72lions

/**
 * Creates a new Uint8Array based on two different ArrayBuffers
 *
 * @private
 * @param {ArrayBuffers} buffer1 The first buffer.
 * @param {ArrayBuffers} buffer2 The second buffer.
 * @return {ArrayBuffers} The new ArrayBuffer created out of the two.
 */
var _appendBuffer = function(buffer1, buffer2) {
  var tmp = new Uint8Array(buffer1.byteLength + buffer2.byteLength);

dpino

#!/usr/bin/env bash

set -x

if [[ $EUID -ne 0 ]]; then
   echo "You must run this script as root."
   exit 1
fi

# Fill up IPv6 addresses for the veth pair.  Addresses must belong to the

yangshaoshun

获取旧版本 app 应用

iOS

不越狱

windows

• Downloading Legacy App Store Apps – WriteKay
• iTunes下载 App Store 任意历史版本应用 － 玩机技巧 － iTools论坛

bom-d-van

# https://www.percona.com/blog/2008/11/07/poor-mans-query-logging/

tcpdump -i eth0 -s 0 -l -w - dst port 3306 | strings | perl -e '
while(<>) { chomp; next if /^[^ ]+[ ]*$/;
  if(/^(SELECT|UPDATE|DELETE|INSERT|SET|COMMIT|ROLLBACK|CREATE|DROP|ALTER)/i) {
    if (defined $q) { print "$q\n"; }
    $q=$_;
  } else {
    $_ =~ s/^[ \t]+//; $q.=" $_";
  }

staltz

Not for everyone. Each programmer has their own appreciation of what is good coding music.

For when I need to think deep, debug something, or design

(From most influential to least)

• David Helpling & Jon Jenkins (sample)
• Patrick O'Hearn (sample)
• Ólafur Arnalds (sample)
• Michael Hedges (sample)
• Alex de Grassi (sample)

frafra

systemd containers

Assumptions

This how-to uses mybox as container name, mkosi in order to create containers (it works for multiple distributions and has more features compared to dnf --installroot), and crudini for configurations file (you can use your preferred text editor instead).

How to create a container with mkosi

# mkosi --cache /var/cache/mkosi -d fedora -t directory -o /var/lib/machines/mybox

ageis

security and hardening options for systemd service units

A common and reliable pattern in service unit files is thus:

NoNewPrivileges=yes
PrivateTmp=yes
PrivateDevices=yes
DevicePolicy=closed
ProtectSystem=strict

mustafaturan

Sample config for 2 million web socket connection

    sysctl -w fs.file-max=12000500
    sysctl -w fs.nr_open=20000500
    # Set the maximum number of open file descriptors
    ulimit -n 20000000

    # Set the memory size for TCP with minimum, default and maximum thresholds 
 sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'

Luzifer

Running docker-compose as a systemd service

Files

File	Purpose
/etc/compose/docker-compose.yml	Compose file describing what to deploy
/etc/systemd/system/docker-compose-reload.service	Executing unit to trigger reload on docker-compose.service
/etc/systemd/system/docker-compose-reload.timer	Timer unit to plan the reloads
/etc/systemd/system/docker-compose.service	Service unit to start and manage docker compose

jeiting

# Load the contents of the receipt file
receipt_file = open('./receipt_data.bin', 'rb').read()

# Use asn1crypto's cms definitions to parse the PKCS#7 format
from asn1crypto.cms import ContentInfo
pkcs_container = ContentInfo.load(receipt_file)

# Extract the certificates, signature, and receipt_data
certificates = pkcs_container['content']['certificates']
signer_info = pkcs_container['content']['signer_infos'][0]