Nginxウェブサーバーを保護するためのヒントとコツ

apt-get install nginx -y

systemctl status nginx

? nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
   Active: active (running) since Sun 2019-03-10 02:43:14 UTC; 4min 40s ago
     Docs: man:nginx(8)
  Process: 2271 ExecStop=/sbin/start-stop-daemon --quiet --stop --retry QUIT/5 --pidfile /run/nginx.pid (code=exited, status=0/SUCCESS)
  Process: 2281 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
  Process: 2274 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
 Main PID: 2285 (nginx)
    Tasks: 2 (limit: 1111)
   CGroup: /system.slice/nginx.service
           ??2285 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;
           ??2290 nginx: worker process

Mar 10 02:43:14 ubuntu1804 systemd[1]: Starting A high performance web server and a reverse proxy server...
Mar 10 02:43:14 ubuntu1804 systemd[1]: nginx.service: Failed to parse PID from file /run/nginx.pid: Invalid argument
Mar 10 02:43:14 ubuntu1804 systemd[1]: Started A high performance web server and a reverse proxy server.

apt-get update -y  
apt-get install nginx --reinstall -y

curl -I http://localhost

HTTP/1.1 200 OK
Server: nginx/1.14.0 (Ubuntu)
Date: Sat, 09 Mar 2019 15:28:01 GMT
Content-Type: text/html
Content-Length: 10918
Last-Modified: Fri, 01 Feb 2019 16:05:17 GMT
Connection: keep-alive
ETag: "5c546e3d-2aa6"
Accept-Ranges: bytes

nano /etc/nginx/nginx.conf

http {

        ##
        # Basic Settings
        ##
        server_tokens off;

systemctl restart nginx

curl -I http://localhost

HTTP/1.1 200 OK
Server: nginx
Date: Sat, 09 Mar 2019 15:33:31 GMT
Content-Type: text/html
Content-Length: 10918
Last-Modified: Fri, 01 Feb 2019 16:05:17 GMT
Connection: keep-alive
ETag: "5c546e3d-2aa6"
Accept-Ranges: bytes

nano /etc/nginx/sites-enabled/default

server {
        listen 80 default_server;
        listen [::]:80 default_server;

    allow 172.16.0.0/16;
    deny  all;

systemctl restart nginx

tail -f /var/log/nginx/error.log

2019/03/09 16:13:01 [error] 11589#11589: *1 access forbidden by rule, client: 192.168.0.102, server: _, request: "GET /test/ HTTP/1.1", host: "172.16.0.122"

mkdir /etc/nginx/ssl/

cd /etc/nginx/ssl/

openssl genrsa -aes256 -out nginx.key 1024

Generating RSA private key, 1024 bit long modulus
...++++++
.............................++++++
e is 65537 (0x010001)
Enter pass phrase for nginx.key:
Verifying - Enter pass phrase for nginx.key:

openssl req -new -key nginx.key -out nginx.csr

Generating RSA private key, 1024 bit long modulus
...++++++
.............................++++++
e is 65537 (0x010001)
Enter pass phrase for nginx.key:
Verifying - Enter pass phrase for nginx.key:
root@ubuntu1804:~# openssl req -new -key nginx.key -out nginx.csr
Enter pass phrase for nginx.key:
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]:IN
State or Province Name (full name) [Some-State]:Gujarat
Locality Name (eg, city) []:Junagadh
Organization Name (eg, company) [Internet Widgits Pty Ltd]:IT
Organizational Unit Name (eg, section) []:IT
Common Name (e.g. server FQDN or YOUR name) []:HITESH
Email Address []:[email protected]

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:admin
An optional company name []:IT

openssl x509 -req -days 365 -in nginx.csr -signkey nginx.key -out nginx.crt

Signature ok
subject=C = IN, ST = Gujarat, L = Junagadh, O = IT, OU = IT, CN = HITESH, emailAddress = [email protected]
Getting Private key
Enter pass phrase for nginx.key:

nano /etc/nginx/sites-enabled/default

server {
        listen 192.168.0.100:443 ssl;
        root /var/www/html;
        index index.html index.htm index.nginx-debian.html;
        server_name _;
        ssl_certificate /etc/nginx/ssl/nginx.crt;
        ssl_certificate_key /etc/nginx/ssl/nginx.key;
        ssl_protocols       TLSv1 TLSv1.1 TLSv1.2;

systemctl restart nginx

mkdir /etc/nginx/.htpasswd  
htpasswd -c /etc/nginx/.htpasswd/passwd admin

New password: 
Re-type new password: 
Adding password for user admin

mkdir /var/www/html/test

chown -R www-data:www-data /var/www/html/test

nano /etc/nginx/sites-enabled/default

        location /test {

    auth_basic  "Restricted";
    auth_basic_user_file   /etc/nginx/.htpasswd/passwd;

systemctl restart nginx