When use wcdma module ,we should use ppp protocol to communicate with ppp server. But I can't see any file about ppp in NOKIA N9's filesystem.
So,How N9 use linux(harmattan) to dial to PPP server and then linked to internet ?
This question seems more suited to SuperUser.com - it is not related to programming. See the StackOverflow FAQ for more information on what kind of questions you can ask here.
Regardless of where you post a question, it would help all of us if you provided more context, preferably using full sentences. As it stands now, it is difficult to tell what your actual question is. Do you want to connect a computer to the internet using the phone? Do you want to use the phone itself to access the network?
It is also difficult to understand what the problem is. You should at least tell us what you have tried and where that failed.
Unless you pay more attention to your question, you will not get any meaningful answers. You should probably have a look here for a guide on asking questions.
You should keep in mind that hardware-related questions can usually be answered only by people that have access to that particular device. With the amount of information you are providing this question boils down to "How do I connect to a PPP server on Nokia N9?", which is impossible to answer, unless one has access to that particular phone model.
By providing more context, such as describing how the firmware in that phone is setup, you allow people that have more general experience on Linux and embedded devices to help you.
Since I do not have that particular device, I will take a shot in the dark and offer a few alternatives, in order of decreasing probability:
You may need to install additional packages. I believe that MeeGo uses Debian-style packages and the PPP-related packages may not be installed by default. You should have a look at your software repositories.
The PPP support does not have to be a module - it can be included in the main kernel binary. pppd could also be replaced by a custom binary, although that is not very common, even on embedded devices.
Are you absolutely certain that your current software configuration does not support PPP? How are you searching in the filesystem for PPP-related files? What are you expecting to find? Does using the phone UI to connect work?
There is a very slim chance that the default firmware does not support PPP at all - in that case you may have to install custom packages or even replace the firmware itself with a custom version.
Related
I am trying to write an snmp agent for RFC 4836, Definitions of Managed Objects for IEEE 802.3 Medium Attachment Units (MAUs), to run on an embedded Linux system (Linux server 2.6.35.12+). I've used mib2c to set up my frameworks, but am stalled on finding where to get the data to fill in. I am not sure where I should be looking: if the MAU is part of the eth device or a separate interface, if I should be looking somewhere in the /sys or /proc fs, or if I need to access the device registers directly (or both?).
I know there is a lot of different data needed, and am not asking for a roadmap with everything, but at this point I am hung up and not sure where I should be concentrating my efforts - driver code?
Sorry if this seems a dumb question, but I have been looking online and in StackOverflow without finding what I need.
It turned out the information I needed is available from mii-tool. Despite what you may see on the web, this is not obsolete (it may have been a few years ago but it seems to have been updates). Or, you can access the device registers directly using ioctl calls to SIOCGMIIREG, to avoid having to parse command output.
I need to develope a NFC chipset evaluation tool. i need to connect the NFC board (that includes the NFC chip) to PC (running in Windows). then i need to get all the data of the chip to my PC using a software tool. this is the first time i am trying to do it. i need some advises regarding the first steps. i suppose, i would use a TCP-IP protocol to connect with the chipset. but how exactly it would work? for example, there is a USB-tester... http://www.vconsole.com/client/?page=page&id=13. my tool will be similar to this.
i also need to validate in the low level entry, for the framework.
i need to have a process description for the development of the tool. what are the steps?
thanks for your advices.
You cannot use TCP/IP over a USB/I2C connection. Most test boards come with software that you can use to connect to the board. What you are asking is a very broad question. If you are trying to write your own question, or hook it up to Excel to run tests with, you are progressing down a very time consuming path. People here are willing to help you figure out a question you are stuck on, but not to do all the hard work for you.
Like I said, you are starting on a BIG project, and will need to research A LOT. Then I'd recommend asking specific questions rather than very general questions.
As far as where to start, I'd start by writing down everything you want to know, and then start figuring out how to get each individual piece.
I want to code a simpe vpn as a part of my course work. I am looking for ways to start. Will be helpful if you guys could help me with resources
As a basic starting point, you need to be able to write a client/server setup in your language of choice that will transport over IP. Your VPN must also be able to present the operating system with a network interface. If you are using Linux, I suggest the tun/tap system interface. For reference, you could look at the code in qemu which does make use of those OS calls. For the encryption purposes, the OpenSSL library should be able to provide you with all the calls necessary.
I'm not sure what the ultimate requirements of your coursework are. You can build anything from a basic shared-symmetric key setup that can be quickly hacked up to the bottomless pit of trying to build a production worthy VPN system. You should mention your requirements.
Is it possible to create GUI firewall that works as Windows and Mac counterparts? Per program basis. Popup notification window when specific program want to send\recv data from network.
If no, than why? What Linux kernel lacks to allow existence of such programs?
If yes, than why there aren't such program?
P.S. This is programming question, not user one.
Yes it's possible. You will need to setup firewall rules to route traffic through an userspace daemon, it'll involve quite a bit of work.
N/A
Because they're pretty pointless - if the user understands which programs he should block from net access he could just as well use one of multiple existing friendly netfilter/iptables frontends to configure this.
It is possible, there are no restrictions and at least one such application exists.
I would like to clarify a couple of points though.
If I understood this article correct, the firewalls mentioned here so far and iptables this question is tagged under are packet filters and accept and drop packets depending more on IP addresses and ports they come from/sent to.
What you describe looks more like mandatory access control to me. There are several utilities for that purpose in Linux - selinux, apparmor, tomoyo.
If I had to implement a graphical utility you describe, I would pick, for example, AppArmor, which supports whitelists, and, to some extent, dynamic profiling, and tried to make a GUI for it.
OpenSUSE's YaST features graphical interface for apparmor setup and 'learning' , but it is specific to the distribution.
So Linux users and administrators have several ways to control network (and files) access on per-application basis.
Why the graphical frontends for MAC are so few is another question. Probably it's because Linux desktop users tend to trust software they install from repositories and have less reasons to control them this way (if an application is freely distributed, it has less reasons to call home and packages are normally reviewed before they get to repositories) while administrators and power users are fine with command line.
As desktop Linux gets more popular and people install more software from AUR or PPA or even from gnome-look.org where packages and scripts are not reviewed that accurately (if at all) a demand for such type of software (user-friendly, simple to configure MAC) might grow.
To answer your 3rd point.
There is such a program which provides zenity popups, it is called Leopard Flower:
http://sourceforge.net/projects/leopardflower
Yes. Everything is possible
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There are real antiviruses for linux, so there could be firewalls with GUI also. But as a linux user I can say that such firewall is not needed.
I reached that Question as i am currently trying to migrate from a Mac to Linux. There are a lot of applications I run on my Mac and on my Linux PC. Some of them I trust fully. But others I am not fully trusting. If they are installed from a source that checks them or not, do i have to trust them because someone else did? No, I am old enough to choose myself.
In times where privacy is getting more and more complicate to achieve, and Distributions exist that show that we should not trust everyone, I like to be in control of what my applications do. This control might not end at the connection to the network/Internet but it is what this question (and mine is about.
I have used LittleSnitch for MacOSX in the past years and I was surprised how often an application likes to access the internet without me even noticing. To check for updates, to call home, ...
Now where i would like to switch to Linux, I tried to find the same thing as I want to be in control of what leaves my PC.
During my research I found a lot of questions about that topic. This one, in my opinion, best describes what it is about. The question for me is the same. I want to know when an application tries to send or receive information over the network/internet.
Solutions like SELinux and AppAmor might be able to allow or deny such connections. Configuring them means a lot of manual configuration and does not inform when a new application tries to connect somewhere. You have to know which application you want to deny access to the network.
The existence of Douane (How to control internet access for each program? and DouaneApp.com) show that there is a need for an easy solution. There is even a Distribution which seems to have such a feature included. But i am not sure what Subgraph OS (subgraph.com) is using, but they state something like this on there website. It reads exactly like the initial question: "The Subgraph OS application firewall allows a user to control which applications can initiate outgoing connections. When an unknown application attempts to make an outgoing connection, the user will be prompted to allow or deny the connection on a temporary or permanent basis. This helps prevent malicious applications from phoning home."
As it seems to me, there are only two options at the moment. One is to Compiling Douane manually mysqlf or two, switch distribution to Subgraph OS. As one of the answers state, everything is possible - So i am surprised there is no other solution. Or is there?
We have a registered PC based application that needs a Dongle (hardware that gets plugged on the printer port) to start and execute. The vendor who provided us this application and Dongle, does not make or work with these dongles any more, since they are very old technology, and would not help us in this aspect.
So my question is --> is it possible to read the security code from this Dongle and store it in a file or something on the PC. We also do not have the source code of the application. Can we change the call in the application to read the security key from this file instead of trying to read it from the Dongle attached to the printer/parallel port.
Sorry for the vague question but we are very desperate to get help on this problem as out application has 16-bit code and it would not be supported by Windows 7 which is 64 bit. Thanks!!
The LPT security devices don't just contain information but usually include a processor and perform certain operations. Dongle emulators were developed when dongles where more widespread, but as they were based on reverse-engineering, they didn't work exactly right.
To answer your question, no, what you need is not possible. You need to start thinking about migration to another application. A temporary solution would be to have a copy of older OS running in virtual machine and to have your application run in this virtual machine. Such solution will work for another 5-10 years for sure, and I think it's enough for migration.