593 lines
19 KiB
Markdown
593 lines
19 KiB
Markdown
+++
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categories = ["インフラ"]
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author = "kazu634"
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images = ["ogp/2016-01-11-nginx-lets-encrypt-enabling-http2.webp"]
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description = "nginx + Let's Encryptを用いてhttp/2環境を構築してみました。"
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tags = ["nginx"]
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date = "2016-01-11T23:32:47+08:00"
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title = "nginx + let's encryptを利用してHTTP/2を有効化した"
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+++
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`nginx`+`Let's Encrypt`で`http/2`環境を構築したのでその時のメモです。
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## `nginx`のインストール・セットアップ
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### `nginx`で必要になる前提パッケージ
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`libgeoip-dev`をインストールします:
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```
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% aptitude install libgeoip-dev
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```
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### nginx-buildのインストール
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[cubicdaiya/nginx-build](https://github.com/cubicdaiya/nginx-build)をインストールします:
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```
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% wget https://github.com/cubicdaiya/nginx-build/releases/download/v0.6.5/nginx-build-linux-amd64-0.6.5.tar.gz
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```
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### nginxのインストール
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以下の手順で`nginx`をインストールします:
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```
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% vi configure.sh
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% ./nginx-build -d temp -v 1.9.9 -c configure.sh -zlib -pcre -openssl
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% cd temp/nginx/1.9.9/nginx-1.9.9
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% sudo make install
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```
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なお、`configure.sh`は以下の内容です:
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```
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#!/bin/bash
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./configure --with-cc-opt='-g -O2 -fPIE -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2' ¥
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--prefix=/usr/share/nginx --conf-path=/etc/nginx/nginx.conf --http-log-path=/var/log/nginx/access.log ¥
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--error-log-path=/var/log/nginx/error.log --lock-path=/var/lock/nginx.lock --pid-path=/run/nginx.pid ¥
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--http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi ¥
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--http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi ¥
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--http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-debug --with-pcre-jit --with-ipv6 --with-http_ssl_module ¥
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--with-http_v2_module --with-http_stub_status_module --with-http_realip_module --with-http_auth_request_module ¥
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--with-http_addition_module --with-http_geoip_module --with-http_gunzip_module --with-http_gzip_static_module ¥
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--with-http_sub_module
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```
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### `nginx`のセットアップ
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`nginx`をセットアップします。
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#### `nginx`起動に必要となるディレクトリ作成
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`nginx`起動に必要となるディレクトリを作成します:
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```
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% sudo mkdir -p /var/lib/nginx/{body,fastcgi,proxy,scgi,uwsgi}
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```
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#### `nginx`設定ファイルなどのデプロイ
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`nginx`設定ファイルなどをデプロイします:
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```
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% sudo mkdir -p /etc/nginx/{sites-available,sites-enabled}
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% vi /etc/nginx/nginx.conf
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% vi /etc/init.d/nginx
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% sudo update-rc.d nginx defaults
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% vi /etc/nginx/sites-enabled/default
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```
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`nginx.conf`の中身は以下のとおりです:
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```
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user www-data;
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# Newer version of Nginx calculates the worker_processes,
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# based on the CPU cores. Use this feature:
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worker_processes auto;
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pid /run/nginx.pid;
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# number of file descriptors used for nginx
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# the limit for the maximum file descriptors on the server is usually set by the OS.
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# if you don't set FD's then OS settings will be used.
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worker_rlimit_nofile 100000;
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events {
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# determines how much clients will be served per worker
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# max clients = worker_connections * worker_processes
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# max clients is also limited by the number of socket connections available on the system (~64k)
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worker_connections 4096;
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# accept as many connections as possible
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multi_accept on;
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# mutex config:
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accept_mutex on;
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accept_mutex_delay 100ms; # default: 500 -> 100 ms
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# optmized to serve many clients with each thread, essential for linux
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use epoll;
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}
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http {
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##
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# Basic Settings
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##
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sendfile on;
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tcp_nopush on;
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tcp_nodelay on;
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keepalive_timeout 30;
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types_hash_max_size 2048;
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include /etc/nginx/mime.types;
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default_type application/octet-stream;
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server_names_hash_bucket_size 128;
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# cache informations about FDs, frequently accessed files
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# can boost performance:
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open_file_cache max=200000 inactive=20s;
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open_file_cache_valid 30s;
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open_file_cache_min_uses 2;
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open_file_cache_errors on;
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# allow the server to close connection on non responding client,
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# this will free up memory
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reset_timedout_connection on;
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# request timed out -- default 60
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client_body_timeout 10s;
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# if client stop responding, free up memory -- default 60
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send_timeout 2s;
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##
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# Logging Settings
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##
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log_format ltsv "time:$time_local\thost:$remote_addr"
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"\tforwardedfor:$http_x_forwarded_for\t"
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"method:$request_method\tpath:$request_uri\tprotocol:$server_protocol"
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"\tstatus:$status\tsize:$body_bytes_sent\treferer:$http_referer"
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"\tua:$http_user_agent\ttaken_sec:$request_time"
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"\tbackend:$upstream_addr\tbackend_status:$upstream_status"
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"\tcache:$upstream_http_x_cache\tbackend_runtime:$upstream_response_time"
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"\tvhost:$host";
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access_log /var/log/nginx/access.log ltsv;
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error_log /var/log/nginx/error.log;
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##
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# Gzip Settings
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##
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gzip on;
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gzip_disable "msie6";
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gzip_min_length 10240;
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gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
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##
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# Virtual Host Configs
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##
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include /etc/nginx/conf.d/*.conf;
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include /etc/nginx/sites-enabled/*;
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}
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```
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`nginx`の設定ファイルの中身は以下のとおりです:
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```
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#!/bin/sh
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### BEGIN INIT INFO
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# Provides: nginx
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# Required-Start: $local_fs $remote_fs $network $syslog $named
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# Required-Stop: $local_fs $remote_fs $network $syslog $named
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: starts the nginx web server
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# Description: starts nginx using start-stop-daemon
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### END INIT INFO
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PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/share/nginx/sbin/
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DAEMON=/usr/share/nginx/sbin/nginx
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NAME=nginx
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DESC=nginx
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# Include nginx defaults if available
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if [ -r /etc/default/nginx ]; then
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. /etc/default/nginx
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fi
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STOP_SCHEDULE="${STOP_SCHEDULE:-QUIT/5/TERM/5/KILL/5}"
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test -x $DAEMON || exit 0
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. /lib/init/vars.sh
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. /lib/lsb/init-functions
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# Try to extract nginx pidfile
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PID=$(cat /etc/nginx/nginx.conf | grep -Ev '^\s*#' | awk 'BEGIN { RS="[;{}]" } { if ($1 == "pid") print $2 }' | head -n1)
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if [ -z "$PID" ]
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then
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PID=/run/nginx.pid
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fi
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# Check if the ULIMIT is set in /etc/default/nginx
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if [ -n "$ULIMIT" ]; then
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# Set the ulimits
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ulimit $ULIMIT
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fi
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#
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# Function that starts the daemon/service
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#
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do_start()
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{
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# Return
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# 0 if daemon has been started
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# 1 if daemon was already running
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# 2 if daemon could not be started
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start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON --test > /dev/null \
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|| return 1
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start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON -- \
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$DAEMON_OPTS 2>/dev/null \
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|| return 2
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}
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test_nginx_config() {
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$DAEMON -t $DAEMON_OPTS >/dev/null 2>&1
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}
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#
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# Function that stops the daemon/service
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#
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do_stop()
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{
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# Return
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# 0 if daemon has been stopped
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# 1 if daemon was already stopped
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# 2 if daemon could not be stopped
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# other if a failure occurred
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start-stop-daemon --stop --quiet --retry=$STOP_SCHEDULE --pidfile $PID --name $NAME
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RETVAL="$?"
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sleep 1
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return "$RETVAL"
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}
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#
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# Function that sends a SIGHUP to the daemon/service
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#
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do_reload() {
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start-stop-daemon --stop --signal HUP --quiet --pidfile $PID --name $NAME
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return 0
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}
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#
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# Rotate log files
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#
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do_rotate() {
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start-stop-daemon --stop --signal USR1 --quiet --pidfile $PID --name $NAME
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return 0
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}
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#
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# Online upgrade nginx executable [67/1833]
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#
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# "Upgrading Executable on the Fly"
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# http://nginx.org/en/docs/control.html
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#
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do_upgrade() {
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# Return
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# 0 if nginx has been successfully upgraded
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# 1 if nginx is not running
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# 2 if the pid files were not created on time
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# 3 if the old master could not be killed
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if start-stop-daemon --stop --signal USR2 --quiet --pidfile $PID --name $NAME; then
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# Wait for both old and new master to write their pid file
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while [ ! -s "${PID}.oldbin" ] || [ ! -s "${PID}" ]; do
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cnt=`expr $cnt + 1`
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if [ $cnt -gt 10 ]; then
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return 2
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fi
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sleep 1
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done
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# Everything is ready, gracefully stop the old master
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if start-stop-daemon --stop --signal QUIT --quiet --pidfile "${PID}.oldbin" --name $NAME; then
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return 0
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else
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return 3
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fi
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else
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return 1
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fi
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}
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case "$1" in
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start)
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[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
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do_start
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case "$?" in
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0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
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esac
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;;
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stop)
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[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
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do_stop
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case "$?" in
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0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
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esac
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;;
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restart)
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log_daemon_msg "Restarting $DESC" "$NAME"
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# Check configuration before stopping nginx
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if ! test_nginx_config; then
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log_end_msg 1 # Configuration error
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exit 0
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fi
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do_stop
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case "$?" in
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0|1)
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do_start
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case "$?" in
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0) log_end_msg 0 ;;
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1) log_end_msg 1 ;; # Old process is still running
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*) log_end_msg 1 ;; # Failed to start
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esac
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;;
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*)
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# Failed to stop
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log_end_msg 1
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;;
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esac
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;;
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reload|force-reload)
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log_daemon_msg "Reloading $DESC configuration" "$NAME"
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# Check configuration before reload nginx
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#
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# This is not entirely correct since the on-disk nginx binary
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# may differ from the in-memory one, but that's not common.
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# We prefer to check the configuration and return an error
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# to the administrator.
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if ! test_nginx_config; then
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log_end_msg 1 # Configuration error
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exit 0
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fi
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do_reload
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log_end_msg $?
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;;
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configtest|testconfig)
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log_daemon_msg "Testing $DESC configuration"
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test_nginx_config
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log_end_msg $?
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;;
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status)
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status_of_proc -p $PID "$DAEMON" "$NAME" && exit 0 || exit $?
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status_of_proc -p $PID "$DAEMON" "$NAME" && exit 0 || exit $?
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;;
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upgrade)
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log_daemon_msg "Upgrading binary" "$NAME"
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do_upgrade
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log_end_msg 0
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;;
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rotate)
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log_daemon_msg "Re-opening $DESC log files" "$NAME"
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do_rotate
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log_end_msg $?
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;;
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*)
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echo "Usage: $NAME {start|stop|restart|reload|force-reload|status|configtest|rotate|upgrade}" >&2
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exit 3
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;;
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esac
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:
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```
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`/etc/nginx/sites-enabled/default`の中身は以下のとおりです:
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```
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server {
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# allow access from localhost
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listen 80 reuseport backlog=1024;
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server_name test.kazu634.com;
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root /usr/share/nginx/html;
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index index.html index.htm;
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location / {
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gzip on;
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gzip_types text/css text/javascript;
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gzip_vary on;
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gzip_static always;
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gunzip on;
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try_files $uri $uri/ /index.html;
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}
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}
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# Denies the access without the pre-defined virtual host.
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server {
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listen 80 default_server;
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server_name _;
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return 444;
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}
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```
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## Let's Encyptを用いて証明書を取得する
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以下の手順で[Let's Encrypt](https://letsencrypt.org/)から証明書を取得します:
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```
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% git clone https://github.com/letsencrypt/letsencrypt
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% cd letsencrypt
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% ./letsencrypt-auto certonly --webroot -d test.kazu634.com --webroot-path /usr/share/nginx/html/
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```
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途中で以下のダイアログが表示されます。ひとつ目のダイアログではメールアドレスを入力します:
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<a data-flickr-embed="true" href="https://www.flickr.com/photos/42332031@N02/24290975906/in/dateposted/" title="1. tmux"><img src="https://farm2.staticflickr.com/1482/24290975906_26411cea6e_z.jpg" width="640" height="485" alt="1. tmux"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>
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次のダイアログでは`[Agree]`ボタンを押します:
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<a data-flickr-embed="true" href="https://www.flickr.com/photos/42332031@N02/24021542300/in/dateposted/" title="2. tmux"><img src="https://farm2.staticflickr.com/1609/24021542300_efacda5ea8_z.jpg" width="640" height="485" alt="2. tmux"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>
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すると以下のような注意書きが表示されます:
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```
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IMPORTANT NOTES:
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- If you lose your account credentials, you can recover through
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e-mails sent to simoom634@yahoo.co.jp.
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- Congratulations! Your certificate and chain have been saved at
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/etc/letsencrypt/live/test.kazu634.com/fullchain.pem. Your cert
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will expire on 2016-04-02. To obtain a new version of the
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certificate in the future, simply run Let's Encrypt again.
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- Your account credentials have been saved in your Let's Encrypt
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configuration directory at /etc/letsencrypt. You should make a
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secure backup of this folder now. This configuration directory will
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also contain certificates and private keys obtained by Let's
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Encrypt so making regular backups of this folder is ideal.
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- If you like Let's Encrypt, please consider supporting our work by:
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Donating to ISRG / Let's Encrypt: https://letsencrypt.org/donate
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Donating to EFF: https://eff.org/donate-le
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```
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これで終わりです:
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### Grade A+取得の道
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[Qualys SSL Labs](https://www.ssllabs.com/index.html)で評価A+を目指した軌跡です。基本は[nginx - 我々はどのようにして安全なHTTPS通信を提供すれば良いか - Qiita](http://qiita.com/harukasan/items/fe37f3bab8a5ca3f4f92)を参考にして設定しています。
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#### 暗号化スイートの選択
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以下のように設定しました:
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```
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ssl_protocols TLSv1.2 TLSv1.1 TLSv1;
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ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:DES-CBC3-SHA;
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ssl_prefer_server_ciphers on;
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```
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#### OCSP Staplingの設定
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以下のように設定しました:
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```
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ssl_stapling on;
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ssl_stapling_verify on;
|
|
resolver 8.8.4.4 8.8.8.8 valid=300s;
|
|
resolver_timeout 10s;
|
|
```
|
|
|
|
#### ssl_dhparam
|
|
以下のコマンドを実行し、`DH鍵交換`に使用する暗号化ファイルを作成しました:
|
|
|
|
```
|
|
% sudo openssl dhparam -out /etc/letsencrypt/live/test.kazu634.com/dhparams_4096.pem 4096
|
|
```
|
|
|
|
作成後以下のように設定を実施しました:
|
|
|
|
```
|
|
ssl_dhparam /etc/letsencrypt/live/test.kazu634.com/dhparams_4096.pem;
|
|
```
|
|
|
|
#### HTTP Strict Transport Security(HSTS)の付与
|
|
以下のように設定を行います:
|
|
|
|
```
|
|
# Enable HSTS (HTTP Strict Transport Security)
|
|
add_header Strict-Transport-Security "max-age=31536000; includeSubdomains; preload";
|
|
```
|
|
|
|
#### TLS Session Ticketsの有効化
|
|
以下のコマンドで鍵ファイルを作成します:
|
|
|
|
```
|
|
# openssl rand 48 > /etc/letsencrypt/live/test.kazu634.com/ticket.key
|
|
```
|
|
|
|
その後、以下のように設定を実施します:
|
|
|
|
```
|
|
ssl_session_tickets on;
|
|
ssl_session_ticket_key /etc/letsencrypt/live/test.kazu634.com/ticket.key;
|
|
```
|
|
|
|
#### 結論
|
|
まとめると、以下のような`nginx`の設定ファイルを作成します:
|
|
|
|
```
|
|
server {
|
|
# allow access from localhost
|
|
# listen 80 reuseport backlog=1024;
|
|
listen 443 ssl http2 backlog=1024;
|
|
server_name test.kazu634.com;
|
|
|
|
ssl_certificate /etc/letsencrypt/live/test.kazu634.com/fullchain.pem;
|
|
ssl_certificate_key /etc/letsencrypt/live/test.kazu634.com/privkey.pem;
|
|
ssl_dhparam /etc/letsencrypt/live/test.kazu634.com/dhparams_4096.pem;
|
|
|
|
ssl_session_cache shared:SSL:3m;
|
|
ssl_buffer_size 4k;
|
|
ssl_session_timeout 10m;
|
|
|
|
ssl_session_tickets on;
|
|
ssl_session_ticket_key /etc/letsencrypt/live/test.kazu634.com/ticket.key;
|
|
|
|
ssl_protocols TLSv1.2 TLSv1.1 TLSv1;
|
|
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:DES-CBC3-SHA;
|
|
ssl_prefer_server_ciphers on;
|
|
|
|
ssl_stapling on;
|
|
ssl_stapling_verify on;
|
|
resolver 8.8.4.4 8.8.8.8 valid=300s;
|
|
resolver_timeout 10s;
|
|
|
|
# Enable HSTS (HTTP Strict Transport Security)
|
|
add_header Strict-Transport-Security "max-age=31536000; includeSubdomains; preload";
|
|
|
|
root /var/www/blog_cache;
|
|
index index.html index.htm;
|
|
|
|
location / {
|
|
gzip on;
|
|
gzip_types text/css text/javascript;
|
|
gzip_vary on;
|
|
|
|
gzip_static always;
|
|
gunzip on;
|
|
|
|
try_files $uri $uri/ /index.html;
|
|
|
|
}
|
|
}
|
|
|
|
# Denies the access without the pre-defined virtual host.
|
|
server {
|
|
listen 80 default_server;
|
|
server_name _;
|
|
|
|
return 444;
|
|
}
|
|
```
|
|
|
|
<a data-flickr-embed="true" href="https://www.flickr.com/photos/42332031@N02/24021542270/in/dateposted/" title="SSL Server Test_ test.kazu634.com (Powered by Qualys SSL Labs)"><img src="https://farm2.staticflickr.com/1510/24021542270_0971890cc8_z.jpg" width="640" height="448" alt="SSL Server Test_ test.kazu634.com (Powered by Qualys SSL Labs)"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>
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|
|