Configuration Apple-pi - Raspbian

Configuration Page

Introduction

This is the configuration page for the Raspbian partition on Apple-pi.

Configuration Files

All configuration files can be found here.

Repositories

To be completed.

Installed Applications

Common applications

Some application from the Common configuration for Linux, namely:

sudo apt-get install git etckeeper libnss-mdns avahi-daemon mdns-scan mc autossh vim-gnome tmux

Essential

Git (git)

# Setup git repo main directory sudo useradd -s /usr/bin/git-shell -m git # User both for ssh: and git: protocol access (shell disabled) sudo su -p git # Notice -p since shell is disabled cd ~git mkdir git # This directory will store all .git repo mkdir .ssh cat ... >> .ssh/authorized_keys # Add keys of user that can use the ssh: protocol Install git-daemon (enable git: protocol): sudo apt-get install git-daemon-sysvinit sudo vi /etc/default/git-daemon # Change user to 'git' sudo /etc/init.d/git-daemon start # Start daemon Setup minecraft.git: sudo su -p git # or sudo su -s /bin/bash git cd ~git/git git init --bare minecraft.git cd minecraft.git touch git-daemon-export-ok git config --add daemon.receivepack true # no hyphen in receivepack! vi hooks/update # Install hook to prevent non-ff update exit sudo ln -sf ~git/git/minecraft.git /var/cache/git/minecraft.git

Local Applications

Application (package)

[YYYY-MM-DD] Update Additional configuration settings

Uninstalled

Application (package)

[YYYY-MM-DD] Update Additional configuration settings

Settings

Network WIFI

Check that WiFi dongle is detected with lsusb lsusb # Bus 001 Device 004: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter Check that wireless device has an interface available with iwconfig [1] [2] iwconfig # wlan0 IEEE 802.11bgn ESSID:"ManticoreNet" Nickname:"<WIFI@REALTEK>" # Mode:Managed Frequency:2.412 GHz Access Point: 00:1D:7E:0C:24:5E # Bit Rate:150 Mb/s Sensitivity:0/0 # Retry:off RTS thr:off Fragment thr:off # Power Management:off # Link Quality=100/100 Signal level=87/100 Noise level=0/100 # Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 # Tx excessive retries:0 Invalid misc:0 Missed beacon:0 We configure interface wlan0 to use WPA in roaming, and static ip address for network id home.[3] See man interfaces for instruction auto wlan0 tells that the interface should start automatically at boot wpa-roam implies that manual must be used To configure a static address, add an extra interface (here with name home), and configure this interface instead. The name must match name given in attribute id_str in file wpa_supplicant.conf. This allows to have different network configuration for different wireless networks. Wifi network credentials are stored in a separate file that only root can read File /etc/network/interfaces: auto wlan0 allow-hotplug wlan0 iface wlan0 inet manual wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf iface home inet static address 172.19.100.107 netmask 255.255.0.0 gateway 172.19.3.1 File /etc/wpa_supplicant/wpa_supplicant.conf: ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev update_config=1 network={ ssid="***********" psk="************" proto=RSN key_mgmt=WPA-PSK pairwise=CCMP TKIP group=CCMP TKIP id_str="home" } Bring up or down the interface with: sudo ifup wlan0 sudo ifdown wlan0 The following error messages can be ignored [4]: $ sudo ifup wlan0 ioctl[SIOCSIWAP]: Operation not permitted ioctl[SIOCSIWENCODEEXT]: Invalid argument ioctl[SIOCSIWENCODEEXT]: Invalid argument

Network SSH

Setup crontab to create reverse port fwding to noekeon.org - port 54901 (cfr autonoekeon.sh and crontab-autonoekeon) On noekeon.org, added to authorized_keys: no-pty,no-X11-forwarding,permitopen="localhost:54901",command="/bin/echo do-not-send-commands" ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDhjxL9dpvQfk3LeKUHGCilVk4Ng11Vu532gvGhNk7A1VJxF7vO8r5VaPbad1uKhtI+fVq1knbg ++EZw5AhBBsYdnH2SEucb9Kfjm1Ub1Im5A9PhbElFO3q/8p2gn19ULZ6VPUc48my6g0WiEnU0o11OtgLq35wZ7jXOHwClRil3LDh+s7y OnTAirQbp91A/20YpqIxmY5opgUN08mH/rcHTl1gMS0LAzK0MUJtoOAy7BqqKXRy4iMb/HYHPDGbjGpq1uIiXP/9H1opKtTcq8bQ+Oyq Jr5VYO7wVYyYWhS9d9gD2IoMpNagvW8xudAVzMjh8gGRcTArzpU4uGT22MiR pi@apple-pi Connect back to apple-pi via noekeon.org with: autossh -M 0 -f -N -n -q -L 22201:localhost:54901 noekeon ssh -p 22201 pi@localhost

To Do

Issues

• Issue — Frequently losing WiFi connection, without reconect.

• Workaround — Use a cron script to detect and force reconnect * * * * /usr/local/bin/testwifi.sh 2> /var/log/testwifi.log
• Crontab line, edited with sudo crontab -e

*/2 * * * * /usr/local/bin/testwifi.sh > /var/log/testwifi.log 2>&1

• /usr/local/bin/testwifi.sh

#echo '/usr/local/bin/testwifi.sh log'
TESTIP=172.19.100.107

#ping -c4 ${TESTIP} > /dev/null
/sbin/ifconfig wlan0 | grep --quiet $TESTIP

if [ $? != 0 ]
then
    logger -t $0 "WiFi seems down, restarting"
    sudo /sbin/ifdown --force wlan0
    sleep 10
    sudo /sbin/ifup wlan0
else
    #logger -t $0 "WiFi seems up."
    true
fi

• Reduce syslog spam by filtering out cron log. Edit /etc/rsyslog.conf [5]

diff --git a/rsyslog.conf b/rsyslog.conf
-*.*;auth,authpriv.none          -/var/log/syslog
+*.*;auth,authpriv.none,cron.none          -/var/log/syslog

• To Do — Description

Done & Fixed

• Fixed — Issue description
  Fix description
• Done — Description