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  1. kennyz revised this gist Jun 7, 2013. 1 changed file with 3 additions and 2 deletions.
    5 changes: 3 additions & 2 deletions kongwu_pi_tips.md
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    @@ -189,8 +189,9 @@ pi@raspberrypi ~/downloads $ dd count=50 bs=1M if=/dev/zero of=~/test.img
    bingo!!

    ## 解决初始安装时，键盘输入奇怪符号的问题
    比如输入`|`，责显示`~`
    比如输入`|`，则显示`~`

    主要原因是键盘默认使用GB（英国）键盘。

    打开 /etc/default/keyboard
    修改 GB 为 US即可
    修改 gb 为 us即可
  2. kennyz revised this gist Jun 7, 2013. 1 changed file with 5 additions and 1 deletion.
    6 changes: 5 additions & 1 deletion kongwu_pi_tips.md
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    Original file line number Diff line number Diff line change
    @@ -188,5 +188,9 @@ pi@raspberrypi ~/downloads $ dd count=50 bs=1M if=/dev/zero of=~/test.img

    bingo!!

    ## 解决初始安装时，键盘输入奇怪符号的问题
    比如输入`|`，责显示`~`
    主要原因是键盘默认使用GB（英国）键盘。


    打开 /etc/default/keyboard
    修改 GB 为 US即可
  3. kennyz revised this gist Feb 11, 2013. 1 changed file with 18 additions and 1 deletion.
    19 changes: 18 additions & 1 deletion kongwu_pi_tips.md
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    Original file line number Diff line number Diff line change
    @@ -31,7 +31,14 @@ mkdir /media/usbdisk/mactimebak
    步骤如下：
    ### 1）安装pptpd

    运行
    `sudo modprobe ppp-compress-18`
    看内核是否支持，如果没有出错，可以继续。

    安装pptpd服务：
    `sudo apt-get install pptpd`

    然后开始配置

    `sudo vim /etc/pptpd.conf`

    @@ -42,9 +49,12 @@ remoteip 192.168.1.234-238,192.168.1.245

    `sudo vim /etc/ppp/chap-secrets`

    增加如下行：
    ```
    vpnuser pptpd vpnpwd *
    ```
    这里的vpnuser和vpnpwd改为你自己要设置的用户名密码。


    `sudo vim /etc/ppp/pptpd-options`
    配置改为：
    @@ -57,6 +67,9 @@ mtu 1396
    mru 1396
    ```

    这个地方折腾了我很长时间，配置了各种DNS服务，都会出现有些网站无法访问的情况。最后用Google的DNS，一切就好了。
    希望这个提示可以帮助大家少走些弯路。

    配置改好了，运行
    `sudo /etc/init.d/pptpd restart` 启动服务

    @@ -65,10 +78,14 @@ mru 1396
    /etc/sysctl.conf
    修改 `net.ipv4.ip_forward=1`

    然后运行 `sudo sysctl -p` 使配置生效。

    在路由器上设置 `1723` 端口转发到pi上，如果pi有防火墙就打开这个端口。


    ### 3）好了
    在客户端配置vpn（选择PPTP）就可以联通VPN了
    在客户端配置vpn（选择PPTP）就可以联通VPN了。


    ## 实现微信控制Pi上的音乐播放
    稍微有点复杂，慢慢写...
  4. kennyz revised this gist Feb 11, 2013. 1 changed file with 4 additions and 4 deletions.
    8 changes: 4 additions & 4 deletions kongwu_pi_tips.md
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    @@ -29,7 +29,7 @@ mkdir /media/usbdisk/mactimebak
    当然在pi上搞个VPN服务，还是有很多好处的，你懂的。

    步骤如下：
    ### 安装pptpd
    ### 1）安装pptpd

    `sudo modprobe ppp-compress-18`

    @@ -61,14 +61,14 @@ mru 1396
    `sudo /etc/init.d/pptpd restart` 启动服务


    ### 配置网络
    ### 2）配置网络
    /etc/sysctl.conf
    修改 `net.ipv4.ip_forward=1`

    在路由器上设置 `1723` 端口转发到pi上，如果pi有防火墙就打开这个端口。

    ### 好了

    ### 3）好了
    在客户端配置vpn（选择PPTP）就可以联通VPN了

    ## 实现微信控制Pi上的音乐播放
    稍微有点复杂，慢慢写...
  5. kennyz revised this gist Feb 11, 2013. 1 changed file with 3 additions and 1 deletion.
    4 changes: 3 additions & 1 deletion kongwu_pi_tips.md
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    Original file line number Diff line number Diff line change
    @@ -57,13 +57,15 @@ mtu 1396
    mru 1396
    ```

    配置改好了，运行
    `sudo /etc/init.d/pptpd restart` 启动服务


    ### 配置网络
    /etc/sysctl.conf
    修改 `net.ipv4.ip_forward=1`

    打开防火墙 `1723` 端口
    在路由器上设置 `1723` 端口转发到pi上，如果pi有防火墙就打开这个端口。

    ### 好了

  6. kennyz revised this gist Feb 11, 2013. 1 changed file with 36 additions and 2 deletions.
    38 changes: 36 additions & 2 deletions kongwu_pi_tips.md
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    @@ -1,4 +1,4 @@
    ## 折腾Pi，解决疑难杂症最好的地方还是Raspberry Pi的官网论坛
    ## 折腾Pi，解决疑难杂症最好还是去官网论坛
    ![image](http://a0.twimg.com/profile_images/1590336143/Raspi-PGB001_normal.png) [http://www.raspberrypi.org/phpBB3/]()

    ## 支持Apple TimeMachine，实现Mac备份
    @@ -31,8 +31,42 @@ mkdir /media/usbdisk/mactimebak
    步骤如下：
    ### 安装pptpd

    `sudo modprobe ppp-compress-18`

    `sudo vim /etc/pptpd.conf`

    ```
    localip 192.168.1.10
    remoteip 192.168.1.234-238,192.168.1.245
    ```

    `sudo vim /etc/ppp/chap-secrets`

    ```
    vpnuser pptpd vpnpwd *
    ```

    `sudo vim /etc/ppp/pptpd-options`
    配置改为：
    ```
    ms-dns 8.8.8.8
    ms-dns 8.8.4.4
    noipx
    nodefaultroute
    mtu 1396
    mru 1396
    ```



    ### 配置网络
    ### 配置VPN客户端
    /etc/sysctl.conf
    修改 `net.ipv4.ip_forward=1`

    打开防火墙 `1723` 端口

    ### 好了


    ## 实现微信控制Pi上的音乐播放
    稍微有点复杂，慢慢写...
  7. kennyz revised this gist Feb 11, 2013. 1 changed file with 10 additions and 0 deletions.
    10 changes: 10 additions & 0 deletions kongwu_pi_tips.md
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    @@ -24,6 +24,16 @@ mkdir /media/usbdisk/mactimebak
    ## 如何在家庭宽带上实现动态域名，让pi成为一个真实的网站
    写在另外一个页面里了 [https://gist.github.com/kennyz/0afc809baabd8223fddf]

    ## 给pi配置VPN
    有时候需要远程连接到pi上去用samba编辑本地代码，这该死的samba又死活只支持局域网，逼得我连vpn进来。
    当然在pi上搞个VPN服务，还是有很多好处的，你懂的。

    步骤如下：
    ### 安装pptpd

    ### 配置网络
    ### 配置VPN客户端

    ## 实现微信控制Pi上的音乐播放
    稍微有点复杂，慢慢写...

  8. kennyz revised this gist Feb 11, 2013. 1 changed file with 7 additions and 1 deletion.
    8 changes: 7 additions & 1 deletion kongwu_pi_tips.md
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    @@ -1,3 +1,6 @@
    ## 折腾Pi，解决疑难杂症最好的地方还是Raspberry Pi的官网论坛
    ![image](http://a0.twimg.com/profile_images/1590336143/Raspi-PGB001_normal.png) [http://www.raspberrypi.org/phpBB3/]()

    ## 支持Apple TimeMachine，实现Mac备份
    在磁盘中创建备份目录
    mkdir /media/usbdisk/mactimebak
    @@ -25,10 +28,13 @@ mkdir /media/usbdisk/mactimebak
    稍微有点复杂，慢慢写...

    ## 安装看门狗防止pi死机
    参考文章 [http://ukonline2000.com/?p=116]
    参考文章 [Link](http://ukonline2000.com/?p=116)

    ## 在Pi上增加负载和CPU温度的监控

    将Pi的负载和温度显示在你自己的网站上，愿意自己绘图的可以自己动手，像我一样懒的可以通过COSM的API实时接收数据并且画出精美的监控图片。
    比如这样的：
    ![image](https://api.cosm.com/v2/feeds/95397/datastreams/temp.png?width=400&height=200&colour=%23f15a24&duration=3hours&title=Pi's%20real-time%20CPU%20temprature&show_axis_labels=true&detailed_grid=true&timezone=Beijing&1360558363265a0.9919140634592623)


    send_data.sh 的代码如下：
  9. kennyz revised this gist Feb 11, 2013. No changes.
  10. kennyz revised this gist Feb 11, 2013. 1 changed file with 6 additions and 3 deletions.
    9 changes: 6 additions & 3 deletions kongwu_pi_tips.md
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    @@ -1,4 +1,4 @@
    ### 支持Apple TimeMachine，实现Mac备份
    ## 支持Apple TimeMachine，实现Mac备份
    在磁盘中创建备份目录
    mkdir /media/usbdisk/mactimebak
    推荐使用ext4分区(打开notime)
    @@ -18,12 +18,15 @@ mkdir /media/usbdisk/mactimebak
    /media/usbdisk/mactimebak "Time Machine" allow:pi cnidscheme:dbd options:usedots,upriv,tm
    ```

    ### 如何在家庭宽带上实现动态域名，让pi成为一个真实的网站
    ## 如何在家庭宽带上实现动态域名，让pi成为一个真实的网站
    写在另外一个页面里了 [https://gist.github.com/kennyz/0afc809baabd8223fddf]

    ### 实现微信控制Pi上的音乐播放
    ## 实现微信控制Pi上的音乐播放
    稍微有点复杂，慢慢写...

    ## 安装看门狗防止pi死机
    参考文章 [http://ukonline2000.com/?p=116]

    ## 在Pi上增加负载和CPU温度的监控


  11. kennyz revised this gist Feb 10, 2013. 1 changed file with 3 additions and 2 deletions.
    5 changes: 3 additions & 2 deletions kongwu_pi_tips.md
    View file
    Original file line number Diff line number Diff line change
    @@ -18,10 +18,11 @@ mkdir /media/usbdisk/mactimebak
    /media/usbdisk/mactimebak "Time Machine" allow:pi cnidscheme:dbd options:usedots,upriv,tm
    ```


    ### 如何在家庭宽带上实现动态域名，让pi成为一个真实的网站
    写在另外一个页面里了 [https://gist.github.com/kennyz/0afc809baabd8223fddf]

    ### 实现微信控制Pi上的音乐播放
    ...
    稍微有点复杂，慢慢写...

    ## 在Pi上增加负载和CPU温度的监控

  12. kennyz revised this gist Feb 10, 2013. 1 changed file with 20 additions and 1 deletion.
    21 changes: 20 additions & 1 deletion kongwu_pi_tips.md
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    @@ -1,5 +1,24 @@
    ### 支持Apple TimeMachine，实现Mac备份
    ...
    在磁盘中创建备份目录
    mkdir /media/usbdisk/mactimebak
    推荐使用ext4分区(打开notime)

    安装nettalk

    修改配置文件：
    `sudo vim /etc/netatalk/AppleVolumes.default`

    配置如下

    ```
    # The line below sets some DEFAULT, starting with Netatalk 2.1.
    :DEFAULT: options:upriv,usedots
    # By default all users have access to their home directories.
    ~/ "Home Directory"
    /media/usbdisk/mactimebak "Time Machine" allow:pi cnidscheme:dbd options:usedots,upriv,tm
    ```



    ### 实现微信控制Pi上的音乐播放
    ...
  13. kennyz revised this gist Feb 10, 2013. No changes.
  14. kennyz revised this gist Feb 10, 2013. 1 changed file with 6 additions and 0 deletions.
    6 changes: 6 additions & 0 deletions kongwu_pi_tips.md
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    @@ -1,3 +1,8 @@
    ### 支持Apple TimeMachine，实现Mac备份
    ...

    ### 实现微信控制Pi上的音乐播放
    ...

    ## 在Pi上增加负载和CPU温度的监控

    @@ -92,3 +97,4 @@ pi@raspberrypi ~/downloads $ dd count=50 bs=1M if=/dev/zero of=~/test.img
    bingo!!



  15. kennyz created this gist Feb 10, 2013.
    94 changes: 94 additions & 0 deletions kongwu_pi_tips.md
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    @@ -0,0 +1,94 @@

    ## 在Pi上增加负载和CPU温度的监控



    send_data.sh 的代码如下：

    ```
    cd /home/pi/bin/cosm/
    sed 's/\([0-9]*\.[0-9][0-9]\) \([0-9]*\.[0-9][0-9]\) \([0-9]*\.[0-9][0-9]\)\(.*\)/{"datastreams":[ {"id":"5min","current_value":"\1"},{"id":"10min","current_value":"\2"},{"id":"15min","current_value":"\3"} ]}/' /proc/loadavg > cosm-load.json
    curl --request PUT --data-binary @cosm-load.json --header "X-ApiKey: -APIKEY" http://api.cosm.com/v2/feeds/95397?timezone=+8
    VAL=`cat /sys/class/thermal/thermal_zone0/temp`
    STR=`awk 'BEGIN{printf "{\"datastreams\":[ {\"id\":\"temp\",\"current_value\":\"%.1f\"} ] } ",'$VAL'/1000}'`
    echo $STR > cosm_temp.json
    curl --request PUT --data-binary @cosm_temp.json --header "X-ApiKey: -APIKEY" http://api.cosm.com/v2/feeds/95397?timezone=+8
    ```




    ## 更换了一个更加快速的源：

    pi的源列表: [http://www.raspbian.org/RaspbianMirrors]()

    测试了之后发现这个源在国内更新最快

    `http://mirror.devunt.kr/raspbian/raspbian/`

    更换源:

    sudo vi /etc/apt/sources.list

    更换为以下代码：
    `deb http://mirror.devunt.kr/raspbian/raspbian/ wheezy main contrib non-free rpi`


    ## 解决磁盘速度问题
    **外接磁盘绝对不能使用NTFS格式分区！速度非常慢**

    安装测试磁盘速度的软件：
    `sudo apt-get install hdparm`

    测试本地card的读写速度：

    `hdparm -Tt /dev/mmcblk0`

    `pi@raspberrypi ~/downloads $ sudo hdparm -Tt /dev/mmcblk0`

    ```
    /dev/mmcblk0:
    Timing cached reads: 210 MB in 2.02 seconds = 104.21 MB/sec
    Timing buffered disk reads: 54 MB in 3.09 seconds = 17.45 MB/sec
    pi@raspberrypi ~/downloads $ dd count=50 bs=1M if=/dev/zero of=~/test.img
    50+0 records in
    50+0 records out
    52428800 bytes (52 MB) copied, 1.55218 s, 33.8 MB/s
    ```

    测试外接硬盘的读写速度：

    `hdparm -Tt /dev/sda1`

    `pi@raspberrypi ~/downloads $ sudo hdparm -Tt /dev/sda1`

    ```
    /dev/sda1:
    Timing cached reads: 316 MB in 2.01 seconds = 157.46 MB/sec
    Timing buffered disk reads: 62 MB in 3.03 seconds = 20.48 MB/sec
    ```

    `pi@raspberrypi ~/downloads $ dd count=50 bs=1M if=/dev/zero of=/media/usbdisk/test.img`

    ```
    50+0 records in
    50+0 records out
    52428800 bytes (52 MB) copied, 13.5962 s, 3.9 MB/s
    ```

    将external disk 格式化成ext4

    `sudo mount -t ext4 /dev/sda1 /media/usbdisk`

    `pi@raspberrypi / $ sudo dd count=50 bs=1M if=/dev/zero of=/media/usbdisk/test.img`

    ```
    50+0 records in
    50+0 records out
    52428800 bytes (52 MB) copied, 1.15549 s, 45.4 MB/s
    ```

    bingo!!