Categories
Mastering Development System & Network

Why is ISC DHCP server ignoring the fixed-address statement?

I want for the devices which belong to different VLANs to have different routers. For instance: The device 10.0.10.84 inside a VLAN 10.0.10.0/24 would have its router set to 10.0.10.1, whereas: The device 10.0.11.6 belonging to 10.0.11.0/24 should use the router 10.0.11.1. I configured ISC DHCP server like this: subnet 10.0.10.0 netmask 255.255.255.0 { option […]

Categories
Arduino Ask Engineering

Sending data from ATmega to PC with LoRa

I have set up a system based on an ATmega1284pa, which collects data, and then sends them via LoRa to my PC. The LoRa modules I use are Dorji DRF1276DM. On the PC side, I have written a C program that handles the com port to receive data from LoRa and store them to a […]

Categories
Mastering Development System & Network

Client is sending ‘udp port 68 unreachable’ in response to DHCP ACK – why?

Please help me understand the following DHCP traffic. I’ve put my comments below each packet: 15:49:52.968450 d8:0b:9a:15:27:ec > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 590: (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 576) 0.0.0.0.68 > 255.255.255.255.67: [udp sum ok] BOOTP/DHCP, Request from d8:0b:9a:15:27:ec, length 548, xid 0x993a7913, secs 1, […]

Categories
User Help

How to download big website with wiki and forum?

I’m on Windows. I would like to download http://www.tekkenzaibatsu.com/ which has different subdirectories like http://www.tekkenzaibatsu.com/wiki/ and http://www.tekkenzaibatsu.com/forums/. The website will be closed later this month, as owner has announced a few days ago. The http://www.tekkenzaibatsu.com/forums/ will need login support. I already have working cookies.txt ready to feed into programs. I googled this issue and there […]

Categories
Mastering Development

How to correctly response to HTTP request

I am trying to create simple server which will repond to every HTTP request with 200 OK. I write code below, but when I called the server with Postman I ended with wrong result. If I do NOT call closesocket(clientSocket), Postman is waiting infinitely long for response with Sending requst…. I i do call closesocket(clientSocket), […]

Categories
Mastering Development

How to get microsecond from now() in Erlang

I try to match the corresponding thread with the timestamp (microsecond from now function), just like jill received intro message from john [739000] and john received reply message from jill [739000] if I == true -> M_pid!{lists:concat([Self_name,” received intro message from “, Process_name , “[“,erlang:now(),”]”]), self()}, %io:fwrite(I), whereis(Process_name)!{Self_name, “reply”,self()}, friends(Msg, M_pid, State + 1, Self_name); […]

Categories
Linux Mastering Development

Thunderbird: move Quick Filter Toolbar to main panel

When I open the “customize” menu in Thunderbird, I can add or remove the items from the toolbar. This way, I can reorder the buttons “write”, “reply”, “reply all”, or remove them altogether. The Quick Filter Toolbar cannot be moved like this. There used to be an addon called quickfiltertoolbar, which made it possible to […]

Categories
Linux Mastering Development

Thunderbird: move Quick Filter Toolbar to main panel

When I open the “customize” menu in Thunderbird, I can add or remove the items from the toolbar. This way, I can reorder the buttons “write”, “reply”, “reply all”, or remove them altogether. The Quick Filter Toolbar cannot be moved like this. There used to be an addon called quickfiltertoolbar, which made it possible to […]

Categories
Linux Mastering Development

Thunderbird: move Quick Filter Toolbar to main panel

When I open the “customize” menu in Thunderbird, I can add or remove the items from the toolbar. This way, I can reorder the buttons “write”, “reply”, “reply all”, or remove them altogether. The Quick Filter Toolbar cannot be moved like this. There used to be an addon called quickfiltertoolbar, which made it possible to […]

Categories
Linux Mastering Development

Thunderbird: move Quick Filter Toolbar to main panel

When I open the “customize” menu in Thunderbird, I can add or remove the items from the toolbar. This way, I can reorder the buttons “write”, “reply”, “reply all”, or remove them altogether. The Quick Filter Toolbar cannot be moved like this. There used to be an addon called quickfiltertoolbar, which made it possible to […]