Can't restart nginx, bind() failed (98: Address already in use)
I know this topic exists in various different forms, but I'm having trouble solving my problem. If I run service nginx restart, nginx fails with the following log:
2015/03/14 08:36:42 [emerg] 9400#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2015/03/14 08:36:42 [emerg] 9400#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2015/03/14 08:36:42 [emerg] 9400#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2015/03/14 08:36:42 [emerg] 9400#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2015/03/14 08:36:42 [emerg] 9400#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2015/03/14 08:36:42 [emerg] 9400#0: still could not bind()
I only have one config loading in sites-enabled. When I run:
$ grep -slir "listen 80"
$ sites-available/default
It shows that the default config has listen 80, but that shouldn't matter since it's not in sites-enabled.
$ ps ax -o pid,ppid,%cpu,vsz,wchan,command|egrep '(nginx|PID)'
PID PPID %CPU VSZ WCHAN COMMAND
9468 1 0.0 97188 sigsus nginx: master process /usr/sbin/nginx
9471 9468 0.0 97328 ep_pol nginx: worker process
9472 9468 0.0 97368 ep_pol nginx: worker process
9693 9641 0.0 9448 pipe_w egrep --color=auto (nginx|PID)
Here's a netstat showing what ports are being used:
$ netstat -tulpn
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 1300/master
tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 9468/nginx
tcp 0 0 0.0.0.0:2812 0.0.0.0:* LISTEN 5980/monit
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 1174/mysqld
tcp 0 0 127.0.0.1:11211 0.0.0.0:* LISTEN 1155/memcached
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 9468/nginx
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1113/sshd
tcp6 0 0 :::25 :::* LISTEN 1300/master
tcp6 0 0 :::9000 :::* LISTEN 9106/hhvm
tcp6 0 0 :::22 :::* LISTEN 1113/sshd
udp 0 0 127.0.0.1:11211 0.0.0.0:* 1155/memcached
And here is my complete config in sites-enabled (the only one in there):
server {
listen 443 ssl default_server;
limit_conn gulag 15;
server_name www.my-website.com;
access_log /home/my-website/logs/access.log;
error_log /home/my-website/logs/error.log info;
root /home/my-website/web;
index index.php index.html;
ssl_certificate /etc/nginx/ssl/my-website.com.chained.crt;
ssl_certificate_key /etc/nginx/ssl/my-website.com.key;
ssl_prefer_server_ciphers On;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS;
include /etc/nginx/includes/my-website_redirects_https.inc;
include /etc/nginx/includes/file_cache.inc;
include /etc/nginx/includes/wordpress.inc;
}
server {
listen 80;
server_name my-website.com www.my-website.com;
return 301 https://$server_name$request_uri;
}
server {
listen 443;
server_name my-website.com;
return 301 https://www.$server_name$request_uri;
}
server {
server_name
some-other-website1.com www.some-other-website1.com
some-other-website2.com www.some-other-website2.com
some-other-website3.com www.some-other-website3.com
some-other-website4.com www.some-other-website4.com
some-other-website5.com www.some-other-website5.com
rewrite ^(.*)$ https://www.my-website.com/some/page/ permanent;
}
server {
server_name
some-other-website6.com www.some-other-website6.com
some-other-website7.com www.some-other-website7.com
some-other-website8.com www.some-other-website8.com
rewrite ^(.*)$ https://www.my-website.com/some/other/page/ permanent;
}
server {
server_name subdomain.my-website.com;
rewrite ^(.*)$ https://some.otherwebsite.com/ permanent;
}
server {
server_name
some-other-website9.com www.some-other-website9.com
some-other-website10.com www.some-other-website10.com
some-other-website11.com www.some-other-website11.com
rewrite ^(.*)$ https://www.my-website.com/ permanent;
}
I'm wondering if this bind() error is happening because of my config. Any ideas what I might be doing wrong? I'm using nginx/1.4.6 (Ubuntu). Any help would be greatly appreciated.
Solution 1:
Try stopping nginx:
service nginx stop
Check the nginx still running:
ps ax | grep nginx
And if still running, kill the process:
kill -p PID
Check nginx status, will not run:
ps ax | grep nginx
And then do a clean-start:
service nginx start
This worked for me after same issue.
Solution 2:
I had a similar issue.
This is what worked for me:sudo fuser -k 80/tcp
then:service nginx restart
I dunno the cause, but my answer was found here: https://easyengine.io/tutorials/nginx/troubleshooting/emerg-bind-failed-98-address-already-in-use/
Also, here is the backstory of how/when this error message showed up: https://serverfault.com/a/939888/399723
Solution 3:
According to your netstat output, nginx itself is still running on port 80.
Before you try to restart it, validate your configuration with nginx -t and fix the errors.
Solution 4:
I'm probably the only one dumb enough to make this mistake, but I accidentally downloaded the wrong package (php instead of php-fpm), which installed Apache 2 as a dependency. Since it was running on port 80, Nginx couldn't.
Probably not a very common mistake, but I guess the takeaway is to check if you accidentally have anything else on port 80.