I’m sending a raw Ethernet frame to the loopback interface (Linux ubuntu 4.15.0-34-generic) with the following python code: (We use a custom Ethernet type 0x6666, but using the packet length (50) as specified by the Ethernet II frame format has the same outcome) I would expect to see a packet of length …
Tag: python
Cannot install Flask with pip on my Raspberry Pi
I am trying to install Flask on my Raspberry Pi, but it seems that this is not possible anymore with the command: sudo pip install flask . I always return this message: Does anybody have an idea what’s going wrong? Answer This problem is described here. In short, the fix is to set date correctly, eg: su…
Creating Apache web server on Ubuntu with Connexion/Flask and public IP address
I am trying to run a simple python server with REST API and Connexion/Flask built in on a remote Linux server (binding to the server public IP address) using Apache. (Server is running Ubuntu 16.04.5 LTS, python code was written in Python 3.7) Here are some files for the server implementation: server.py: swag…
Can not INSERT INTO Postgresql
simplechan In other words, I installed a message board named simplechan, but I can not log in to a site dedicated to the administrator. Because you need a password to get there. I do not know the password. I entered in psql as follows In “simplechan/sql/create_table_query.sql” it was drawn as foll…
Why is $PATH in remote deployment path different from $PATH in remote system?
I’m currently working on Pycharm with remote python Interpreter(miniconda3/bin/python). So when I type echo $PATH in remote server, it prints /home/woosung/bin:/home/woosung/.local/bin:/home/woosung/miniconda3/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/…
coreutils timeout in a bash script not transparent for the application
I have an issue with executing application via /usr/bin/timeout in a bash script. In this specific case this is a simple python fabric script (fabric version 1.14) In order to install this version of fabric library run: pip install “fabric<2” There is no reproduction with new fabric 2.x. Shell …
Why upstart service does not stop when sys.exit is called by Python
I set up a Python application as a Linux service using Upstart script. I want to stop the service when sys.exit is called inside the python code due to some exception being caught. As it turns out, sys.exit did terminate the current process, but somehow the service keeps getting respawned. If I run status [se…
Change Anaconda Interpreter
My system has a set-up python environment (2.7) to work with certain programs, and I also want to install Miniconda3 for Python 3.6. When I call python in terminal, it will start the system python from /usr/bin/python. To achieve this, I removed the python symbolic link in ~/miniconda/bin/. Now, when I execut…
How to input password to a shell command ‘git push’ from a Jupyter Notebook?
I have the following code in a Jupyter Notebook’s cell: which will ask my password for Github but the cell keeps on running as I can’t find the way to input my password. For some reason, I want to push the code this way. I tried to follow the similar questions but nothing seems to be working in my…
scapy takes infinite time sending TCP SYN packet with no reply.
I want to send a simple SYN request to my router to get an ACK response in a bid to learn network (TCP/IP) using python and scapy. But scapy is taking a long time of getting any answer. script- What is the solution ? Answer So to summarize, you need to reverse IP and TCP order. What people call TCP/IP