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16  General Category / Application ideas and development Q/A / Re: 0-conf VPN on a plug on: December 09, 2010, 09:48:41 AM
0-conf VPN is a contradiction in terms. If it is really 0-conf then you don't know what you are connecting to, so you will get V(not-so-P)N. If there is a reasonable protection then it can not be 0-conf, you will at least need some kind of authentication. I think before you choose software you should have more specific requirements.

What kind of "porting on ARM" are you asking about? For example, P2PVPN clearly says it is written in Java. For the rest, are you asking whether it would run on ARM at all or are you looking for binary packages for ARM? In the latter case what OS/Distribution/version? To get a specific answer you would have to ask a specific question.
17  General Category / General Discussion / Re: 4-bay HDD enclosures on: December 09, 2010, 02:48:34 AM
I haven't tried it myself, but some other people apparently did:
18  Hardware and U-Boot firmware / Hardware / Re: SheevaPlug memory lifetime in production environment on: December 09, 2010, 02:08:04 AM
19  Hardware and U-Boot firmware / Hardware / Re: Debian Squeeze and Sheevaplug LED control on: December 02, 2010, 08:47:31 AM
these commands work fine:
john@shiva:~$ sudo echo "testing" > test.txt
No offence, but you don't seem to understand what exactly you have just done. You have written the output of 'sudo echo "testing"' to a file 'test.txt'. Now try this:
ls -l test.txt
Who is the owner of the file?
You probably have already got the idea why you get "access denied" with LEDs?
20  Hardware and U-Boot firmware / Hardware / Re: SheevaPlug memory lifetime in production environment on: November 29, 2010, 12:10:35 PM
The "best practice" is to make the root filesystem read-only. If the OS insists on writing something it should do that somewhere else. If there are no other storage devices available then use tmpfs.
21  General Category / General Discussion / Re: Spam and new Users on: November 23, 2010, 04:47:47 AM
I have noticed that since recently if I use "Report to moderator" link to report spam then I will often get "You are not allowed to post since your last post was less than 600 seconds ago" or something like that. I'm not trying to post anything at all, I'm just trying to report spam.

Dear moderators, if you are not interested in our reporting spam, can you at least clearly say that, so that we will not bother?
22  Linux Stuff / Linux distributions / Re: help me please.. on: November 17, 2010, 05:10:07 AM
Is there a method to have a bash after uboot without login?
Yes, that is what you have already tried (appending init=/bin/bash to bootargs).

How exactly did you try it? I have noticed that if you change bootargs via the u-boot prompt and continue booting, the kernel will not get the correct boot parameters (and thus won't find the root fs). I don't know if this is a bug in u-boot or some obscure feature. You have to actually save the modified value of bootargs (using saveenv) and reset the plug.
23  General Category / General Discussion / Re: Sheevaplug as proxy server on: November 15, 2010, 09:03:16 AM
Only thing I haven't found out is how to make tinyproxy obligatory for all systems when accessing internet or how I can get tiny to automatically be setup inside browsers, probably some setting in browsers itself?
To make it obligatory you can set it up as a transparent proxy. Then the browsers will not even need to know that they are talking to a proxy. Although I don't know if tinyproxy is capable of that.
An alternative would be to block direct traffic to TCP ports 80 and 443 outside of you local network, so that the browsers would not have web connectivity other than via the proxy.

As for automatic configuration of the browsers, you might want to read about WPAD.
24  Hardware and U-Boot firmware / Hardware / Re: Guruplug: Datasheet of the Ethernet PHY? on: November 08, 2010, 03:34:04 AM
Do you really need the datasheet? Is the following not good enough?
25  General Category / General Discussion / Re: Spam and new Users on: November 03, 2010, 02:07:28 AM
Well, do you mean that the new users have no right to reply or post a new topic at the first day? 
No, they don't, if they have unrelated links in their signature, like you do, to boost the Google rating of their web sites.
26  Hardware and U-Boot firmware / U-Boot stuff / Re: plug with only green led on and no serial connection...I need a resurrection on: October 21, 2010, 02:40:43 AM
TTY communication doesn't constitute a peripheral.
Actually, it does. One has to configure the corresponding pins to work as a serial port, which may be highly inappropriate if those pins happen to be connected to something totally different.

If the manufacturer wanted to include a ROM-loaded command interface, they could.
And apparently they did. But that feature does not get activated automatically for the reason I've just mentioned, so one has to actively request the BootROM serial interface, which effectively means providing the BootROM with the information about the connected peripherals. This is described in detail in the SoC chip documentation.
27  General Category / General Discussion / Re: Forward DCHP requests from Wifi on: October 09, 2010, 09:57:24 AM
There are two standard solutions to this problem:

1. Bridge the wi-fi interface and the wired one on the plug.
2. Run a DHCP relay on the plug.

You didn't say much about your current network configuration, so it's hard to tell which way would be more appropriate in your situation.
28  Linux Stuff / General Linux questions / Re: MAC address the same for each plug? on: October 08, 2010, 01:14:35 AM
Some versions of U-Boot require the "ping" hack for the value of "ethaddr" to be actually applied. Don't know if this applies to the version mentioned here.

In my case (GuruPlug Server Plus), if the MAC address was not set the eth* interface would still show up in the OS with the MAC address of all zeroes.
29  Linux Stuff / General Linux questions / Re: MAC address the same for each plug? on: October 07, 2010, 10:46:47 AM
what MAC is used if no one is set (00:...)?
I can't speak for other sorts of plug computers, but on GuruPlug you will end up with 00:00:00:00:00:00.

Looking at other systems they normally use their native MAC if nothing is defined/overruled?!
What is "native" MAC?
If by other systems you mean the "big" desktops/servers then the explanation is quite simple.
The "big" network adapters usually have a small non-volatile memory chip where the MAC address is stored. The Ethernet controller chip reads it upon powering up without software intervention. In the embedded world it may be too much luxury to have an extra chip just for that. Some Ethernet controller chips have built-in memory for MAC that can be preprogrammed at the factory. In either case the production costs increase.
30  Linux Stuff / Linux distributions / Re: Seeva -> Sheeva ESATA: No ethernet on: October 05, 2010, 01:02:24 AM
I tried to reload the mv643xx_eth on the esata Sheeva and got a kernel panic.
If loading a module causes kernel panic this often means that the module was compiled for different kernel version and/or configuration.
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