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Docker搭建 Emby 开心版
AOS开发 00 - 介绍 & 环境搭建
AOS开发 01 - 可用内存分布&boot和loader阶段数据存储位置
偶遇bug,强如怪物,拼尽全力无法战胜...
Creating ISO images with dd and mkisofs
2023-02-27 - 2024-09-18
Linux

IMG file

Make

1dd if=/dev/zero of=fdimage.img count=2880
2# or
3dd if=/dev/zero of=fdimage.img bs=1024 count=1440

Format

1mkfs.msdos fdimage.img

Mount

1mount -o loop *.img /mnt

Bootable

因为制作可启动镜像一定会用到虚拟机，推荐用 Virtualbox，先到网上下个 DOS 启动盘来引导。用 DOS 的 sys 命令传递系统。推荐使用 FreeDOS，属自由软件。也可用 dd 命令 来传递引导引导信息，并复制启动启动时所需文件来做启动盘。以 FreeDOS 为例，传递启动信息用以下命令，其中下载的启动盘为balder10.img 文件

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Create Systemd Service Unit
2023-02-27 - 2024-09-18
Linux

文件所在路径

1vim /usr/lib/systemd/system/SERVICE_NAME.service

服务模板

 1[Unit]
 2Description=Viry Service
 3After=network.target auditd.service
 4
 5[Service]
 6User=root
 7Type=oneshot
 8RemainAfterExit=true
 9ExecStart=/viry/serv/serv.sh
10ExecStop=/bin/true
11
12[Install]
13WantedBy=multi-user.target
14Alias=viry.service

serv.sh

 1#!/bin/bash
 2
 3echo "Sync Time"
 4ntpdate 172.16.1.1
 5hwclock -w
 6
 7TIME=$(TZ=UTC-8 date "+%Y-%m-%d %H:%M:%S")
 8LOG="/viry/serv/serv.log"
 9
10echo "Ready"
11echo "" >> $LOG
12echo $TIME >> $LOG
13
14echo "Start DEMO"
15echo "Start DEMO" >> $LOG
16sh /viry/serv/demo/demo.sh
17
18echo "Finished"
19echo "Finished" >> $LOG

demo.sh

 1#!/bin/bash
 2
 3cd /viry/serv/demo/exec/
 4
 5screen_name="demo"
 6
 7screen -s /usr/bin/bash -dmS $screen_name
 8
 9cmd1=""
10cmd2="./demo"
11
12screen -x -S $screen_name -p 0 -X stuff "$cmd1\n"
13screen -x -S $screen_name -p 0 -X stuff "$cmd2\n"
14
15echo "Demo Started"
16
17exit 0
CSS-Only Carousel
2023-02-25 - 2024-09-18
CSS 

1<div class="wheelPlayer wheelAnimate">
2    <div>1</div>
3    <div>2</div>
4    <div>3</div>
5</div>

 1.wheelPlayer{
 2   padding: 20px 0;
 3   margin: auto;
 4   width: 350px;
 5}
 6.wheelPlayer div{
 7   position: relative;
 8   height: 25px;
 9   line-height: 26px;
10   width: 70px;
11   text-align: center;
12   border: 1px solid gray;
13}
14.wheelAnimate div{
15   animation: whellPlayer 9s infinite;
16   -moz-animation: whellPlayer 9s infinite;
17   -webkit-animation: whellPlayer 9s infinite;
18}
19.wheelPlayer div:nth-of-type(1){
20   animation-delay: -6s;
21   -moz-animation-delay: -6s;
22   -webkit-animation-delay: -6s;
23}
24.wheelPlayer div:nth-of-type(2){
25   animation-delay: -3s;
26   -moz-animation-delay: -3s;
27   -webkit-animation-delay: -3s;
28   margin-top:  -27px;
29}
30.wheelPlayer div:nth-of-type(3){
31   animation-delay: -0s;
32   -moz-animation-delay: 0s;
33   -webkit-animation-delay: 0s;
34   margin-top:  -27px;
35}
Clipboard
2023-02-23 - 2024-09-18
JavaScript

向剪切板写入 图片等任意的数据到剪贴板。 这个方法可以用于实现剪切和复制的功能,是异步的

1document.body.addEventListener(
2  'click',
3  async (e) => {
4    await navigator.clipboard.writeText('Yo')
5  }
6)

Clipboard.read()用于读取剪切板的数据，也是异步的成功返回数据

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Xterm
2023-02-15 - 2024-09-18
Linux 
1vim ~/.Xresource

填写配置

 1xterm.termName: xterm-256color
 2xterm*locale:true
 3xterm.utf8: true
 4xterm*utf8Title: true
 5
 6!fix alt key input 
 7!xterm*eightBitInput: false
 8!xterm*altSendsEscape: true
 9
10!xterm*scrollBar: true
11!xterm*rightScrollBar: true
12xterm*SaveLines: 4096
13
14!xterm*background: black
15!xterm*foreground: green
16
17xterm*printAttributes: 0
18xterm*printerCommand: cat > ~/xtermdump
19
20!xterm*VT100.translations: #override <Btn1UP>: select-end(PRIMARY, CLIPBOARD, CUT_BUFFER0)
21xterm*VT100.translations: #override \
22        Ctrl <KeyPress> V: insert-selection(CLIPBOARD,PRIMARY,CUT_BUFFER0) \n\
23        <BtnUp>: select-end(CLIPBOARD,PRIMARY,CUT_BUFFER0) \n\
24        Ctrl <KeyPress> P: print() \n
25
26xterm*faceName: Ubuntu Bold:antialias=True:pixelsize=12
27xterm*faceNameDoublesize:Noto Sans Mono CJK SC:antialias=True:pixelsize=12
Sudo
2023-02-15 - 2024-09-18
Linux 
1apt install sudo
2cd /etc/sudoers.d
3vim user
4# Akvicor ALL=(ALL)NOPASSWD:ALL
Ufw
2023-02-15 - 2024-09-18
Linux

https://wiki.ubuntu.org.cn/Ufw%E4%BD%BF%E7%94%A8%E6%8C%87%E5%8D%97

安装

默认UFW的规则是放通全部端口

1apt-get install ufw

设置默认规则

首先设置拒绝所有传入并允许所有传出。

请勿运行以下命令后直接应用，否则会直接锁定你的服务器。确保在应用默认规则前放通了SSH和其他关键服务的端口。

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Notepad Compile
2023-02-15 - 2024-09-18
Windows

Environment

Add MinGW environment to Path: C:\MinGW\bin

Open Notepad++

Plug->Plugin Manager->Show Plugin Manager

at Available, double click ‘downloading list’

Search ‘Nppexec’, install and restart

Open Console

Plug->NppExec->Show Console

Compile

Plug->NppExec->Execute

Compile

  • input: g++ $(FULL_CURRENT_PATH) -g -o $(CURRENT_DIRECTORY)\$(NAME_PART).exe
  • click save, input: Compile

Run

  • input: $(CURRENT_DIRECTORY)\$(NAME_PART).exe
  • click save, input: Run

GDB

  • input: gdb $(CURRENT_DIRECTORY)\$(NAME_PART).exe
  • click save, input: GDB

Add to Macros submenu

Plug->NppExec->Advanced Options

at Associated script:

  • Add-> Compile and Run and GBD
  • Menu items -> Place to the Macros submenu
Networking timeout
2023-02-15 - 2024-09-18
Linux

1

1vim /etc/systemd/system/network-online.target.wants/networking.service
2
3TimeoutStartSec=2sec

2

1vim /etc/dhcp/dhclient.conf
2
3timeout 15

1

change auto eth0 to allow-hotplug eth0

Analyzeblame
2023-02-15 - 2024-09-18
Linux

开机时间

1systemd-analyze
Netstat
2023-02-15 - 2024-09-18
Linux 
1# 查看系统tcp连接中各个状态的连接数。
2netstat -an|awk '/^tcp/ {++s[$NF]} END {for(a in s ) print a,s[a]}'
3
4# 查看和本机23端口建立连接并状态在established的所有ip
5netstat -an|grep 80|grep ESTA|awk '{print $5}'|awk 'BEGIN {FS=":"} {print $1 "\n"}'|sort|uniq -c