View TLS certs for HTTPS sites from the command line
echo | openssl s_client -showcerts -servername {domain} -connect {domain}:443 2>/dev/null | openssl x509 -inform pem -noout -text echo | openssl…
Recent Posts
Setup fail2ban to block bots and script kiddies accessing a Node.js app behind an nginx reverse proxy
Setup fail2ban to stop bot HTTP and HTTPS connections on nodejs apps running through nginx proxy_pass Install fail2ban: sudo yum…
Shrink PDF size using Ghostscript
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf Took a 7MB PDF to 700K!
Git show visual map of all branches
git log --graph --decorate --oneline
Create an Encrypted ZIP archive on macOS command line (cli)
zip -er FILENAME.zip FILESorFOLDERStoCOMPRESS ex: zip -er ThisFolder.zip This\ Folder/ You will be prompted for a password and will have…
Search JSONB embedded array using SequelizeJs
query.$or.push(sequelize.literal(`to_json(array(select jsonb_array_elements("${hook.service.options.name}"."metadata"->'referenceIds') ->> 'id'))::jsonb ?| array['${query.$search}']`));
`nginx` setup to return files with different file extensions
# Allow .jpeg to be requested with .jpg location ~ (.+).jpg(.*) { try_files $uri $1.jpeg$2 =404; } This will try…
Split string on delimiter in Bash
#!/bin/bash # # Script to split a string based on the delimiter declare my_string declare my_array my_string="Ubuntu;Linux Mint;Debian;Arch;Fedora" IFS=';' read…
Error on SCP: `protocol error: mtime.sec not present`
Troubleshoot with scp -vvvv Could be SCP protocol isn’t supported, and you need to use SFTP However, in my case,…
Remove a macOS user's from ability to decrypt FileVault disk
WARNING: don’t do this unless it’s for a secondary user on your Mac. This will prevent any user from decrypting…