mongodb6 on almalinux9.5 is giving me error: Unable to acquire security key, when attempting a replica set

I was attempting to create a mongodb cluster with replica set using 3 pc. I am very new to mongodb. the 3 pc have almalinux9.5 and mongodb v6 installed. so far I issued those commands as root.

 yum install https://repo.percona.com/yum/percona-release-latest.noarch.rpm
 percona-release enable psmdb-60 release
 yum list percona-server-mongodb --showduplicates
 yum install percona-server-mongodb
 systemctl start mongod
 systemctl status mongod
 systemctl stop mongod
 mongosh
 sudo firewall-cmd --add-port=27017/tcp --permanent
 firewall-cmd --reload
 systemctl restart mongod
 rm /tmp/mongodb-27017.sock
 systemctl restart mongod
 systemctl status mongod
 mongosh --port 27017  --authenticationDatabase "admin" -u "admin" -p
 nano /etc/mongod.conf 
 systemctl stop mongod

the conf file is this one:

dbPath: /var/lib/mongo
  journal:
    enabled: true
systemLog:
  destination: file
  logAppend: true
  path: /var/log/mongo/mongod.log
processManagement:
  fork: true
  pidFilePath: /var/run/mongod.pid
net:
  port: 27017
  bindIp: 0.0.0.0
security:
  authorization: enabled
replication:
  replSetName: "rs0"
security:
    keyFile: /etc/mongodb/keyfile

when I try to start mongod, and I do it as root, i get this error log:

{"t":{"$date":"2025-01-16T12:01:48.622+01:00"},"s":"I",  "c":"CONTROL",  "id":23285,   "ctx":"-","msg":"Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols 'none'"}
{"t":{"$date":"2025-01-16T12:01:48.629+01:00"},"s":"I",  "c":"NETWORK",  "id":4915701, "ctx":"-","msg":"Initialized wire specification","attr":{"spec":{"incomingExternalClient":{"minWireVersion":0,"maxWireVersion":17},"incomingInternalClient":{"minWireVersion":0,"maxWireVersion":17},"outgoing":{"minWireVersion":6,"maxWireVersion":17},"isInternalClient":true}}}
{"t":{"$date":"2025-01-16T12:01:48.630+01:00"},"s":"I",  "c":"NETWORK",  "id":4648601, "ctx":"main","msg":"Implicit TCP FastOpen unavailable. If TCP FastOpen is required, set tcpFastOpenServer, tcpFastOpenClient, and tcpFastOpenQueueSize."}
{"t":{"$date":"2025-01-16T12:01:48.632+01:00"},"s":"I",  "c":"ACCESS",   "id":20254,   "ctx":"main","msg":"Read security file failed","attr":{"error":{"code":30,"codeName":"InvalidPath","errmsg":"permissions on /etc/mongodb/keyfile are too open"}}}
{"t":{"$date":"2025-01-16T12:01:48.633+01:00"},"s":"I",  "c":"SHARDING", "id":5847201, "ctx":"main","msg":"Balancer command scheduler stop requested"}
{"t":{"$date":"2025-01-16T12:01:48.633+01:00"},"s":"I",  "c":"ASIO",     "id":22582,   "ctx":"main","msg":"Killing all outstanding egress activity."}
{"t":{"$date":"2025-01-16T12:01:48.633+01:00"},"s":"F",  "c":"CONTROL",  "id":20575,   "ctx":"main","msg":"Error creating service context","attr":{"error":"Location5579201: Unable to acquire security key[s]"}}

To better explain my attempt I made a keyfile called keyfile and used scp to copy it on the 3 pc at the path: /etc/mongodb/keyfile, the keyfile has now permission 644. How do I fix that error Unable to acquire security key and what does it means?