mailinabox/scripts/dns.sh

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# DNS: Configure a DNS server using nsd
#######################################
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# After running this script, you also must run scripts/dns_update.sh,
# and any time a zone file is added/changed/removed, and any time a
# new domain name becomes in use by a mail user.
#
# This script will turn on DNS for $PUBLIC_HOSTNAME.
# Install nsd3, our DNS server software.
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apt-get -qq -y install nsd3
# Prepare nsd3's configuration.
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sudo mkdir -p /var/run/nsd3
mkdir -p "$STORAGE_ROOT/dns";
# Create the default zone if it doesn't exist.
if [ ! -f "$STORAGE_ROOT/dns/$PUBLIC_HOSTNAME.txt" ]; then
# can be an empty file, defaults are applied elsewhere
cat > "$STORAGE_ROOT/dns/$PUBLIC_HOSTNAME.txt" << EOF;
EOF
fi
# Let the storage user own all DNS configuration files.
chown -R $STORAGE_USER.$STORAGE_USER $STORAGE_ROOT/dns
# Permit DNS queries on TCP/UDP in the firewall.
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ufw allow domain