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Questions tagged [networking]

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Networking refers to the technologies and techniques that enable the interconnection of devices and applications allowing them to communicate electronically.

15,837 questions
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1 answer
172 views

I am setting up a Wazuh home lab in VMware Workstation. While downloading the Wazuh installation script on an Ubuntu Server VM, the download fails with: curl -O https://packages.wazuh.com/4.14/wazuh-...
Score of 0
1 answer
67 views

My apologies if this isn't the right forum. I have a friend who has been out of the labor force for more than ten years caring for a family member. Although he's never worked in IT, he's intensely ...
Score of -1
2 answers
92 views

Problem My current approach is WireGuard VPN access to each UniFi Cloud Gateway. However, mobile operating systems generally allow only one WireGuard tunnel to be active at a time. Switching between ...
Score of 0
2 answers
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Let's say I have a reverse proxy server (proxy) and a backend server actually handling the traffic (backend). I use a reverse SSH tunnel to send the traffic to the backend server. So I setup the proxy ...
Score of 3
1 answer
366 views

I'm connecting to a mobile computer (SBC) using wifi. This computer is transmitting data continuously, in the form of small and frequent UDP packets. I receive the data fine on my PC, but while the ...
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1 answer
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I have a Palo Alto PA-VM in AWS set up for a "bump-in-the-wire" firewall for traffic in the same region but different VPC and different account with a Gateway Load-Balancer (GWLB) in between....
Score of 3
2 answers
267 views

I have a system (Ubuntu 24.04) with a single NIC. The server gets an IP via DHCP from an external system. This server is running virtual machines via KVM. I would like to create a network bridge that ...
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0 answers
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We have at the moment an Openshift 4.21 cluster where all networks are in the default namespace and all the VMS as well. The "Migration Toolkit for Virtualization" is in the namespace ...
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1 answer
201 views

I have a server running Linux with two network cards, eth1 and eth2. These two interfaces are connected to gateway1 and gateway2, respectively, and there are two default routes. For a specific host, I ...
Score of 1
1 answer
207 views

I have a Linux host running several LXC containers. I am managing the firewall with UFW. I have the following situation: I cannot reach a remote mail server on ports 25, 993, 465, or 587 from any of ...
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I have a hardened Debian 12 VM running on an ESXI host. It is used for file transfer and is open to the Internet. Monitoring using Zabbix (seriously powerful open source monitoring system), I can see ...
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0 answers
92 views

Recently I was working with the AWS firewall and I had a problem bypassing the whole firewall, the configuration is: stateless group: rule_1 : if the destination is <work_load_subnet> -> ...
Score of 0
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My cluster info : Kubernetes version: 1..3.7 Deployment: bare metal Installation method: kubesprayHost. OS: Rocky Linux 9 CNI : Calico v3.30.5 vxlan, with ipvs later nftables. with strictARP. CRI : ...
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67 views

I have an issue with my Omada configuration. Trying to connect to the Internet using Windows Subsystem for Linux (WSL) fails. If I change my wifi to mobile hotspot, it works. So I know it's an Omada ...
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I am facing a networking issue in my Kubernetes cluster involving an external F5 Load Balancer, NodePort services, and Network Policies. Here is my current setup: The Infrastructure: Ingress: ...

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