Questions tagged [networking]
The networking tag has no usage guidance.
27
questions with no upvoted or accepted answers
2
votes
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answer
385
views
How to access a container/service port in swarm without publishing the port to the outside world?
It is possible to docker-compose to forward a port to the container from localhost only, by writing the desired ports configure in docker-compose.yml, e.g. 127.0.0.1:8080:80.
In docker swarm this does ...
- 21
2
votes
0
answers
22
views
Connecting to MySQL Remotely on Azure VM
I am having trouble connecting remotely to my MySql install that runs on an Azure VM.
Here is what I did:
Ubuntu VM with MySql 5.7 installed
Bind Address set to 0.0.0.0
User granted rights with ...
- 121
1
vote
0
answers
24
views
How to create a VPN Connection to Azure VNet to use the VNet's Public IP Address for internet traffic
I have a number of developers working remotely that need to access external services that require a static IP address.
We created an Azure Virtual Network with a public IP that we wanted to use for ...
- 111
1
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0
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45
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How to execute a "hello redis" sample python script on a container from the host?
How do I execute this "Hello Redis!!!" sample from the host?
root@mordor:~#
root@mordor:~# docker container ls
CONTAINER ID IMAGE COMMAND CREATED ...
1
vote
1
answer
127
views
How to migrate away from `docker-machine create`?
I have an old script that uses docker-machine create to create an number of Hyper-V VMs and run a server application inside each one, using docker. It was done this way because the application ...
- 111
0
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0
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7
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Azure routing question
I have a question about how azure organize and see routing. Let's say you have virtual network gateway and this VNG has 4 eBGP peering to different sites. From all of them it learns prefix 10.1.1.0/24 ...
- 101
0
votes
1
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9
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OpenStack API Access over secondary ethernet connection or NIC
I am trying to configure my server to utilize a secondary NIC card. I want the server to publish API access on both NICs at the same time. See the attached picture for a configuration diagram that ...
0
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32
views
How are dev servers for testing working and available outside of VPN?
I'm a web developer and at work we have different servers (we call them stands) for testing our deployed app.
In order to deploy our app we connect via ssh to one certain server and start a process in ...
- 101
0
votes
0
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17
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EKS: kubectl exec does not respect streamingConnectionIdleTimeout
Using EKS with Kubernetes 1.21, managed nodegroups in a private subnet. I'm trying to set the cluster up so that kubectl exec times out after inactivity regardless of the workload being execed into, ...
0
votes
1
answer
26
views
How are containers secured with MACVLAN networks?
Containers cannot be connected both to an internal bridge and to the host network at the same time, according to this question. However, this is what I need; I want a set of containers to be connected ...
- 11
0
votes
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19
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Allowing going trafic with Egress and Denying it with Ingress in NetworkPolicy in Kubernetes
I hope you're all doing well and being safe.
I have two pods A and B in two different namespaces.
I wish that pod A in namespace-a has access to every pod on other namespaces so I ve deployed this ...
0
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0
answers
18
views
Launch EKS without aws-node
EKS seems to launch aws-node daemon on every new cluster. How can I prevent this?
Context - I'd like to start a cluster with Cilium out of the box, running aws-node prevents this.
- 111
0
votes
0
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16
views
port forward azure VM to internal pod/service
I've got an azure VM running, say on public ip 20.20.20.20
On the VM a local kubernetes cluster is running with "kind".
An nginx pod + service is running on 172.18.0.2:32000 and is ...
- 243
0
votes
0
answers
185
views
How in docker-compose do I bind a specific host IP address to a docker service for outgoing requests?
How in docker-compose do I bind a specific host IP address to a docker service if I want to send any http/https request from the docker service from that selected IP?
For example host server has eth0, ...
- 101
0
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0
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37
views
How do we use napalm library with ttp module at the same time?
How can i parse the data after getting it with napalm ? First I was using "get_network_driver". I want to use TTP pars method under interface.
Library
from napalm import get_network_driver
...
- 111
0
votes
0
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22
views
How to securely connect Azure Kubernetes to on premise services?
I have a couple of linux servers in different physical locations (countries) and all these servers host the same application. I want to be able to safely reach these servers from my kubernetes ...
- 1
0
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0
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49
views
Disable public DNS for EKS with private API server
When EKS API server endpoint access is set to 'Private', as per the docs:
The cluster's API server endpoint is resolved by public DNS servers to a private IP address from the VPC. In the past, the ...
- 101
0
votes
1
answer
13
views
How can I find out what ml2 extension drivers are enabled?
According to this document on "The Networking service internal DNS resolution", a feature I need requires the dns extension driver in OpenStack,
[ml2]
extension_drivers = port_security,dns
...
- 470
0
votes
1
answer
13
views
ansible network automation: log commands all commandes from mutiple plays
Trying to write a script to publish basic configurations for any futur new devices. Also assert compliancy of basic configuration for devices in production.
Trying to gather all the lines executed, on ...
- 51
0
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21
views
ansible network automation: log commands in checkmode, mutiple plays
Trying to write a script to publish basic configurations for any futur new devices. Also assert compliancy of basic configuration for devices in production.
Trying to gather all the lines executed, ...
- 51
0
votes
1
answer
16
views
Random delay in port binding for distributed_virtual_router and router_centralized_snat in openstack neutron
I have created a private network called "Private_Network" in the range of 192.168.220.0/24 plus a virtual router called "Virtual_Router" inside openstack which is connected to the ...
- 1
0
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0
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6
views
Stream data fast and in real time from a gateway device & store the data for heavier processing later
I am mainly trying to get data streamed as fast as possible to a screen. I will just mention what is the current situation, write my own solution/speculation to resolve it.
I'm not a DevOps. I'm a dev ...
- 113
0
votes
0
answers
17
views
K8s using Calico or VPC-cni to isolate namespaces on EKS
I need to isolate k8s namespaces on EKS (not Fargate),
The only container that need to send requests to my server is ingress and communication between the same namespace.
- 101
0
votes
0
answers
8
views
How Public facing haproxy node can see on premise haproxy container?
I have internet facing node running haproxy and openvpn server which is connected to a container which is running openvpn client and to that container I have connected another container running ...
- 133
0
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0
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74
views
Install cilium as network plugin for K8s
ITNOA
I install K8s control plane node with kubeadm init with custom IP for control plane endpoint address and custom IP for API server address
I try to install cilium as network plugin for K8s
I run ...
- 101
0
votes
1
answer
34
views
How do I disable ICMP echo responses within a Docker container?
I want to be able to change the /proc/sys/net/ipv4/icmp_echo_ignore_all file from within my Docker container, but I get the
bash: /proc/sys/net/ipv4/icmp_echo_ignore_all: Read-only file system
error ...
- 1
-1
votes
1
answer
1k
views
Cannot resolve services with service name inside a kubernetes pod
I cannot access a pod from another pod with its service name. Getting error as
cannot resolve host svcname
When i try to view the information of /etc/resolv.conf, i do see ec2.internal as searches ...
