Cant start apache2 after a reboot

Having spent some time on this it seems that the Apache documentation could be misleading, although I may have missed something. It says IPv6 addresses must be enclosed in square brackets. This is true for non link-local addresses. But I have now discovered that link-local addresses can be used, and must include a scope id, but without the square brackets. See below:

Apache documentation:

$ wget -q -O- https://httpd.apache.org/docs/2.4/bind.html | grep -Pao "(?<=p.)IPv6[ a-z]+"
IPv6 addresses must be enclosed in square brackets

My configuration:

$ grep -R ^Listen /etc/httpd/conf/
/etc/httpd/conf/httpd.conf:Listen fe80::a00:16ff:fe89:420f%3:80
/etc/httpd/conf/extra/httpd-ssl.conf:Listen fe80::a00:16ff:fe89:420f%net1:443

As you can see, I've used the interface id for the scope id with port 80, and the interface name for the scope id with port 443. This is just to show that either the interface id or name can successfully be used as the scope id.

Results:

$ sudo netstat -pant | grep -i httpd
tcp6   0    0 fe80::a00:16ff:fe89::80 :::*  LISTEN   709/httpd
tcp6   0    0 fe80::a00:16ff:fe89:443 :::*  LISTEN   709/httpd

Do not use when defining your virtual hosts, as it can cause issues from my experience.

Listen 80
<VirtualHost *:80>

would fix your issue.