Nginx lauscht auf port 80 oder 443, aber nicht antwortet

Meinem server funktionierte sehr gut, bis paar Stunden, wenn es irgendwie aufgehört Beantwortung Anrufe,

Ich dachte mir, dass das Einhorn ist in Ordnung (curl localhost:3000 arbeitet - wo 3000 ist der Hafen von unicorn)

Ich ran:

sudo netstat -anltp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN      5664/mysqld     
tcp        0      0 my.public.ip.address:80        0.0.0.0:*               LISTEN      6825/nginx      
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      2737/sshd       
tcp        0      0 0.0.0.0:3000            0.0.0.0:*               LISTEN      6389/unicorn.rb -E 
tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN      2934/master     
tcp        0      0 my.public.ip.address:443       0.0.0.0:*               LISTEN      6825/nginx      
tcp        0      0 my.public.ip.address:22        a.different.ip.number:49372      ESTABLISHED 3433/sshd: user
tcp        0    232 my.public.ip.address:22        a.different.ip.number:49909      ESTABLISHED 6887/sshd: user
tcp6       0      0 :::22                   :::*                    LISTEN      2737/sshd       
tcp6       0      0 :::25                   :::*                    LISTEN      2934/master     

wo es scheint, dass sowohl port 80 und 443 sind offen von nginx, aber wenn ich versuche, curl localhost:

$ curl localhost
curl: (7) Failed connect to localhost:80; Connection refused
$ curl https://localhost
curl: (7) Failed connect to localhost:443; Connection refused

den port 22 verwendet ssh scheint einwandfrei zu funktionieren. als ich angemeldet bin auf die box über ssh:

dies ist mein /etc/nginx/nginx.conf Datei:

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

events {
    worker_connections 768;
    # multi_accept on;
}

http {

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    access_log /var/log/app/nginx_access.log;
    error_log  /var/log/app/nginx_error.log;

    gzip on;
    gzip_disable "msie6";

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
}

hier ist mein /etc/nginx/sites-enabled/app Datei:

upstream unicorn {
  server 0.0.0.0:3000 fail_timeout=0;
}

server {
  listen my.ip.num.ber:80;
  server_name www.mydomainname.com;

  location /{
    rewrite ^ https://$server_name$request_uri permanent;
  }
}

server {
  listen my.ip.num.ber:443 ssl;
  server_name www.mydomainname.com;

  client_max_body_size 4G;
  keepalive_timeout 5;

  root /var/www/mydomainname/releases/20140417140248/public/;

  try_files $uri $uri/index.html $uri.html @unicorn;

  ssl_certificate      /srv/ssl/mydomainname.chained.crt;
  ssl_certificate_key  /srv/ssl/mydomainname.key;

  ssl_session_timeout  5m;

  ssl_protocols  SSLv2 SSLv3 TLSv1;
  ssl_ciphers  HIGH:!aNULL:!MD5;
  ssl_prefer_server_ciphers   on;


  location /assets/{
    gzip_static on;
    expires max;
    add_header Cache-Control public;
    # alias /var/www/mydomainname/releases/20140417140248/public/;
  }


  location @unicorn {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_intercept_errors on;

    proxy_pass http://unicorn;
  }

}

aus einem scan mit nmap sehe ich:

$ sudo nmap -sS -O 127.0.0.1

Starting Nmap 6.40 ( http://nmap.org ) at 2014-04-17 14:44 UTC
Nmap scan report for localhost (127.0.0.1)
Host is up (0.000062s latency).
Not shown: 996 closed ports
PORT     STATE SERVICE
22/tcp   open  ssh
25/tcp   open  smtp
3000/tcp open  ppp
3306/tcp open  mysql
No exact OS matches for host (If you know what OS is running on it, see http://nmap.org/submit/).
TCP/IP fingerprint:
OS:SCAN(V=6.40%E=4%D=4/17%OT=22%CT=1%CU=30717%PV=N%DS=0%DC=L%G=Y%TM=534FE8C
OS:8%P=x86_64-unknown-linux-gnu)SEQ(SP=107%GCD=1%ISR=10B%TI=Z%CI=I%II=I%TS=
OS:8)OPS(O1=MFFD7ST11NW7%O2=MFFD7ST11NW7%O3=MFFD7NNT11NW7%O4=MFFD7ST11NW7%O
OS:5=MFFD7ST11NW7%O6=MFFD7ST11)WIN(W1=AAAA%W2=AAAA%W3=AAAA%W4=AAAA%W5=AAAA%
OS:W6=AAAA)ECN(R=Y%DF=Y%T=40%W=AAAA%O=MFFD7NNSNW7%CC=Y%Q=)T1(R=Y%DF=Y%T=40%
OS:S=O%A=S+%F=AS%RD=0%Q=)T2(R=N)T3(R=N)T4(R=Y%DF=Y%T=40%W=0%S=A%A=Z%F=R%O=%
OS:RD=0%Q=)T5(R=Y%DF=Y%T=40%W=0%S=Z%A=S+%F=AR%O=%RD=0%Q=)T6(R=Y%DF=Y%T=40%W
OS:=0%S=A%A=Z%F=R%O=%RD=0%Q=)T7(R=Y%DF=Y%T=40%W=0%S=Z%A=S+%F=AR%O=%RD=0%Q=)
OS:U1(R=Y%DF=N%T=40%IPL=164%UN=0%RIPL=G%RID=G%RIPCK=G%RUCK=G%RUD=G)IE(R=Y%D
OS:FI=N%T=40%CD=S)

Network Distance: 0 hops

OS detection performed. Please report any incorrect results at http://nmap.org/submit/.
Nmap done: 1 IP address (1 host up) scanned in 12.27 seconds

irgendwelche Hinweise?

Dank

Zusatz:

nach dem Neustart mit nginx konfiguriert mit listen 80 und listen 443, hier ist meine neue netstat:

sudo netstat -ntulp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN      5664/mysqld     
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      7845/nginx      
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      2737/sshd       
tcp        0      0 0.0.0.0:3000            0.0.0.0:*               LISTEN      6389/unicorn.rb -E 
tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN      2934/master     
tcp        0      0 0.0.0.0:443             0.0.0.0:*               LISTEN      7845/nginx      
tcp6       0      0 :::22                   :::*                    LISTEN      2737/sshd       
tcp6       0      0 :::25                   :::*                    LISTEN      2934/master     
udp        0      0 0.0.0.0:57284           0.0.0.0:*                           2418/dhclient   
udp        0      0 0.0.0.0:68              0.0.0.0:*                           2418/dhclient   
udp        0      0 my.public.ip.addr:123       0.0.0.0:*                           3550/ntpd       
udp        0      0 127.0.0.1:123           0.0.0.0:*                           3550/ntpd       
udp        0      0 0.0.0.0:123             0.0.0.0:*                           3550/ntpd       
udp6       0      0 :::55187                :::*                                2418/dhclient   
udp6       0      0 ::1:123                 :::*                                3550/ntpd       
udp6       0      0 :::123                  :::*                                3550/ntpd  

InformationsquelleAutor don giulio | 2014-04-17

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