Pebbles [Hard]

TCP:

Nmap scan report for 192.168.203.52
Host is up (0.081s latency).
Not shown: 65530 filtered tcp ports (no-response)
Some closed ports may be reported as filtered due to --defeat-rst-ratelimit
PORT     STATE SERVICE VERSION
21/tcp   open  ftp     vsftpd 3.0.3
22/tcp   open  ssh     OpenSSH 7.2p2 Ubuntu 4ubuntu2.8 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey:
|   2048 aa:cf:5a:93:47:18:0e:7f:3d:6d:a5:af:f8:6a:a5:1e (RSA)
|   256 c7:63:6c:8a:b5:a7:6f:05:bf:d0:e3:90:b5:b8:96:58 (ECDSA)
|_  256 93:b2:6a:11:63:86:1b:5e:f5:89:58:52:89:7f:f3:42 (ED25519)
80/tcp   open  http    Apache httpd 2.4.18 ((Ubuntu))
|_http-server-header: Apache/2.4.18 (Ubuntu)
|_http-title: Pebbles
3305/tcp open  http    Apache httpd 2.4.18 ((Ubuntu))
|_http-server-header: Apache/2.4.18 (Ubuntu)
|_http-title: Apache2 Ubuntu Default Page: It works
8080/tcp open  http    Apache httpd 2.4.18 ((Ubuntu))
|_http-server-header: Apache/2.4.18 (Ubuntu)
|_http-favicon: Apache Tomcat
|_http-title: Tomcat
| http-open-proxy: Potentially OPEN proxy.
|_Methods supported:CONNECTION
Service Info: OSs: Unix, Linux; CPE: cpe:/o:linux:linux_kernel

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 47.05 seconds

UDP:

Nmap scan report for 192.168.203.52
Host is up (0.078s latency).
All 65535 scanned ports on 192.168.203.52 are in ignored states.
Not shown: 65535 open|filtered udp ports (no-response)

Nmap done: 1 IP address (1 host up) scanned in 29.93 seconds