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. > These devices are so cheap now, if I want web access near my > mill/machine tool, get another Android tablet and link that to the web. > Or am I missing something? > Most networks in the plants I work in have Web access blocked. So I need > to seek out a Web enabled Ethernet port or wireless connection when I > want to get outside the plant. > Sometimes I have to use my phone as a hotspot so I can download a manual > or get an email. > > Dave > 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 is to enable remote viewing of what's going on, you are going to have some kind of network, no way around it. If that network even touches the outside world, you open yourself to the risk of somebody getting in your pants and causing problems. If, however, it's a completely closed network, copper cable only, that would be okay. But, the minute you introduce wireless into the equation, you open a can of worms. That web server was designed to be run on an Android system, which more or less requires the application to be light weight. You can't cram in a whole bunch of security features into a light weight program, without the "light" part going away - both size of the program and machine overhead. I'm just very wary of exposing a machine controller to software that opens up a lot of security concerns. Remember, this software is installed on the controller. Low security software that opens ports on a machine are a glaring invitation to those who are interested in causing mischief. And wireless is really not very secure at all. Mark ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
