Embedded Files
just my notes
just my notes
Posted: 02/20/2015 | Author: lokir | Filed under: Other | Leave a comment
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:
Posted: 04/28/2014 | Author: lokir | Filed under: linux | Leave a comment
#!/bin/bash
# Author(s): Chris Trombley
LIST=""
LIST=$(cat /var/log/auth.log | grep "authentication failure" | awk '{print$14}' | grep -v tty=ssh |sed -e 's/rhost=//g' -e 's/ /_/g' | uniq)
excludeList=( "10.10.6.1" "10.10.9.207" "static-xxx-xxx-xxx-xxx.isp.domain.net" )
function chkExcludeList()
{
for j in "${excludeList[@]}"; do
if [[ "$1" == $j ]]; then
return 10
fi
done
return 11
}
for i in $LIST; do
chkExcludeList "$i"
if [ $? != "10" ]; then
if [ "$(grep $i /etc/hosts.deny)" = "" ]; then
echo "ALL: $i : DENY" >> /etc/hosts.deny
fi
fi
done
Posted: 03/22/2013 | Author: lokir | Filed under: linux | Tags: Linux | Leave a comment
find PATH TO FILES GOES HERE* -mtime +5 -exec COMMAND GOES HERE {} \;
Posted: 02/10/2013 | Author: lokir | Filed under: Munin | Tags: Munin | Leave a comment
After installation of new service on server is nice to update Munin plug-ins.
munin-node-configure
/usr/sbin/munin-node-configure --suggest
/usr/sbin/munin-node-configure --shell | sh
/etc/init.d/munin-node restart
Plug-in list is up-to-date.
Posted: 01/12/2013 | Author: lokir | Filed under: raspberry pi | Leave a comment
Increase video buffering:
Create a file advancedsettings.xml here /Storage/.xbmc/userdata
<advancedsettings>
<network>
<cachemembuffersize>30242880</cachemembuffersize>
</network>
<fanartheight>560</fanartheight>
<thumbsize>256</thumbsize>
<gui>
<algorithmdirtyregions>3</algorithmdirtyregions>
<nofliptimeout>0</nofliptimeout>
</gui>
<bginfoloadermaxthreads>2</bginfoloadermaxthreads>
</advancedsettings>
more settings here: http://mrpfister.com/journal/setting-up-openelec-on-the-raspberry-pi/#comment-31801
Overclocking:
(Be careful those setting will void your warranty)
/system/config.txt
arm_freq=850
core_freq=250
sdram_freq=400
force_turbo=1
initial_turbo=30
disable_overscan=1
hdmi_force_hotplug=1
Posted: 01/05/2013 | Author: lokir | Filed under: raspberry pi | 7 Comments
echo Raspberry Pi SysInfo.
echo ---------------------
MHZ=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq)
TEMPE=$(cat /sys/class/thermal/thermal_zone0/temp)
echo Hardware:
echo CPU Speed $(($MHZ/1000)) Mhz "|" CPU Temp $(($TEMPE/1000)) C
output:
Raspberry Pi SysInfo.
---------------------
Hardware:
CPU Speed 850 Mhz | CPU Temp 28 C
gconftool-2 --set "/apps/metacity/general/button_layout" --type string ":minimize,maximize,close"
Posted: 10/20/2012 | Author: lokir | Filed under: Other | Tags: Raspberry Pi | 2 Comments
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
Posted: 10/13/2012 | Author: lokir | Filed under: Other | Tags: Debian, Linux, Raspberry Pi, swap | Leave a comment
sudo nano /etc/dphys-swapfile
sudo dphys-swapfile setup
sudo dphys-swapfile swapon
Posted: 10/04/2012 | Author: lokir | Filed under: Other | Tags: Linux, memory | Leave a comment
ps -elf|awk '{print $10, $3, $4, $15, $16}'|sort -nr|head
Posted: 09/16/2012 | Author: lokir | Filed under: Other, raspberry pi | Tags: Chromium, Raspberry Pi | 48 Comments
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.
Posted: 11/08/2010 | Author: lokir | Filed under: ubuntu | Tags: wifi ubuntu | Leave a comment
1. The Debian Avahi (nss-mdns) Bug
There is a known bug doing the rounds in Debian based distros, this includes Ubuntu.
The problem is in the nsswitch.conf file where wins mdns causes a slowdown of DNS resolution on some machines.
https://bugs.launchpad.net/ubuntu/+s…ahi/+bug/94940
A simple workaround for this problem is to remove mdns4_minimal entry from the nsswitch.conf file, or change mdns4_minimal to just mdns4 (whichever works best for you):
Edit this file- /etc/nsswitch.conf
Scroll down to the entry which says:
hosts: files dns wins mdns4_minimal
and delete the mdns4_minimal entry. (I removed wins as well), s it looks like this:
hosts: files dns
2. Check your DNS in resolv.conf
You should only have two entries (usually) which are your Internet Service Provider’s DNS servers.
Check and/or edit your dns servers:
gksudo scite /etc/resolv.conf
It should look something like this:
search my.isp.com
nameserver 4.4.2.2
nameserver 4.4.2.4
You may have an extra IP address there, possibly your router (192.168.1.1), and if you haven’t got dns servers configured in your router config, this may cause a problem/slowdown as well. EG:
search my.isp.com
nameserver 192.168.1.1
nameserver 4.4.2.2
nameserver 4.4.2.4
Just remove the first one and leave the two ISP DNS server IP’s.
original link http://ubuntuforums.org/showthread.php?t=1487039&page=2
Posted: 11/05/2010 | Author: lokir | Filed under: ubuntu | Leave a comment
sudo iwconfig wlan0 rate 54M
Available rates: 1, 2, 6, 9, 12, 18, 24, 36, 48 and 54
—
Posted: 06/19/2010 | Author: lokir | Filed under: ubuntu | Leave a comment
gconf-editor – gnome configuration tool
rcconf – system services configuration tool
Posted: 05/11/2010 | Author: lokir | Filed under: ubuntu | Leave a comment
1. Open a Terminal and type
gksudo gedit /etc/fstab
2. Add this line
/dev/sdaX /media/sdaX ntfs-3g user,defaults 0 0
X – depend on your partition layout. To check partition layout type:
sudo fdisk -l
—
Posted: 04/30/2010 | Author: lokir | Filed under: ubuntu | 2 Comments
1 Open terminal or press Alt+F2
gconf-editor
2. locate this
/apps/nautilus/preferences/always_use_location_entry
and tick a box.
Source: http://ubuntuforums.org/showthread.php?t=77346
—
Posted: 04/17/2010 | Author: lokir | Filed under: ubuntu | Leave a comment
1. touch /etc/X11/xorg.conf
2. open file and paste this:
Section "Monitor"
Identifier "Monitor1"
Vendorname "Generic LCD"
Horizsync 31.5-48.0
Vertrefresh 56.0-65.0
EndSection
Section "Screen"
Identifier "Screen1"
Monitor "Monitor1"
Subsection "Display"
Modes "1024x768" "800x600"
EndSubsection
EndSection
3. save & restart xorg
Posted: 03/27/2010 | Author: lokir | Filed under: ubuntu | Leave a comment
tools:
htop, nload, wavemon, mtr
games:
tetris, greed, ninvaders
eye candy:
cmatrix
Posted: 03/22/2010 | Author: lokir | Filed under: ubuntu | Leave a comment
to make a new rule:
sudo iptables -I INPUT -s 11.11.11.11 -j DROP
—
to delete a rule:
sudo iptables -D INPUT x
x=rule number
—
to list iptables rules:
iptables -L
Posted: 03/19/2010 | Author: lokir | Filed under: ubuntu | Leave a comment
sudo aptitude install nautilus-image-converter
right click on a picture
– resize
– rotate
Posted: 02/23/2010 | Author: lokir | Filed under: ubuntu | Tags: swap, swappiness | 1 Comment
The swappiness parameter controls the tendency of the kernel to move processes out of physical memory and onto the swap disk. Because disks are much slower than RAM, this can lead to slower response times for system and applications if processes are too aggressively moved out of memory.
swappiness can have a value of between 0 and 100
swappiness=0 tells the kernel to avoid swapping processes out of physical memory for as long as possible
swappiness=100 tells the kernel to aggressively swap processes out of physical memory and move them to swap cache
The default setting in Ubuntu is swappiness=60. Reducing the default value of swappiness will probably improve overall performance for a typical Ubuntu desktop installation. A value of swappiness=10 is recommended, but feel free to experiment. Note: Ubuntu server installations have different performance requirements to desktop systems, and the default value of 60 is likely more suitable.
To check the swappiness value
cat /proc/sys/vm/swappiness
To change the swappiness value A temporary change (lost on reboot) with a swappiness value of 10 can be made with
sudo sysctl vm.swappiness=10
To make a change permanent, edit the configuration file with your favorite editor:
gksudo gedit /etc/sysctl.conf
Search for vm.swappiness and change its value as desired. If vm.swappiness does not exist, add it to the end of the file like so:
vm.swappiness=10
Save the file and reboot.
——–
original article https://help.ubuntu.com/community/SwapFaq
Posted: 02/23/2010 | Author: lokir | Filed under: ubuntu | Tags: ubuntu, vodafone | Leave a comment
Vodafone Pay As You Go (UK) config
APN is pp.internet should be ppbundle.internet
user / password: web / web
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