NextCloud instance making strange network connections - is this expected?

Nextcloud version (eg, 18.0.2):
Operating system and version (eg, Ubuntu 18.04):
nginx version 1.14
PHP version 7.4

Hello Everyone,

I am pretty new to NextCloud. I installed new instance yesterday on Ubuntu 18.04. So far its working great. Today i configured a backup and while i was testing connection to my NAS (where backup will be copied) i noticed that nextcloud was talking to some strange IP’s. Some of them are in Italy.

When i ran netstat -cpat or iftop i noticed that is connecting to few strange IP addresses. Is this normal or expected?

nextcloud                                    => _gateway                                        0b   3.23Kb  2.41Kb
                                             <=                                                 0b    312b    476b
nextcloud                                    => host45-112-static.97-5-b.business.telecomit   176b     35b      9b
                                             <=                                               320b     64b     16b
nextcloud                                    => host14-39-61-217.static.dns-aruba.cloud       176b     35b     53b
                                             <=                                                 0b      0b      8b
nextcloud                                    => host24-39-61-217.static.dns-aruba.cloud       176b     35b     53b
                                             <=                                                 0b      0b      8b
nextcloud                                    => resolver1.opendns.com                           0b      0b     98b
                                             <=                                                 0b      0b    167b
nextcloud                                    => host-5-97-112-112.business.telecomitalia.it     0b      0b      9b
                                             <=                                                 0b      0b     16b
nextcloud                                    => host-5-97-112-166.business.telecomitalia.it     0b      0b      9b
                                             <=                                                 0b      0b     16b
nextcloud                                    => host-5-97-112-169.business.telecomitalia.it     0b      0b      9b
                                             <=                                                 0b      0b     16b
nextcloud                                    => host186-112-static.97-5-b.business.telecomi     0b      0b      9b
                                             <=                                                 0b      0b     16b
nextcloud                                    => host25-39-61-217.static.dns-aruba.cloud         0b      0b      9b
                                             <=                                                 0b      0b      0b
nextcloud                                    => host-5-97-112-224.business.telecomitalia.it     0b      0b      9b
                                             <=                                                 0b      0b      0b

netstat output:

tcp        0      0 nextcloud:https         5.97.112.247:16543      SYN_RECV    -
tcp        0      0 nextcloud:http          5.97.112.254:11340      SYN_RECV    -
tcp        0      0 nextcloud:http          5.97.112.232:50547      SYN_RECV    -
tcp        0      0 nextcloud:https         217.61.47.18:22498      SYN_RECV    -
tcp        0      0 nextcloud:https         217.61.47.1:33951       SYN_RECV    -
tcp        0      0 nextcloud:http          217.61.39.7:pipe-server SYN_RECV    -
tcp        0      0 nextcloud:http          217.61.46.15:19636      SYN_RECV    -
tcp        0      0 nextcloud:https         217.61.39.10:30511      SYN_RECV    -
tcp        0      0 nextcloud:https         _gateway:50746          TIME_WAIT   -
tcp        0      0 nextcloud:http          217.61.47.0:2941        SYN_RECV    -
tcp        0      0 localhost:57110         localhost:6379          TIME_WAIT   -
tcp        0      0 localhost:57118         localhost:6379          TIME_WAIT   -  

IP’s that worry me are 5.97.112.232 or 217.61.39.10. Any idea if this is expected or how to find out what is causing it?

Thanks in advance!