Skip to content

Instantly share code, notes, and snippets.

On vacation

Lars Vierbergen vierbergenlars

On vacation
Block or report user

Report or block vierbergenlars

Hide content and notifications from this user.

Learn more about blocking users

Contact Support about this user’s behavior.

Learn more about reporting abuse

Report abuse
View GitHub Profile
#!/bin/bash -e
data="$(curl -A "delay-notification/1.0 ("\?from\=$IRAIL_FROM\&to\=$IRAIL_TO\&format\=json\&time=$IRAIL_TIME)"
connection="$(echo "$data" | jq '[.connection[] | select(has("vias") == false and .departure.left == "0")][0]')" # First one that goes straight through and has not left
delay="$[ $(echo "$connection" | jq '.departure.delay' -r) / 60 ]"
train_id="$(echo "$connection" | jq '.departure.vehicle' -r)"
departure_time_unix="$(echo "$connection" | jq '(.departure.delay|tonumber) + (.departure.time|tonumber)' -r)"
departure_time="$(date --date=@$departure_time_unix +%R)"
canceled="$(echo "$connection" | jq '.departure.canceled' -r)"

Breaking consul DNS with dnsmasq forwarding

Reproduction steps

  1. docker-compose up
  2. Find the UDP port that dnsmasq is listening on (docker ps)
  3. Send a DNS query.
    1. dig @ -p <dnsmasq port> A consul.service.consul (This works and resolves to
    2. dig @ -p <dnsmasq port> DS consul.service.consul (This does not work and times out in dig)
  4. Have a look at your consul and dnsmasq logs. You have now succesfully DoS'ed consul and dnsmasq DNS.
vierbergenlars /
Created Jan 23, 2019
Bridge a port that is exposed inside a container to your host
# Call as docker-intercept <container-name> <port-inside-container> <port-on-host>
set -e
network_id="$(docker inspect "$container" | jq '.[0].NetworkSettings.Networks | to_entries | .[0].value.NetworkID' -r)"
container_ip="$(docker inspect "$container" | jq '.[0].NetworkSettings.Networks | to_entries | .[0].value.IPAddress' -r)"
import net.sf.acegisecurity.providers.dao.User;
import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.DelegateTask;
import org.activiti.engine.delegate.ExecutionListener;
import org.activiti.engine.delegate.JavaDelegate;
import org.activiti.engine.delegate.TaskListener;
import org.activiti.engine.delegate.VariableScope;
View build.gradle
plugins {
id 'eu.xenit.docker-alfresco' version '4.0.2'
repositories {
maven {
url ""
git ls-files | grep -v .jpg$ | grep -v .min.js$ | grep -v composer | grep -v views/errors | grep -v application/config | xargs -n1 git blame -w | ruby -n -e '$_ =~ /^.*\(([a-zA-Z ]+)\d{4}/; puts $1' | sed 's/ //g' | sort -f | uniq -c | sort -n
git log --no-merges --shortstat --use-mailmap --format='%aE' -- application/cache application/config application/controllers application/core application/helpers application/hooks application/index.html application/language application/libraries application/logs application/migrations application/models application/resources application/third_party application/views |sed 's/\(.*\)@.*/\1/' | grep -v "^$" | awk 'BEGIN { line=""; } !/^ / { if (line=="" || !match(line, $0)) {line = $0 "," line }} /^ / { print line " # " $0; line=""}' | sort | sed -E 's/# //;s/ files? changed,//;s/([0-9]+) ([0-9]+ deletion)/\1 0 insertions\(+\), \2/;s/\(\+\)$/\(\+\), 0 deletions\(-\)/;s/insertions?\(\+\), //;s/ deletions?\(-\)//' | awk 'BEGIN {name=""; files=0; insertions=0; deletions=0;}
View a-wp-update-notfier-crontab
0 0 * * 1 bash -c 'update_check=$($HOME/bin/wp core check-update --path=$HOME/apps/wordpress-main); if [[ ! "$update_check" =~ ^Success: ]]; then echo -e "Please update wordpress to the latest version.\n$update_check"| mail $USER -s "Wordpress update"; fi'
View migrate-dokuwiki-to-authserver.php
if($_SERVER['argc'] != 2) {
printf("%s dokuwiki_users\n", $_SERVER['argv'][0]);
echo "Converts all users found in the dokuwiki users.auth.php file 'dokuwiki_users'\n";
echo "to SQL to be imported in the authserver database. (on stdout) \n";
$dokuwikiUsers = file($_SERVER['argv'][1], FILE_SKIP_EMPTY_LINES|FILE_IGNORE_NEW_LINES);
$dokuwikiUsers = array_filter($dokuwikiUsers, function($line) { return $line[0] !== '#'; });
View gist:5459016b021ee604bd72
bad_trees=$(git fsck 2>&1 | awk '{print $4}' | sed s/://)
commits_with_bad_root_tree=$(git log --pretty=format:%H:%T | grep -E '('$(echo "$bad_trees" | tr "\n" '|' | sed s/.$//)')$' | cut -d: -f1)
echo "$bad_trees" | wc -l
echo "$commits_with_bad_root_tree" | wc -l
echo "$commits_with_bad_root_tree" | git log --stdin

Keybase proof

I hereby claim:

  • I am vierbergenlars on github.
  • I am vierbergenlars ( on keybase.
  • I have a public key whose fingerprint is 243F C82D 5D86 75D1 2A8D 76CD 00A9 3F8F 7577 7E8A

To claim this, I am signing this object:

You can’t perform that action at this time.