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nginx – nginx：[emerg] bind()到[::]：80失败(98：地址已在使用中)

✥,

问题描述

突然间，我得到了以下nginx错误

 * Restarting nginx
 * Stopping nginx nginx
   ...done.
 * Starting nginx nginx
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] still could not bind()
   ...done.
   ...done.

如果我跑

lsof -i :80 or sudo fuser -k 80/tcp

我一无所获。 80端口没有任何东西

然后我运行以下：

sudo netstat -pan | grep ":80"
tcp        0      0 127.0.0.1:8070          0.0.0.0:*               LISTEN      15056/uwsgi     
tcp        0      0 10.170.35.97:39567      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39564      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39584      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39566      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39571      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39580      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39562      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39582      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39586      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39575      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39579      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39560      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39587      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39591      10.158.58.13:8080       TIME_WAIT   -               
tcp        0      0 10.170.35.97:39589      10.158.58.13:8080       TIME_WAIT   -

我很难过。

怎么调试？

我正在使用uwsgi

代理传递端口8070.uwsgi正在运行。 Nginx不是。我使用的是ubuntu 12.4

以下是我的nginx conf文件的相关部分

upstream uwsgi_frontend {
          server 127.0.0.1:8070;
        }
server {
listen 80;
        server_name 127.0.0.1;
        location = /favicon.ico {
                  log_not_found off;
                }



                location / {
                       include uwsgi_params;
                       uwsgi_buffering off;

                       uwsgi_pass 127.0.0.1:8070;
                 }
        }

这是我在ubuntu 12.04上安装nginx的方法

nginx=stable;add-apt-repository ppa:nginx/$nginx;
apt-get update
apt get install nginx-full

最佳解决方案

[::]:80是一个ipv6地址。

如果您的nginx配置正在侦听端口80以及端口[::]:80，则可能导致此错误。

我在默认的sites-available文件中有以下内容：

listen 80;
listen [::]:80 default_server;

您可以通过将ipv6only=on添加到[::]:80来解决此问题，如下所示：

listen 80;
listen [::]:80 ipv6only=on default_server;

有关更多信息，请参阅：

http://forum.linode.com/viewtopic.php?t=8580

http://wiki.nginx.org/HttpCoreModule#listen

次佳解决方案

我通过运行sudo apachectl stop来解决这个问题 – 结果是apache在后台运行并阻止nginx在所需的端口上启动。

在ubuntu上运行sudo /etc/init.d/apache2 stop

第三种解决方案

我发现了以前从未有过的问题。

我只需要删除/etc/nginx/sites-available/default。然后它奏效了。

我的conf在/etc/nginx/default。

第四种方案

我的情况不同，我不得不杀死运行Nginx重新启动它。

代替

sudo systemctl restart nginx

我不得不使用：

sudo pkill -f nginx
sudo systemctl start nginx

第五种方案

我也得到了同样的错误。

nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)

当我在浏览器中键入localhost时，我就得到了

It works!

这是此服务器的默认网页。

Web服务器软件正在运行，但尚未添加任何内容。而不是nginx欢迎页面，apache2在同一个端口上运行，

  1. 找到apache2 ports.conf文件

    sudo /etc/apache2/ports.conf

  2. 更改80以外的端口，我将其设为70

  3. 保存文件

  4. 重启你的系统

它也适用于您，如果您在浏览器中键入localhost，您将获得nginx欢迎页面

第六种方案

尝试执行此命令

sudo fuser -k 443/tcp
service nginx restart

第七种方案

我在letsencrypt(certbot)和nginx中遇到了同样的问题，

ref：https://github.com/certbot/certbot/issues/5486

此错误还没有解决方案

因此，更新了更新的cron(续订后重新加载)(使用certbot的建议)

-- in /etc/cron.d/certbot
from
0 */12 * * * root test -x /usr/bin/certbot -a \! -d /run/systemd/system && perl -e 'sleep int(rand(3600))' && certbot -q renew 
to
0 */12 * * * root test -x /usr/bin/certbot -a \! -d /run/systemd/system && perl -e 'sleep int(rand(3600))' && certbot -q renew --pre-hook "service nginx stop" --post-hook "service nginx start"

日志(短)：

-- in /var/log/syslog
Jun 10 00:14:25 localhost systemd[1]: Starting Certbot...
Jun 10 00:14:38 localhost certbot[22222]: nginx: [error] open() "/run/nginx.pid$
Jun 10 00:14:41 localhost certbot[22222]: Hook command "nginx" returned error c$
Jun 10 00:14:41 localhost certbot[22222]: Error output from nginx:
Jun 10 00:14:41 localhost certbot[22222]: nginx: [emerg] bind() to 0.0.0.0:443 $
Jun 10 00:14:41 localhost certbot[22222]: nginx: [emerg] bind() to 0.0.0.0:80 f$
Jun 10 00:14:41 localhost certbot[22222]: nginx: [emerg] bind() to 0.0.0.0:443 $
Jun 10 00:14:41 localhost certbot[22222]: nginx: [emerg] bind() to 0.0.0.0:80 f$
Jun 10 00:14:41 localhost certbot[22222]: nginx: [emerg] bind() to 0.0.0.0:443 $
Jun 10 00:14:41 localhost certbot[22222]: nginx: [emerg] bind() to 0.0.0.0:80 f$
Jun 10 00:14:41 localhost certbot[22222]: nginx: [emerg] bind() to 0.0.0.0:443 $
Jun 10 00:14:41 localhost certbot[22222]: nginx: [emerg] bind() to 0.0.0.0:80 f$
Jun 10 00:14:41 localhost certbot[22222]: nginx: [emerg] bind() to 0.0.0.0:443 $
Jun 10 00:14:41 localhost certbot[22222]: nginx: [emerg] bind() to 0.0.0.0:80 f$
Jun 10 00:14:41 localhost certbot[22222]: nginx: [emerg] still could not bind()
Jun 10 00:14:41 localhost systemd[1]: Started Certbot.


-- in /var/log/nginx/error.log
2018/06/10 00:14:27 [notice] 22233#22233: signal process started
2018/06/10 00:14:31 [notice] 22237#22237: signal process started
2018/06/10 00:14:33 [notice] 22240#22240: signal process started
2018/06/10 00:14:34 [notice] 22245#22245: signal process started
2018/06/10 00:14:38 [notice] 22255#22255: signal process started
2018/06/10 00:14:38 [error] 22255#22255: open() "/run/nginx.pid" failed (2: No $
2018/06/10 00:14:39 [emerg] 22261#22261: bind() to 0.0.0.0:443 failed (98: Addr$
2018/06/10 00:14:39 [emerg] 22261#22261: bind() to 0.0.0.0:80 failed (98: Addre$
2018/06/10 00:14:39 [emerg] 22261#22261: bind() to 0.0.0.0:443 failed (98: Addr$
2018/06/10 00:14:39 [emerg] 22261#22261: bind() to 0.0.0.0:80 failed (98: Addre$
2018/06/10 00:14:39 [emerg] 22261#22261: bind() to 0.0.0.0:443 failed (98: Addr$
2018/06/10 00:14:39 [emerg] 22261#22261: bind() to 0.0.0.0:80 failed (98: Addre$
2018/06/10 00:14:39 [emerg] 22261#22261: bind() to 0.0.0.0:443 failed (98: Addr$
2018/06/10 00:14:39 [emerg] 22261#22261: bind() to 0.0.0.0:80 failed (98: Addre$
2018/06/10 00:14:39 [emerg] 22261#22261: bind() to 0.0.0.0:443 failed (98: Addr$
2018/06/10 00:14:39 [emerg] 22261#22261: bind() to 0.0.0.0:80 failed (98: Addre$
2018/06/10 00:14:39 [emerg] 22261#22261: still could not bind()

第八种方案

我的问题是我有重叠的监听指令。我已经设法通过运行找出重叠的指令

grep -r listen /etc/nginx/*

两个文件正在同一个端口上侦听：

/etc/nginx/conf.d/default.conf:           listen 80;  
/etc/nginx/sites-enabled/default.conf:    listen 80;

参考资料

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