jimyang2008

Notes on Raspberry Pi

Initial default username password for Raspbian

username: pi
password: raspberry

Update Locale to support "US"

Need to add US support in addition to default GB, including language, keyboard, etc.

$ raspi-config

jimyang2008

Setup RPi as a wireless bridge

Steps

To setup wireless bridge on a Raspberry Pi 3B, following steps need to followed strictly

STAIFNAME=wlan0
APIFNAME=wlan1
APIFMAC=b8:27:eb:1c:98:53
APIFIP=192.168.6.1

jimyang2008

#!/bin/bash

err() {
    msg="$@"
    echo "ERROR: $msg" >&2
}

centos6() {
    rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
    rpm -Uvh http://www.elrepo.org/elrepo-release-6-8.el6.elrepo.noarch.rpm

jimyang2008

share files over the Internet with command line

Using Croc (Recommended for simplicity and speed)
Install:
curl https://getcroc.schollz.com | bash


Send file from Host A:
croc send filename

jimyang2008

#!/bin/bash

err() {
    echo "ERROR: $@" >&2
}

: ${INFILE:="$HOME/.Xresources"}

if [[ $# -gt 0  ]]
then

jimyang2008

#!/bin/bash

set -e

err() {
    echo "$@" >&2
}

prepare_redhat() {
    yum update -y

jimyang2008

Overview

tcpdump

• Is a packet content inspection tool
• Does packet filtering by boolean expression

For expression syntax, refere to pcap-filter(7)

Syntax

jimyang2008

curl -LOk https://www.python.org/ftp/python/2.7.15/Python-2.7.15.tgz
tar -zf Python-2.7.15.tgz
cd Python.2.7.15
./configure --enable-optimization
make altinstall
curl -LOk https://bootstrap.pypa.io/get-pip.py
python2.7 get-pip.py

jimyang2008

#!/bin/bash

set -e

FTP_BASE='ftp://ftp.yangjian.net/pub'
LIBEVENT=libevent-2.1.8-stable
NCURSES=ncurses
TMUX=tmux-2.6
OPT_DIR=$HOME/opt

jimyang2008

#!/bin/bash

INSTALL_DIR=~/opt/python 
TMP_DIR=/tmp/install_python
mkdir -p $INSTALL_DIR

DIR_OPENSSL=openssl-1.0.2k
DIR_PYTHON=Python-2.7.13
FILE_OPENSSL=${DIR_OPENSSL}.tar.gz
FILE_PYTHON=${DIR_PYTHON}.tgz