netcat | Simple netcat on go | Networking library

 by   yanzay Go Version: Current License: No License

kandi X-RAY | netcat Summary

kandi X-RAY | netcat Summary

netcat is a Go library typically used in Networking applications. netcat has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Simple netcat on go
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            kandi-support Support

              netcat has a low active ecosystem.
              It has 6 star(s) with 1 fork(s). There are 1 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              netcat has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of netcat is current.

            kandi-Quality Quality

              netcat has 0 bugs and 0 code smells.

            kandi-Security Security

              netcat has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              netcat code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              netcat does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              netcat releases are not available. You will need to build from source code and install.
              It has 218 lines of code, 12 functions and 4 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

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            netcat Key Features

            No Key Features are available at this moment for netcat.

            netcat Examples and Code Snippets

            No Code Snippets are available at this moment for netcat.

            Community Discussions

            QUESTION

            Connection Refused to Rabbitmq container from Spring boot app Container
            Asked 2022-Mar-29 at 16:44

            I'm facing an error to connect from my spring boot app container to Rabbitmq.

            I have attached the two docker containers (Rabbitmq and spring boot app) with bridge network in my docker compose file:

            ...

            ANSWER

            Answered 2022-Mar-29 at 16:44

            At the end of the journey, I have found the solution, and yes after modifying the spring properties to these below new properties:

            Source https://stackoverflow.com/questions/71647584

            QUESTION

            Piping output of `echo` to netcat fails while piping output of `printf` passes
            Asked 2022-Mar-11 at 15:29

            I am sending a command to a power supply device over TCP Ethernet using netcat (nc) on Linux Ubuntu 18.04 and 20.04. If I use echo the device fails to properly receive the command, but if I use printf it works fine. Why?

            ...

            ANSWER

            Answered 2021-Nov-17 at 18:46

            Ugh! Found it.

            Ensure you're not accidentally sending a newline char (\n) at the end of the command

            It looks like echo adds a trailing newline to the string, whereas printf does NOT, and this trailing newline character is interfering with the device's ability to parse the command. If I forcefully add it (a newline char, \n) to the end of the printf cmd, then it fails too--meaning the device will not respond to the command as expected:

            Source https://stackoverflow.com/questions/70001189

            QUESTION

            Minikube with PhpStorm and Xdebug
            Asked 2022-Feb-21 at 10:58

            I have developed a PHP based application. This application runs actually in Kubernetes and mainly using minikube on my machine. I am using PhpStorm as IDE and I also use Xdebug for debugging purposes.

            What I know from my researches are that when you start PhpStorm with Xdebug, it will start listening on a port (9000 by default). When I connect to my container (in minikube), I am able to reach the IDE at the port 9000 with netcat :

            ...

            ANSWER

            Answered 2021-Dec-15 at 09:29

            If you try to debug a script with xdebug_info() in it, it will tell you exactly what Xdebug tried to do, if anything at all.

            You can also make a log file by setting xdebug.log=/tmp/xdebug.log and xdebug.log_level=10, and then this log file will show even greater detail as to what went on.

            Please note that although a connection can be open, you might not have the right process. Port 9000 is also used by PHP-FPM, which is why Xdebug 3 now uses 9003 by default.

            Source https://stackoverflow.com/questions/70360562

            QUESTION

            Java - 422 Unprocessable Entity using RestTemplate
            Asked 2022-Feb-17 at 15:57

            I have two services, Am trying to send a GET request from Service A, To make Service B send a Post request to Redmine Server.

            Am getting 422 Unprocessable Entity: "{"errors":["Name cannot be blank","Identifier cannot be blank"]}"

            And here is what I have already tried :

            ...

            ANSWER

            Answered 2022-Feb-17 at 15:57

            Since your method would accept an object node as an input so you can do something like this:

            Source https://stackoverflow.com/questions/71062846

            QUESTION

            Netcat exits on UDP response
            Asked 2022-Feb-16 at 12:24

            Could you explain the "weird" behaviour? I'm running netcat on Linux, as a UDP echo server:

            ...

            ANSWER

            Answered 2022-Feb-16 at 12:24

            This is a ncat limitation.

            Let's use strace to look into what ncat is up to. Conveniently, strace has -e option to filter system calls, e.g. -e %net for logging network-related syscalls. Let's start the server first:

            Source https://stackoverflow.com/questions/71021238

            QUESTION

            Python server does not show output correctly
            Asked 2022-Feb-11 at 11:36

            for a university project I am testing the log4j vulnerability. To do this, I use a python server that connects to the java client by creating a reverse shell. Everything works except the output to server which is not displayed correctly. Specifically, the server shows the output of two previous inputs and I'm not understanding why. I'm new to python and java programming so I'm a little confused.

            Initial project: https://github.com/KleekEthicalHacking/log4j-exploit I made some changes and added a python socket to handle the reverse shell.

            PS: with netcat it seems to work fine but command with some space non work (ex: cd .. not work)

            For run this project i use kali linux (python server) and ubuntu (java webapp). This code does not yet manage clients with windows os

            poc.py + exploit class:

            ...

            ANSWER

            Answered 2022-Feb-11 at 11:36

            Now works. I added time.sleep(0.2) after each sendall in rce.py

            Source https://stackoverflow.com/questions/71063137

            QUESTION

            how to restrict a pod to connect only to 2 pods using networkpolicy and test connection in k8s in simple way?
            Asked 2022-Jan-27 at 10:13

            Do I still need to expose pod via clusterip service?

            There are 3 pods - main, front, api. I need to allow ingress+egress connection to main pod only from the pods- api and frontend. I also created service-main - service that exposes main pod on port:80.

            I don't know how to test it, tried:

            ...

            ANSWER

            Answered 2022-Jan-26 at 15:29

            Network policies and services are two different and independent Kubernetes resources.

            Service is:

            An abstract way to expose an application running on a set of Pods as a network service.

            Good explanation from the Kubernetes docs:

            Kubernetes Pods are created and destroyed to match the state of your cluster. Pods are nonpermanent resources. If you use a Deployment to run your app, it can create and destroy Pods dynamically.

            Each Pod gets its own IP address, however in a Deployment, the set of Pods running in one moment in time could be different from the set of Pods running that application a moment later.

            This leads to a problem: if some set of Pods (call them "backends") provides functionality to other Pods (call them "frontends") inside your cluster, how do the frontends find out and keep track of which IP address to connect to, so that the frontend can use the backend part of the workload?

            Enter Services.

            Also another good explanation in this answer.

            For production you should use a workload resources instead of creating pods directly:

            Pods are generally not created directly and are created using workload resources. See Working with Pods for more information on how Pods are used with workload resources. Here are some examples of workload resources that manage one or more Pods:

            And use services to make requests to your application.

            Network policies are used to control traffic flow:

            If you want to control traffic flow at the IP address or port level (OSI layer 3 or 4), then you might consider using Kubernetes NetworkPolicies for particular applications in your cluster.

            Network policies target pods, not services (an abstraction). Check this answer and this one.

            Regarding your examples - your network policy is correct (as I tested it below). The problem is that your cluster may not be compatible:

            For Network Policies to take effect, your cluster needs to run a network plugin which also enforces them. Project Calico or Cilium are plugins that do so. This is not the default when creating a cluster!

            Test on kubeadm cluster with Calico plugin -> I created similar pods as you did, but I changed container part:

            Source https://stackoverflow.com/questions/70848030

            QUESTION

            How to install nc in mysql container
            Asked 2021-Dec-18 at 18:01

            I am getting this message nc command is missing and by doing some R&D, I got to know that in order to resolve this, (I think) I need to run below command in MySQL container in docker-compose

            ...

            ANSWER

            Answered 2021-Dec-17 at 06:33

            You could build and publish your own container image if you wanted with a dockerfile like this

            Source https://stackoverflow.com/questions/70389175

            QUESTION

            Sending Email with Mailkit is not working on ubuntu server getting TimeoutException
            Asked 2021-Dec-05 at 14:32

            I am trying to send en email with Mailkit and locally(windows) it is working fine but on the server(ubuntu 20.04) it is not.

            I opend the port 465 using ufw(firewall) but it is still not working. I get an Timout* when calling

            ...

            ANSWER

            Answered 2021-Nov-29 at 16:39

            Netcat works on your Windows machine for the same reason that MailKit works on your Windows machine.

            Your Windows machine has an unblock route to the mail server.

            Your Ubuntu server, on the other hand, does not have an unblocked route to the mail server, so it fails to connect there.

            You need to figure out your firewall and/or routing tables on your Ubuntu server and fix that to allow connecting to the mail server.

            Source https://stackoverflow.com/questions/70147368

            QUESTION

            Mininet script sending traffic from virtual machine's IP instead of host machines'
            Asked 2021-Dec-05 at 11:04

            In a python3/mininet script I have a tested, valid dictionary of host machines and their IP addresses. For each of the keys - by iterating dictOfAllHostsAndIPs.keys() - I execute a script on each emulated host's terminal

            ...

            ANSWER

            Answered 2021-Dec-05 at 11:04

            I think I see what is going on in the source, but i have not run the framework to confirm it.

            It looks like mininet inatalls a NAT rule for every node:

            Source https://stackoverflow.com/questions/69469784

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

            Vulnerabilities

            No vulnerabilities reported

            Install netcat

            You can download it from GitHub.

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