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Ubuntu-Setup.md

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Ubuntu Server Setup

We use Ubuntu 14.04 for hosting the application on a dedicated server (or VPS for cloud hosting).

Start out by installing vanilla Ubuntu 14.04 and then running the system updates.

Base Server Configuration

Base Packages

Update the machine and install some base packages that one would expect on a Linux machine.

sudo apt-get update; sudo apt-get upgrade -y; \
sudo apt-get install -y gcc make openssh-server zip \
              unzip curl gdebi lynx screen reptyr nmap \
              host wget rcconf libwww-perl \
              lsb-release iptables iftop iotop

Hostname

Set the machine's hostname.

echo mathapp.example.com | sudo tee /etc/hostname > /dev/null
sudo hostname $(cat /etc/hostname)
export HOSTNAME=`hostname`
echo "$(ifconfig eth0 | grep "inet addr" | cut -d ':' -f 2 | cut -d ' ' -f 1) $(cat /etc/hostname)" | sudo tee -a /etc/hosts > /dev/null

Bashrc

Modify the Bash RC to work with an interactive shell.

for dir in /home/* /etc/skel /root
do

sudo tee -a $dir/.bashrc > /dev/null <<'EOF'

# Color prompt
PS1='\t [${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\H\[\033[00m\]] \[\033[01;34m\]\w\[\033[00m\]\$ '

# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
    PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME}: ${PWD/$HOME/~}\007"'
    ;;
*)
    ;;
esac

export EDITOR=/usr/bin/vi

# set PATH so it includes user's private bin if the directory exists and isn't already in the path
if [ -d ~/bin ] && [[ ! "$PATH" =~ "~/bin" ]]; then
    export PATH="~/bin:$PATH"
fi
EOF

sudo tee -a $dir/.bash_profile > /dev/null <<'EOF'
if [ -f ~/.bashrc ]; then
   source ~/.bashrc
fi
EOF

sudo tee -a $dir/.bash_aliases > /dev/null <<'EOF'
alias ls='ls --color=auto'
alias ll='ls -l'
alias la='ls -A'
alias vi=vim
alias grep='grep --color=auto'
alias pbcopy='xsel --clipboard --input'
alias pbpaste='xsel --clipboard --output'
EOF

sudo mv $dir/.bashrc{,_interactive}
sudo tee -a $dir/.bashrc > /dev/null <<'EOF'
# if running interactively, load interactive config
[ -n "$PS1" ] && . ~/.bashrc_interactive

EOF

done

Exim

Set up Exim4 as local MTA

sudo apt-get install -y exim4
sudo dpkg-reconfigure exim4-config