yangvipguang

yangvipguang

go指针是什么？

定义
所谓指针其实你可以把它想像成一个箭头，这个箭头指向（存储）一个变量的地址。
因为这个箭头本身也需要变量来存储，所以也叫做指针变量。

通过下面的例子可以看出指针地之间的关系。

package main
  2 

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1 普通匹配，遵循最长匹配规则，假设一个请求匹配到了两个普通规则，则选择匹配长度大的那个
  例如： 
  location /{
    [matches]
  }
  location /test{
    [matches]
  }
2 精确匹配
  location = /{

yangvipguang

Let's Encrypt on Ubuntu 14.04, nginx with webroot auth

This document details how I setup LE on my server. Firstly, install the client as described on http://letsencrypt.readthedocs.org/en/latest/using.html and make sure you can execute it. I put it in /root/letsencrypt.

As it is not possible to change the ports used for the standalone authenticator and I already have a nginx running on port 80/443, I opted to use the webroot method for each of my domains (note that LE does not issue wildcard certificates by design, so you probably want to get a cert for www.example.com and example.com).

Configuration

For this, I placed config files into etc/letsencrypt/configs, named after <domain>.conf. The files are simple:

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#!/bin/bash

web_service='nginx'
config_file="/usr/local/etc/le-renew-webroot.ini"

le_path='/opt/letsencrypt'
exp_limit=30;

if [ ! -f $config_file ]; then
        echo "[ERROR] config file does not exist: $config_file"

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global
	log /dev/log	local0
	log /dev/log	local1 notice
	chroot /var/lib/haproxy
	stats socket /run/haproxy/admin.sock mode 660 level admin
	stats timeout 30s
	user haproxy
	group haproxy
	daemon
	maxconn 2048

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user www-data;
worker_processes 4;
pid /var/run/nginx.pid;



events {
  worker_connections 1024;
  use epoll;
  multi_accept on;

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global
  log         127.0.0.1 syslog
  maxconn     1000
  user        haproxy
  group       haproxy
  daemon


defaults
  log  global

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#!/bin/bash
#
# Put in your email and your actual domain name
# Server is for staging/testing not getting live certs

sudo letsencrypt certonly \
        --server https://acme-staging.api.letsencrypt.org/directory  \
        --webroot --webroot-path "/usr/share/nginx/html/" \
        --keep-until-expiring \
        --text \

yangvipguang

user www-data;
worker_processes 4;
pid /var/run/nginx.pid;



events {
  worker_connections 1024;
  use epoll;
  multi_accept on;