Today the count of network devices at home networks grows up weekly, cause more and more home devices like freezers, coffee engines, dishwasher and more got builtin wifi interfaces. To have a Control Unit you can use a raspberry pi2 as cheap Network Monitor Logger. The Raspian by default offers builtin free tools, like arp, arp-scan, nmap, ping to easy monitor a network. If you have learned some commands and the bash scripting you can fast create a Network Logger, perhaps with analyse tools to mail alerts if new “MAC” NIC Adresses are seen. Every network device uses a owned […]
Category: Linux News
Ubuntu Vivid: Things you should change after fresh setup
If you Setup Ubuntu 15.XX on a PC there are a few things to change: open a Gnome Terminal an run (# Comments): $sudo apt-get update && apt-get dist-upgrade #Pull Updates $sudo adduser CrazY12U$ERNAME # Create a crazy Username (Standarduser, no sudo, no lpadmin) for daily work! to prevent social engineering Hacks $sudo chmod 700 /home/* # to prevent that other users look into each other homes! (check root home to “ls -l /root) $sudo passwd root # SET long Password (min.15 digits) for the root User to prevent PC recovery Console Access without Password!!! Keep Password save! $sudo apt-get […]
Ubuntu: Recover Data from old Luks Encrypted HDD to new HDD
If you prefer to use encrypted Devices you ran into a problem if you try to move, migrate or recover the files from the old luks protected home. As normal User you should know that luks is used with LVM2 Logicial Volume Manager, which manages the partitions “named based”. Major Info! Ubuntu prename the volume group with the Setup-DVD all time to the same VG_NAME called “ubuntu-vg”!!! So what do you need to migrate or recover? Download the ubuntu DVD and burn it to a disc Insert the new HDD to the Sata1 Port Plugin the ubuntu DVD for Setup […]
Ubuntu: Advantage of Classic Desktop Openbox
I am often asked what is the best Desktop Software for Linux? a good Desktop must be fast by window handling, easy to read and needs less hardware resources the fonts must be clear and easy to read animations should not break the operations, glossy windows should by easy to switch off a taskbar should always show you which apps are active and opened a taskbar should not group icons! a progam menu should open fast and should wait for user interactions, special for newbies or older people! a good Desktop Software should not force you to the need of […]
Debian Ubuntu Laptop mods for SSD HDD and a full encrypted with luks
Major INFO 06-2015: Do not set tmpfs on ubuntu 15.XX or Systems with systemd!!! This block PC boot !! If you want to setup a Ubuntu/Debian Laptop with a full encrypted HDD use a “alternate” CD/DVD. After Setup you have to change some little Parameters to extend the lifecycle of the SSD Chips disable Swap if you have more than 4GB Ram enable a RAMDISK with tmpfs for logs, caches of Browsers install cpufrequtils for CPU freqscaling install laptop-mode-tools to set powersave mode for hardware modules install xbacklight to reduce backlight energy Steps: open a Console and change to root […]
Linux Tip: Split Console Screen on Widescreen Laptop / PCs with “screen” and “terminator”
Current Laptops / PCs uses 16:9 Widescreen Displays and if you dont want to use Xorg (Gnome,unity,Openbox Desktops) you can use on Linux Console the program called “screen” it offers: – Split Consoles horizontally and vertically – disconnect the screen and let the scripts/commands active on remote Systems – reconnect if the remote Session was broken cause network problems On Gnome or unity you can use “terminator” see: – manpage of screen – http://unix.stackexchange.com/questions/7453/how-to-split-the-terminal-into-more-than-one-view
Linux Info: UEFI + GPT + Secure Boot = Dongled OS = Printing Dollars
UEFI+GPT+dongled OS = Printing endles Dollars for PC Manufacter and M$. UEFI was offered for “security reasons” but in my opinion the normal users should be prevented by this “UEFI LOCK” to use Dual Boot or remove Windows on owned hardware, in cases of Mainboard failures the Users are forced to buy new Mainboards with OS-Key. Legacy Mode on Bios will disappear in the next generation of PCs than every OS is “dongled” to Hardware like MacOS to their Products…
Linux: 46″ inch Weatherstation Display with Thinclient PC and Linux OS
With Tiny Core Linux: 46″ inch Weatherstation Display with FSC S500 Thinclient PC and Linux OS connected via DVI-D to HDMI Cable Awesome to see Satellite Images in HDTV Resolution and Full Color all developed by me. www.linuxonlinehelp.eu YOU NEED NOT to buy a “SmartTV” of Samsung cause the Thinchlient uses open Linux and offers 300% more Performance on Websurfing! No Apps needed no App-Store needed, priceless for free… All You need: – TV with Full HD and HDMI – A DVI-D to HDMI Adapter Cable – ThinClient S500 cheap used on net – Linux, i prefer Tinycorelinux cause 100% […]
Debian Linux Wheezy: Partitioning 3TB Hard Drives with GPT Table (fdisk show 2TB max.)
Problem: On Debian Linux the brand new 3TB SATA Drives only seen as 2TB Drives by fdisk Background: GPT Partition Table must be used as new technology Solution: install “gdisk” the GPT Tool for big Drives with #sudo aptitude install gdisk clean the new Drives first Table Headers with #sudo dd if=/dev/zero of=/dev/sdb count=1 bs=512 run now #sudo sgdisk /dev/sdb Command is “sgdisk” not “gdisk” = its Paket Name same on other Linux/BSD Systems on Windows use Paragon Tools
Hardware Bugs: Seagate ST3000DM001 9YN166 3TB Drives Click Noise
Problem: My brand new Seagate Drives running as Raid1 with two Seagate ST3000DM001-9YN166 on Debian clicks sometimes. Background: Noise is made by parking heads and spin control by the firmware, often seen on Home NAS (Update 2017: The Firmware of this Generation is buggy, Fault rate 70% after 2 Years) Solution: go to Manufacter Site and download the firmware update iso burn it to CD reboot the PC on this CD, using Freedos and the Update tool update the firmware and reboot to Linux again edit with sudo vi /etc/rc.conf /sbin/hdparm -W 0 /dev/sda #Systemdrive disable Cache against Powerloss! /sbin/hdparm […]
WordPress: Change Editor Font Size without Plugins
Problem: If you use wordpress and use a high resolution Screen on your Laptop or Workstation the dehault font size is too small. Solution: Edit with: #sudo nano ../wp-includes/js/tinymce/themes/advanced/skins/wp_theme/content.css change value 13 to 16 or 19 at: body { font: 16px/19px Georgia, "Times New Roman", "Bitstream Charter", Times, serif; margin: 10px; color: #000; }
Linux FreeBSD: Protect your Disc Data against power loss
Problem: If you use IDE or SATA Disc Drives inside your Workstation or Server without a additional uninterruppted power supply after a power loss your Disc Drives can lose data, do not boot clean up agian or damage the drive headers and sectors. Background: SATA or IDE Drives uses “Disc Cached Controllers”, the count of this disc cache reach from 8 to 64 megabytes. In case of data write to disc, the disc controllers do cache some data who are often used. A Raid 1 Disc Mirror is affected too by this problem. SCSI od SAS are not using Cache […]
Google Search: Goodby Google Search
Wenn Sie auch nach negativen Erfahrungen Google nicht mehr nutzen möchten kann ich Ihnen diese URL als Alternative anbieten: If you want to use a other Internet Search as Google try this URL as Homepage for your Browser http://de.search.yahoo.com/
FreeBSD Linux: Remove Clear GPT Partition Table from drives
Problem: FreeBSD 9 use GPT Partitionlabel by default to remove with Linux do: fdisk message: WARNING: GTP (GUID Partition Table) detected on '/dev/sdX' The util fdisk isn't support GPT. do on console: sudo parted /dev/sdX mklabel msdos (Enter Yes!) quit now use Linux fdisk to recreate a new partion Table
Debian Linux: Squeeze ATI Mobility M7 xorg.conf Thinkpad T30 Performance
Problem: Squeeze fglrx does not support older ATI Chips (If i view Flashvideos the CPU usage hold at 100% after change 25-30% usage !) Solution: sudo nano /etc/X11/xorg.conf and paste Section "ServerLayout" Identifier "X.org Configured" Screen 0 "Screen0" 0 0 InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "Files" ModulePath "/usr/lib/xorg/modules" FontPath "/usr/share/fonts/X11/misc" FontPath "/usr/share/fonts/X11/cyrillic" FontPath "/usr/share/fonts/X11/100dpi/:unscaled" FontPath "/usr/share/fonts/X11/75dpi/:unscaled" FontPath "/usr/share/fonts/X11/Type1" FontPath "/usr/share/fonts/X11/100dpi" FontPath "/usr/share/fonts/X11/75dpi" FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType" FontPath "built-ins" EndSection Section "Module" Load "extmod" Load "glx" Load "dri" Load "dbe" Load "record" Load "dri2" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" EndSection Section "InputDevice" Identifier "Mouse0" Driver "mouse" Option "Protocol" […]
Debian Linux: Squeeze ATI Fire GL T2 Thinkpad R50p xorg.conf with 3D
Problem: Squeeze Kernel does not Support older ATI chips with fglrx Solution: edit with sudo nano /etc/X11/xorg.conf and paste (Remark: use Driver “ati” for 3D , use “radeon” for sometimes faster flashvideos) Section "ServerLayout" Identifier "X.org Configured" Screen 0 "Screen0" 0 0 InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "Files" ModulePath "/usr/lib/xorg/modules" FontPath "/usr/share/fonts/X11/misc" FontPath "/usr/share/fonts/X11/cyrillic" FontPath "/usr/share/fonts/X11/100dpi/:unscaled" FontPath "/usr/share/fonts/X11/75dpi/:unscaled" FontPath "/usr/share/fonts/X11/Type1" FontPath "/usr/share/fonts/X11/100dpi" FontPath "/usr/share/fonts/X11/75dpi" FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType" FontPath "built-ins" EndSection Section "Module" Load "extmod" Load "dri2" Load "record" Load "dbe" Load "glx" Load "dri" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" Option "xkblayout" "de" EndSection Section "InputDevice" Identifier […]