Re: Security issues question in the Files Transfer system of D-Rats
One of the users also suggested using a folder on a certain capacity thumb drive attached to the computer and use that as the D-RATS Shared folder.??It is my understanding that if an infected file were to be uploaded, it could do no damage until and unless it was executed on the receiving machine.??It would be a simple matter to scan the thumb drive for malware periodically without having to do a scan of the entire computer to make sure nothing harmful was on the thumb drive.
I know there are malicious folks everywhere these days, but I have not run across people like that in the Amateur Radio community, not yet anyway.??But as the Good Lord says, "All have sinned and fallen short¡¡± so I guess it is better to be safe than sorry.??It would be a very nasty way to interfere in an emergency response.
Glen-KG5CEN
On Feb 14, 2021, 11:54 AM -0600, Emile ¡°Cheap Old Man¡± Diodene <ediodene@...>, wrote:
Yeah Glen, I like the ideas about the Symlinks from Mark...? I think in Windows the equivalent of /dev/null is $NULL from powershell or NUL?from a command prompt...
You'd have to iron out the particulars and exact syntax, but why not dump the temp directory contents to /dev/null?
This could be tuned on/off as desired, as well.
Other options:
- LD-PRELOAD ()"Another approach would be a LD_PRELOAD wrapper; basically a small shared library which is loaded before libc.so, and intercepts calls to "open" with something that checks the prospective file path and substitutes "/dev/null" if it would be in the target directory.This has the advantage of being (a) entirely in user-space - no kernel hacking required; and (b) only affecting the single errant application. A simple example is at
- Look into FUSE.
- A simple script to clobber any/all contents of the shared folder that runs often.
- SymLink shared folder contents to /dev/null.
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Re: Security issues question in the Files Transfer system of D-Rats
Yeah Glen, I like the ideas about the Symlinks from Mark...? I think in Windows the equivalent of /dev/null is $NULL from powershell or NUL?from a command prompt...
You'd have to iron out the particulars and exact syntax, but why not dump the temp directory contents to /dev/null?
This could be tuned on/off as desired, as well.
Other options:
- LD-PRELOAD ()"Another approach would be a LD_PRELOAD wrapper; basically a small shared library which is loaded before libc.so, and intercepts calls to "open" with something that checks the prospective file path and substitutes "/dev/null" if it would be in the target directory.This has the advantage of being (a) entirely in user-space - no kernel hacking required; and (b) only affecting the single errant application. A simple example is at
- Look into FUSE.
- A simple script to clobber any/all contents of the shared folder that runs often.
- SymLink shared folder contents to /dev/null.
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Re: Security issues question in the Files Transfer system of D-Rats
You'd have to iron out the particulars and exact syntax, but why not dump the temp directory contents to /dev/null?
This could be tuned on/off as desired, as well.
Other options:
- LD-PRELOAD ()"Another approach would be a LD_PRELOAD wrapper; basically a small shared library which is loaded before libc.so, and intercepts calls to "open" with something that checks the prospective file path and substitutes "/dev/null" if it would be in the target directory.This has the advantage of being (a) entirely in user-space - no kernel hacking required; and (b) only affecting the single errant application. A simple example is at
- Look into FUSE.
https://sites.google.com/site/installationubuntu/zx-spectrum/install-fuse-as-autostart-in-raspberry-pi
- A simple script to clobber any/all contents of the shared folder that runs often.
- SymLink shared folder contents to /dev/null. https://unix.stackexchange.com/questions/332019/replace-file-with-hard-link-to-dev-null
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Security issues question in the Files Transfer system of D-Rats
Earlier tonight, John Davis, WB4QDX, gave an interview on Ham Radio Crash Course talking about D-Rats.? During the talk, one of Josh Nass's people set up their own HRCC ratflector and a number of folks on the live stream connected to it.? I sent a couple of small files to Josh's station with instructions on setting up for a first time user and getting other features set under Preferences.? He objected to the fact that another station could send files to his shared folder because he was worried about someone possibly uploading malware to his computer as he is an engineer by trade.? We were trying to figure out how a station could block the use of the file transfer feature if they wished, but there does not appear to be a way to do it.
The most glaring problem on one machine that appeared to be a Raspberry Pi, was if you simply removed the "D-RATS Shared" folder from the Paths section, the program defaults to allowing a connecting station to access the computer's root directory.? On a Windows machine, not having the D-RATS Shared folder able to be located caused a Debug Error to be issued and the program stopped functioning.?? The user was talking about leaving the station online but now is hesitant to do so because he does not want people loading things onto his computer without his knowledge or request.? This probably would not be a problem when operating in an emergency situation when the infrastructure was down but could be an issue for the guys who are out there putting themselves out on YouTube trying to educate other hams and having their computers connected to the Internet where they could be accessed by hackers or someone who didn't like something they said on one of their shows.? Any ideas on how to turn the File Transfer system off safely?
Cordially,
Glen-KG5CEN
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Re: DV Data over USB Repeated Transmit
Mike, I saw your thread on the 7100. Maybe my set up is having similar?issues. How did you fix it? Did you just put RT cable in? Did you reconfigure the computer?
Tom WW3TRG?
OK, I'll answer my own question. I spoke to Icom tech support. The guy I spoke to is extremely well-versed in D-Rats and DStar and is on the US Trust in Texas. Anyway, the USB connection will do this due to the way USB is set up on the computer. It sends out encapsulated packets. Apparently my radio has always done this, as will a 9700 or a 705 when using the USB cable for DV data. It does not do this with the sound card modes as this is not the same format. Using a pure serial cable in the 2.5mm data jack gets a pure serial data stream and does not have this issue, so the orange RT Systems cable works fine. I was assure the guy we have in our D-Rats group using USB and his new 705 is doing the same thing but just does not notice it. The data received on the other end is fine...just the radio keys up a few times to send data instead of just once as I am more used to.?
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Re: DV Data over USB Repeated Transmit
OK, I'll answer my own question. I spoke to Icom tech support. The guy I spoke to is extremely well-versed in D-Rats and DStar and is on the US Trust in Texas. Anyway, the USB connection will do this due to the way USB is set up on the computer. It sends out encapsulated packets. Apparently my radio has always done this, as will a 9700 or a 705 when using the USB cable for DV data. It does not do this with the sound card modes as this is not the same format. Using a pure serial cable in the 2.5mm data jack gets a pure serial data stream and does not have this issue, so the orange RT Systems cable works fine. I was assure the guy we have in our D-Rats group using USB and his new 705 is doing the same thing but just does not notice it. The data received on the other end is fine...just the radio keys up a few times to send data instead of just once as I am more used to.?
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Re: DV Data over USB Repeated Transmit
Since JS8Call and fldigi are working, and D-RATS is not, it sounds as if the USB connection is pointed to the internal sound card. You must change the configuration to of the USB connection to work with DV data. It is covered in the low speed data section of the Icom radio user manual
Patrick (N3TSZ)
On Friday, February 12, 2021, 02:50:34 PM EST, Michael Mandell <mikemandell@...> wrote:
My 7100 started acting strange with D-Rats (039 version). Over the USB connection for data when I transmit chat the radio repeatedly keys up. First transmission after changing a connection or something is usually normal...keys up, sends, shuts down. Subsequent chat keys up like 5 times and appears to keep sending the same thing. It did not do this awhile ago. The 7100 is not my normal D-Rats radio ( I use an 880H with the orange cable) so hard to say when this began....new version of D-Rats, some kind of windows update...not sure. My feeling (guess) is there is some kind of buffer trying to send again and again. I plugged an orange cable into the 7100 and it works exactly like my other radios....keys up, sends data, shuts down. A member of our Thursday D-Rats group is having the exact same issue with an Icom 9700 over USB. Otherwise I'd think it was just my computer. Any ideas? Anyone else see this? ONLY on the USB connection, and ONLY on D-Rats DV data...JS8Call, fldigi....all that works perfect over USB.?
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DV Data over USB Repeated Transmit
My 7100 started acting strange with D-Rats (039 version). Over the USB connection for data when I transmit chat the radio repeatedly keys up. First transmission after changing a connection or something is usually normal...keys up, sends, shuts down. Subsequent chat keys up like 5 times and appears to keep sending the same thing. It did not do this awhile ago. The 7100 is not my normal D-Rats radio ( I use an 880H with the orange cable) so hard to say when this began....new version of D-Rats, some kind of windows update...not sure. My feeling (guess) is there is some kind of buffer trying to send again and again. I plugged an orange cable into the 7100 and it works exactly like my other radios....keys up, sends data, shuts down. A member of our Thursday D-Rats group is having the exact same issue with an Icom 9700 over USB. Otherwise I'd think it was just my computer. Any ideas? Anyone else see this? ONLY on the USB conection, and ONLY on D-Rats DV data...JS8Call, FLDigi....all that works perfect over USB.?
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I'm prepared to be informed and enlightened, my ID-5100?would be eternally grateful!
4Bs/73
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We have already experienced the sending of weather information from OpenWeather, our own station, do we have anything to do?
Will we cheer up the group with this?
Have you ever seen a weather station on D-Star? ...  You may think, you don't see the information on D-Rats, but on a modern radio ...
More, soon, we will continue to inform ...
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FW: [d-rats] RF-only D-RATS
Ooops wrong thread!
?
Sorry
?
Chief
?
toggle quoted message
Show quoted text
From: Roger F. Jordan Sr.
[mailto:w4rfj@...]
Sent: Friday, February 5, 2021 9:41 PM
To: '[email protected]'
Subject: RE: [d-rats] RF-only D-RATS
?
But that will not help using with BPQ, will it?
?
VR
?
Chief W4RFJ
?
?
Yes. Simply connect a D-STAR radio
to a serial port on the computer running the D-RATS repeater. In the D-RATS
repeater, add a serial device and specify the COM port where the radio is
connected. The port speed setting must match the setting in the radio (usually
4800 or 9600). Traffic on the radio will be sent to the network and vice-versa.
On Friday, February 5, 2021, 09:08:41 PM EST, Ricky Bramlett
<rickybramlett@...> wrote:
Can you have a group with some on RF and some on a network connection
and be in the same chat room?
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But that will not help using with BPQ, will it?
?
VR
?
Chief W4RFJ
?
toggle quoted message
Show quoted text
From: [email protected]
[mailto:[email protected]] On Behalf Of Patrick Connor via groups.io
Sent: Friday, February 5, 2021 9:17 PM
To: [email protected]
Subject: Re: [d-rats] RF-only D-RATS
?
Yes. Simply connect a D-STAR
radio to a serial port on the computer running the D-RATS repeater. In the
D-RATS repeater, add a serial device and specify the COM port where the radio
is connected. The port speed setting must match the setting in the radio (usually
4800 or 9600). Traffic on the radio will be sent to the network and vice-versa.
On Friday, February 5, 2021, 09:08:41 PM EST, Ricky Bramlett
<rickybramlett@...> wrote:
Can you have a group with some on RF and some on a network
connection and be in the same chat room?
|
Yes. Simply connect a D-STAR radio to a serial port on the computer running the D-RATS repeater. In the D-RATS repeater, add a serial device and specify the COM port where the radio is connected. The port speed setting must match the setting in the radio (usually 4800 or 9600). Traffic on the radio will be sent to the network and vice-versa.
Patrick (N3TSZ)
On Friday, February 5, 2021, 09:08:41 PM EST, Ricky Bramlett <rickybramlett@...> wrote:
Can you have a group with some on RF and some on a network connection and be in the same chat room?
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Can you have a group with some on RF and some on a network connection and be in the same chat room?
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Still trying to figure that part out. That would be the best thing in the world to get working.
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Re: BPQ32 via Local network or tcp
I have been trying to get it. I must be missing something between Linbpq and D-Rats. I will work more on it this weekend. I think this will be a great addition.
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Re: BPQ32 via Local network or tcp
ircddbgateway offers a d-rats port to which a ratflector or
d-rats can connect, thus interfacing a d-star repeater to it.
Marius, YO2LOJ
On 03.02.2021 06:20, Patrick Connor via
groups.io wrote:
toggle quoted message
Show quoted text
D-RATS has an AGWPE
interface. It defaults to port 8000, but you can change it.
D-RATS will also connect to a KISS TNC on a serial port. Be
aware that D-RATS does not transmit, or decode? AX.25
packets.
Patrick (N3TSZ)
On Tuesday, February 2, 2021, 11:11:35 PM EST, Ryan
Collier <kb8pmy@...> wrote:
I am wondering if there
is an easy way to get this connected to my linbpq setup.
It would be nice to be able to make this work through my
repeater and get connected to the packet network.
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Re: BPQ32 via Local network or tcp
D-RATS has an AGWPE interface. It defaults to port 8000, but you can change it. D-RATS will also connect to a KISS TNC on a serial port. Be aware that D-RATS does not transmit, or decode? AX.25 packets.
Patrick (N3TSZ)
On Tuesday, February 2, 2021, 11:11:35 PM EST, Ryan Collier <kb8pmy@...> wrote:
I am wondering if there is an easy way to get this connected to my linbpq setup. It would be nice to be able to make this work through my repeater and get connected to the packet network.
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BPQ32 via Local network or tcp
I am wondering if there is an easy way to get this connected to my linbpq setup. It would be nice to be able to make this work through my repeater and get connected to the packet network.
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Re: Minor progress on gtk 3 / Python3.
On 1/21/2021 1:14 PM, sylvain@... wrote: Thanks for your great work!
I am on Fedora 33 now and I missed D-Rats so much as I have a
ratflector on a Raspberry Pi in a closet. Few years ago I had a Python course, but I am really not good at it. If I can help for something let me know. Personnaly, I would love to translate D-Rats in French, but it's
maybe not the right time to work on it and any ways, I reallly don't
know where to start. I would not start with d-rats for learning how to do the translation. I would start with a simple "hello world" type program in python and look at the on-line tutorials for using gettext. As I understand it the procedure (Don't have development code handy here) roughly is: You have to import gettext You have to call some methods to setup the locale and this is important, the fallback for if the locale is not found. It seems by default the fallback is not enabled. I also really have not done more than get the d-rats unit-tests from failing because the locale setup and fallback were not setup, so I am just learning this too. But as I understand it, the way it works is that in the program instead of outputting strings to the user like "Hello World" and "Ok", "Cancel", etc, you put the strings in a special function named with an underscore characters, that is "_("Hello World"). The string in the function is then used as an index to look up a replacement string a locale specific file or database. If the look up fails, it just outputs the string passed to it. Since the strings are usually in English, that means for programmers of that language, like me, we don't need to learn much more than that. But really the best way for even English language programmers is to use keywords for the strings and build an English local database file of all the text contents. This would give a quick guide to other translators, because they would not have to look up all the strings in the program. Now for a GUI like D-RATS, there are "*.glade" files that contain string contants. GTK3 can be told to translate them, but those also need to be found and put in the database. 73, -John wb8tyw@.../wb8tyw@...
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Emile ¡°Cheap Old Man¡± Diodene
Glen Strecker
Patrick Connor
Kilovolt
Luis ea1axy
