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@bitonic
bitonic / configuration.nix
Last active August 20, 2025 22:59
NixOS configuration for a remote ZFS server on Hetzner
# Full NixOS configuration for a ZFS server with full disk encryption hosted on Hetzner.
# See <https://mazzo.li/posts/hetzner-zfs.html> for more information.
{ config, pkgs, ... }:
let
# Deployment-specific parameters -- you need to fill these in where the ... are
hostName = "...";
publicKey = "...";
# From `ls -lh /dev/disk/by-id`
@klzgrad
klzgrad / Naive-VPN.md
Created November 17, 2014 00:43
朴素VPN:一个纯内核级静态隧道

朴素VPN:一个纯内核级静态隧道

由于路由管控系统的建立,实时动态黑洞路由已成为最有效的封锁手段,TCP连接重置和DNS污染成为次要手段,利用漏洞的穿墙方法已不再具有普遍意义。对此应对方法是多样化协议的VPN来抵抗识别。这里介绍一种太简单、有时很朴素的“穷人VPN”。

朴素VPN只需要一次内核配置(Linux内核),即可永久稳定运行,不需要任何用户态守护进程。所有流量转换和加密全部由内核完成,原生性能,开销几乎没有。静态配置,避免动态握手和参数协商产生指纹特征导致被识别。并且支持NAT,移动的内网用户可以使用此方法。支持广泛,基于L2TPv3标准,Linux内核3.2+都有支持,其他操作系统原则上也能支持。但有两个局限:需要root权限;一个隧道只支持一个用户。

朴素VPN利用UDP封装的静态L2TP隧道实现VPN,内核XFRM实现静态IPsec。实际上IP-in-IP隧道即可实现VPN,但是这种协议无法穿越NAT,因此必须利用UDP封装。内核3.18将支持Foo-over-UDP,在UDP里面直接封装IP,与静态的L2TP-over-UDP很类似。

创建一个朴素VPN

@teffalump
teffalump / README.md
Last active January 4, 2025 13:50
OpenWRT adblock implementation

Others have recently developed packages for this same functionality, and done it better than anything I could do. Use the packages instead of this script:

Description

In its basic usage, this script will modify the router such that blocked addresses are null routed and unreachable. Since the address blocklist is full of advertising, malware, and tracking servers, this setup is generally a good thing. In addition, the router will update the blocklist weekly. However, the blocking is leaky, so do not expect everything to be blocked.

@phred
phred / pedantically_commented_playbook.yml
Last active July 24, 2025 08:51
Very complete Ansible playbook, showing off all the options
---
####
#### THIS IS OLD AND OUTDATED
#### LIKE, ANSIBLE 1.0 OLD.
####
#### PROBABLY HIT UP https://docs.ansible.com MY DUDES
####
#### IF IT BREAKS I'M JUST SOME GUY WITH
#### A DOG, OK, SORRY
####
@janx
janx / fetchsub.py
Created July 27, 2011 02:31
Feching subtitles on shooter.cn
#!/usr/bin/python2
USAGESTR = """Usage: fetchsub.py [-l langcode] videofile1 [videofile2 ...]
langcode: chn [default]
eng
sub file will saved in the same directory of each videofile
XXXXXXX.mkv 's sub files will named as:
XXXXXXX.chn.0.srt, XXXXXXX.chn.1.srt, XXXXXXX.chn.2.srt
"""
"""Author: sevenever
@DaveMessina
DaveMessina / git-find-blob.pl
Created June 6, 2010 18:25
git-find-blob: pass a blob SHA1 and find commits which contain it
#!/usr/bin/perl
use 5.008;
use strict;
use Memoize;
# by Aristotle Pagaltzis <http://stackoverflow.com/users/9410/aristotle-pagaltzis>
# taken from thread http://stackoverflow.com/questions/223678/git-which-commit-has-this-blob
# on 6 june 2010
my $usage =