ubuntu 서버 세팅 파일 실행하여 다운로드 후 mongo 명령어를 쳐서 잘 설치 됐나 확인했는데

 mongodb-org-mongos : Depends: libssl1.1 (>= 1.1.0) but it is not installable

 mongodb-org-server : Depends: libssl1.1 (>= 1.1.0) but it is not installable

 mongodb-org-shell : Depends: libssl1.1 (>= 1.1.0) but it is not installable

E: Unable to correct problems, you have held broken packages.

Failed to start mongod.service: Unit mongod.service not found.

./initial_ec2.sh: line 27: netstat: command not found

./initial_ec2.sh: line 30: mongo: command not found

Failed to stop mongod.service: Unit mongod.service not loaded.

Failed to start mongod.service: Unit mongod.service not found.

./initial_ec2.sh: line 37: netstat: command not found

ubuntu@ip-172-31-43-70:~/sparta$ mongo

Command 'mongo' not found, did you mean:

 command 'mono' from deb mono-runtime (6.8.0.105+dfsg-3.2)

Try: sudo apt install <deb name>

이러한 오류가 나옵니다 어떻게 해결해야 하나요?ㅠ