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cfcb5f5bbd
See http://phusion.github.io/baseimage-docker/ for why the stock Ubuntu image from Docker is not good enough for a complex system. Thanks to @pjz for updating the base image for Ubuntu 14.04 and starting the service scripts. see #16; merges #49
47 lines
1.6 KiB
Bash
Executable File
47 lines
1.6 KiB
Bash
Executable File
source scripts/functions.sh # load our functions
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# Base system configuration.
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apt-get -qq update
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apt-get -qq -y upgrade
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# Install openssh-server to ensure that the end result is consistent across all Mail-in-a-Boxes.
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apt_install openssh-server
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# Check that SSH login with password is disabled. Stop if it's enabled.
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if grep -q "^PasswordAuthentication yes" /etc/ssh/sshd_config \
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|| ! grep -q "^PasswordAuthentication no" /etc/ssh/sshd_config ; then
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echo
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echo "The SSH server on this machine permits password-based login."
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echo "Add your SSH public key to $HOME/.ssh/authorized_keys, check"
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echo "check that you can log in without a password, set the option"
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echo "'PasswordAuthentication no' in /etc/ssh/sshd_config, and then"
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echo "restart the openssh via 'sudo service ssh restart'"
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exit
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fi
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# Install basic utilities.
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apt_install python3 wget curl bind9-host
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# Turn on basic services:
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#
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# ntp: keeps the system time correct
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#
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# fail2ban: scans log files for repeated failed login attempts and blocks the remote IP at the firewall
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#
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# These services don't need further configuration and are started immediately after installation.
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apt_install ntp fail2ban
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if [ -z "$DISABLE_FIREWALL" ]; then
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# Turn on the firewall. First allow incoming SSH, then turn on the firewall.
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# Other ports will be opened at the point where we set up those services.
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#
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# Various virtualized environments like Docker and some VPSs don't provide
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# a kernel that supports iptables. To avoid error-like output in these cases,
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# let us disable the firewall.
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apt_install ufw
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ufw_allow ssh;
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ufw --force enable;
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fi |