2024年8月

Nginx 只允许Cloudflare CDN IP访问

server {
    listen 80;
    server_name your_domain.com;

    # 允许 Cloudflare 的 IP 地址访问
    # 定义允许的 IPv4 地址范围
    allow 173.245.48.0/20;
    allow 103.21.244.0/22;
    allow 103.22.200.0/22;
    allow 103.31.4.0/22;
    allow 141.101.64.0/18;
    allow 108.162.192.0/18;
    allow 190.93.240.0/20;
    allow 188.114.96.0/20;
    allow 197.234.240.0/22;
    allow 198.41.128.0/17;
    allow 162.158.0.0/15;
    allow 104.16.0.0/13;
    allow 104.24.0.0/14;
    allow 172.64.0.0/13;
    allow 131.0.72.0/22;

    # 定义允许的 IPv6 地址范围
    allow 2400:cb00::/32;
    allow 2606:4700::/32;
    allow 2803:f800::/32;
    allow 2405:b500::/32;
    allow 2405:8100::/32;
    allow 2a06:98c0::/29;
    allow 2c0f:f248::/32;

    # 禁止其他 IP 地址访问
    deny all;

    # 此处添加其他 Nginx 配置，如 location 等
}

现有一个简单的需求，需要用户弹窗选择一个铃音，要求在正式的确认之前就能播放对应的音乐作预听，微信小程序picker（mode = selector）可以实现选择确认功能，但只有点击确认后的bindchange事件，没有选择变化事件。根据微信文档，在mode = multiSelector时，有多了一个bindcolumnchange事件，灵光一闪，只有一列的multiSelector不就是selector？那不就可以把multiSelector当selector用？

wxml:

          <view class="option">铃声: 
          <picker mode="multiSelector" range="{{[ringtones]}}" data-alarmid="{{item.id}}" bindcolumnchange="bindRingtoneSelect" bindchange="bindRingtoneChange">
            <view class="picker">{{ringtones[item.ringtoneIndex]}} <text class="picker-selector"> ❯</text> </view> 
          </picker>
          </view>

特别注意其中：ringtones一维数组，调整为：[ringtones]引用。

js:

  bindRingtoneSelect: function(e) {
    proto.sendPlayMusic(e.detail.value);
  },

  bindRingtoneChange:function(e) {
    proto.sendSaveMusic(e.detail.value);
  },

实验效果完美解决~~

Debian默认root帐号shell无色彩解决

默认root帐号的shell无色彩

修改.bashrc文件为：

# ~/.bashrc: executed by bash(1) for non-login shells.

# Note: PS1 and umask are already set in /etc/profile. You should not
# need this unless you want different defaults for root.
 PS1='${debian_chroot:+($debian_chroot)}\h:\w\$ '
# umask 022

# You may uncomment the following lines if you want `ls' to be colorized:
 export LS_OPTIONS='--color=auto'
 eval "$(dircolors)"
 alias ls='ls $LS_OPTIONS'
 alias ll='ls $LS_OPTIONS -l'
 alias l='ls $LS_OPTIONS -lA'

# Some more alias to avoid making mistakes:
# alias rm='rm -i'
# alias cp='cp -i'
# alias mv='mv -i'

# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
force_color_prompt=yes

if [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
    # We have color support; assume it's compliant with Ecma-48
    # (ISO/IEC-6429). (Lack of such support is extremely rare, and such
    # a case would tend to support setf rather than setaf.)
    color_prompt=yes
    else
    color_prompt=
    fi
fi

if [ ! -z "$PS1" ]; then
    if [ "$color_prompt" = yes ]; then
        PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
    else
        PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
    fi
fi