用途として、Apacheを起動したままで、Kibana用にNginxを使いたいです。
EC2,ELB環境にNginxをインストールして、起動したのですが、
sudo vi /etc/nginx/conf.d/virtual.conf

server {
  listen                *:10080 ;

  server_name           localhost;
  access_log            /var/log/nginx/kibana.access.log;

  location /kibana/ {
    root  /usr/share/nginx/html;
    index  index.html  index.htm;
  }

  location / {
    proxy_pass http://127.0.0.1:9200;
    proxy_read_timeout 90;
  }
}

sudo service nginx start

Starting nginx: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address    already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] still could not bind()

というエラーがでてきます。

sudo lsof -i:80

で調べると、

COMMAND  PID   USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
httpd   2456   root    4u  IPv6  10447      0t0  TCP *:http (LISTEN)
httpd   2535 apache    4u  IPv6  10447      0t0  TCP *:http (LISTEN)
httpd   2536 apache    4u  IPv6  10447      0t0  TCP *:http (LISTEN)
httpd   2536 apache    9u  IPv6  13343      0t0  TCP ip-111-11-11-111.ap-northeast-1.compute.internal:http->ip-111-11-11-11.ap-northeast-1.compute.internal:54275 (ESTABLISHED)
httpd   2537 apache    4u  IPv6  10447      0t0  TCP *:http (LISTEN)
httpd   2538 apache    4u  IPv6  10447      0t0  TCP *:http (LISTEN)
httpd   2538 apache    9u  IPv6  13342      0t0  TCP ip-111-11-11-111.ap-northeast-1.compute.internal:http->ip-222-22-22-222.ap-northeast-1.compute.internal:39934 (ESTABLISHED)
httpd   2539 apache    4u  IPv6  10447      0t0  TCP *:http (LISTEN)
httpd   2588 apache    4u  IPv6  10447      0t0  TCP *:http (LISTEN)
httpd   2589 apache    4u  IPv6  10447      0t0  TCP *:http (LISTEN)
httpd   2590 apache    4u  IPv6  10447      0t0  TCP *:http (LISTEN)
httpd   2701 apache    4u  IPv6  10447      0t0  TCP *:http (LISTEN)

とでますが、Nginxのが使われていなく、どれをkillしたらいいのかわからないです。
httpdを止めて、nginxを起動すると成功するんですが、ELBでout of service になってしまいます。