ethaniel

<?php

// formulas courtesy of https://planetcalc.com/2167/

$pressure = 1000; // Pressure in hPa
$temperature = 25; // Temperature in Celsius
$humidity = 75; // Relative Humidity in %

$e = 2.71828;
$tp = ($pressure * 133.322)/100;

ethaniel

Recently, I've been upgrading manually compiled Asterisk on my Centos to a version coming from Tucny's Repo. When starting up the Asterisk, I've noticed the following error:

asterisk: symbol lookup error: /lib/libasteriskssl.so.1: undefined symbol: ast_register_file_version

The problem came from leftover files from the manual build. Here is how I fixed this:

rm -rfv /lib/libasterisk*
rm -rfv /usr/lib/asterisk

ethaniel

; Save this file somewhere (I keep it on my desktop) as min_teamviewer.ahk and run it once
; It will create a shortcut in the Startup folder, so it will be loaded automatically on system reboot


#SingleInstance Force

;LWin::
;RWin::

DetectHiddenText, on

ethaniel

1. Open Grafana dashboard settings.
2. Go to "Annotations"
3. Create an annotation with a data source "InfluxDB" and add the following query:

import "array"
import "timezone"
import "date"

option location = timezone.location(name: "Asia/Bangkok")

ethaniel

<?php

// If you are using PHP Imagine, then you can catch the "icc_transform error. Message: libvips error: icc_transform: no output profile" error
// Then you need to remove the icc-profile-data and repeat the call

try {
	$img = $img->thumbnail($box, Imagine\Image\ImageInterface::THUMBNAIL_OUTBOUND);
} catch (\Exception $e) {
	if (strstr($e->getMessage(), "icc")) {
		$img->getVips()->remove('icc-profile-data');

ethaniel

<?php

require __DIR__ . '/vendor/autoload.php';

use Amp\Loop;
use Amp\Socket\Socket;
use function Amp\asyncCall;

$port1 = 1021; // Primary FTP port (you list it in Hikvision), it receives FTP commands
$port2 = 1022; // Secondary FTP port (for receiving binary data - images)

ethaniel

<?php

// Composer dependencies:
// composer require amphp/socket amphp/byte-stream

// IMPORTANT: Go to System > Security -> Authentication tab, set "WEB Authentication" to "digest/basic" first!!!
// Otherwise you will get authentication errors

require __DIR__ . '/vendor/autoload.php';

ethaniel

If you don't want this, then enable ONVIF on every camera in the settings (add a new ONVIF user with the privilege "Media operator"), and then change the protocol to ONVIF on the NVR side.

ethaniel

Intro

I live in Thailand. Sometimes my internet connection is slow, because my ISP has poor international connectivity with some destinations (Europe, for instance). Sometimes routes that the ISP chooses have a lot of packet losses, or just slow. I needed a way to route SOME of the devices on my LAN another way. I decided to use NordVPN because they have a lot of servers worldwide and my ISP provides a reliable route to SOME of them (I use docker run -it trishmapow/nordvpn-tools FR --load 30 --fping | awk '{ print $NF,$0 }' | sort -k1,1 -n | cut -f2- -d' ' | head -n 10 to find the best servers with the lowest ping for instance). However, I didn't want to deal with installing a VPN client on every device, so I decided to make one inside my Raspberry (but without having the Raspberry use the VPN connection itself, because I have other services running on it).

You will need

1. Raspberry Pi wired by LAN cable
2. Through raspi-config go to Advanced options - Network Interface Names - choose No to

ethaniel

I needed to batch update the monitor and stop timeouts in all of my pacemaker resources. I didn't want to rely on the default values, so I wrote this oneliner:

pcs resource | awk '{print $2}' | while read RESOURCE; do pcs resource update $RESOURCE op start timeout=20s op stop timeout=200s op monitor interval=10s timeout=200s; done