You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
104 lines
3.2 KiB
Bash
104 lines
3.2 KiB
Bash
#!/usr/bin/env bash
|
|
# vim:ts=4:sts=4:sw=4:et
|
|
#
|
|
# Author: Hari Sekhon
|
|
# Date: 2022-07-06 12:58:19 +0100 (Wed, 06 Jul 2022)
|
|
#
|
|
# https://github.com/HariSekhon/DevOps-Bash-tools
|
|
#
|
|
# License: see accompanying Hari Sekhon LICENSE file
|
|
#
|
|
# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
|
|
#
|
|
# https://www.linkedin.com/in/HariSekhon
|
|
#
|
|
|
|
set -euo pipefail
|
|
[ -n "${DEBUG:-}" ] && set -x
|
|
srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
|
|
|
# shellcheck disable=SC1090
|
|
. "$srcdir/lib/aws.sh"
|
|
|
|
# shellcheck disable=SC2034,SC2154
|
|
usage_description="
|
|
Checks AWS Route 53 public hosted zones NS records are properly delegated in the public DNS hierarchy to all of the allocated AWS NS servers
|
|
|
|
Can specify one or more hosted zones space separated, otherwise will find and iterate all public hosted zones in the current AWS account
|
|
|
|
Helps test your AWS Route 53 setup and debug any imperfections in your NS delegation
|
|
|
|
|
|
$usage_aws_cli_required
|
|
"
|
|
|
|
# used by usage() in lib/utils.sh
|
|
# shellcheck disable=SC2034
|
|
usage_args="[<public_hosted_zones_to_check>]"
|
|
|
|
help_usage "$@"
|
|
|
|
#min_args 1 "$@"
|
|
|
|
status=0
|
|
|
|
check_zone(){
|
|
local id="$1"
|
|
local zone="$2"
|
|
local aws_ns_servers
|
|
local aws_ns_status=0
|
|
local public_ns_status=0
|
|
timestamp "Checking domain '$zone'"
|
|
aws_ns_servers="$(aws route53 get-hosted-zone --id "$id" | jq -r '.DelegationSet.NameServers[]')"
|
|
#public_delegated_ns_servers="$(host -t NS "$zone" | awk '{print $4}')"
|
|
public_delegated_ns_servers="$(dig "$zone" NS +short)"
|
|
for aws_ns_server in $aws_ns_servers; do
|
|
if grep -Fxq "$aws_ns_server." <<< "$public_delegated_ns_servers"; then
|
|
timestamp "AWS NS server '$aws_ns_server' found"
|
|
else
|
|
timestamp "WARNING: AWS NS server '$aws_ns_server NOT FOUND in live public delegated NS servers for zone '$zone'"
|
|
aws_ns_status=1
|
|
status=1
|
|
fi
|
|
done
|
|
for delegated_ns_server in $public_delegated_ns_servers; do
|
|
if ! grep -Fxq "${delegated_ns_server%.}" <<< "$aws_ns_servers"; then
|
|
timestamp "WARNING: ROGUE live delegated public NS server '$delegated_ns_server' found, not in list of AWS NS servers for zone '$zone'"
|
|
public_ns_status=1
|
|
status=1
|
|
fi
|
|
done
|
|
if [ $aws_ns_status -eq 0 ]; then
|
|
timestamp "AWS hosted zone '$zone' NS servers all accounted for in public DNS hierarchy delegation"
|
|
fi
|
|
if [ $public_ns_status -eq 0 ]; then
|
|
timestamp "Domain '$zone' all public NS servers accounted for in AWS hosted zone"
|
|
fi
|
|
echo >&2
|
|
}
|
|
|
|
timestamp "Getting hosted zones list"
|
|
hosted_zones="$(aws route53 list-hosted-zones | jq -r '.HostedZones[] | [.Id, .Name] | @tsv')"
|
|
echo >&2
|
|
|
|
if [ $# -gt 0 ]; then
|
|
for zone in "$@"; do
|
|
while read -r id name; do
|
|
if [ "${zone%.}" = "${name%.}" ]; then
|
|
check_zone "$id" "$name"
|
|
fi
|
|
done <<< "$hosted_zones"
|
|
done
|
|
else
|
|
while read -r id name; do
|
|
check_zone "$id" "$name"
|
|
done <<< "$hosted_zones"
|
|
fi
|
|
|
|
if [ $status -eq 0 ]; then
|
|
timestamp "OK: All zones passed NS delegation validation"
|
|
else
|
|
timestamp "ERROR: one or more zones failed NS delegation validation"
|
|
exit 1
|
|
fi
|