Anybody know why my .desktop file doesn't create a terminal? It runs the Java program just fine though. [Desktop Entry] Name=test Type=Application Exec=java -jar test.jar Terminal=true Hidden=false Here is the test.java program if you want to try it: import java.awt.*; import javax.swing.*; public c...
The @reboot scheme isn't going to work either because the X11 desktop isn't running when cron tries to start the program, hence the headless errors. Probably the simplest method to run a program like this is to use a Desktop file in your autostart directory. In the /home/pi/.config/autostart directo...
Do you want to find the most popular pixel color or do you want the average color of your image? I'm not a python programmer but I can tell you how I would go about it and maybe then you can program it. 1) Create an array of integers for the color values of each pixel. 2) Create a hashmap that uses ...
Sure and no it wouldn't be too difficult. You could wire up each teller position with a switch, one position is available and the other is busy. Connect the switch to a Pi I/O and display that teller number along with all the other numbers that are free and remove it when not. When a number is added...
Hi, could you Linux geeks help me? I must use a blackbox program, that expects data to arrive on Localhost port xxx. (from ser2net) My data source is another intranet address, port 23. You mean it connects to port 23 or the source port is 23? Can i manage that without programming? if yes, how? If n...
First of all, standard mode (non-passive) ftp uses both ports 21 and 20. I already had this working. I even verified I was able to connect, download and upload files. I want to use passive to allow incoming data connections on specific ports that I can forward through my hardware firewall. In activ...
Coming to this one late but I run all my Pi headless using standard VNC server and the only thing I change is # uncomment to force a console size. By default it will be display's size minus # overscan. framebuffer_width=1900 framebuffer_height=1024 in /boot/config.txt nothing else needed at all +1
Raspbian comes with a RealVNC server installed. There is an Android VNC client app and probably one for the other OS' too. I think the encryption in RealVNC is more than adequate for your phone.
Passive cant work out of the box without the setting the passive ports. Port 21 and 20 are used for standard FTP, which works fine. I only have a problem when I turn on passive. Respectfully, you are wrong. This isn't the first FTP I have set up, only the first on a Linux system. That's clear. I ha...
Passive works out of the box on vsftpd. You don't need all those configuration entries to get it to work (I really don't think you want listen=YES). There is one caveat to that though, do you have ufw running? If so you need to tell it to allow the related connection. iptables -A PREROUTING -t raw -...
The python interpreter is not in pi's crontab path so it won't run. False. On any normal Raspbian system (and probably any/all others), both python and python3 are in /usr/bin and, despite all and sundry claims to the contrary that you may see either on these forums or online, /usr/bin is in the de...
I don't know what sort of compression you've got on your video but 500 sites streaming HD takes a big pipe. Are they all viewing the same video on the same day? Can you send out tomorrow's video overnight? You can use multicast to transmit only once and all sites can receive the data. You might need...
I need a really simple queue manager (by a person's name) so we know who is next in line. Is anyone aware of anything that will run on a Pi that does this? Kept me entertained for an afternoon! //package com.knutejohnson.pi; import java.awt.*; import java.awt.event.*; import java.util.*; import jav...
hello. I want to run code in crontab between hours every 1 minute but it doesn't work. in reality the code starts the job at the indicated time (10:00) but it doesn't finish its execution at the indicated time (19:00). the last line in the crontab is : * 10-19 * * * /usr/bin/python /home/pi/Desktop...
Hi, i have set up routing between the two so i can reach an application that will only listen to the static IP, even from the wan interface. This works as long as something is plugged into the ethernet socket, usually an ethernet switch... That doesn't make any sense, maybe you better explain that ...
That's a fair enough call, but alas I don't think it is THE problem. Alas I have since restarted/reset the NTP server so I can't show you the problem now. But indulge me with this line of thinking: On the NTP server, it has 3 external servers in its list. So there is a good source for the right tim...