Oh, I see.
Sorry, I kept saying “2.6” by mistake but it’s actually
http://graylog2-releases.s3.amazonaws.com/graylog-omnibus/ova/graylog-2.4.6-1.ova[...]
where I got the install file.
From the https://packages.graylog2.org/appliances/ova site 
Oh, I see.
Sorry, I kept saying “2.6” by mistake but it’s actually
http://graylog2-releases.s3.amazonaws.com/graylog-omnibus/ova/graylog-2.4.6-1.ova[...]
where I got the install file.
From the https://packages.graylog2.org/appliances/ova site