Non-hex letters must be upper case (pnp0c14) 所有自必须是大写字母 把 pnpc改成大写字母 2.Invalid combination of Length and Min/Max fixed flags 错误提示无效的长度 length的计算方法为 The Max Val...
互联网技术
Upgrade macOS Catalina on my Thinkpad E450
In the last few years, I learned a lot about how to install macOS on pc. So this week I try to upgrade macOS Catalina on Thinkpad E450. Because this computer has good compatibility with the macO...
Listen network traffic using shell script
vim net.sh #!/bin/bash ethn=$1 while true do RX_pre=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $2}') TX_pre=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{prin...
install the latest syncthing on N1 box
// add the soft source sudo apt install curl apt-transport-https curl -s https://syncthing.net/release-key.txt | sudo apt-key add - sudo echo "deb https://apt.syncthing.net/ syncthing release" > /...
Backup some scripts of refresh rom for N1Box
After setting up using the armbian-config command. Then install the Chinese support. sudo apt-get install ttf-wqy-zenhei sudo fc-cache -v sudo vim /etc/pro...
Install gogs with my N1 Box
Last week, I bought a Phicomm N1 Box. I installed the Armbian OS to it. Let's install gogs for it. First we use this guide to install go-lang. Because of the N1 box's cpu is armv8l and the a...
Setting up 802.1x auth using command line in Ubuntu
My company's network has 802.1x auth. So I need to auth my network.Today we using the nmcli tool to set up network. which nmcli nmcli con edit eth0 nmcli> set ipv4.method auto nmcli> set 802-1...
A demo of the UDP transmission used python
server.py # -*- coding: utf-8 -*- import ctypes import socket import json # ipv4 SOCK_DGRAM指定了这个Socket的类型是UDP s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s.setsockopt(so...
Install the RTL8821CU wifi driver on Linux Deepin
My Linux kernel is 4.1.5 , OS version is Linux Deepin . Below list is the step of install the wifi deriver: git clone https://github.com/whitebatman2/rtl8821CU cd rtl8821CU sudo apt-get inst...
Some useful information of learning the docker and oracle database
// login the docker sudo docker login // search the oracle-11g databaes docker search docker-oracle-xe-11g // download the oracle-xe-11g docker file sudo docker pull marcelmaatkamp/docker-oracle-x...
Some useful command about zero-tier
# 启动 zerotier-one -d # 获取地址和服务状态 zerotier-cli status # 加入、离开、列出网络 zerotier-cli join <Network ID> zerotier-cli leave <Network ID> zerotier-cli listnetworks
The last upgrade MacOS for my Lenovo G460
This Lenovo G460 is my first pc during my study. Since 2013，I install the MacOS for it every year. Fortunately, it has good compatibility. I successfully upgraded from 10.7.5 to 10.14. Until toda...
Make the latest MacOS usb boot installer on older mac hardware
First you should get the patcher software. http://dosdude1.com/software.html 1. Insert your desired USB drive, open Disk Utility, and format it as OS X Extended (Journaled). 2. Open the ...