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@fntlnz
fntlnz / self-signed-certificate-with-custom-ca.md
Last active April 13, 2026 05:08
Self Signed Certificate with Custom Root CA

Create Root CA (Done once)

Last update: Nov 2025.

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl ecparam -genkey -name secp384r1 | openssl ec -aes256 -out rootCA.key
for bucket in $(aws s3api list-buckets --query 'Buckets[*].{Name:Name}' --output text)
do
echo "$bucket:"
region=$(aws s3api get-bucket-location --bucket $bucket --query 'LocationConstraint' --output text | awk '{sub(/None/,"eu-west-1")}; 1')
parts=$(aws s3api list-multipart-uploads --bucket $bucket --region $region --query 'Uploads[*].{Key:Key,UploadId:UploadId}' --output text)
if [ "$parts" != "None" ]; then
IFS=$'\n'
@devynspencer
devynspencer / ansible-github.yml
Last active May 10, 2025 16:47
Example playbook for cloning a private git repository with Ansible.
---
hosts: all
tasks:
- name: add github ssh key
copy: >
src=files/id_rsa.github
dest=/root/.ssh/id_rsa.github
owner=root
group=root
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active April 15, 2026 17:04
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'