Nginx – geekdecoder

Nginx fails to start when Centos/Plesk migrated to Azure

June 15, 2018June 15, 2018 by The Geek Decoder

There is a small issue where a Plesk/CentOS 7 system is migrated to Azure and nginx fails to start.
This is the error in the nginx log


# cat /var/log/nginx/error.log
2018/06/14 22:11:41 [emerg] 9341#0: bind() to 10.144.114.11:443 failed (99: Cannot assign requested address)

If so then to edit:


# /etc/sysctl.conf

And add:


# net.ipv4.ip_nonlocal_bind = 1

Then Run:


# sysctl -p /etc/sysctl.conf

start Nginx:


#service nginx start

Install Nginx CentOS 7

April 22, 2018September 14, 2017 by The Geek Decoder

Stop apache if running:

# systemctl stop httpd

Install epel if not installed:

# yum install epel-release

# yum install nginx

# systemctl enable nginx

# systemctl start nginx

Nginx Error bind() to [::]:80 failed (98: Address already in use)

September 11, 2015September 11, 2015 by The Geek Decoder

Site is being load balanced and you get this error is different locations:

It works!

This is the default web page for this server.

The web server software is running but no content has been added, yet.

This is using apache vs Nginx.

Restart nginx fails:

root@web2:/var/log/nginx# tail -f error.log
2015/09/11 01:00:13 [emerg] 5190#5190: bind() to [::]:80 failed (98: Address already in use)
2015/09/11 01:00:13 [emerg] 5190#5190: bind() to 0.0.0.0:80 failed (98: Address already in use)

Then it means nginx or some other process is already using port 80.

You can kill it using:


# sudo fuser -k 80/tcp

And then try restarting nginx again:


# service nginx start

502 Errors on Plesk

August 22, 2015May 4, 2015 by The Geek Decoder

Getting 502 Errors on plesk

Try and disable nginx and re-configure your apache configuration to see if it will correct the errors nginx is showing.

To disable nginx, issue :


# /usr/local/psa/admin/bin/nginxmng -d

To reconfigure your apache configuration issue :


# /usr/local/psa/admin/bin/httpdmng --reconfigure-all

Stop Nginx on Plesk

August 22, 2015February 13, 2015 by The Geek Decoder

# /usr/local/psa/admin/bin/nginxmng -d

nginx: [emerg] bind() to 68.xx.xx.xx:443 failed (99: Cannot assign requested address)

August 22, 2015January 24, 2015 by The Geek Decoder

Apache is listening on port 7080. This usually means the server is running nginx on port 80 and forwarding script calls to apache. Restarting nginx and received the following error:

Starting nginx: nginx: [emerg] bind() to 68.xx.xx.xx:443 failed (99: Cannot assign requested address)

Run the following command to disable nginx and rebuild the apache configuration to use port 80:


# /usr/local/psa/admin/bin/nginxmng -d

You can enable nginx again if needed by running:


# /usr/local/psa/admin/bin/nginxmng -e

Nginx error

August 22, 2015December 8, 2014 by The Geek Decoder

nginx: [emerg] bind() to 68.168.98.181:443 failed (99: Cannot assign requested address)
nginx: configuration file /etc/nginx/nginx.conf test failed

You can disable nginx which should force the configuration to rebuild:

/usr/local/psa/admin/bin/nginxmgr -d

You can also try the steps below:

http://kb.sp.parallels.com/en/114245

If you get the error:

Apache config (14180811290.93120100) generation failed: Template_Exception: nginx: [emerg] bind() to 68.168.98.181:80 failed (99: Cannot assign requested address)

Re-read the IP’s in plesk. Then try again.