[Koha] Elasticsearch works in the server but we can not search from OPAC and intranet

[Mengu Yazicioglu]

Hi all,

I'm trying to move from Zebra to Elasticsearch on live products.

I have to finish all before to come to KohaCon, so with any help you 
give I'll be so close to come Helsinki ;)

Debian 11.7

Koha 22.11.05

Elasticsearch 7.17.11

I've seen that my elasticsearch indices established and ES is working, 
though I'm not sure whether yellow open says something wrong below

green  open .geoip_databases              1 0     42 0    40mb 40mb
yellow open koha_devinimkoha_authorities  5 1 112921 0  62.8mb 62.8mb
yellow open koha_devinimkoha_biblios      5 1  67342 0 121.7mb 121.7mb

I can also query data from command line, but I cannot see anything from 
OPAC and intranet.

I've already changed SearchEngine parameter from adminstration to ES.

Do we need to change the network.host parameter to  some IP in the file 
elasticsearch.yml or Koha and ES communicate through localhost?

Does anyone have an idea? I really do not know what I should look at 
somewhere else.

Thanks.

-- 
Mengü Yazıcıoğlu
Devinim