1. Berlin Proprietary Usb Modem Driver Download Windows 10
2. Berlin Proprietary Usb Modem Driver Download Software

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Firmware refers to embedded software which controls electronic devices. Well-defined boundaries between firmware and software do not exist, as both terms cover some of the same code. Typically, the term firmware deals with low-level operations in a device, without which the device would be completely non-functional (read more on Wikipedia).

Contents

1. Devices/Drivers Firmware

Devices/Drivers Firmware

Many devices require firmware to operate. Historically, firmware would be built into the device's ROM or Flash memory, but more and more often, a firmware image has to be loaded into the device RAM by a device driver during device initialisation.

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A few firmware images are Free Software and Open Source but almost all of them are non-free, which means that you need to add the non-free and contrib components to your APT sources.

Firmware during the installation

In some cases the installer detects the need for non-free firmware and prompts the user to make the firmware available to the installer to complete the installation. This can happen, for example, with wireless network cards which often require non-free firmware to function (see ipw2200 for an example).

Installation images with firmware

An easy method is to use an installer image that includes all non-free firmware packages directly. See https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/

Firmware on removable media

You can also download the firmware archive for your platform and unpack it into a directory named firmware in the root of a removable storage device (USB/CD drive). You can find firmware downloads for your Debian version at https://cdimage.debian.org/cdimage/unofficial/non-free/firmware/. When the installer starts, it will automatically find the firmware files in the directory on the removable storage and, if needed, install the required firmware.

In some cases, firmware supplied on removable media may not be detected automatically (e.g. 740503). In these situations, drop to the console (Ctrl+alt+F2) and manually mount(8) your removable storage on a temporary directory (e.g. /media).

• NetbootFirmware - Firmware for Netbooting.

Once the network is configured, Debian-Installer can fetch firmware from Debian repositories.

Location of firmware files

Debian 8 'Jessie' and newer

udev used in Debian Jessie and later, only checks one directory for firmware files: /lib/firmware. See 729252 for details.

Debian 7 'Wheezy', Debian 6.0 'Squeeze'

Firmware is sourced from the following places (see udev's /lib/udev/hotplug.functions and /lib/udev/firmware.agent)

1. /lib/firmware/$(uname -r) - Firmware provided by a package, specific for a kernel.

2. /lib/firmware/ - Firmware provided by a package, valid for all kernels.

3. /usr/local/lib/firmware - Location for manually installed firmware.

4. /usr/lib/hotplug/firmware - Firmware provided by a package, valid for all kernels

List of firmware in Linux kernel

To find which package provides a given firmware file, you can use this search page:
https://www.debian.org/distrib/packages#search_contents

Firmware/List lists all firmware distributed along Debian Linux kernel images.

Computer Firmware

Updating firmware

Firmware can be updated using various methods.

Open firmware

There are a number of projects creating various kinds of open firmware, including for booting, WiFi and audio.

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In this article I will outline the setup of my (not so) new firewall at home.I explain how I decided which hardware to get and which software to choose, and I cover the entire process of assembling the machine and installing the operating system.Hopefully this will be helpful to poeple in similar situations.

While the ability of firewalls to protect against all the evils of the internetsis certainly exaggerated, there are some important use cases for them: you want to prevent certain inboundtraffic and manipulate certain outbound traffic e.g. route it through a VPN.

For a long time I used my home server (whose main purpose is network attached storage) to also dosome basic routing and VPN, but this had a couple of important drawbacks:

• Just one NIC on the server meant traffic to/from the internet wasn’t physicallyrequired to go through the server.
• Less reliable due to more complex setup → longer downtimes during upgrades, higher chance of failure dueto hard drives.
• I wouldn’t give someone else the root password to my data storage, but I did want my flat-mates to beable to reset and configure basic network components that they depend on (Router/Port-forwarding and WiFi).
• I wanted to isolate the ISP-provided router more strongly from the LAN as they have a history of securityvulnerabilities.

The different off-the-shelf routers I had used over the years had also worked only so-so (even those that were customisable) so I decided I needed a proper router.Since WiFi access was already out-sourced to dedicated devices I really only needed a filtering and routing device.

Board & CPU

The central requirements for the device were:

• low energy consumption
• enough CPU power to route traffic at Gbit-speed, run Tor and OpenVPN (we don’t have Gbit/s internet in Berlin, yet, but I still have hopes for the future)
• hardware crypto support to unburden the CPU for crypto tasks
• two NICs, one for the LAN and one for the WAN

I briefly thought about getting an ARM-based embedded board, but most reviews suggested that the performancewouldn’t be enough to satisfy my requirements and also the *BSD support was mixed at best and I didn’t wantto rule out running OpenBSD or FreeBSD.

Back to x86-land: I had previously used PC Engines ALIX boards as routers andwas really happy with them at the time.Their new APU boards promised better performance, but thanks to the valuable feedback and some benchmarkingdone by the community over at BSDForen.de, I came to the conclusion that they wouldn’tbe able to push more than 200Mbit/s through an OpenVPN tunnel.

In the end I decided on the Gigabyte J3455N-D3H displayed at the top.It sports a rather atypical Intel CPU(Celeron J3455) with

• four physical cores @ 1.5Ghz
• AESNI support
• 10W TDP

Having four actual cores (instead of 2 cores + hyper threading) is pretty cool now that many security-mindedoperating systems have started deactivating hyper threading to mitigate CPU bugs[OpenBSD][HardenedBSD].And the power consumption is also quite low.

I would have liked for the two NICs on the mainboard to be from Intel, but I couldn’t find a mainboard at the time that offered this (other than super-expensive SuperMicro boards).At least the driver support on modern Realteks is quite good.

Storage & Memory

The board has two memory slots and supports a maximum of 4GiB each.I decided 4GiB are enough for now and gave it one module to allow for future extensions (I know that’ssuboptimal for speed).

Storage-wise I originally planned on putting a left-over SATA-SSD into the case, but in the end, I decideda tiny USB3-Stick would provide sufficient performance and be much easier to replace/debug/…

Case & Power

Since I installed a real 19” wrack in my new flat, of course the case for the firewall would have to fitnicely into that.I had a surprisingly difficult time finding a good case, because I wanted one were the board’s portswould be front-facing.That seems to be quite a rare requirement, although I really don’t understand why.Obviously having the network ports, serial ports and USB-Ports to the front makes changing the setup anddebugging so much easier ¯_(ツ)_/¯

I also couldn’t find a good power supply for such a low-power device, but I still had a 60W PicoPSU supply lying around.

Even though it came with an overpowered PSU and a proprietary IO-Shield (more on that below), I decided on the SuperMicro SC505-203B.It really does look quite good, I have to say!

Assembly

Mounting the mainboard in the case is pretty straight-forward.The biggest issue was the aforementioned proprietary I/O-Shield that came with the SuperMicro case (and wasdesigned only for SuperMicro-boards).It was possible to remove it, however, the resulting open space did not conform to ATX specso it wasn’t possible to just fit the Gigabyte board’s shield into it.

I quickly took the measurements and starting cutting away on the shield to make it fit.This worked ok-ish in the end, but is more dangerous than it looks (be smarter than me, wear gloves ☝ ).In retrospect I also recommend that you do not remove the bottom fold on the shield, only left, right and top;that will make it hold a lot better in the case opening.

The board can be fit into the case using standard screws in the designated places.As mentioned above, I removed the original (actively cooled) power supply unit and used the 60W PicoPSU that I had lying around from before.Since it doesn’t have the 4-pin CPU cable I had improvise. There are adaptors for this, but if you have a left-over power supply, you can also tape together something.I also put the transformer into the case (duck-tape, yeah!) so that one can plug in the power cord from the back of the case as usual.

Choice

There are many operating systems I could have chosen since I decided to use an x86 platform.My criteria were:

• free software (obviously)
• intuitive web user interface to do at least the basic things
• possibility to login via SSH if things don’t go as planned
• OpenVPN client

I feel better with operating systems based on FreeBSD or OpenBSD, mainly because I have more experience with them than with GNU/Linux distributions nowadays.In previous flats I had also used OpenWRT and dd-wrt based routers, but whenever I needed to tweak something beyond what the web interface offered, it got really painful.In general the whole IPtables based stack on Linux seems overly complicated, but maybe that’s just me.

In any case, there are no OpenBSD-based router operating systems with web interfaces (that I am aware of) so I had the choice between

1. pfsense (FreeBSD-based)
2. OPNSense, fork of pfsense, based on HardenedBSD / FreeBSD

There seem to be historic tensions between the people involved in both operating systems and I couldn’t find out if there were actual distinctions in the goals of the projects.In the end, I asked other people for recommendations and found the interface and feature list of OPNSense more convincing.Also, being based on HardenedBSD sounds good (although I am not sure if HardenedBSD-specifica will really ever play out on the router).

Initially I had some issues with the install and OPNSense people were super-friendly and responded immediately. Also the interface was a lot better than I expected so I am quite sure I made the right decision.

Install

Setup is very easy:

1. Go to https://opnsense.org/download/, select amd64 and nano and download the image.
2. Unzip the image (easy to forget this).
3. Write the image to the USB-stick with dd (as always with dd: be careful about the target device!)
4. Optionally plug a serial cable into the top serial port (the mainboard has two) and connect your Laptop/Desktop with baud rate 115200
5. Plug the USB-stick into the firewall and boot it up.

There will be some beeping when you start the firewall. Some of this is due to the mainboard complaining that no keyboard is attached (can be ignored) and also OPNSense will play a melody when it is booted.If you are attached to the serial console you can select which interface will be WAN and which will be LAN (and their IP addresses).Otherwise you might need to plug around the LAN cables a bit to find out which is configured as which.

When I built this last year there were some more issues, but all of them have been resolved by the OPNSense people so it really is “plug’n’play”; I verified by doing a re-install!

Post-install

Go to the configured IP-address (192.168.1.1 by default) and login (root: opnsense by default).If the web-interface comes up everything has worked fine and you can disconnect serial console and do the rest via the web-interface.

After login, I would to the following:

• change the password
• activate SSH on the LAN interface
• configure internet access and DHCP
• setup any of the other services you want

For me setting up the internet meant doing a “double-NAT” with the ISP-provided router, because I need its modem and nowadays it seems impossible to get a stand-alone VDSL modem. If you do something similar just configure internet as being over DHCP.

If you want hardware accelerated SSL (also OpenVPN), go to System → Firmware → Setting and change the firmware flavour to OpenSSL (instead of LibreSSL). After that check for updates and upgrade.In the OpenVPN profile, under Hardware Crypto, you can now select Intel RDRAND engine - RAND.

Take your time to look through the interface! I found some pretty cool things like automatic backup of the configuration to a nextcloud server! The entire config of the firewall rests in one file so it’s really easy to setup a clean system from scratch.

Berlin Proprietary Usb Modem Driver Download Software

All-in-all I am very happy with the system. Even though my setup is non-trivial, with only selected outgoing traffic going through the VPN (based on rules), I never had to get my hands dirty on the command line – everything can be done through the Web-UI.