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Raspberry Pi 3 B+ WiFi Ethernet Bridge - Will Haley
The goal is to connect a desktop to a WiFi network via a Raspberry Pi. We will use a Raspberry Pi 3 B+ as a bridge between the desktop and the WiFi network. The...
raspberrypi  dhcp  wire  less  ip  table  server  dns  bridge 
january 2019 by ianweatherhogg
dotfiles/qemu-vlan at master · tokiclover/dotfiles
mirror of https://gitlab.com/tokiclover/dotfiles. Contribute to tokiclover/dotfiles development by creating an account on GitHub.
gist  qemu  network  topology  ip  table  dhcp 
november 2018 by ianweatherhogg
Avoiding kernel crashes when under DDoS attacks with CentOS 5 | stewart a.
iWeb Technologies has recently been the victim of several [1 2 3 4] distributed denial of service (DDoS) attacks over the past three or so weeks and it's become a rather irritating issue for iWeb's customers. Not all of their server or their customer's co-located servers are affected in each attack, but often during the attacks there is a general slowdown on their network and a minority of the servers (both hosted and co-located) experience some packet loss. The server hosting this w...
ip  table  security 
november 2018 by ianweatherhogg
Blocking EC2 Metadata service from Docker containers in AWS | OpsTips
Check out how to make sure Docker containers running in AWS are unnable to access the EC2 metadata service.
docker  amazon  router  table  5* 
september 2018 by ianweatherhogg
Using network namespaces and a virtual switch to isolate servers | OpsTips
Yet another blog post on how to create a virtual network that connects network namespaces using a brdige, veth pairs and iptables.
network  name  space  router  bridge  5*  virtual  switch  load  balance  ip  table 
september 2018 by ianweatherhogg
Blocking ingress traffic to Docker swarm worker machines | OpsTips
Once a Docker Swarm Mode cluster is formed, all nodes participate in the routing mesh and accept ingress traffic. Check out how to block that feature.
docker  cluster  ip  table  topology  5* 
september 2018 by ianweatherhogg
Virtualizing with KVM in Linux
A journal about computing, human predilections, and random krakaboom.
qemu  network  vde  5*  spice  vnc  ip  table  tap  device 
january 2018 by ianweatherhogg
Custom routed network — libvirt Networking Handbook — Jamie Nguyen
A Linux bridge without a real Ethernet device is considered virtual. To manually create the virtual bridge, run these command
libvirt  ip  table  5*  dns 
october 2017 by ianweatherhogg
Building a Professional Firewall with Linux and Iptables
My first position out of university was working as a firewall engineer for a large credit card processing company. It's where I learned the way of the pack
ip  table  firewall  4* 
july 2017 by ianweatherhogg
Debugging PXE boot with QEMU
You might run into configuration problems and booting an actual machine is time-consuming for testing. My situation, for example, was that I could not get th...
qemu  test  debug  linux  pxe  boot  4*  archlinux  ip  table 
july 2017 by ianweatherhogg
Let's code a TCP/IP stack, 5: TCP Retransmission
At this point we have a TCP/IP stack that is able to communicate to other hosts in the Internet. The implementation so far has been fairly straight-forward, ...
tcp  stack  curl  network  protocol  lowlevel  4*  ip  table  dump  tap 
july 2017 by ianweatherhogg
Virtualizing with KVM in Linux
A journal about computing, human predilections, and random krakaboom.
qemu  nix  vde  spice  ip  table  network  bridge  4*  libvirt 
april 2017 by ianweatherhogg
Debugging PXE boot with QEMU
In my earlier post, I defined the steps for setting up a PXE boot environment.
pxe  boot  qemu  ip  tunnel  tap  table  4* 
march 2016 by ianweatherhogg
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