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Jonsy13 / Netfilter-IPTables-Diagrams.md
Created March 29, 2022 08:19 — forked from nerdalert/Netfilter-IPTables-Diagrams.md
Linux NetFilter, IP Tables and Conntrack Diagrams

Linux NetFilter, IP Tables and Conntrack Diagrams

IPTABLES TABLES and CHAINS

IPTables has the following 4 built-in tables.

1) Filter Table

Filter is default table for iptables. So, if you don’t define you own table, you’ll be using filter table. Iptables’s filter table has the following built-in chains.

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Jonsy13 / kind-metrics-server.yaml
Created June 6, 2021 14:05 — forked from hjacobs/kind-metrics-server.yaml
Metrics Server API deployment manifests for Kubernetes kind
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: system:aggregated-metrics-reader
labels:
rbac.authorization.k8s.io/aggregate-to-view: "true"
rbac.authorization.k8s.io/aggregate-to-edit: "true"
rbac.authorization.k8s.io/aggregate-to-admin: "true"
rules:
- apiGroups: ["metrics.k8s.io"]
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Jonsy13 / kubectl.md
Created May 31, 2021 14:14 — forked from so0k/kubectl.md
Playing with kubectl output

Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no
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Jonsy13 / expecting.md
Created May 12, 2021 18:07 — forked from ksafranski/expecting.md
Basic principles of using tcl-expect scripts

Intro

TCL-Expect scripts are an amazingly easy way to script out laborious tasks in the shell when you need to be interactive with the console. Think of them as a "macro" or way to programmaticly step through a process you would run by hand. They are similar to shell scripts but utilize the .tcl extension and a different #! call.

Setup Your Script

The first step, similar to writing a bash script, is to tell the script what it's executing under. For expect we use the following:

#!/usr/bin/expect