnel

ssh reverse mysql tunnel with a aliased host

How to run command in background and also capture the output

Kubernetes - How to access deployments in minikube?

Trying to expose an endpoint from a kubernetes pod to the internet/ browser/ API

Make reverse TCP connection accept any amount of connections (like a normal TCP server)

Constant Error Trying to Use Proxy to Request IP via httpbin.org

NodePort type service not accessible outside cluster

Can AWS Lambda function call an endpoint over a VPN?

Receiving HTTP 401 when accessing Cloud Composer's Airflow Rest API

PowerShell - matching a regex against threadjob output works but doesn't populate $matches variable

QUESTION

ssh reverse mysql tunnel with a aliased host

Asked 2022-Apr-16 at 16:52

I am trying to ssh into my server and then access the mysql on localhost for quick prototype development when testing on live.

Here is my connection in the server:

...

ANSWER

Answered 2022-Apr-16 at 16:52

When you use an ssh tunnel to map the local port 3336 to the remote port 3306, you would connect to 3336 locally:

Source https://stackoverflow.com/questions/71895751

QUESTION

How to run command in background and also capture the output

Asked 2022-Mar-04 at 12:43

In the middle of the script, I have a command that exposes the local port with ssh -R 80:localhost:8080 localhost.run I need to execute this command in the background, parse the output and save it into a variable.

The output returns:

...

ANSWER

Answered 2022-Mar-04 at 12:43

Try this Shellcheck-clean code:

Source https://stackoverflow.com/questions/71348854

QUESTION

Kubernetes - How to access deployments in minikube?

Asked 2022-Jan-28 at 09:43

I have used the following configurations to deploy an app on minikube.

Deployment:

...

ANSWER

Answered 2022-Jan-28 at 09:17

The endpoints provided in the service description are the endpoints for each of the pods 172.17.0.3:80,172.17.0.4:80, when you deploy more replicas you will have more endpoints.
The angular-app service is bonded to port number 31503 and you can access your service on this port from cluster nodes (not your host machine).
minikube service angular-app will create a tunnel between your host machine and the cluster nodes on port 60611. This means anything that comes on 127.0.0.1:60611 will be redirected to 192.168.49.2:31503 and then one of the available endpoints.
The service will take care of balancing the load between all replicas automatically and you don't need to worry about it.
if you would like to access a specific pod you can use the below command:

Source https://stackoverflow.com/questions/70891156

QUESTION

Trying to expose an endpoint from a kubernetes pod to the internet/ browser/ API

Asked 2022-Jan-17 at 15:09

What am I trying to do

Trying to expose an endpoint from a kubernetes pod to the internet/ browser/ API on a Windows 11 platform with WSL 2 enabled and using Powershell, Docker on Windows, kubectl and minikube. This is essential for resolving my dev environment.

What happens

Based on whatever I could find in the docs and online, I saw Loadbalancer as the option used for <>. The tunneling never seemed to happen. I tested using the browser and using curl.

Environment Information

Windows: Windows 11 Pro
Docker on Windows: Docker Desktop 4.3.2 (72729)
Kubernetes: v1.22.3
Minikube: minikube version: v1.24.0

Commands - executed

Here are the commands that I executed to create the service.

1. Create the deployment ...

ANSWER

Answered 2022-Jan-17 at 15:09

kubectl expose deployment hello-world3 --type=LoadBalancer --port=8080

Source https://stackoverflow.com/questions/70600755

QUESTION

Make reverse TCP connection accept any amount of connections (like a normal TCP server)

Asked 2022-Jan-11 at 18:24

I'm trying to create a reverse proxy to a CONNECT-based HTTP proxy. The user who wants to use the proxy just treats machine A as an HTTP proxy. It works the following way:

machine B opens a TCP socket to machine A.
On machine A, a TCP socket is exposed on a port and all the incoming data is tunneled to machine B (io.Copy).
On machine B, all the data is tunneled to the local HTTP server and the socket to machine A.

Essentially this is a reverse-proxy behind an HTTP proxy. The reason it's this complex is because the HTTP proxy is behind NAT (on machine B) and therefore not accessible directly. The use case is being able to host an HTTP proxy behind a NAT.

Machine A tunnel (Go):

...

ANSWER

Answered 2022-Jan-10 at 19:54

When you do

Source https://stackoverflow.com/questions/70557765

QUESTION

Constant Error Trying to Use Proxy to Request IP via httpbin.org

Asked 2021-Dec-27 at 00:44

I've been looking around trying to find a solution, but nothing has worked. I have this code:

...

ANSWER

Answered 2021-Dec-27 at 00:44

Answer that worked

You need to remove the colon from proxy URL, the redundant one is before the user.

Another possibility (first answer)

I'm virtually sure that all problem is you've reached the limit of requests and the vendor forbids you to send more. You can test it with curl:

Source https://stackoverflow.com/questions/70490709

QUESTION

NodePort type service not accessible outside cluster

Asked 2021-Dec-17 at 09:28

I am trying to setup a local cluster using minikube in a Windows machine. Following some tutorials in kubernetes.io, I got the following manifest for the cluster:

...

ANSWER

Answered 2021-Dec-16 at 08:48

Almost always by default minikube uses docker driver for the minikube VM creation. In the host system it looks like a big docker container for the VM in which other kubernetes components are run as containers as well. Based on tests NodePort for services often doesn't work as it's supposed to like accessing the service exposed via NodePort should work on minikube_IP:NodePort address.

Solutions are:

for local testing use kubectl port-forward to expose service to the local machine (which OP did)
use minikube service command which will expose the service to the host machine. Works in a very similar way as kubectl port-forward.
instead of docker driver use proper virtual machine which will get its own IP address (VirtualBox or hyperv drivers - depends on the system). Reference.
(Not related to minikube) Use built-in feature kubernetes in Docker Desktop for Windows. I've already tested it and service type should be LoadBalancer - it will be exposed to the host machine on localhost.

Source https://stackoverflow.com/questions/70276205

QUESTION

Can AWS Lambda function call an endpoint over a VPN?

Asked 2021-Dec-16 at 21:30

I'm using an SMS sending service provided by a local mobile carrier. The carrier enforces clients to connect to their datacentre over a VPN in order to reach their endpoints. The VPN tunnel must always be kept open (i.e. not on demand).

Currently, I'm using a micro EC2 instance that acts as middleware between my main production server (also an EC2 instance) and the carrier endpoint.

Production Server --> My SMS Server --over VPN--> Carrier SMS Server

Is there a way to replace my middleware server with an AWS Lambda function that sends HTTP requests to the carrier over an always-on VPN tunnel?

Also, can an AWS Lambda function maintain a static IP? The carrier has to place my IP in their whitelist before I can use their service.

...

ANSWER

Answered 2021-Dec-16 at 21:30

s2svpn would be great but my question is can a lambda function HTTP request route through that connection?

Sure. Lambdas can have a VPC subnet attached. It's a matter of configuring the subnet routing table / VPN configuration to route the traffic to the carrier through the VPN endpoint.

Also, can an AWS Lambda function maintain a static IP?

No. Depends. A VPC-attached Lambda will create an eni (network interface) in the subnet with internal (not fixed) subnet iP address. But the traffic can be routed though a fixed NAT or a VPN gateway.

That's the reason I asked which IP address needs to be fixed, on what level. The VPN has a fixed IP address. If the carrier enforces the VPN address whitelisting, lambda clients should be working. If a fixed IP of the internal network is required then you will need a fixed network interface (e.g. using EC2)

Source https://stackoverflow.com/questions/70384096

QUESTION

Receiving HTTP 401 when accessing Cloud Composer's Airflow Rest API

Asked 2021-Dec-04 at 01:32

I am trying to invoke Airflow 2.0's Stable REST API from Cloud Composer Version 1 via a Python script and encountered a HTTP 401 error while referring to Triggering DAGS with Cloud Functions and Access the Airflow REST API.

The service account has the following list of permissions:

roles/iam.serviceAccountUser (Service Account User)
roles/composer.user (Composer User)
roles/iap.httpsResourceAccessor (IAP-Secured Web App User, added when the application returned a 403, which was unusual as the guides did not specify the need for such a permission)

I am not sure what is wrong with my configuration; I have tried giving the service account the Editor role and roles/iap.tunnelResourceAccessor (IAP-Secured Tunnel User) & roles/composer.admin (Composer Administrator), but to no avail.

EDIT: I found the source of my problems: The Airflow Database did not have the credentials of the service account in the users table. However, this is unusual as I currently have a service account (the first I created) whose details were added automatically to the table. Subsequent service accounts were not added to the users table when they tried to initially access the REST API, thus returning the 401. I am not sure of a way to create users without passwords since the Airflow web server is protected by IAP.

...

ANSWER

Answered 2021-Oct-29 at 10:32

ewertonvsilva's solution worked for me (manually adding the service account to Airflow using gcloud composer environments run --location= users -- create ... )

At first it didn't work but changing the username to accounts.google.com: made it work.

Sorry for not commenting, not enough reputation.

Source https://stackoverflow.com/questions/69718827

QUESTION

PowerShell - matching a regex against threadjob output works but doesn't populate $matches variable

Asked 2021-Nov-13 at 01:53

When I run the following script from a newly opened PowerShell console, the loop exits so there is clearly a match, but the $matches variable (and thus $matches.PORT) is not populated the first time around. When the script is run again, it is populated.

./ssh.ps1

...

ANSWER

Answered 2021-Nov-13 at 01:53

If the automatic $Matches variable isn't populated after a -match operation, the implication is that the LHS operand was a collection rather than a single string.

Therefore, loop over the value of $DATA and match each line individually:

Source https://stackoverflow.com/questions/69949674

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install Tunnel

You can download it from GitHub.
You can use Tunnel like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the Tunnel component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

Find more information at: