1 recon

PORT    STATE SERVICE  VERSION
22/tcp  open  ssh      OpenSSH 7.2p2 Ubuntu 4ubuntu2.10 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey:
|   2048 b8:8c:40:f6:5f:2a:8b:f7:92:a8:81:4b:bb:59:6d:02 (RSA)
|   256 e7:bb:11:c1:2e:cd:39:91:68:4e:aa:01:f6:de:e6:19 (ECDSA)
|_  256 0f:8e:28:a7:b7:1d:60:bf:a6:2b:dd:a3:6d:d1:4e:a4 (ED25519)
25/tcp  open  smtp     Postfix smtpd
|_smtp-commands: ubuntu, PIPELINING, SIZE 10240000, VRFY, ETRN, STARTTLS, ENHANCEDSTATUSCODES, 8BITMIME, DSN,
| ssl-cert: Subject: commonName=ubuntu
| Not valid before: 2020-09-08T17:59:00
|_Not valid after:  2030-09-06T17:59:00
|_ssl-date: TLS randomness does not represent time
80/tcp  open  http     Apache httpd 2.4.18 ((Ubuntu))
|_http-server-header: Apache/2.4.18 (Ubuntu)
|_http-title: Nagios XI
389/tcp open  ldap     OpenLDAP 2.2.X - 2.3.X
443/tcp open  ssl/http Apache httpd 2.4.18 ((Ubuntu))
|_http-server-header: Apache/2.4.18 (Ubuntu)
|_http-title: Nagios XI
| ssl-cert: Subject: commonName=192.168.1.6/organizationName=Nagios Enterprises/stateOrProvinceName=Minnesota/countryName=US
| Not valid before: 2020-09-08T18:28:08
|_Not valid after:  2030-09-06T18:28:08
|_ssl-date: TLS randomness does not represent time
| tls-alpn:
|_  http/1.1
Service Info: Host:  ubuntu; OS: Linux; CPE: cpe:/o:linux:linux_kernel