xud6的笔记本

xud6的笔记本

Linux 持续ping网关防止wifi掉线

nano /etc/systemd/system/network-ping-gateway.service 添加以下内容 # Save in /etc/systemd/system/network-ping-gateway.service [Unit] Description=Ping default network gateway service After=network-online.target [Service] ExecStart=/bin/bash -c 'read _ _ gateway _ < <(ip route list match 0/0); ping "$gateway"' Type=simple [Install] WantedBy=multi-user.target 执行 systemctl enable network-ping-gateway

ESXI 禁用vib

禁用nmlx4_rdma esxcli system module set --enabled=false --module=nmlx4_rdma

debian11设置无密码sudo

在/etc/sudoers.d/下新建文件 nano /etc/sudoers.d/passwordless 内容如下，替换username和/usr/bin/su为需要的用户名和程序 username ALL=(ALL) NOPASSWD: /usr/bin/su

Debian使用MAC地址作为DHCP客户端IP

编辑 /etc/dhcp/dhclient.conf nano /etc/dhcp/dhclient.conf 增加 send dhcp-client-identifier = hardware;

阻止Windows失败启动后进入恢复模式

bcdedit /set bootstatuspolicy ignoreallfailures bcdedit /set {default} bootstatuspolicy ignoreallfailures

Intel有线网卡Windows系统加密备份时网络中断

Intel有线网卡（I225、I219-V等）在Windows系统备份（synology active backup、Veeam agent等）且备份加密开启时，网络中断。解决方法：增大传输缓冲区和接收缓冲区（transmit and receive buffers）至2048（最大值）

修改Windows网卡优先级

打开Powershell 获取网卡信息 Get-NetIPInterface 修改InterfaceMetric，更换21为对应网卡index，10为需要优先级（数字越低优先级越高） Set-NetIPInterface -InterfaceIndex 21 -InterfaceMetric 10

Powershell 设置链接DNS suffix

Get-DnsClient 获取 InterfaceIndex Set-DnsClient -InterfaceIndex {InterfaceIndex} -ConnectionSpecificSuffix "{domain name}"

Ubuntu 20.04 lightdm 关闭休眠

禁用systemd休眠状态 sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target 修改lightdm的Time before suspend sudo -u lightdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout 0 sudo -u lightdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-battery-timeout 0 sudo -u lightdm dbus-launch gsettings set org.gnome.settings-daemon.

TIM 无法打开提示0xc0000142

注册表前往HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Compatibility Assistant\Store 删除 C:\Program Files (x86)\Tencent\TIM\Bin\QQScLauncher.exe C:\Program Files (x86)\Tencent\TIM\Bin\TIM.exe BAT脚本 reg delete "HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Compatibility Assistant\Store" /v "C:\Program Files

Windows 11 wt.exe 丢失

get-appxpackage Microsoft.WindowsTerminal -allusers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

修复Windows 11安全中心

Powershell 执行 Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage

Windows 证书服务清理过期证书

certutil -deleterow YYYY/M/D Cert

Truenas zvol 性能诊断

测试读取性能 dd if=/dev/zvol/name_goes_here of=/dev/null bs=64K count=1M status=progress

Windows 预安装打印机驱动

将打印机驱动复制到可以访问的共享路径使用以下powershell脚本安装驱动 pnputil.exe /a "\\\koaxpj__.inf.inf" 之后确认安装后打印机驱动的路径，在C:\Windows\System32\DriverStore\FileRepository下打开inf文件记录下实际打印机型号的名称，如 [KONICA MINOLTA.NTamd64] "KONICA MINOLTA C368SeriesPCL" "KONICA MINOLTA C3851SeriesPCL" 使用以下powershell脚本添加具体驱动 Add-PrinterDriver -Name "KONICA MINOLTA C368SeriesPCL" -InfPath "C:\Windows\System32\DriverStore\FileRepository\koaxpj__.inf_amd64_c4e736b89265dcc3\koaxpj__.inf" Add-PrinterDriver -Name "KONICA MINO

MDT 等待网络就绪

添加以下 Run Command Line 步骤 PING 1.1.1.1 -n 1 -w 900000 其中1.1.1.1可换为MDT服务器地址

服务器本地管理员无法访问管理共享

检查 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System 存在DWORD键LocalAccountTokenFilterPolicy，值应为1

MACOS 修复应用修改后代码签名问题，即xxx.app已损坏

创建代码签名证书打开钥匙串访问打开菜单栏-钥匙串访问-证书助理创建证书证书类型选代码签名，名称取个终端中容易输入的，创建。找到刚创建的证书，打开后在信任中代码签名修改为始终信任。重签名有问题的app sudo codesign --deep --force --verify --verbose --sign "XXXXXcodesign" /Applications/YYYYY.app XXXXXcodesign为刚才创建的证书名 YYYYY.app为需要签名的app

H3C下载账号

用户名：yx800 密码：01230123

apt限制同时下载数量

Queue-Mode 设置选项默认值为 host 对每个host发起一个连接。当设为access时，对每个URI类型发起一个连接。由于大部分为http，因此也大致满足要求永久设置 echo 'Acquire::Queue-Mode "access";' >/etc/apt/apt.conf.d/75download 临时设置 apt -o Acquire::Queue-mode=access upgrade

STM32 HAL UART循环发送缓存

#define UART_SEND_BUFF_SIZE 100 uint8_t UARTSendBuff[UART_SEND_BUFF_SIZE + 2] = {0}; uint16_t UARTSendBuffDataPos = 0; uint16_t UARTSendBuffUsedPos = 0; uint8_t UARTSendBuff_FlagSendBusy = 0; void UARTSendBuff_putData(uint8_t * data,uint16_t len){ while(len){ UARTSendBuffDataPos++; if(UARTSendBuffDataPos > UART_SEND_BUFF_SIZE){ UARTSendBuffDataPos = 1; } UARTSendBuff[UARTSendBuffDataPos]

清空 Active Directory 回收站

Get-ADObject -Filter {isDeleted -eq $true -and Name -like "*DEL:*"} -IncludeDeletedObjects | Remove-ADObject -Confirm:$false

Powershell 卸载程序

function Uninstall-Application { $appName = $($args[0]) Write "application to uninstall: $appName" $uninstall32 = gci "HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall" | foreach { gp $_.PSPath } | ? { $_ -Match $appName } $uninstall64 = gci "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall" | foreach { gp $_.PSPath } | ? { $_ -match $appName } if($uninstall32){ if($uninstall32.QuietUninstallString){ Write ("uninstall32 Quiet

PowerShell 自动提权

添加至脚本头 param([switch]$Elevated) function Test-Admin { $currentUser = New-Object Security.Principal.WindowsPrincipal $([Security.Principal.WindowsIdentity]::GetCurrent()) $currentUser.IsInRole([Security.Principal.WindowsBuiltinRole]::Administrator) } if ((Test-Admin) -eq $false) { if ($elevated) { # tried to elevate, did not work, aborting } else { Start-Process powershell.exe -Verb RunAs -ArgumentList ('-noprofile -noexit -file "{0}" -elevated' -f ($myinvocati

Centos 开启 dns缓存

安装nscd yum install nscd 在有IPA Client(或SSSD)的情况下修改/etc/nscd.conf中enable-cache为如下 enable-cache hosts yes enable-cache passwd no enable-cache group no enable-cache netgroup no enable-cache services no 启动 systemctl enable nscd systemctl restart nscd 验证已经开启 time getent hosts www.bing.com 结果中 real 0m0.002s user 0m0.001s sys 0m0.000s