Jas0n99

pmeulen / public_encrypt_decrypt.php

Last active November 17, 2025 21:17

Functions for encrypting and decrypting data with RSA public key crypto using the PHP openssl_* functions.

	<?php


	/**
	* Encrypt $plaintext using $rsa_public_key
	*
	* To decrypt the data the RSA private that corresponds to the $rsa_public_key is required.
	*
	* Because public key crypto is not suitable for arbitrary length data, encryption is done in two steps
	* 1. Generate a random symmetric key and encrypt the plaintext with that key

jult / jbt-rules.cf

Last active November 25, 2025 16:18

SpamAssassin rules

	# Put this file under /etc/spamassassin/ and run an sa-update or reload amavis etc.
	#
	#--------------------------------------------------
	# The only RBL I trust, UCEPROTECT1 (single IP, not IP-ranges or entire ISPs) http://uceprotect.net
	#--------------------------------------------------
	header RCVD_IN_UCEPROTECT1 eval:check_rbl_txt('uceprotect1', 'dnsbl-1.uceprotect.net')
	describe RCVD_IN_UCEPROTECT1 Listed in dnsbl-1.uceprotect.net
	tflags RCVD_IN_UCEPROTECT1 net
	score RCVD_IN_UCEPROTECT1 1.8

jult / certbot_cloudflare_dns.sh

Last active January 20, 2026 23:38

script to install latest certbot with cloudflare dns-01 challenge plugin (for debian 9/stretch)

	#!/bin/sh

	# Check if user has root privileges
	if [[ $EUID -ne 0 ]]; then
	echo "You must run the script as root or using sudo"
	exit 1
	fi

	## Reconfigure Dash
	echo "dash dash/sh boolean false" \| debconf-set-selections