4 votes

Block IPs without receiving traffic

There's nothing you can do. You don't control the upstream infrastructure, so you can't drop packets before they reach you.
  • 5,168
3 votes

Connect mobile app to a server in LAN

Option 4. Pay someone who knows how to do this properly and securely - don't try to re-invent this particularly complex wheel themselves.
  • 101k
3 votes
Accepted

Can I measure the performance of a linux software bridge using this setup?

You can, but you need to put those three instances in different network namespaces or different VRFs so they won't figure out the "shorter" path. Also you can check was the shorter path ...
2 votes
Accepted

No subnet declaration for WAN

While the other answer is correct in that it is safe to ignore this warning, some people prefer "zero warning policy", by configuring the system in advance so it won't emit warnings for ...
2 votes
Accepted

What is the proper term for two IPs that can or can't reach each other?

You could say 10.0.0.10 has no route to 10.0.1.20. Since your example is that there is no route between 10.0.0.0/24 and 10.0.1.0/24, you could say that (as opposed to more specifically saying 10.0.0....
  • 3,059
1 vote

Network is gone when I start arp spoofing

The machines use the router to get to internet. So if you spoof the router's address, and don't also pretend to be a router, you lose connectivity. Turning on port forwarding isn't enough, because ...
  • 539
1 vote

Kubernetes Ingress not properly routing traffic

You need a loadbalancer, that is tipically provided by your cloud provider (which from that host name I guess it's AWS) which is very likely missing because you are also missing ingressClassName: ...
1 vote

Can you connect two PC ports with different subnets to one unmanaged switch?

If this is a 'one to one' connection between the camera/s and single PC then why not just put more NIC ports in the PC and run a cable between the cameras and these ports - then just set each '...
  • 101k
1 vote

Can you connect two PC ports with different subnets to one unmanaged switch?

It's not a terrible idea (but neither a particularly good one). Things should work really, but in the end you will need to have two gateways anyway (two routers or a rounter with multiple ports) which ...
1 vote

What is the correct term for a subnet "served" by a router?

The proper term for a router that is providing a route to another network, with a client device routing traffic through the router to reach another IP address in another network would be gateway. In ...
  • 3,059
1 vote
Accepted

Make IP route and routing rules permanent using nmcli on RHEL 8 / Rocky 8

I'm pretty new to networking, so please bear with me! I'm seeing extra terms such as proto static on the first line... You see proto static because you have created a static route. Routes created by ...
  • 42.3k
1 vote
Accepted

GKE pods to other VPC peered instance not reachable

I was able to fix this issue using ip masquerade daemonset created in GKE REF: https://github.com/kubernetes-sigs/ip-masq-agent
  • 121
1 vote

SFTP - files are only transferred in short bursts for one client - routing issue or SFTP/SSH configuration?

No, that pattern isn't normal. (Although using a python script to monitor the growth of the incoming files is not a good gauge. You should monitor the network bandwidth towards your server, filtered ...
  • 9,152
1 vote

Is there a remote filesystem for Linux that's encrypted and resilient against unreliable servers?

Remote connection encryption and shared filesystem are two different things and there is no point to make mix them. Set up a Wireguard tunnel between your client and server, and run any remote ...
1 vote

Network profile is public unless domain controller is in hosts file

You should not need to edit the hosts file. Joining a Windows Domain requires two fundamental things: Network connectivity to the Domain Controller (DC) DNS Resolution provided by the DC If you can ...
  • 3,059
1 vote

Use container hostname resolution with network=host

Docker macvlan sets up a software switch(bridge) on a host network interface of your choosing. This could be the same interface as the host, or a different interface or sub-interface with a ...
1 vote

LXC instances do not have IPv4 addresses

This worked for me: sudo ufw allow in on lxdbr0 sudo ufw route allow in on lxdbr0 sudo ufw route allow out on lxdbr0 Via: https://discuss.linuxcontainers.org/t/lxd-bridge-doesnt-work-with-ipv4-and-...
1 vote

Can I have my KVM guests on the same subnet as the host?

We want to have the QEMU/KVM guest VM to be on the same network subnet as the host. In this example, the host IP on the network has IP address 192.168.0.10. The host only has one and only one NIC. ...
  • 11

Only top scored, non community-wiki answers of a minimum length are eligible