ethaniel

Why

I've noticed RX packet drops on my PCI card (InDroppedDma was too high). I suspected that it was because of a firmware problem, so I decided to try to find a way to update it.

There was no official linux firmware updater, however I found an unofficial one published some time ago, which worked well when combined with the latest firmware.

Use at your own risk, however I didn't experience any problems.

Explanation:

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

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

<?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

<?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

// 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

// Copy-paste this into your browser's console.
// WARNING: This will delete ALL DNS RECORDS that are visible on the current page one by one.
// It might take 5-10 seconds to delete one DNS record.
// Based on https://community.cloudflare.com/t/useful-script-to-bulk-delete-all-incorrectly-imported-dns-records/131144
// Valid for 11 January 2024. Might need to be redone later.

(() => {
    const deleteTopRecord = () => {

        if (document.querySelector('[data-testid="dns-delete-modal-confirm-button"]')) {

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

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

; 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