H2o官方介绍：H2O is a new generation HTTP server that provides quicker response to users with less CPU utilization when compared to older generation of web servers. Designed from ground-up, the server takes full advantage of HTTP/2 features including prioritized content serving and server push, promising outstanding experience to the visitors of your web site.大致意思就是，老子比nginx还牛逼，支持HTTP2,支持server_push，更多进官网了解：https://h2o.examp1e.net/index.html
官方放了一张和nginx的对比图，看图确实比nginx快了不止一小点！！！：
- 优点：速度快，特别在静态资源上，支持http2，支持server push，配置方便，不能隐藏版本号，有RPM包
- 缺点：包比nginx大，对rewrite支持不是很友好，nginx对rewrite支持比较好，nginx不支持server push。
安装，我用rpm安装：
[root@kaifashuo h2o]# vi /etc/yum.repos.d/h2o.repo
#bintray-tatsushid-h2o-rpm - packages by tatsushid from Bintray
[bintray-tatsushid-h2o-rpm]
name=bintray-tatsushid-h2o-rpm
#If your system is CentOS
baseurl=https://dl.bintray.com/tatsushid/h2o-rpm/centos/$releasever/$basearch/
#If your system is Fedora
#baseurl=https://dl.bintray.com/tatsushid/h2o-rpm/fedora/$releasever/$basearch/
gpgcheck=0
repo_gpgcheck=0
enabled=1
[root@kaifashuo ~]# yum install h2o
Loaded plugins: fastestmirror
bintray-tatsushid-h2o-rpm | 1.3 kB 00:00:00
bintray-tatsushid-h2o-rpm/7/x86_64/primary | 5.7 kB 00:00:00
Loading mirror speeds from cached hostfile
* base: centos.sonn.com
* epel: mirror.hmc.edu
* extras: centos.mirror.lstn.net
* remi-safe: mirrors.mediatemple.net
* rpmforge: mirror.hmc.edu
* updates: centos.mirror.ndchost.com
bintray-tatsushid-h2o-rpm 40/40
Resolving Dependencies
--> Running transaction check
---> Package h2o.x86_64 0:2.2.2-1.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=============================================================================================================================================================
Package Arch Version Repository Size
=============================================================================================================================================================
Installing:
h2o x86_64 2.2.2-1.el7 bintray-tatsushid-h2o-rpm 2.6 M
Transaction Summary
=============================================================================================================================================================
Install 1 Package
Total download size: 2.6 M
Installed size: 6.2 M
Is this ok [y/d/N]: y
Downloading packages:
h2o-2.2.2-1.el7.x86_64.rpm | 2.6 MB 00:00:02
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : h2o-2.2.2-1.el7.x86_64 1/1
Verifying : h2o-2.2.2-1.el7.x86_64 1/1
Installed:
h2o.x86_64 0:2.2.2-1.el7
Complete!
启动、关闭、加入开机启动
systemctl enable h2o.service
systemctl start h2o.service
systemctl restart h2o.service
systemctl stop h2o.service配置文件：采用Mruby和YAML风格，不敏感，如果配置出错，错误提示比较好！
mruby is a lightweight implementation of the Ruby programming language. With H2O, users can implement their own request handling logic using mruby, either to generate responses or to fix-up the request / response.算了，不翻译了，自己瞧吧~~~
[root@kaifashuo h2o]# vi /etc/h2o/h2o.conf
user: nobody
hosts:
"kaifashuo.com:80":
listen:
port: 80
paths:
"/":
redirect: https://www.kaifashuo.com/
"kaifashuo.com:443":
listen:
port: 443
ssl: &default_ssl
minimum-version: TLSv1.2
cipher-suite: EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5
certificate-file: /etc/letsencrypt/live/kaifashuo.com/fullchain.pem
key-file: /etc/letsencrypt/live/kaifashuo.com/privkey.pem
paths:
"/":
mruby.handler: |
Proc.new do |env|
headers = {}
if /\.(ico|gif|bmp|jpg|jpeg|png|swf|js|css|mp3)\z/.match(env["PATH_INFO"])
headers["cache-control"] = "max-age=864000"
end
[399, headers, []]
end
file.dir: /home/kaifashuo
redirect: # if not found, internally redirect to /index.php/
url: /index.php/
internal: YES
status: 307
file.custom-handler: # connect to external FastCGI server listening to /tmp/fcgi.sock
extension: .php
fastcgi.connect:
port: /dev/shm/php7-fpm.sock
type: unix
gzip: OFF
http1-upgrade-to-http2: ON
file.dirlisting: off
file.send-compressed: on
limit-request-body: 1024
file.mime.addtypes:
"text/html; charset=utf-8": .html
header.unset: "X-Powered-By"
http2-idle-timeout: 60
http2-max-concurrent-requests-per-connection: 50
http2-latency-optimization-max-additional-delay: 0.1
http2-latency-optimization-max-cwnd: 65535
header.add: "cache-control: max-age=50000000, public"
header.add: "strict-transport-security: max-age=50000000; includesubdomains; preload"
header.add: "x-content-type-options: nosniff"
header.add: "x-frame-options: deny"
header.add: "x-xss-protection: 1; mode=block"
access-log: /var/log/h2o/access-log
error-log: /var/log/h2o/error-log
pid-file: /var/run/h2o.pid
http2-reprioritize-blocking-assets: ON # performance tuning option
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