ClementNerma

ZSH CheatSheet

This is a cheat sheet for how to perform various actions to ZSH, which can be tricky to find on the web as the syntax is not intuitive and it is generally not very well-documented.

Strings

Description	Syntax
Get the length of a string	${#VARNAME}
Get a single character	${VARNAME[index]}

curioustorvald

package net.torvald

import sun.misc.Unsafe

/**
 * Created by minjaesong on 2019-06-21.
 */

object UnsafeHelper {
    internal val unsafe: Unsafe

mikejoh

Setting up a Docker container as a DHCP server

In this guide I’ve tested a number of different commands and configurations using Docker to run a container with dhcpd (+macvlan driver) to serve my clients in my home network. In the end i’ll migrate from my Windows 2012 R2 Server running DHCP to a much more lightweight Docker container (7.42 MB in total). Wow.

My home environment:

• Firewall (Juniper)
  • I’m running IP helper for bootp which in this case means that i relay DHCP requests from various VLANs into one where i've placed my Windows 2012 R2 server. This is also where my container will live. See the FW configuration below:

tcwalther

import signal
import logging


# class based on: http://stackoverflow.com/a/21919644/487556
class DelayedInterrupt(object):
    def __init__(self, signals):
        if not isinstance(signals, list) and not isinstance(signals, tuple):
            signals = [signals]
        self.sigs = signals