eBlocker Open Source Forum - Recent Topics

Threema App not working any more with eBlocker enabled

mr.bien — Thu, 03 Sep 2026 17:29:46 +0000

Hi,

I have been experiencing a problem with the Threema app (iPhone, iOS) for some time now. As a Trusted App, it worked perfectly fine for years. Since one of the latest updates, however, Threema no longer works properly.

When I try to send a message, a “?” now appears in Threema’s message status. If I deactivate eBlocker and send a message, then everything works well It then also starts sending the previously "?"-marked ones. Similarly, messages reception does not work. I receive a notification from iOS when a message is sent to me, but then I do not see any messages within Threema unless I deactivate eBlocker.

Of course I tried to snoop traffic using the manual recording of connections within eBlocker, but there is nothing recorded. I mean the window which shows the connections stays empty.

Long story short: I have no clue what happened to Threema and I cannot trace the issue using the provided functions within eBlocker.

Is there any way to debug that? Does anyone else has the same problems with that app?

Thanks in advance!

eBlocker x86 Directions Inaccuracy

e94904 — Wed, 26 Aug 2026 05:36:00 +0000

Hi there

I am not sure where to mention this but I had a bit of confusion when I was getting started. On the main eBlockerOS Download page, it mentions that OS3 is no longer being supported and getting updates. But on the page "Boot eBlockerOS directly on PC", it points to a download for OS version 3 when "Boot-Image Download" is selected. Only the x86 OS image can be found on the forum when ideally it should be on the main website. Because of this, it is slightly unclear if OS3 for x86 is still being supported or not.

Additionally, it mentions a minimum disk size of 8GB but the disk image is not quite 8GB. And since most 8GB USB's/SSD are slightly smaller than 8GB from the factory, it won't fit on a 8GB SSD. Either the disk image should be shrunken down to fit on an 8GB SSD or the directions should be updated to require a 9GB USB/SSD. Using either disk image and trying to flash on an 8GB device will fail when using Etcher.

Other than those two things, I was able to get it working so far and just testing things out.

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How to add a PCIe HATs with 2.5 gb port to my eblocker?

Moritz — Mon, 24 Aug 2026 17:36:22 +0000

Hello, due to a faster network I would like to add to my eblocker a 2.5 gb port via an M.2 adapter card (PCIe TO M.2 USB HAT+) - partly out of curiosity. Does anybody as dev experience with that?

I know that the eblocker linux is pretty closed and did not succed so far, to add the PCIe adapter card properly - I still have an activation challenge. I am using a pi5. Hint: I do have access to the underlyings (Unless you are a developer with root access to eBlockerOS with deeper knowledge of handling device drivers and IP-tables, this is not feasible.). Any hint, also to the correct forum is welcomed.

eBlocker Download Image and converter scripts for x86 UEFI Systems

e94904 — Mon, 24 Aug 2026 05:47:26 +0000

I figured since eBlocker doesn't provide a UEFI compatible image, I figured I would take it upon myself to make a script that can make one. I have a link to some scripts that I made that takes in the x86 image and makes it UEFI compatible. This is because most of the newer thin client PC's on the market are UEFI only and don't have a CSM mode. Not to mention that any chrome boxes converted to have a UEFI bios also don't support legacy CSM boot either.

www(dot)github(dot)com(slash)e94904(slash)eBlocker-Legacy-Boot-to-UEFI-Converter

I also have some prebuilt releases that are already UEFI compatible and all that needs to be done is to use Etcher to flash it to a SSD or use the "Disks" tool from a Linux Mint Live USB and then flash the image to the internal SSD as well.

www(dot)github(dot)com(slash)e94904(slash)eBlocker-Legacy-Boot-to-UEFI-Converter(slash)releases

There are two images since the stock image won't fit on an 8GB USB/SSD so I made a second one that shrinks the partitions a little bit and it should fit on an actual 8GB SSD.

I have tested my standard images on a HP Chromebox G2 and it seems to be working fine and I was able to get all the images working in a VM as well.

Feel free to give it a shot and hope this helps somebody else.

Include QEMU Guest Agent in x86 version

Furbo — Fri, 07 Aug 2026 08:19:47 +0000

Hello,

I’m trying eBlocker in Proxmox and I’m missing the ability to monitor resources and control startup, shutdown etc. provided by QEMU Guest Agent.

I believe it would be a simple matter of including the Linux package in an x86 version update. Very grateful if you’d consider this.

Howto: eBlocker VM on Intel Mac with UTM

Boris — Mon, 06 Jul 2026 10:13:34 +0000

Maybe someone has an older Intel Mac and wants to test eBlocker on it. I have noticed that UTM seems to use less CPU than VirtualBox in this environment.

There are some special settings that must be set in UTM.

You can download UTM from https://mac.getutm.app/.

Download an eBlocker image and unpack it:

eBlocker 4: https://eblocker.org/official-downloads/eBlockerVM-4.0.2-amd64-beta.img.xz
or eBlocker 3: https://eblocker.org/official-downloads/eBlocker-3.0.3-amd64.img.gz

Start UTM on Intel macOS and create a new VM. Select Virtualize.

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As operating system select Linux.

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Set the number of cores to 2 or 4.

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Keep the checkbox Use Apple Virtualization disabled.

Select Import existing drive.

Browse to the downloaded and extracted eBlocker image file.

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Do not add a shared directory on the next screen.

On the summary page, rename the VM to eBlocker and save the settings.

Important: do not start the VM yet. Open the settings of the new VM first.

Select QEMU and disable UEFI Boot.

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Select Devices/Display and set the emulated display card to isa-vga.

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Select Devices/Network and set the network mode to Bridged (Advanced).

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Start the VM and open the settings URL in your browser:

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Happy eBlocking!

Internet not reachable when eBlocker is enabled

eBloeckerchen — Wed, 24 Jun 2026 06:11:54 +0000

Hello Team, i have a problem that i can not solve by myself.

My Macbook is the only device that cannot access the Internet and E-Mail for about 3 Days. No change of Software or so. iPad and iPhone works good also on VPN. What can i do?

Here the Infos of my System:

Raspberry Pi 4 Modell B 8GB

eBlocker OS 3.2.3

FilterList 2026-06-23-06-37-08

Networkmode Automatic

IP 10.27.1.5

Mask 255.255.255.0

Gateway 10.27.1.1

Router runs DHCP-Server

IPv6 disabled on Router and eBlocker

DNS Firewall is on

External DNS-Server 1.1.1.1 and 9.9.9.9

Dont know what means „Client network settings“

HTTPS Integration is enabled

Safari 26.5 on MAC OS 14.8.7

No aditional AdBlockers in use

Auto-Trust is enabled

VPN is enabled in eBlocker but not used in this Case

Automatic Updates are enabled

Function Test shows Red Lights

eBlocker.org is not on the HTTPS Trusted Website list

Doctor shows all green lights

Please can you help me?

Edit: When I switch off the eBlocker via Dashboard can i use the Internet but with all the Banners an so.