LSM, SELinux, Netlabel, and CIPSO

LSM, SELinux, Netlabel, and CIPSO If you are new to CIPSO and SELinux, their relationship is confusing to say the least. I wanted to shed some light for those just setting out on the topic as to how the four of these things work together. LSM Original paper describing LSM: Linux Security Module Framework. Within the context […]

Setting Up SELinux (A quickstart)

What This Tutorial Covers A quick start for installing SELinux A quick start for configuring Multi-Level Security (MLS) Configuring Users and Files for MLS A listing of helpful SELinux commands The aim of this tutorial is to get the user up and running with SELinux quickly and provide additional resources for further research. Tutorial performed on: […]

A Simple SSL Client and Server in Python

Server import socket from socket import AF_INET, SOCK_STREAM, SO_REUSEADDR, SOL_SOCKET, SHUT_RDWR import ssl KEYFILE = ‘server_key.pem’ CERTFILE = ‘server_cert.pem’ def echo_client(s): while True: data = s.recv(8192) print(data.decode(“utf-8″)) if data == b”: break s.send(b’This is a response.’) print(‘Connection closed’) s.close() def echo_server(address): s = socket.socket(AF_INET, SOCK_STREAM) s.bind(address) s.listen(1) s.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1) s_ssl = ssl.wrap_socket(s, keyfile=KEYFILE, certfile=CERTFILE, […]

Connect GNS3 to ESXi

Introduction As far as I can tell, there’s no great way to make this happen. I will explain, but to give you an image up front, below is a diagram of what I did. It may seem daunting at first, but I’ll explain as we go along. Set Up Description My GNS3 server is running on […]

Spotify Does Not Play .m4a Files

Today I tried to play some Spotify files I had downloaded using youtube’s downloader, but could not get them to import or play. Symptoms You can play some m4a files, but not others. Quicktime will allow you to open the m4a file, but it’s longer than it should be and there is no sound Windows Media […]