Zak's Notes

dig (Domain Information Groper) is a command-line tool used for querying DNS (Domain Name System) servers for information about host addresses, mail exchanges, nameservers, and other related information. It provides a way to manually check the DNS records for a particular domain and see what information the DNS servers are providing. Here’s how you can use dig and an example usage: Install dig: The dig tool is typically included in most Unix-based systems, such as Linux and macOS.

Local Dev Kubernetes Cluster with Kind When spinning up a kubernetes cluster on gcp or aws it may take time to provision. A quick way to spin up a cluster locally is by using this tool called Kind. You may want to set this up for testing purposes or for experimenting with a new tool. Setting up a full-blown Kubernetes cluster for just some testing can feel like overkill, right?

Here’s an example Terraform configuration for creating two VPCs and automatically accepting VPC peering between them: provider "aws" { region = "us-west-2" } resource "aws_vpc" "vpc_a" { cidr_block = "10.0.0.0/16" tags = { Name = "VPC A" } } resource "aws_vpc" "vpc_b" { cidr_block = "10.1.0.0/16" tags = { Name = "VPC B" } } resource "aws_vpc_peering_connection" "peer_a_b" { vpc_id = aws_vpc.vpc_a.id peer_vpc_id = aws_vpc.vpc_b.id auto_accept = true tags = { Name = "Peer A to B" } } resource "aws_vpc_peering_connection_accepter" "peer_b_a" { vpc_peering_connection_id = aws_vpc_peering_connection.

When profiling programs in python you will need to use a module called cProfile which will output a file which you can later use with Snakeviz. Snakeviz is a tool to see how well your code is performing. Another option to display the output is by using gprof2dot to convert the cprofile output into a graph. python -m cProfile -o ~/prof.out app.py > cprof.txt snakeviz ~/prof.out Make A Graph Of Your Program: gprof2dot -f pstats ~/prof.

Clean White Theme for Hugo CleanWhite is a clean, elegant, but fully functional blog theme for Hugo. Here is a live demo site using this theme. It is based on huxblog Jekyll Theme and Clean Blog Jekyll Theme. These two upstream projects have done awesome jobs to create a blog theme, what I’m doing here is porting it to Hugo, of which I like the simplicity and the much faster compiling speed.