Jeff Moe
6 years ago
parent
1ed94ed2d0
commit
c3950577cf
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#!/bin/bash
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# forksand-sf-redis-bootstrap
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# GPLv3+
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# This script does some initial setup and config
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# Log script
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exec > >(tee /root/bootstrap-sf-redis.log) 2>/root/bootstrap-sf-redis.err
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set -x
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# Set locale
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echo "en_US.UTF-8 UTF-8" > /etc/locale.gen
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locale-gen
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update-locale
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# XXX Set timezone
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ln -sf /usr/share/zoneinfo/America/Denver /etc/localtime
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# Use apt-cache
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echo 'Acquire::http::Proxy "http://10.22.22.112:3142";' > /etc/apt/apt.conf
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# Set up git for tracking. XXX Ansible... XXX
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apt-get -y install git sudo
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cd /etc
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git init
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chmod og-rwx /etc/.git
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cat > /etc/.gitignore <<EOF
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prelink.cache
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*.swp
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ld.so.cache
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adjtime
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blkid.tab
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blkid.tab.old
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mtab
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resolv.conf
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asound.state
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mtab.fuselock
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aliases.db
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EOF
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git config --global user.name "jebba"
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git config --global user.email moe@forksand.com
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cd /etc ; git add . ; git commit -m 'Add apt cache' /etc/apt/apt.conf
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cd /etc ; git add . ; git commit -a -m 'Set up new Debian stretch server.'
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# Firewall
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# Create iptables startup script (is this still needed? From squeeze era)
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cat > /etc/network/if-pre-up.d/iptables <<EOF
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#!/bin/bash
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# iptables
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/sbin/iptables-restore < /etc/iptables.up.rules
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EOF
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cat > /etc/iptables.test.rules <<EOF
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# iptables.test.rules
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*filter
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# Allows all loopback (lo0) traffic and drop all traffic to 127/8 that doesn't use lo0
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-A INPUT -i lo -j ACCEPT
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# Accepts all established inbound connections
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-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
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# Allows all outbound traffic
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# You could modify this to only allow certain traffic
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-A OUTPUT -j ACCEPT
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# SSH Access Port
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-A INPUT -p tcp --dport 22 -j ACCEPT
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-A INPUT -p tcp --dport 22202 -j ACCEPT
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# Allow web port 80 for Letsencrypt
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#-A INPUT -p tcp --dport 80 -j ACCEPT
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# Redis Access Ports
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-A INPUT -p tcp --dport 6379 -j ACCEPT
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-A INPUT -p tcp --dport 16379 -j ACCEPT
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# Allow ping
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#-A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT
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# log iptables denied calls (access via 'dmesg' command)
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-A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7
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# Reject all other inbound - default deny unless explicitly allowed policy:
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-A INPUT -j REJECT
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-A FORWARD -j REJECT
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COMMIT
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EOF
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touch /etc/iptables.up.rules
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chmod 600 /etc/iptables.up.rules
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chmod 755 /etc/network/if-pre-up.d/iptables
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chmod 600 /etc/iptables.test.rules
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iptables-restore < /etc/iptables.test.rules
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iptables -L -n
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iptables-save > /etc/iptables.up.rules
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cd /etc ; git add . ; git commit -a -m 'Set up firewall.'
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# scriptlet for root to reload firewall rules
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cat > /root/iptables-reload <<EOF
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iptables-restore < /etc/iptables.test.rules
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iptables-save > /etc/iptables.up.rules
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EOF
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chmod 700 /root/iptables-reload
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# SET UP APT
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#
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cat > /etc/apt/sources.list <<EOF
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deb http://mirrors.kernel.org/debian/ stretch-backports main
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deb http://mirrors.kernel.org/debian/ stretch main
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deb http://mirrors.kernel.org/debian/ stretch-updates main
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deb http://security.debian.org/ stretch/updates main
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EOF
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# Make apt use IPv4:
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echo 'Acquire::ForceIPv4 "true";' | tee /etc/apt/apt.conf.d/99force-ipv4
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git add /etc/apt/apt.conf.d/99force-ipv4
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git commit -m "Force APT to use IPv4, not IPv6." /etc/apt/apt.conf.d/99force-ipv4
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cd /etc ; git add . ; git commit -a -m 'Set up apt.'
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# UPGRADE SERVER
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apt-get update
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apt-get -y dist-upgrade --download-only
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DEBIAN_FRONTEND=noninteractive apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confnew" dist-upgrade
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cd /etc ; git add . ; git commit -a -m 'Update base install'
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apt-get -y --download-only install \
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--no-install-recommends \
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apt-transport-https \
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bzip2 \
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ca-certificates \
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colordiff \
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curl \
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debian-archive-keyring \
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exuberant-ctags \
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git \
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host \
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less \
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locales \
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lsb-release \
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man-db \
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manpages \
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molly-guard \
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net-tools \
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ntp \
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openssh-server \
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python3 \
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qemu-guest-agent \
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rsync \
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telnet \
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traceroute \
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vim \
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vim-scripts
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DEBIAN_FRONTEND=noninteractive apt-get -y \
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-o Dpkg::Options::="--force-confdef" \
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-o Dpkg::Options::="--force-confnew" \
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install \
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--no-install-recommends \
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apt-transport-https \
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bzip2 \
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ca-certificates \
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colordiff \
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curl \
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debian-archive-keyring \
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exuberant-ctags \
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git \
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host \
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less \
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locales \
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lsb-release \
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man-db \
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manpages \
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molly-guard \
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net-tools \
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ntp \
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openssh-server \
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python3 \
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qemu-guest-agent \
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rsync \
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telnet \
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traceroute \
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vim \
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vim-scripts
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cd /etc ; git add . ; git commit -a -m 'Install base packages'
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# NTP SharkTech. They firewall outside ntp.
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sed -i \
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-e 's/pool 0.debian.pool.ntp.org/\#pool 0.debian.pool.ntp.org/g' \
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-e 's/pool 1.debian.pool.ntp.org/\#pool 1.debian.pool.ntp.org/g' \
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-e 's/pool 2.debian.pool.ntp.org/\#pool 2.debian.pool.ntp.org/g' \
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-e 's/pool 3.debian.pool.ntp.org/pool time.sharktech.net iburst/g' \
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/etc/ntp.conf
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cd /etc ; git add . ; git commit -a -m 'Use SharkTech NTP (others firewalled).'
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/etc/init.d/ntp restart
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# Small user tweaks
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echo :syntax on > ~/.vimrc
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echo :syntax on > /home/jebba/.vimrc
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chown jebba:jebba /home/jebba/.vimrc
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echo export EDITOR=vi >> /root/.bashrc
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# XXX Passwordless sudo XXX Ya, probably remove
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sed -i -e 's/%sudo\tALL=(ALL:ALL) ALL/%sudo ALL=(ALL) NOPASSWD: ALL/g' /etc/sudoers
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adduser jebba sudo
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cd /etc ; git add . ; git commit -a -m 'Set up passwordless sudo'
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# SSH config XXX sed cruft
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sed -i \
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-e 's/PermitRootLogin yes/PermitRootLogin no/g' \
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-e 's/\#PermitRootLogin prohibit-password/PermitRootLogin no/g' \
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-e 's/\#PasswordAuthentication yes/PasswordAuthentication no/g' \
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-e 's/\#X11Forwarding yes/X11Forwarding no/g' \
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/etc/ssh/sshd_config
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echo 'KexAlgorithms curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256' >> /etc/ssh/sshd_config
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echo 'Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr' >> /etc/ssh/sshd_config
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# Need to update/fix for Debian Buster (testing/10). This line breaks Buster:
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#echo 'MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-ripemd160-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160,umac-128@openssh.com' >> /etc/ssh/sshd_config
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# XXX Add admins as only allowed ssh users
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# XXX add user for ansbile
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echo "AllowUsers jebba" >> /etc/ssh/sshd_config
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cd /etc ; git add . ; git commit -a -m 'Set up sshd'
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systemctl restart sshd
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# Startup XXX disable unneeded.
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for i in rsync exim4 saned
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do echo $i
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/usr/sbin/update-rc.d $i disable
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done
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# XXX KILL THIS, listening on public port (firewalled, but still):
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# tcp 0 0 0.0.0.0:5355 0.0.0.0:* LISTEN 296/systemd-resolve
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cd /etc ; git add . ; git commit -a -m 'Turn off junk on boot'
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# GRUB
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sed -i -e 's/^GRUB_TIMEOUT=5/GRUB_TIMEOUT=0/g' /etc/default/grub
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sed -i -e 's/^#GRUB_TERMINAL=console/GRUB_TERMINAL=console/g' /etc/default/grub
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sed -i -e 's/^GRUB_CMDLINE_LINUX=""/GRUB_CMDLINE_LINUX="ipv6.disable=1"/g' /etc/default/grub
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echo 'GRUB_DISABLE_OS_PROBER=true' >> /etc/default/grub
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update-grub
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cd /etc ; git add . ; git commit -a -m 'GRUB tweaks'
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# Don't load IPv6 kernel modules.
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echo blacklist ipv6 > /etc/modprobe.d/ipv6.conf
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echo alias net-pf-10 off >> /etc/modprobe.d/aliases.conf
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echo alias ivp6 off >> /etc/modprobe.d/aliases.conf
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# Disable IPv6 with sysctl.
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cat >> /etc/sysctl.conf <<EOF
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net.ipv6.conf.all.disable_ipv6 = 1
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net.ipv6.conf.default.disable_ipv6 = 1
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net.ipv6.conf.lo.disable_ipv6 = 1
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#net.ipv6.conf.ens3.disable_ipv6 = 1
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EOF
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sysctl -p
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cd /etc ; git add . ; git commit -a -m 'Disable IPv6'
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# Fix network to come up on boot
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sed -i -e 's/allow-hotplug/auto/g' /etc/network/interfaces
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cd /etc ; git add . ; git commit -a -m 'Auto start network'
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# XXX not sure why this is getting installed:
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apt-get -y autoremove
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cd /etc ; git add . ; git commit -a -m 'autoremove'
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apt clean
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exit 0
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# Reboot
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# Set up Redis
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apt-get install -t stretch-backports redis redis-sentinel
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