Category: Linux News

Review: Tiny powerful MP3 Player

If you look for a Travel MP3 Player which is useful, powerful and easy to handle you should take closer look on this Odys MP3 Player. Advantages: Battery Powered 1x Standard AAA High Output Anti Shock Resistent Low Price Ease to handle Equalizer (not often needed) Output for 2 Persons Dual Stereo Jack Sun readable Display with Backlight for Nights Different Play Modes, Shuffle, Repeat and Repeat all Much louder than most Smartphones! Hard Case for Jogging / Outdoor usage Can update older Ghetto Blasters with MP3 Option Can offer a local Home “FM” Radio Station with a 3,5mm Stereo to FM […]

Raspberry Pi: Resize Shrink SDCard Image Clone Backup Noobs

If you own a raspberry pi, in some cases it is useful to shrink the sdcard, cause you need often not more than 8/16GB. What do you need and how to solve shinking or extending the OS: Hardware you need: 2 empty SDCards (Source + Dest.) 2 SDCard Adaptors Micro-SD to SD Fullsize 2 SD-USB Card Readers, i use them for stable work, cause USB SDCard Readers on Laptops often fails (Shared Sources) 1 Laptop with Ubuntu CD inside the CD-Rom or installed ubuntu with gparted Howto: Plug the Cards into the Adaptors and into the Readers, connect to the […]

Rasperry Pi: SD Card Partitions Layout Noobs Backup Restore

If you use a raspberry pi for projects which is shipped with a 8GB SDCard it is very useful to know basics about the root, file and recovery system on the preinstalled card. Major Basics about the Partitioning you find here To save time the raspberry pi offers possibility to run a Full Backup if the pi is ONLINE! Cause the OS is running from RAM like Live Mode! For Backup you need a USB to SDCard Reader with Adaptor Micro SD to SD, and a second SDCard i use 16GB Class 10 Plugin the new SDCard into the Adaptor and into […]

Amazon: Cloud Drive Sharing with NFS on Local Network as Photo Uploader Backup

Current the acd_cli tool for amazon drive mount offers no “fsid” (device /dev) point, that you cant export and share the amazon drive at your home local network. On the latest raspberry pi OS (jessie) you can use a small workaround to get a NFS Shared Amazon Cloud Backup Uploader (needs python3.4 !) install acd_cli tools, create the auth file (read) and  run $ sudo acd_cli mount /amazoncloud now create a second Folder /sendtoamazon install nfs-kernel-Server and share this Folder with NFS exports to your LAN on the raspberrypi you can use a cron “move” Job running every 10 Minutes: #crontab -e */10 * […]

Openmips: Upgrade Gigablue Firmware Failure Boot Freeze Enigma

If you own a Gigablue TV Box ( Gigablue UE 800 2 Tuner DVB-S + DVB-C for example) a reboot on Firmware 4.2 can lookup the box to factory reset. This did my box too. I decided to upgrade the Firmware from openmips 4.2 to current 5.4. But you ran into some bugs, like freezes on Firmware flashes! Hang on Reboot, or boot after Flash into old Firmware. I found some Workarounds to fix (I have a gigabue with 2 Tuners inside and a HDD) To upgrade you need 3 USB Sticks 4GB FAT32 formated Go to the official Downloadpage and download […]

Raspberry Pi: Raspian disadvantages of embedded OS

The last 12 month have been a “golden” time of the upcomming embedded linux devices, but the custom OS’s offers some problems, you should know for projects: embedded PC’s like the ARM based pi2 / pi3 uses a own compiled OS not every known debian package is available not all compile scripts to rebuild are available on git slow performance can let you run into unuseable problems (heat, load, I/O), correct written scripts run into freezes without any error made by you! you should take time for a closer look at buying them calc the costs of non-x86 systems, later […]

Security: Harden DSL Routers and Networks against attacks

Last days there was a high count of news about the Bot Attacks against T-Com Telekom Router devices. To understand the behavior about this up comming security problems you should know following points : Every network supported device can be a goal for a attack ( Routers, Modems, PC, Fridges,IP-TV, IP Switches, IP-Cams…) You have to update the OS for each device monthly, if not supported by the manufacter, then dont buy! Try to get Opensource Hardware with Opensource Software for full access (ssh / console) to have full control Reduce the count of devices who are connected direct to […]

Android: Remove builtin Bloatware without hacking rooting or root-firmware

Last Weeks i got a new Smartphone, it offered 8GB Rom for OS and Apps. Iam not a real fan of rooting, cause i didnt write/change the firmware, i found a other way to tune the System: Dont insert a SIM CARD! After first Boot DONT CREATE a Google Account! Then go i to Apps Manager at Settings and try to disable all unwanted Apps! By default the Manufacterer install a very small and Basic App-Links which is updated later by the Playstore to a newer and much bigger one! Most Apps are min 50%-80% bigger than the factory Apps. The disabling […]

Facebook: Use Socialmedia without App Install Safe Battery Lifetime

If you use facebook and the facebook-messenger try to remove these apps cause they alway scan YOUR DEVICE permanent for NEW Files and watch for YOUR updated DATA. These Apps CREATE Indexes and upload this to the dark Facebook Cloud Servers.  This kills your battery capacitiy!! mostly 50% of online time!! and destroy’s your PRIVACY! and blow up your ROM at your Mobile Device Workaround: Use a small browser like builtin webview of Android or firefox Enter http://m.facebook.de to connect yourself to the fb-network This saves much energy and you are NOT permanent scanned!! Try and test it one week, i did […]

Fritzbox: Freezing Wifi if USB 3.0 is used

Today i was touched by a Bug of my fritzbox 7490, after installing a USB 3.0 Stick as NAS the Wifi connect was broken to all devices! After some search on net i found this post: http://avm.de/service/fritzbox/fritzbox-7490/wissensdatenbank/publication/show/1636_WLAN-Stoerungen-bei-angeschlossenem-USB-3-0-Geraet/ Background: The high magnetic frequency’s of USB 3.0 data transfer inside the cable or stick hangup the WIFI chips! It works like a WIFI JAMMER!! DONT USE A ROUTER AS NAS! If it fails or overheat all devices are offline!! It’s a really big joke that most Manufacter sell devices without TESTING!! I call it Banana Hardware..

WordPress: RSS Widget Bug builtin Widget (class-wp-widget-rss.php)

Details: If you enable the basic builtin RSS Widget Module and set the RSS Feed URL like http://www.domainname.com/feed/ the widget set the URL only on the little “RSS Icon” but NOT on the RSS Hyperlink ! The Hyperlink is pulling the Value of $url (www.domainname.com) but not adding “/feed/” subdir value. Solution: go ../wp-includes/widgets/ edit with $nano class-wp-widget-rss.php go line 81 show title “rsswidget”  href ” ‘  .  esc_url ( $link ) .  #change here $link to $url exit and save.. check results..

Ubuntu: Create USB Live System Stick for Live Mode or Emergency Help

For all Users, especially Newbies its VERY helpful to have a Rescue System on a USB Stick if a Major Update/Release Change fails or break the System. To this the Ubuntu-ON-RAM Live System is very useful at public shared PCs for Online Banking etc., cause after every reboot all old Firefox Data are safe deleted!! How to create this VERY helpful Tool Stick for free? All you need is the latest Ubuntu-ISO file (AMD64-15.04 – 64bit) a new 4/8GB USB Stick (take a good Brand! to get a high quality tool). Howto: Burn the ISO to DVD/CD (NON-Linux-PC) Boot your […]

Security: Webserver HTTPS with Self Signed Certificate Do it yourself in 5 Minutes!!

Today the Point of Security and encrypted Webserver Communication is rolling over every User who hosts own Websites on the Internet. Last decades HTTPS was only used by Online Login Pages like Shops and Banks to verify the Communication between a User PC and the Website. But after January 2015 the most Search Engines like google decides to force index of Websites with HTTPS Protocol. The Background is that a TLS encrypted Connection isn’t easy to track and to force “drive-by-load-Viruses” to the Website Visitors. But a lot of Webmasters of the Opensource Community were angry about this handling. Thats […]

Raspberry Pi: Howto build a Local Network Monitor for Intrusion Logging Watchdog

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 […]

Impressum Datenschutz-DSGVO-GDPR

Last Update 08.10.2023 www.linuxonlinehelp.eu - Nonprofit Linux PC & Server Support since 2004 Tags: Linux Online Help, Linuxonlinehelp, Linux Support, Linux Hilfe