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Diego Casati dcasati

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@dcasati
dcasati / keybase.md
Created April 13, 2019 16:52

Keybase proof

I hereby claim:

  • I am dcasati on github.
  • I am dcasati (https://keybase.io/dcasati) on keybase.
  • I have a public key ASCaWwh1ftEBAwbuCHA029qiOLWp-96IWAJtxxhSjeTCrQo

To claim this, I am signing this object:

@dcasati
dcasati / requirements.txt
Created March 7, 2019 00:04 — forked from zoni/requirements.txt
Example Python WSGI app which displays the hostname of the system it runs on when accessing /hostname
flask
@dcasati
dcasati / tcpdump-kubernetes
Created March 6, 2019 19:54
visualize a tcpdump capture from a Kubernetes POD on Wireshark in real time
run tcpdump on a POD and then (live) see that information through wireshark locally on my machine. the magic of ssh and fifo 
Topology
--------
[laptop with wireshark] ------> [AKS Node] ----> [POD (tcpdump is here)]. 
1. create the fifo on your local machine (where wireshark will run)
mkfifo /tmp/remote-capture.fifo
2. execute the following command to send traffic from within a POD to the stdout. This will then be redirected to the fifo locally
@dcasati
dcasati / ssh with public keys to a Cisco device
Created March 5, 2019 16:27
1. Create an user on the cisco device
username dcasati privilege 15 secret MYbiGsecrRETThatOnlyIknoW
2. Convert your pub key to less than 254 characters (otherwise it will not work)
$ fold -b -w 72 ~/.ssh/id_rsa.pub
3. Create the key
conf t
ip ssh pubkey-chain
@dcasati
dcasati / gist:f116827c425c4d2849f7ebd5477c1452
Last active March 5, 2019 22:44
i3wm on a multi-monitor setup (laptop + external display)
xrandr --output HDMI1 --scale 2x2 --mode 1920x1200 --fb 3840x4200 --pos 0x0
xrandr --output eDP1 --scale 1x1 --pos 320x2400
@dcasati
dcasati / freebsd-bluetooth-mouse.txt
Created July 5, 2018 21:00
Configure FreeBSD Bluetooth Mouse
Add to /boot/loader.conf:
ng_ubt_load="YES"
Add to /etc/rc.conf:
hcsecd_enable="YES"
sdpd_enable="YES"
bthidd_enable="YES"
Reboot, or run:
@dcasati
dcasati / export-kubeconfig-from-aks
Created February 6, 2018 15:30
Export KUBECONFIG from AKS
az aks get-credentials --resource-group k8s-demo-ss --name k8s-demo-cluster-ss --file kubeconfig-ss
@dcasati
dcasati / run-previous-az-cli-version
Created January 11, 2018 18:24
run a previous version of the az cli
docker run -v ${HOME}:/root -it azuresdk/azure-cli-python:2.0.23
@dcasati
dcasati / synergy_2.0.4_macos_HighSierra_and_Ubuntu_17.10
Created January 2, 2018 21:07
# On Ubuntu, you need to add the following line to your synergy.service file:
# 1. Edit the sudo vi /lib/systemd/system/synergy.service
[Service]
Environment=DISPLAY=:1
# 2. reload systemd and the synergy service
sudo systemctl daemon-reload
sudo restart synergy
@dcasati
dcasati / kube-dns-port-forward.sh
Last active October 21, 2024 19:46
kubernetes - Kube-DNS port forwarding and DNS querying.
# Use dig to find out about the k8s records
# dig +vc -p 5300 @127.0.0.1 cluser.local
# Use dig to retrieve an A Record
# dig +vc -p 5300 @127.0.0.1 A cb-example-0000.default.svc.cluster.local
# Use dig to do a reverse lookup (-x flag)
#dig +vc -p 5300 @127.0.0.1 -x 10.0.50.156
# Add the port forward