Re: [Emc-users] Printrboard and LinuxCNC

2014-03-02 Thread Steve Blackmore
On Sat, 01 Mar 2014 21:19:06 -0500, you wrote: I've had a number of problems when plugging into industrial devices that have a USB interface. The lack of isolation is oftentimes a problem. Othertimes my laptop will confuse the industrial device with another common USB device like a stick

Re: [Emc-users] Little OT, but...

2014-03-02 Thread W. Martinjak
On 2014-03-02 00:40, Sven Wesley wrote: One can also use http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Emcrsh or http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Halrmt for remote controlling. It's an easy thing to use telnet socket in and Android app. I guess you havn't tried out my example. -- In

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Mark Wendt
On Sat, Mar 1, 2014 at 3:04 PM, Michael Haberler mai...@mah.priv.at wrote: Am 01.03.2014 um 18:19 schrieb W. Martinjak mats...@play-pla.net: It seems the thrill of joy has gone ;) not for me - in fact I think it as reassuring to see we to converge on the same concept: Web UI

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Mark Wendt
On Sat, Mar 1, 2014 at 6:40 PM, Sven Wesley svenne.d...@gmail.com wrote: 2014-03-01 21:04 GMT+01:00 Michael Haberler mai...@mah.priv.at: Am 01.03.2014 um 18:19 schrieb W. Martinjak mats...@play-pla.net: It seems the thrill of joy has gone ;) not for me - in fact I think it as

Re: [Emc-users] Printrboard and LinuxCNC

2014-03-02 Thread Mark Wendt
On Sat, Mar 1, 2014 at 6:41 PM, Steve Blackmore st...@pilotltd.net wrote: On Sat, 01 Mar 2014 18:15:29 +0100, you wrote: When I've learned something about hardware interfaces and reliability in the past two or three years then it is to stay as far away from USB as possible whenever

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Bertho Stultiens
On 03/02/2014 01:14 PM, Mark Wendt wrote: One can also use http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Emcrsh or http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Halrmt for remote controlling. It's an easy thing to use telnet socket in and Android app. Telnet is extremely unsecure, with no encryption.

Re: [Emc-users] Little OT, but...

2014-03-02 Thread W. Martinjak
On 2014-03-02 13:11, Mark Wendt wrote: I take it this WebUI implementation would require a web server running on the local linux machine with all the included overhead and security concerns that web servers have? Or is there some small, really safe, really secure subset of apache that

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Mark Wendt
On Sun, Mar 2, 2014 at 7:31 AM, Bertho Stultiens ber...@vagrearg.orgwrote: On 03/02/2014 01:14 PM, Mark Wendt wrote: One can also use http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Emcrsh or http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Halrmt for remote controlling. It's an easy thing to use telnet

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Michael Haberler
Am 02.03.2014 um 13:11 schrieb Mark Wendt wendt.m...@gmail.com: On Sat, Mar 1, 2014 at 3:04 PM, Michael Haberler mai...@mah.priv.at wrote: Am 01.03.2014 um 18:19 schrieb W. Martinjak mats...@play-pla.net: It seems the thrill of joy has gone ;) not for me - in fact I think it as

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Mark Wendt
On Sun, Mar 2, 2014 at 7:37 AM, W. Martinjak mats...@play-pla.net wrote: On 2014-03-02 13:11, Mark Wendt wrote: I take it this WebUI implementation would require a web server running on the local linux machine with all the included overhead and security concerns that web servers have? Or

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Mark Wendt
On Sun, Mar 2, 2014 at 8:00 AM, Michael Haberler mai...@mah.priv.at wrote: I take it this WebUI implementation would require a web server running on the local linux machine with all the included overhead and security concerns that web servers have? Or is there some small, really

Re: [Emc-users] Printrboard and LinuxCNC

2014-03-02 Thread Philipp Burch
Hi Steve, hi everyone! On 03/02/2014 12:41 AM, Steve Blackmore wrote: On Sat, 01 Mar 2014 18:15:29 +0100, you wrote: When I've learned something about hardware interfaces and reliability in the past two or three years then it is to stay as far away from USB as possible whenever something else

Re: [Emc-users] Little OT, but...

2014-03-02 Thread W. Martinjak
On 2014-03-01 21:04, Michael Haberler wrote: not for me - in fact I think it as reassuring to see we to converge on the same concept: Web UI interaction will happen over Websockets, and with JSON objects mapped to internal representation at the boundary; it is the approach taken by Peter

Re: [Emc-users] Little OT, but...

2014-03-02 Thread W. Martinjak
On 2014-03-02 14:42, W. Martinjak wrote: I think it's a easy task for jeff and/or axel. (I wasn't saying anything ;) Alex, sorry for this typo. -- In der Wissenschaft siegt nie eine neue Theorie, nur ihre Gegner sterben nach und nach Max Planck

Re: [Emc-users] Printrboard and LinuxCNC

2014-03-02 Thread Dave Cole
I agree! And this is why USB has issues! :-( Dave On 3/2/2014 8:37 AM, Philipp Burch wrote: Hi Steve, hi everyone! On 03/02/2014 12:41 AM, Steve Blackmore wrote: On Sat, 01 Mar 2014 18:15:29 +0100, you wrote: When I've learned something about hardware interfaces and reliability in the

Re: [Emc-users] Printrboard and LinuxCNC

2014-03-02 Thread Dave Cole
On 3/2/2014 3:20 AM, Steve Blackmore wrote: On Sat, 01 Mar 2014 21:19:06 -0500, you wrote: I've had a number of problems when plugging into industrial devices that have a USB interface. The lack of isolation is oftentimes a problem. Othertimes my laptop will confuse the industrial device

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Dave Cole
For most purposes I can immediately for see, I would keep this LinuxCNC to remote web server / monitor network off the WWW anyway. Other than perhaps a wireless link via an AP which can use standard security protocols. These devices are so cheap now, if I want web access near my mill/machine

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Mark Wendt
On Sun, Mar 2, 2014 at 9:33 AM, Dave Cole linuxcncro...@gmail.com wrote: For most purposes I can immediately for see, I would keep this LinuxCNC to remote web server / monitor network off the WWW anyway. Other than perhaps a wireless link via an AP which can use standard security protocols.

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Michael Haberler
In my other recent reply I mentioned my security concerns. These small, light weight web servers just don't seem to have much security built into Ah, the great security debate ;) that opens a rich subject for exchange. You're opening a can of worms - with some pretty old existing worms,

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Dave Cole
On 3/2/2014 9:47 AM, Mark Wendt wrote: On Sun, Mar 2, 2014 at 9:33 AM, Dave Cole linuxcncro...@gmail.com wrote: For most purposes I can immediately for see, I would keep this LinuxCNC to remote web server / monitor network off the WWW anyway. Other than perhaps a wireless link via an AP

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Dave Cole
Michael, As for an architectural discussion: I am sorry, but I will not abandon the work towards web-based UI support based on your argument, Please don't stop!No apology necessary, or desired.. Please proceed. :-) And THANK YOU and the other developers for all of the effort !! :-) Best

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Mark Wendt
On Sun, Mar 2, 2014 at 10:42 AM, Michael Haberler mai...@mah.priv.atwrote: In my other recent reply I mentioned my security concerns. These small, light weight web servers just don't seem to have much security built into Ah, the great security debate ;) that opens a rich subject for

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Mark Wendt
On Sun, Mar 2, 2014 at 11:17 AM, Dave Cole linuxcncro...@gmail.com wrote: Dave, Depends on the network. If your ethernet is all copper, and there's no access to the world, it's probably okay. But, if you can get out, somebody can get in. If the reason for adding something like this

Re: [Emc-users] Little OT, but...

2014-03-02 Thread W. Martinjak
On 2014-03-02 14:20, Mark Wendt wrote: In my other recent reply I mentioned my security concerns. These small, light weight web servers just don't seem to have much security built into them. Yes, SSL is a good thing, but that only encrypts that single data stream, while not really securing

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Michael Haberler
Am 02.03.2014 um 14:42 schrieb W. Martinjak mats...@play-pla.net: The current implementation uses a Websockets proxy server based on libwebsockets (http://libwebsockets.org/trac/libwebsockets). That is a relatively low level bridge, but it is very fast, has a stable API, and the package

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Gene Heskett
On Sunday 02 March 2014 13:44:17 Mark Wendt did opine: On Sun, Mar 2, 2014 at 9:33 AM, Dave Cole linuxcncro...@gmail.com wrote: For most purposes I can immediately for see, I would keep this LinuxCNC to remote web server / monitor network off the WWW anyway. Other than perhaps a

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Gene Heskett
On Sunday 02 March 2014 14:01:20 Michael Haberler did opine: In my other recent reply I mentioned my security concerns. These small, light weight web servers just don't seem to have much security built into Ah, the great security debate ;) that opens a rich subject for exchange. You're

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Jon Elson
On 03/02/2014 01:10 PM, Gene Heskett wrote: And while, in the early days, I was entertained by watching its logs as the Chinese and NK folks as they hammer away at a dictionary attack, but so far no one has had the patience to get through a 20+ character pw. The most successful thing I

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Gene Heskett
On Sunday 02 March 2014 15:24:02 Jon Elson did opine: On 03/02/2014 01:10 PM, Gene Heskett wrote: And while, in the early days, I was entertained by watching its logs as the Chinese and NK folks as they hammer away at a dictionary attack, but so far no one has had the patience to get

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Sven Wesley
2014-03-02 16:42 GMT+01:00 Michael Haberler mai...@mah.priv.at: In my other recent reply I mentioned my security concerns. These small, light weight web servers just don't seem to have much security built into Ah, the great security debate ;) that opens a rich subject for exchange.

Re: [Emc-users] Little OT, but...

2014-03-02 Thread W. Martinjak
On 2014-03-02 21:30, Sven Wesley wrote: Talking telnet down as a security issue and at the same time talk *about*security and bring in web sockets, a Python web server and Node.js is at Please undeceive me. What is on a http server per se unsecure ? No matter if it is coded in python,

[Emc-users] This sparkfun opto kit, 2 channel. Question re led polarities.

2014-03-02 Thread Gene Heskett
Greetings; leds are something I'll have to plead less than a full understanding of. So, if I connect these 2 channels of this sparkfun kit such that the anode of one is connected to the cathode of the other, effectively placing them in parallel, add a current limiter in series with the common

Re: [Emc-users] This sparkfun opto kit, 2 channel. Question re led polarities.

2014-03-02 Thread Peter C. Wallace
On Sun, 2 Mar 2014, Gene Heskett wrote: Date: Sun, 2 Mar 2014 16:10:23 -0500 From: Gene Heskett ghesk...@wdtv.com Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: [Emc-users] This

Re: [Emc-users] This sparkfun opto kit, 2 channel. Question re led polarities.

2014-03-02 Thread Gene Heskett
On Sunday 02 March 2014 17:21:41 Peter C. Wallace did opine: On Sun, 2 Mar 2014, Gene Heskett wrote: Date: Sun, 2 Mar 2014 16:10:23 -0500 From: Gene Heskett ghesk...@wdtv.com Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: Enhanced Machine

Re: [Emc-users] This sparkfun opto kit, 2 channel. Question re led polarities.

2014-03-02 Thread Peter C. Wallace
On Sun, 2 Mar 2014, Gene Heskett wrote: If you have a 5V push-pull output, another way would be to connect this output to Cathode1 and Anode2 and connect Anode1 to 5V through a resistor and Cathode2 to ground through another resistor. Thanks Peter, that will solve the single ended signal

Re: [Emc-users] This sparkfun opto kit, 2 channel. Question re led polarities.

2014-03-02 Thread Gene Heskett
On Sunday 02 March 2014 18:12:42 Peter C. Wallace did opine: On Sun, 2 Mar 2014, Gene Heskett wrote: If you have a 5V push-pull output, another way would be to connect this output to Cathode1 and Anode2 and connect Anode1 to 5V through a resistor and Cathode2 to ground through another

Re: [Emc-users] This sparkfun opto kit, 2 channel. Question re led polarities.

2014-03-02 Thread John Kasunich
On Sunday 02 March 2014 18:12:42 Peter C. Wallace did opine: On Sun, 2 Mar 2014, Gene Heskett wrote: If you have a 5V push-pull output, another way would be to connect this output to Cathode1 and Anode2 and connect Anode1 to 5V through a resistor and Cathode2 to ground through

Re: [Emc-users] This sparkfun opto kit, 2 channel. Question re led polarities.

2014-03-02 Thread Peter C. Wallace
On Sun, 2 Mar 2014, John Kasunich wrote: Date: Sun, 02 Mar 2014 19:39:35 -0500 From: John Kasunich jmkasun...@fastmail.fm Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] This sparkfun opto kit,

Re: [Emc-users] This sparkfun opto kit, 2 channel. Question re led polarities.

2014-03-02 Thread Gene Heskett
On Sunday 02 March 2014 20:04:14 John Kasunich did opine: On Sunday 02 March 2014 18:12:42 Peter C. Wallace did opine: On Sun, 2 Mar 2014, Gene Heskett wrote: If you have a 5V push-pull output, another way would be to connect this output to Cathode1 and Anode2 and connect Anode1 to

Re: [Emc-users] Printrboard and LinuxCNC

2014-03-02 Thread Steve Blackmore
On Sun, 2 Mar 2014 07:17:32 -0500, you wrote: Leave it to Windoze to turn off important hardware. About the only time that should apply is on a laptop when not plugged in or docked. If that's a default setting, that's just stupid. Yup How do they implement wake-on-lan if they power down the

Re: [Emc-users] Little OT, but...

2014-03-02 Thread Jon Elson
On 03/02/2014 02:26 PM, Gene Heskett wrote: Yup, but with DD-WRT watching the door, they never get close enough to this or any machine on my network to make an entry in the denyhosts log. Portsentry is another such very useful tool, check it out. It depends on your needs for access to the