tomwassenberg’s gists

tomwassenberg / g_suite_groups.gs

Last active June 21, 2018 14:31

Functions to get info about Google Groups from the G Suite API in a Google spreadsheet

	function showMyGroups() {
	var current_sheet;
	var groups;

	current_sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
	groups = GroupsApp.getGroups();

	if (groups.length > 0) {
	current_sheet.clearContents();
	current_sheet.getRange(1, 1).setValue("You are a member of " + groups.length + " groups:");

tomwassenberg / ocsp-test.sh

Last active February 3, 2022 21:26

Request and check OCSP response of queried domain name

	#!/usr/bin/env bash

	# Unofficial Bash strict mode
	set \
	-o errexit \
	-o errtrace \
	-o noglob \
	-o nounset \
	-o pipefail
	IFS=$'\n\t'

tomwassenberg / dns-query-loop.sh

Last active October 31, 2019 19:00

Queries an FQDN for a record type a certain amount of times, and lists the received statuses

	#!/usr/bin/env bash

	set -Eefuo pipefail
	IFS=$'\n\t'

	# Set these vars first
	host="${1}"
	record_type="${2}"
	request_limit=5

tomwassenberg / check-dns-resolver.sh

Created April 2, 2018 21:58

Checks the WhoIS of the upstream DNS resolver your system currently uses.

	#!/usr/bin/env bash

	dig +short whoami.akamai.net \| xargs whois \| grep -oP '^netname:\s+\K.+$'

tomwassenberg / apt-upgrade.yml

Last active August 23, 2019 10:05

A combination of Ansible tasks to trigger an apt upgrade, and wait for it to be done. In contrast to simply using the `apt` module, this is compatible with an apt upgrade already in progress. This is useful when you need to run a playbook on a host with `unattended-upgrades` enabled and is booted up on demand. Workaround for https://github.com/a…

	---
	- name: "update all packages"
	systemd:
	name: "apt-daily-upgrade.service"
	state: "started"

	- name: "check if updating is done"
	systemd:
	name: "apt-daily-upgrade.service"
	state: "stopped"

tomwassenberg / rotate-secrets.yml

Last active September 25, 2019 10:25

A hacky Ansible playbook that can be adapted to rotate Ansible Vault-encrypted secrets in-place.

	---
	# This playbook rotates Ansible Vault-encrypted secrets that are defined
	# as dictionaries in the group_vars of an Ansible repository.
	#
	# The changes are split over multiple tasks, because the dictionary logic
	# doesn't handle looping over secrets on differing levels within a
	# dictionary.

	- hosts: "all"
	user: "ansible"

tomwassenberg / check_ping_misses.sh

Created April 5, 2021 12:02

A script that pings a host and for any timeouts, prints the ICMP sequence number and date

	#!/usr/bin/env bash

	# Ping a host and for any timeouts, print the ICMP sequence number and date

	set -eEfuo pipefail
	IFS=$'\n'

	declare -i ICMP_SEQ ICMP_TIMEOUT_IN_SECONDS=1
	TARGET_IP=${1}
	shift

tomwassenberg / share_terminal_output.sh

Last active December 27, 2022 20:01

Shell snippet to share the output of your terminal with another user on the system.

	#!/usr/bin/env -S bash -i

	# Unofficial Bash strict mode
	set \
	-o errexit \
	-o errtrace \
	-o noglob \
	-o nounset \
	-o pipefail
	IFS=$'\n\t'

Tom Wassenberg tomwassenberg