Fix the problem of 502 error
There is an incident on one of my websites this morning. It returns a 502 Bad Gateway error when I try to reach the website. I did a little bit of research on the Internet. I found it is because...
Author: David Yin
Test run of the Crypto Mining
Today, I tried running the Crypto Mining on my two PCs. The results are fun. I asked everything on the Microsoft Copilot desktop App. It explained which crypto is good for CPU mining, how to get the software, how to...
It is time to block AI bots
I think it is best to block AI bots. I use Cloudflare as the CDN for the whole website. It is quite easy to make it happen. Cloudflare AI Bots setting You can choose to block AI bots by activating...
There is another wave of DoS attacking
Here we go. I found the websites are not available at noon. I checked the server status. All good. But the websites return a 404 error. OK, I just restarted the PHP-FPM service. Because the static page is OK. So...
How to mount a USB disk in OPNsense
One night, the router is stopping working. It is powered by OPNsense. So, how can I do? First, boot it to single-user mode. Reboot, of course, the device is rebooting repeatedly. Enter boot Menu, select the second option. Access shell....
Update the RAM of my PC
It is a small update. My wife’s old desktop was retired. It has two RAM stickers, 2X8GB. My PC has 2X16GB + 8GB + 4GB. It is kind of unbalanced. Now I have the chance to make it right. These...
Two small home appliances
It is kind of a curse for my trip. Every time I take a trip. There is something broken in my house when I am back. I paid a visit to San Francisco for sixteen days early this month. When...
A new 4TB WD Blue HDD
I bought a WD Blue 4TB HDD at Amazon.ca. $99.97 plus tax. It is an upgrade of my desktop PC. This 4TB HDD replaced the old WD Blue 1TB and a 250GB SATA SSD. The WD40EZAX has the following...
Got an SFP+ Transceiver
I bought an SFT+ to RJ45 device on Amazon.ca. The price is $43.99 with a 10% discount. So the total I paid is $44.34, including TAX. 10GBASE-T SFP+ Transceiver, 1.25/2.5/5/10G SFP+ to RJ45, 10Gb Copper SFP+ to Ethernet Module for...
Upgrade TP-Link TL-SG3210XHP-M2 firmware
The firmware installed on my TL-SG3210XHP-M2 is v1.0.13. Hardware version is 1.0. The last time I upgraded the firmware was about two years ago. Go to the official webpage for downloading. https://support.omadanetworks.com/us/product/tl-sg3210xhp-m2/v1/?resourceType=download The latest firmware is v1.0.16 today. The release...
VirtIO Drivers of Windows Guest on Proxmox VE
In the Proxmox VE system, when I add a Windows 10 guest or virtual machine, I choose Intel E1000E as the network device. It is much safer to use it. The connection is up to 1 G. Now, I have...
10G NIC Intel 82599EN Controller, SFP+
Recently, I received a new network card. X520-10G-1S-X8. It is a 10G NIC Intel 82599EN Controller, SFP+, PCIe X8 network card. The brand is 10Gtek. I bought it on Tmall. The price is RMB152, = CA$30. I installed it on...
Husky 65FT. Green Beam Self-leveling Cross Line Laser Level
I bought a laser level on February 25, 2025. It is a Husky 65FT. Green Beam Self-leveling Cross Line Laser Level. I checked the price today. I found the price has increased from $59.98 to $79.98. Ok. The actual purpose...
KIDDE Smoke Alarm replacement
The smoke alarm was beeping every 30 seconds in my hallway on the second floor of my home on May 10th. It means it was broken. I took it down and checked the body. I have a date on it,...
Install a new Bathroom Fan
I bought a bathroom fan at Costco Warehouse at a discounted price. Dewstop Bathroom Fan and Switch After installation, it is so quiet that I can barely hear it. The steps are simple. The work is not easy for me....