Running Intel 7260 in AP mode under Ubuntu 14.04

I would like to use the built-in WiFi on a Gigabyte mini-ITX system I just bought as an access point. And for some reason I am going in circles. lspci | grep -i wireless reveals: 04:00.0 Network...

Mesh network with OpenWrt: clients can not ping each other

I am building a WiFi mesh network using Openwrt 802.11s and Tp-Link wr703n mini routers for my final year project. OLSR is running as a routing protocol. I am using Linux. Total of 4 routers ...

How can I use Istio to create service aliases?

According to the Istio documentation, VirtualServices should be able to route requests to "a completely different service than was requested". I would like to use this feature give services...

How to call the services within a mesh in ISTIO?

I am using service mesh https://istio.io/ installed on top of kubernetes and have installed the example https://istio.io/docs/examples/bookinfo/, that ISTIO provides on their website. Assume,...

Parse JSON nested arrays in Excel in specific way

I got some help and I wasn't sure if I should continue this in the original question or start a new one since technically it is a new question (I chose new but let me know what you guys prefer for...

Bluetooth Scans Devices, But Cannot Write to Device After Frequent Scanning

Use Case: I wrote a security app, which runs alongside a bluetooth Mesh. The mesh contains custom lights and alarms. To check the status of the mesh system, my app scans one of the nearest devices...

Long Lived GRPC Calls

I am wondering the best practice for long lived GRPC calls. I have a typical Client --> Server call (both golang) and the server processing can take up to about 20-30 seconds to complete. I need...

How to send unicast packet to neighbour in Contiki-NG?

Is it possible in Contiki-NG to send a custom packet from a udp-client node to a neighbour using link address from neighbor cache? I am looking a way to avoid sending icmpv6 packet because it is...

Istio Circuit Breaker who trips it?

I am currently doing research on the service mesh Istio in version 1.6. The data plane (Envoy proxies) are configured by the controle plane. When I configure a Circuit Breaker by creating a...

Istio/CORS - can faking ORIGIN trigger a request block on mesh side?

Based on https://github.com/istio/istio/issues/23757 it's been quite some time now that I get no answer about it, so I realized that most likely I don't understand the internals and I need to...

GCP Memorystore Redis Connection refused after enabling Istio

We have an existing GKE Cluster (1.16.9-gke.6) with some services talking to GCP Memorystore Redis instance. However, after enabling Istio (Version 1.16.3) on those pods, we started seeing...

Programmatically authenticating and accessing service inside AWS EKS cluster from outside when ALB is used

We build a Kubernetes application that is deployed by our users, our users connect to the deployed API server using a client and then use that client to submit jobs. This question is about...

Configuring multiple gateways in a batman-adv mesh network

I have been able to set up a wireless mesh network using batman-adv running on a few Raspberry Pis. The Pis are able to detect each other on the mesh, communicate between each other, and share an...

How do I scale up JBoss AMQ 6.3 in openshift?

I have a default setup of JBoss AMQ in OpenShift and want to scale it up to two pods. How do I accomplish this? Just scaling it leads to the following: INFO | Using Persistence Adapter:...

Direct communication between Javascript in Jupyter and server via IPython kernel

I'm trying to display an interactive mesh visualizer based on Three.js inside a Jupyter cell. The workflow is the following: The user launches a Jupyter notebook, and open the viewer in a...

How to collect and pass b3 propagation headers in grpc client request using opentracing api?

I was using https://github.com/opentracing-contrib/java-grpc with jaegar tracer for enabling tracing in my grpc client program. Now I would like to use istio service mesh to handle tracing in...

TLS handshake with custom CA using wildcard egress

I’m trying to setup istio (v1.7.3) on AKS (v1.16.13) in a way that for all HTTPS requests within my domain, the TLS handshake is performed transparently by egress gateway. I ended up with...

Bitnami Postgresql with Kubernetes Istio

I started to build a Postgresql Ha cluster on Kubernetes with sesrvice mesh istio. Before I enabled istion injection in namespace I tried it without istio. It worked well. After I enabled the...

Adding multiple video+audio streams in simple peer

I am trying to build a webRTC video chat app that also has the option to load a local video file to browser and then stream it to peers. It's a group video chat in a mesh topology, therefore for n...

Spring Boot Cloud + Hashi Consul + Connect Proxy : How to configure bootstrap for config?

I am putting together a proof-of-concept using the latest spring boot, HashiCorp Consul & Connect. Basically, I want to show how webflux web services can use Consul for configuration and use...

hostapd Interface initialization failed in DFS-CAC-START

Recently, I like to upgrade my router from 802.11n to 802.11ac. I bought an Atheros QCA6174 mini PCI-E Wireless card to replace my old card. Unfortunately, It can work with 802.11n 2.4G perfectly...

How to get GRPC's round_robin load balancing to work using grpc-java in Kubernetes cluster?

I have been attempting to get GRPC's load balancing working in my Java application deployed to a Kubernetes cluster but I have not been having too much success. There does not seem to be too much...

Updating kubernetes with kOps causes calico-node to fail with "BIRD is not ready: BGP not established"

Let me preface this by saying this is running on a production cluster, so any 'destructive' solution that will cause downtime will not be an option (unless absolutely necessary). My environment I...

ThreeJS component working in VueJS 2 but not 3

I'm upgrading my app to VueJS 3. I read that you could keep the same components. But I have an error in the console now, although I didn't change anything. Here is my component: <template> ...

Istio: Unable to set up mutual TLS origination with an egress gateway, custom CA certificates

I am having problem with configuration of mutual TLS origination with an egress gateway. I am using the configuration provided in the documentation:...

How can we set a total request timeout or drop requests in Node (when using the cluster module)?

This question seems innocent because we can read https://nodejs.org/api/http.html and spot the following options: server.requestTimeout = 1; server.keepAliveTimeout = 1; server.timeout =...

Received plaintext http traffic on an https channel, closing connection

I have deployed ECK (using helm) on my k8s cluster and i am attempting to install elasticsearch following the docs....

Shared istio egress gateway in multi-cluster/multi-primary mesh

We are trying to setup an egress gateway in a multi-cluster/multi-primary mesh configuration where the egress gateway is located in only one cluster but used from both. diagram of desired...

Sudden Tensorflow / Keras Google Colab dependency problems `AttributeError: module 'tensorflow._api.v1.compat.v2' has no attribute '__internal__'`

I have running a machine learning model (Matterport's Mask R-CNN) in google colab for a couple of weeks. All of a sudden today I am unable to run any of my notebooks due to I think some kind of...

Configure ASP.NET Core gRPC to use SSL/TLS on both the server and client

I am going to repost this once again. If you don't like my question, there are tons of other posts here that you can apply your personal (and incorrect) judgement to. There is only one issue...