Enabling SNMP on an ASUS RT-N66U

via telnet execute:

ipkg update
ipkg install net-snmp
app_set_enabled.sh net-snmp yes

full original post: http://daniel.abbatt.net/2014/11/enabling-snmp-on-asus-rt-n66u.html

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Raspberry pi monitoring with Munin

Original post:  http://www.aymerick.com/2013/12/25/munin_client_on_raspberrypi.html

Add this line:

[pisense_*]
user root

to

/etc/munin/plugin-conf.d/munin-node
cd /usr/share/munin/plugins

sudo wget -O pisense_ https://raw.github.com/perception101/pisense/master/pisense_
sudo chmod a+x pisense_
sudo ln -s /usr/share/munin/plugins/pisense_ /etc/munin/plugins/pisense_temp
sudo ln -s /usr/share/munin/plugins/pisense_ /etc/munin/plugins/pisense_clock

Example output:
pisense_temp-day


Raspberry PI 512 MB RAM – memory split

New Raspberry PI 512 MB of RAM possible memory splits:


arm128_start.elf
arm192_start.elf
arm224_start.elf
arm240_start.elf
arm256_start.elf
arm384_start.elf
arm448_start.elf
arm496_start.elf


Raspberry Pi Debian – How to change swap size

sudo nano /etc/dphys-swapfile
sudo dphys-swapfile setup
sudo dphys-swapfile swapon


Linux – how to check which process is using most memory

ps -elf|awk '{print $10, $3, $4, $15, $16}'|sort -nr|head


Raspberry PI kiosk mode with Chromium.

1. Install chromium, x11-xserver-utils and unclutter

sudo apt-get update && apt-get upgrade -y
sudo apt-get install chromium x11-xserver-utils unclutter

2. We need to prevent screen from going blank and disable screen saver.
– edit /etc/xdg/lxsession/LXDE/autostart and comment # screen saver line and add those lines:

@xset s off
@xset -dpms
@xset s noblank
@chromium --kiosk --incognito http://some.web.

Done.