nmap -sC -sV -T5 192.168.1.15
Starting Nmap 7.70 ( https://nmap.org ) at 2019-04-19 21:47 CEST
Nmap scan report for 192.168.1.15
Host is up (0.0054s latency).
Not shown: 990 closed ports
PORT     STATE SERVICE     VERSION
21/tcp   open  ftp         Pure-FTPd
| ssl-cert: Subject: commonName=192.168.1.15
| Not valid before: 2019-04-19T19:08:43
|_Not valid after:  2020-04-18T19:08:43
|_ssl-date: 2019-04-19T19:23:59+00:00; -24m09s from scanner time.
80/tcp   open  http        lighttpd 1.4.28
|_http-server-header: lighttpd/1.4.28
|_http-title: Site doesn't have a title (text/html).
81/tcp   open  http        lighttpd 1.4.28
| http-robots.txt: 1 disallowed entry
|_/
|_http-title: ownCloud
139/tcp  open  netbios-ssn Samba smbd 3.X - 4.X (workgroup: WORKGROUP)
443/tcp  open  ssl/http    lighttpd 1.4.28
|_http-title: Site doesn't have a title (text/html).
| ssl-cert: Subject: commonName=DNS-320Le46f1329365d/organizationName=D-LINK/stateOrProvinceName=D-LINK/countryName=US
| Subject Alternative Name: DNS:192.168.1.15, DNS:127.0.0.1, DNS:nasend~~
| Not valid before: 2016-05-31T15:51:53
|_Not valid after:  2019-05-31T15:51:53
|_ssl-date: 2019-04-19T19:23:54+00:00; -24m09s from scanner time.
445/tcp  open  netbios-ssn Samba smbd 3.5.15 (workgroup: WORKGROUP)
515/tcp  open  printer
3306/tcp open  mysql       MySQL (unauthorized)
4662/tcp open  edonkey?
8000/tcp open  http        Icecast streaming media server
|_http-title: Site doesn't have a title (text/html).

Host script results:
|_clock-skew: mean: -24m08s, deviation: 0s, median: -24m09s
|_nbstat: NetBIOS name: DLINK-29365D, NetBIOS user: <unknown>, NetBIOS MAC: <unknown> (unknown)
| smb-os-discovery:
|   OS: Unix (Samba 3.5.15)
|   Computer name: dlink-29365D
|   NetBIOS computer name:
|   Domain name:
|   FQDN: dlink-29365D
|_  System time: 2019-04-19T19:23:54+00:00
| smb-security-mode:
|   account_used: guest
|   authentication_level: user
|   challenge_response: supported
|_  message_signing: disabled (dangerous, but default)
|_smb2-time: Protocol negotiation failed (SMB2)