Forum

1. Using Hiawatha 10.1 and 10.2
2. Create '/var/run/letsencrypt/.well-known/acme-challenge'
3. Add 'index.html' in '/var/run/letsencrypt/.well-known' and '/var/run/letsencrypt/.well-known/acme-challenge' with 'Hi' content
4. Add Alias and UseDirectory:

Directory {
	DirectoryID = well_known
	Path = /.well-known
	AccessList = allow all
}
VirtualHost {
	Hostname = xl1.mratwork.com, www.xl1.mratwork.com, *.xl1.mratwork.com
	...
	Alias = /.well-known:/var/run/letsencrypt/.well-known
	UseDirectory = well_known
	AllowDotFiles = yes
	...
}

The same way for step 4 for:

1. Apache

<VirtualHost *:80 >
	ServerName xl1.mratwork.com
	ServerAlias www.xl1.mratwork.com *.xl1.mratwork.com
	...
	Alias "/.well-known/" "/var/run/letsencrypt/.well-known/"

	<Directory "/var/run/letsencrypt/.well-known/">
		AllowOverride None
		Options None
		<IfVersion >= 2.4>
			Require all granted
		</IfVersion>
		<IfVersion < 2.4>
			Order allow,deny
			Allow from all
		</IfVersion>
	</Directory>
	...
</VirtualHost>

2. Nginx

server {
	server_name xl1.mratwork.com www.xl1.mratwork.com *.xl1.mratwork.com;
	...
	location /.well-known/ {
		alias /var/run/letsencrypt/.well-known/;
		allow all;
	}
	...
}

3. Lighttpd

$HTTP["host"] =~ "(?:^|\.)xl1\.mratwork\.com$" {
	...
	$HTTP["url"] =~ "^/.well-known/" {

		#server.document-root = "/var/run/letsencrypt/"
		alias.url += ( "/.well-known/" => "/var/run/letsencrypt/.well-known/" )
		#dir-listing.activate = "enable"
		url.access-deny = ( "disable" )

		index-file.names = ( "index.html" )

	}
	...
}

So, access to 'http://xl1.mratwork.com/.well-known/acme-challenge' (or 'http://xl1.mratwork.com/.well-known/acme-challenge/index.html') will be appear 'file not found' for hiawatha but 'Hi' with other (lighttpd, nginx and apache).

The same result for access to 'http://xl1.mratwork.com/.well-known'.

Look like OK using 10.2 with latest compile.