Go to advanced search

by rtfmoz
Tue Jun 23, 2020 6:59 am
Forum: Advanced users
Topic: Pi4: Moved ~/.cache to 256MB tmpfs
Replies: 2
Views: 400

Pi4: Moved ~/.cache to 256MB tmpfs

After successfully booting 64bit PiOS beta from an external SSD I noticed the speed improvement straight away. However I still noticed the browser was chugging along slowly even after removing rpi-chromium-mods. It loads a lot faster that for sure. But the general performance was not what I would ex...
by rtfmoz
Mon Jun 22, 2020 2:30 am
Forum: General discussion
Topic: xRDP access on demand?
Replies: 0
Views: 133

xRDP access on demand?

Hi all! I disabled GUI login and installed remote access using RDP with apt install xrdp ; reboot to provide on-demand desktop environment. My question is would it be better to just leave the desktop login enabled? I know the initial connection would be faster if I did as its spinning up a desktop x...
by rtfmoz
Mon Jun 22, 2020 1:25 am
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 608
Views: 127624

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

Installed on Pi4 4GB v1.1 no issues, tested the following packages... Telegram Desktop Client apt install telegram-desktop NGINX w/PHP apt install nginx php-fpm Tested above integration with phpinfo() - using this guide . Disabled GUI login and installed remote access using RDP successfully with apt...
by rtfmoz
Mon Jun 15, 2020 12:26 pm
Forum: Raspberry Pi OS
Topic: Security: The boot process
Replies: 17
Views: 1780

Re: Security: The boot process

From issue #1302 raised for this... https://github.com/raspberrypi/documentation/issues/1302#issuecomment-644029874 Pi4 powers on BCM2711 looks for recovery.bin on first partition of SD card if recovery.bin exists (and is "a valid executable"): BCM2711 loads and runs recovery.bin recovery....
by rtfmoz
Wed Nov 06, 2019 10:05 pm
Forum: Networking and servers
Topic: Internet Gateway w/DHCP, DNS, netfilter [SOLVED]
Replies: 7
Views: 1627

Re: Internet Gateway w/DHCP, DNS, netfilter

After your message I did some further investigation. Turning off systemd-networkd an removing that config I went back to dhcpcd and discovered the parameters I needed. The final pieces I added to dhcpcd are below. The key was static and nogateway. Static stops dhcpcd treating it as a dynamic address...
by rtfmoz
Wed Nov 06, 2019 9:32 pm
Forum: Networking and servers
Topic: Internet Gateway w/DHCP, DNS, netfilter [SOLVED]
Replies: 7
Views: 1627

Re: Internet Gateway w/DHCP, DNS, netfilter

There is no need for systemd-networkd in this case. On Raspbian dhcpcd will take care of configuring any existing network interface. To create interfaces you'd use systemd-networkd (or the dreaded interfaces file) In dhcpcd.conf when you "denyinterface foo" you actually disable processing...
by rtfmoz
Wed Nov 06, 2019 12:29 pm
Forum: Networking and servers
Topic: Internet Gateway w/DHCP, DNS, netfilter [SOLVED]
Replies: 7
Views: 1627

Re: Internet Gateway w/DHCP, DNS, netfilter

Configured the networking as you suggested. I had to enable the system-networkd subsystem as it was disabled. I have a better firewall ruleset now for nftables.. see below. table inet filter { chain input { type filter hook input priority 0; policy drop; iif "lo" accept iif "eth0"...
by rtfmoz
Tue Nov 05, 2019 10:05 am
Forum: Networking and servers
Topic: Internet Gateway w/DHCP, DNS, netfilter [SOLVED]
Replies: 7
Views: 1627

Re: Networking Struggles with Raspbian

Well I tried flicking back to dhcpcd for configuring eth0 since I could do it in the GUI that way on the Raspbian Desktop. But it doesn't work so went back to interface files. Only one file this time for eth0 and now it's working again. Something funky going on.. too low level for me.
by rtfmoz
Tue Nov 05, 2019 7:07 am
Forum: Networking and servers
Topic: Internet Gateway w/DHCP, DNS, netfilter [SOLVED]
Replies: 7
Views: 1627

Internet Gateway w/DHCP, DNS, netfilter [SOLVED]

So I had a fun weekend building this... but since my knowledge of the Debian way of doing things is limited, I wanted someone with an experienced eye to review. https://u.teknik.io/ewlr7.png Users connect to the wireless AP (AE) operating in bridge mode or they connect direct via ethernet to switch....
by rtfmoz
Wed Oct 09, 2019 11:53 pm
Forum: Raspberry Pi OS
Topic: Security: The boot process
Replies: 17
Views: 1780

Re: Security: The boot process

The Pi4 bootloader doesn't even look for a bootcode.bin, it just runs the bootcode from the EEPROM. As for the security, there are options here that I am not able to talk about at this stage. Thank you for your reply! Much appreciated. In order to hack the EEPROM in the first place, you WILL need r...
by rtfmoz
Wed Oct 09, 2019 11:44 pm
Forum: Raspberry Pi OS
Topic: Security: The boot process
Replies: 17
Views: 1780

Re: Security: The boot process

It always worries me when these security folks come asking & inferring that the RPi is insecure. It is a standard question. You bring an inference by mentioning it. The Raspberry Pi is what it is, a tool designed to promote education in the electronics industry by enabling youth to take an inte...
by rtfmoz
Tue Oct 08, 2019 11:43 pm
Forum: Raspberry Pi OS
Topic: Security: The boot process
Replies: 17
Views: 1780

Security: The boot process

If these devices get used for point solutions across an enterprise the security of the device has to be assessed. So with a security hat on I have a few questions regarding the Raspberry Pi4... When Rasbian boots on the Pi4 are there any checks to validate the boot EEPROM just used is foundation iss...
by rtfmoz
Tue Oct 08, 2019 11:06 pm
Forum: General discussion
Topic: Raspberry Pi 4 usb boot?
Replies: 574
Views: 245687

Re: Raspberry Pi 4 usb boot?

If the EEPROM is writable and accessible it is hackable. To make use of "hackable" EEPROM on the pi4 one would need to: 1a) hack the os remotely and gain root access. or 1b) have local physical access 2) Have deep knowledge of VC4/6 hardware and software architecture and have knowledge of...
by rtfmoz
Wed Sep 25, 2019 12:21 am
Forum: User groups and events
Topic: Anyone in Tasmania Australia
Replies: 3
Views: 3619

Re: Anyone in Tasmania Australia

Oh, to be living in Tassie.. that would be lovely. I co-host a Sydney meetup so feel free to come say hi at ozberrypi if you would like any guidance.
by rtfmoz
Tue Sep 24, 2019 10:55 pm
Forum: Raspberry Pi OS
Topic: Flash Player not needed for Scratch 3
Replies: 4
Views: 477

Re: Flash Player not needed for Scratch 3

Well there wasn't one. I'd be interested to know what other chromium optimisations are included in rpi-chromium-mods. I’ll do some tests tonight and see what the memory usage differences are.
by rtfmoz
Tue Sep 24, 2019 10:37 pm
Forum: Raspberry Pi OS
Topic: Flash Player not needed for Scratch 3
Replies: 4
Views: 477

Re: Flash Player not needed for Scratch 3

Oh... thanks for that. I don't frequent this place anywhere near enough to keep in top of a desktop I've only started using now the Pi4 was released. I'll have to look up the announcement.
by rtfmoz
Tue Sep 24, 2019 7:36 am
Forum: Raspberry Pi OS
Topic: Flash Player not needed for Scratch 3
Replies: 4
Views: 477

Flash Player not needed for Scratch 3

I can happily report that the latest version of the Raspbian updates supports the installation of Scratch 3. This does not require Flash at all. Run update then upgrade. Then go to recommend software in PIXEL preferences and tick the box for Scratch 3. sudo apt remove rpi-chromium-mods Gets rid of F...
by rtfmoz
Sun Sep 08, 2019 11:40 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: PCIe access for storage
Replies: 2
Views: 363

PCIe access for storage

Hi, I've searched and been unable to find anything related. So please excuse my noob question. What I want is to create a storage SHIM or HAT which does not consume a USB3.0 interface. Something I can link internally to gain access to PCIe for storage and data retrieval. It's a given that a kernel d...
by rtfmoz
Tue Sep 03, 2019 10:56 am
Forum: General discussion
Topic: RPi 4 : Lost GPIO-3 restart (and fix)
Replies: 34
Views: 20014

Re: RPi 4 : Lost GPIO-3 restart (and fix)

Fantastic fix thank you.

Did anyone get a read on the power draw before and after the bootloader fix?
by rtfmoz
Sat Oct 21, 2017 9:06 pm
Forum: General discussion
Topic: Pi Chat on Telegram
Replies: 5
Views: 3809

Re: Pi Chat on Telegram

Make that 200 now, more the merrier... :)
by rtfmoz
Fri Feb 10, 2017 9:57 am
Forum: General discussion
Topic: Raspberry Pi 4 possible h.265 decoder?
Replies: 63
Views: 81669

Re: Raspberry Pi 4 possible h.265 decoder?

I hear people referring to 4K however thats not really the main concern. The Raspberry Pi is unlikely to be designed for running 4K. It is an enthusiast device not a high end video display. The driving factor for h.265 support is this will become the mainstream. Essentially everything will be encode...
by rtfmoz
Fri Feb 10, 2017 8:53 am
Forum: General discussion
Topic: Pi Chat on Telegram
Replies: 5
Views: 3809

Re: Pi Chat on Telegram

We broke the 100 user mark a couple of weeks ago so its growing well and pretty international audience at that. If you are looking for assistance on a project then feel free to pop in and ask us a question. If we can help then we will usually do so :-)
by rtfmoz
Wed Apr 06, 2016 4:55 am
Forum: General discussion
Topic: Pi Chat on Telegram
Replies: 5
Views: 3809

Re: Pi Chat on Telegram

Jednorozec wrote:It's really a shame that there aren't friendly people from all over the world here. :roll:
This is just another way of exchanging ideas :-)

The public group link is now https://telegram.me/pi_chat
by rtfmoz
Wed Apr 06, 2016 12:26 am
Forum: General discussion
Topic: Pi Chat on Telegram
Replies: 5
Views: 3809

Re: Pi Chat on Telegram

The group is slowly growing so if you are interested in all things Raspberry Pi and would like to join a group of like minded individuals feel free to come and say hello. We are a friendly bunch from all over the world it seems.

Nice to meet you!

Go to advanced search