certbot certonly [--dry-run] --manual --preferred-challenges dns-01 \
--domain example.com --domain www.example.com [...]
For each host passed via --domain, Let's Encrypt will prompt the user to create an _acme-challenge TXT record (_acme-challenge.example.com, _acme-challenge.www.example.com, etc.) with a specific value.
| #!/bin/bash | |
| curl -s https://api.github.com/repos/opencv/opencv/releases/latest \ | |
| | grep "browser_download_url.*zip" \ | |
| | cut -d : -f 2,3 \ | |
| | tr -d \" \ | |
| | wget -qi - |
| import cv2 | |
| import sys | |
| class Camera(object): | |
| def __init__(self, index=0): | |
| self.cap = cv2.VideoCapture(index) | |
| self.openni = index in (cv2.CAP_OPENNI, cv2.CAP_OPENNI2) | |
| self.fps = 0 |