Elasticsearch showing received plaintext http traffic on an https channel - linux

Question

I am try learning service in linux and i install the elasticsearch, but it seems its not work when typing the command "sudo service elasticsearch restart. the website just show " the connect is reset" after browsing the "http://localhost:9200/".It seems that the connection is blocked.It just wondering is the problem on the ssl?I have try to use https
it gives:
{"error":{"root_cause":[{"type":"security_exception","reason":"unable to authenticate user [] for REST request [/]","header":{"WWW-Authenticate":["Basic realm=\"security\" charset=\"UTF-8\"","Bearer realm=\"security\"","ApiKey"]}}],"type":"security_exception","reason":"unable to authenticate user [] for REST request [/]","header":{"WWW-Authenticate":["Basic realm=\"security\" charset=\"UTF-8\"","Bearer realm=\"security\"","ApiKey"]}},"status":401}
".
and inaddition when i run the " curl " http://google.com:443",it shows
"curl: (52) Empty reply from server"
elastic.log:
[2022-12-01T02:51:22,944][WARN ][o.e.x.s.t.n.SecurityNetty4HttpServerTransport] [alex-VirtualBox] received plaintext http traffic on an https channel, closing connection Netty4HttpChannel{localAddress=/127.0.0.1:9200, remoteAddress=/127.0.0.1:54614}
elasticsearch.yml:
# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
# Before you set out to tweak and tune the configuration, make sure you
# understand what are you trying to accomplish and the consequences.
#
# The primary way of configuring a node is via this file. This template lists
# the most important settings you may want to configure for a production cluster.
#
# Please consult the documentation for further information on configuration options:
# https://www.elastic.co/guide/en/elasticsearch/reference/index.html
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
#cluster.name: my-application
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:#
#node.name: node-1
#
# Add custom attributes to the node:
#
#node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
path.data: /var/lib/elasticsearch
#
# Path to log files:
#
path.logs: /var/log/elasticsearch
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
#bootstrap.memory_lock: true
#
# Make sure that the heap size is set to about half the memory available
# on the system and that the owner of the process is allowed to use this
# limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# By default Elasticsearch is only accessible on localhost. Set a different
# address here to expose this node on the network:
#
network.host: localhost
#
# By default Elasticsearch listens for HTTP traffic on the first free port it
# finds starting at 9200. Set a specific HTTP port here:
When typing the systemctl status elasticsearch.service,it seems work fine:
systemctl status elasticsearch.service
● elasticsearch.service - Elasticsearch
Loaded: loaded (/lib/systemd/system/elasticsearch.service; enabled; vendor preset: enabl>
Active: active (running) since Thu 2022-12-01 02:49:56 HKT; 10s ago
Docs: https://www.elastic.co
Main PID: 11238 (java)
Tasks: 79 (limit: 1783)
Memory: 780.9M
CPU: 20.908s
CGroup: /system.slice/elasticsearch.service
├─11238 /usr/share/elasticsearch/jdk/bin/java -Xms4m -Xmx64m -XX:+UseSerialGC -D>
├─11297 /usr/share/elasticsearch/jdk/bin/java -Des.networkaddress.cache.ttl=60 ->
└─11318 /usr/share/elasticsearch/modules/x-pack-ml/platform/linux-x86_64/bin/con>
System.log(seems not very useful):
Dec 1 02:54:54 alex-VirtualBox kernel: [12786.591861] [UFW BLOCK] IN=enp0s3 OUT= MAC=08:00:27:55:db:e2:52:54:00:12:35:02:08:00 SRC=10.0.2.2 DST=10.0.2.15 LEN=40 TOS=0x00 PREC=0x00 TTL=64 ID=5926 PROTO=TCP SPT=443 DPT=40826 WINDOW=65535 RES=0x00 ACK RST URGP=0