Category "networking"

Can't connect to Go Server in Docker container

I am trying to run a an HTTP Server written in Golang inside of a docker container and I keep getting connection refused. Everything is being run inside of an U

How to control Scapy sending packets speed?

I am using Scapy to forge random tcp and udp flows to test packet-in flooding in my SDN experiment. But I don't know how to control Scapy sending packets speed.

Access Azure Instance Metadata Service (169.254.169.254) from Windows docker container

Azure VM can query the Instance Metadata Service located at 169.254.159.254 for data. However this does not work from within a Windows container running on the

How can I detect a server ping using URLSessionWebSocketTask?

Using URLSessionWebSocketTask, a server ping is automatically responded to by a pong from the client. Still, can the client observe that a ping/pong occurred? (

Error: listen EACCES: permission denied 0.0.0.0:3001

I have gone through many answers here, none of them fixed my error. Here What I have tried so far. Environment: win 10 pro v2004 build 19041.29 node v12.14.1

Can't SSH into RancherOS which is installed in iohyve in FreeNAS within a virtual machine

I'm preparing for a Server upgrade, but before doing so I want to have a dry-run within a VM first. I'm running Linux Mint on a laptop. Currently I have FreeNAS

Can't ping github but can access github via browser at my workplace. Am I out of luck?

I can access Github via the browser at my workplace, but cannot git clone because fatal: unable to access 'http://github.com/user/project.git/': Could not res

Virtual wlan interface with systemd-netword

i would like to ask how i can add a virtual wifi interface permanently on a system that runs systemd-networkd. The purpose is to have 2 access points (2.4/5ghz)

Hostapd fails to create MACsec interface after successful authentication

I am trying to set up a remote connection for MACsec utilizing hostapd (v2.11-devel). I have compiled the software with: CONFIG_DRIVER_WIRED=y CONFIG_MACSEC=y C

bonding interfaces, can't reach the outside world

I am trying to bond two physical ifaces together with netplan/ubuntu 20.04. The first iface, eth0 has a public routable ip provided my cloud provider. eth1 is

Docker Compose with multiple VPN network for multiple services

I have a docker-compose file like this: version: '3' services: zookeeper: image: wurstmeister/zookeeper container_name: zookeeper restart: alway

Can an OpenVPN Route over TEST-NET-1 (RFC 5735)

Background I have a strange use-case where my VPN cannot be on any of the private subnets, but, also cannot use a TAP interface. The machine will be moving thro

Closed ports on docker host (OSX) are staying/reporting open on the internal docker network

After upgrading Docker to 4.6.0 on OSX 12.3 I've had a bit of an odd issue when I stop the xdebug listening client in PHPStorm, it seems that subsequent request

Using a Raspberry Pi 4 to host react web app [closed]

I have some broad questions on the flow of how to set up my web app on Raspberry Pi. I've built a React App on my local PC, it hits up an node

Where do load balancers sit in microservice architecture?

I'm planning on creating a brand new backend with microservices. I've been looking into infrastructure and I'm unsure as to where load balancers come in. Does t

How to stop host or client in unity netcode?

When I disconnect my server and go to the menu scene, there comes two NetworkManager Objects but a they are implementing the Singleton pattern and it in itself

Browser from Windows Sandbox cannot access localhost

I'm running a webserver on my Windows machine on port 4200. If I open a browser, I can communicate with that webserver by going to localhost:4200 I'd like to c

How do I let a user delete a node or edge in a PyVis network graph?

Our network graph is noisy and needs to be understood, broken up in to separate clusters, and generally cleaned up. How do people do that is my general quest

How to sort a list of lists with IP subnets python

I am a complete noob and have google made my first python script. I am opening a 2 files and removing list 1 from list2. Once list2 has been modified to remo

Go - check if IP address is in a network

Given: a network address A: (172.17.0.0/16) and an IP address from a host B: (172.17.0.2/16) how can we say if B is in A? All addresses are string variables in