EnigmaCurry

OpenVPN and browser specific network routing with ip netns

Create network bridge

A network bridge allows us to have a virtual router that we can plug multiple network interfaces into. The IP address is assigned to the bridge rather than the individual network interface.

Create the bridge device, br0 :

EnigmaCurry

$ echo "export IAMSET=yes" > test.sh
$ source test.sh | tee
$ echo "IAMSET="$IAMSET 
IAMSET=
$ source test.sh
$ echo "IAMSET="$IAMSET
IAMSET=yes

EnigmaCurry

rjconsole() {
    # args: HOST JMX_PORT
    if [ $# -lt 1 ] ; then
    	echo "Usage: rjconsole [user@]HOST [JMX_PORT]" 
	return
    fi
    if [ $# == 1 ] ; then
        JMX_PORT=7199
    else
        JMX_PORT=$2

EnigmaCurry

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Hyperlink JIRA ticket numbers for DataStax projects
;;
;; For example, all of these tickets should be clickable when
;; bug-reference-prog-mode or bug-reference-mode are enabled :
;;
;;    CASSANDRA-8099
;;    PYTHON-363
;;    TESTINF-386
;;    DSP-6091

EnigmaCurry

# Copy an SSH key to multiple accounts on multiple machines.
# Better than ssh-copy-id because it works with systems that don't
# use passwords over ssh.

echo "Enter the ssh pub key: "
read PUBKEY

echo "Enter the hosts to copy the key to (separated by space)"
read HOSTS
HOSTS=(${HOSTS// / })

EnigmaCurry

#At the end of the file, makes it so resolv.conf isn't overwitten by dhcp
#Probably not necessary since we chattr +i the file though
nohook resolv.conf

EnigmaCurry

#!/bin/bash

## Run a script inside a screen session.
## Keeps the screen session active after the process is done.
## Logs to a file with the same name as SCREEN_NAME

if [ $# != 2 ] ; then
    echo "Usage: run_screen SCREEN_NAME SCRIPT" 
    exit 1;
fi

EnigmaCurry

cstar_perf uses Google APIs for authentication purposes. If you are installing cstar_perf for yourself you will need to generate your own API token for use with your installed version.

• Go to https://console.developers.google.com/project
• Click Create Project

Enter whatever Project Name you want (maybe use cstar-perf.) Use the suggested Project ID (doesn't matter, just has to be unique.)

It will take a minute for the project to be created, once it has:

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PREFIX=/opt/python
VERSION=2.7.8

mkdir -p $PREFIX/src
cd $PREFIX/src
wget https://www.python.org/ftp/python/$VERSION/Python-$VERSION.tar.xz
tar xfv Python-$VERSION.tar.xz
cd Python-$VERSION
./configure --prefix=/opt/python/Python-$VERSION
make

EnigmaCurry

#!/bin/bash

# Remote bitcoind RPC client through SSH tunnel
#
# If you have a remote bitcoind you'd like to query it's RPC interface
# from, this script will help you maintain the SSH tunnel to do so.
#
# Set REMOTE_HOST to the user@server your remote bitcoind is running on
# Set LOCAL_FORWARD_PORT to the port you want to run the tunnel on
# Set the RPC_PASSWORD to the rpc password bitcoind is set to use.