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Today, when deploying the environment, an error occurred when restarting Apache

root@spwh :/mnt# service apache2 restart
* Restarting web server apache2 AH00557: apache2: apr_ sockaddr_ info_ get() failed for spwh
AH00558: apache2: Could not reliably determine the server’s fully qualified domain name, using 127.0.0.1. Set the ‘ServerName’ directive globally to suppress this message
[ OK ]

Although it does not affect the use, but obsessive-compulsive disorder, uncomfortable

Checked/etc/hosts

Normal

Checked the configuration file for the domain name

Normal

Finally, the problem was found out

vi /etc/apache2/apache2.conf

Add a line to the document

Servername IPAddress (own IP address)

Save, exit and restart Apache

It’s normal