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by ghans
Sat Nov 18, 2017 8:22 am
Forum: General discussion
Topic: Secure delete/erase SD using encryption
Replies: 4
Views: 77

Re: Secure delete/erase SD using encryption

1) Any rotating harddrive of the last century only needs to be overwritten once to destroy all data on it irrecoverably thanks to the ever-increasing storage densities. 35 or 7 pass solutions herald from the age of 5 " floppies and 2 MB harddisks. 2) Non-deniable deletion of data on SSDs and SD card...
by ghans
Wed Nov 15, 2017 11:34 am
Forum: Beginners
Topic: How to store correctly password of custom software
Replies: 3
Views: 167

Re: How to store correctly password of custom software

Both the Linux kernel and GNOME have a keyring facility ... but this just shifts the responsibility around.

Take some time to think about following questions :

1) How does a password manager work ?
2) How does a password manager protect you against a rootkit or keyloggers ?

ghans
by ghans
Thu Nov 09, 2017 9:58 pm
Forum: Beginners
Topic: Which language to choose?
Replies: 2
Views: 134

Re: Which language to choose?

https://github.com/dddomodossola/remi If you use this library , you will only have to learn Python , not even HTML. You only need to use one single language (PHP , Java , Python , nodejs , any other language) on the server side. You can mix languages on the server side but i see no practical reason ...
by ghans
Thu Nov 09, 2017 12:34 pm
Forum: Troubleshooting
Topic: Please HELP! External SSH
Replies: 6
Views: 206

Re: Please HELP! External SSH

If your router doesn't support NAT hairpinning , you will not be able to test your port forwards properly. You must use a smartphone over 3G or public WiFi at Starbucks/your library/friend etc.

Secondly , use SFTP instead of FTP. It is much more secure and much easier to port forward/firewall.

ghans
by ghans
Thu Nov 09, 2017 7:48 am
Forum: Troubleshooting
Topic: Please HELP! External SSH
Replies: 6
Views: 206

Re: Please HELP! External SSH

Does your router support NAT hairpin / loopback ?

ghans
by ghans
Thu Nov 09, 2017 7:16 am
Forum: Automation, sensing and robotics
Topic: Raspberry Pi Bluetooth camera
Replies: 3
Views: 267

Re: Raspberry Pi Bluetooth camera

Use WiFi. You don't need an internet connection for WiFi to work.

ghans
by ghans
Mon Nov 06, 2017 6:58 am
Forum: Advanced users
Topic: Can I use a Pi0 as a GPU for a Pi3b?
Replies: 4
Views: 198

Re: Can I use a Pi0 as a GPU for a Pi3b?

For the old driver , use this :

https://www.opengl.org/discussion_board ... -framework

For the new driver , use this :

https://virtualgl.org/About/Introduction


ghans
by ghans
Sun Nov 05, 2017 11:27 am
Forum: General discussion
Topic: Best disk hygiene practices for cheapskates
Replies: 21
Views: 767

Re: Best disk hygiene practices for cheapskates

1) Disks can be configured (at the factory) for 24h operation or as external disk. Using a disk in the opposite configuration might affect health negatively. Check before you buy. 2) The powersave modes and standby times of some disks can be adjusted with hdparm 3) smartmontools can constantly monit...
by ghans
Fri Nov 03, 2017 7:41 am
Forum: Raspbian
Topic: Benchmark Programs & Self Diagnosis Software for Raspbian
Replies: 1
Views: 153

Re: Benchmark Programs & Self Diagnosis Software for Raspbian

1) Are you really runnning the latest image ? The one from September 2017 ?
2) Did you enable the experimental graphics driver in raspi-config ? (Be careful , it's somewhat unstable , take a backup)


ghans
by ghans
Fri Nov 03, 2017 7:32 am
Forum: Beginners
Topic: Which language is the best to make this project in Raspberry Pi?
Replies: 2
Views: 183

Re: Which language is the best to make this project in Raspberry Pi?

Java is supported on the Pi. If you are fluent in Java you can put those skills to use
on Raspbian too.

ghans
by ghans
Tue Oct 31, 2017 7:50 am
Forum: General discussion
Topic: boot off USB drive - easy ways to expand file system?
Replies: 6
Views: 259

Re: boot off USB drive - easy ways to expand file system?

gparted is what you want. It only works on Linux.

ghans
by ghans
Tue Oct 31, 2017 7:42 am
Forum: Advanced users
Topic: Running a compiled C program to output HTML for a RPi browser
Replies: 4
Views: 222

Re: Running a compiled C program to output HTML for a RPi browser

You need to plug your program into a webserver like Apache2 or lighttpd. You program
acts as CGI application in such a scenario.

ghans
by ghans
Mon Oct 30, 2017 10:36 am
Forum: Beginners
Topic: Streaming video wirelessly to phone.
Replies: 3
Views: 170

Re: Streaming video wirelessly to phone.

A wireless analogue camera + analogue LCD screen would be result in a cheaper and more rugged setup.

ghans
by ghans
Sun Oct 29, 2017 12:08 pm
Forum: Beginners
Topic: making a com system without a modem?
Replies: 2
Views: 172

Re: making a com system without a modem?

The Raspberry Pi 3 can turn itself into a WiFi acess point. Using off-the-shelf WiFi technology
is the easiest and most sensible option anyway. All other Raspberry models can be cheaply upgraded with USB WiFi dongles for wireless comms.

ghans
by ghans
Fri Oct 27, 2017 6:05 am
Forum: OpenGLES
Topic: OpenGL ES on X Error
Replies: 8
Views: 1023

Re: OpenGL ES on X Error

The foundation renamed some libraries in August 2017 to clear up some confusion. libGLESv2.so became libbrcmGLESv2.so libEGL.so became libbrcmEGL.so and so on. Why ? It turns out Mesa ships libraries with exactly the same name and people were gettting confused which libraries were from Mesa and whic...
by ghans
Mon Oct 23, 2017 7:21 am
Forum: Advanced users
Topic: Reduce customized Raspbian image size for sharing
Replies: 14
Views: 633

Re: Reduce customized Raspbian image size for sharing

Windows only mounts the first partition on removable media.

The Pi expects the first partition to be FAT. It doesn't support UDF , HFS , NTFS or anything else on the boot partition.

ghans
by ghans
Sun Oct 22, 2017 11:43 am
Forum: Advanced users
Topic: Reduce customized Raspbian image size for sharing
Replies: 14
Views: 633

Re: Reduce customized Raspbian image size for sharing

All proper tools to handle Pi images are only available on Linux. gparted is one of them.


ghans
by ghans
Sun Oct 22, 2017 11:08 am
Forum: Beginners
Topic: I need help to run windows games on a PI.
Replies: 14
Views: 478

Re: I need help with stuff

You've wasted your money. The Pi doesn't run Wintel/x86 software. Beg your publishers
to rewrite their stuff for ARM and hope they do it for free.

ghans
by ghans
Sun Oct 22, 2017 11:00 am
Forum: Advanced users
Topic: Reduce customized Raspbian image size for sharing
Replies: 14
Views: 633

Re: Reduce customized Raspbian image size for sharing

Burn a gparted live CD and use it with your image.

ghans
by ghans
Sat Oct 21, 2017 8:31 am
Forum: Deutsch
Topic: "Microsoft" DHCP-Service auf dem PI ?
Replies: 10
Views: 728

Re: "Microsoft" DHCP-Service auf dem PI ?

Es gibt keinen DHCP server der auf dem Raspberry Pi läuft und per Microsoft RSAT konfigurierbar ist.

ghans
by ghans
Fri Oct 20, 2017 7:25 am
Forum: General programming discussion
Topic: Guidance on language for GUI Python or ??
Replies: 5
Views: 687

Re: Guidance on language for GUI Python or ??

If you know C++ , did you look into Qt5 ?

ghans
by ghans
Thu Oct 19, 2017 5:45 am
Forum: Bare metal
Topic: wheezy libc optimisation
Replies: 4
Views: 627

Re: wheezy libc optimisation

Look in /etc/ld.so.preload and/or /etc/ld.so.conf
by ghans
Wed Oct 18, 2017 1:31 pm
Forum: Bare metal
Topic: wheezy libc optimisation
Replies: 4
Views: 627

Re: wheezy libc optimisation

by ghans
Thu Oct 12, 2017 8:30 am
Forum: General discussion
Topic: Why do new forum members not come back?
Replies: 42
Views: 2677

Re: Why do new forum members not come back?

Thos forum does not send you EMails when someone of replies to your threads by default.

ghans

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