1 recon

PORT    STATE SERVICE     VERSION
22/tcp  open  ssh         OpenSSH 7.6p1 Ubuntu 4ubuntu0.3 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey:
|   2048 db:dd:2c:ea:2f:85:c5:89:bc:fc:e9:a3:38:f0:d7:50 (RSA)
|   256 e3:b7:65:c2:a7:8e:45:29:bb:62:ec:30:1a:eb:ed:6d (ECDSA)
|_  256 d5:5b:79:5b:ce:48:d8:57:46:db:59:4f:cd:45:5d:ef (ED25519)
25/tcp  open  smtp        OpenSMTPD
| smtp-commands: bratarina Hello nmap.scanme.org [192.168.49.197], pleased to meet you, 8BITMIME, ENHANCEDSTATUSCODES, SIZE 36700160, DSN, HELP,
|_ 2.0.0 This is OpenSMTPD 2.0.0 To report bugs in the implementation, please contact [e-mail] 2.0.0 with full details 2.0.0 End of HELP info
80/tcp  open  http        nginx 1.14.0 (Ubuntu)
|_http-server-header: nginx/1.14.0 (Ubuntu)
|_http-title:         Page not found - FlaskBB
 http-enum:
|_  /robots.txt: Robots file
445/tcp open  netbios-ssn Samba smbd 4.7.6-Ubuntu (workgroup: COFFEECORP)
Service Info: Host: bratarina; OS: Linux; CPE: cpe:/o:linux:linux_kernel

Host script results:
|_clock-skew: mean: 1h20m00s, deviation: 2h18m34s, median: 0s
| smb-os-discovery:
|   OS: Windows 6.1 (Samba 4.7.6-Ubuntu)
|   Computer name: bratarina
|   NetBIOS computer name: BRATARINA\x00
|   Domain name: \x00
|   FQDN: bratarina
|_  System time: 2021-08-31T20:18:31-04:00
| smb-security-mode:
|   account_used: <blank>
|   authentication_level: user
|   challenge_response: supported
|_  message_signing: disabled (dangerous, but default)
| smb2-security-mode:
|   2.02:
|_    Message signing enabled but not required
| smb2-time:
|   date: 2021-09-01T00:18:33`