cupracer

#!/bin/bash

if [ $# -ne 1 ]; then
	echo "missing parameter"
	exit 1
fi

ZONEFILE=$1

if ! [ -f $ZONEFILE ]; then

cupracer

dd if=/dev/urandom of=myvolume.key bs=1 count=2048

cryptsetup luksFormat -c aes-cbc-essiv:sha256 -s 256 /path/to/myvolume
cryptsetup luksAddKey /path/to/myvolume myvolume.key 
cryptsetup luksRemoveKey /path/to/myvolume
cryptsetup luksDump /path/to/myvolume
cryptsetup luksOpen -d myvolume.key /path/to/myvolume myvolume_enc
mkfs.ext4 /dev/mapper/myvolume_enc

cupracer

# http://www.gigahype.com/resize-luks-encryped-lvm-partition/

# 1. Unmount the filesystem:
umount /secret

# 2. Run a filesystem check to clean up the inode tables before working with it:
fsck.ext3 -C 0 -f /dev/mapper/encrypted

# 3. Close out the LUKS filesystem:
cryptsetup luksClose encrypted

cupracer

<nfs>
  <nfs_entries config:type="list">
    <nfs_entry>
      <mount_point>/var/tmp</mount_point>
      <nfs_options>bind</nfs_options>
      <server_path>/tmp</server_path>
      <vfstype>auto</vfstype>
    </nfs_entry>
  </nfs_entries>
</nfs>

cupracer

aws s3api list-objects --bucket <bucket-name> --output json --query "[sum(Contents[].Size), length(Contents[])]"

cupracer

# filter by request host header
varnishlog -q 'ReqHeader ~ "Host: example.com"'

# filter by request url
varnishlog -q 'ReqURL ~ "^/some/path/"'

# filter by client ip (behind reverse proxy)
varnishlog -q 'ReqHeader ~ "X-Real-IP: .*123.123.123.123"'

# filter by request host header and show request url and referrer header

cupracer

lvresize --poolmetadata +50M data/dockerpool

cupracer

global
  log 127.0.0.1 local0
  log 127.0.0.1 local1 notice
  log-send-hostname
  maxconn 4096
  pidfile /var/run/haproxy.pid
  user haproxy
  group haproxy
  daemon
  stats socket /var/run/haproxy.stats level admin

cupracer

#! /usr/bin/env stap

global log_nfs_file_open = 1;
global log_nfs_file_read = 1;
global log_nfs_file_write = 1;
global log_nfs_getattr = 1;
global log_nfs_permission = 1;
global log_nfs_opendir = 1;
global log_nfs_lookup = 1;

cupracer

# Source: 
# https://docs.aws.amazon.com/AmazonS3/latest/dev/delete-or-empty-bucket.html

# empty a bucket
# aws s3 rm s3://bucket-name --recursive

# delete a bucket
# aws s3 rb s3://bucket-name --force