An NMAP scan can turn up a lost of useful information about a host.

┏━(Message from Kali developers)
┃
┃ This is a minimal installation of Kali Linux, you likely
┃ want to install supplementary tools. Learn how:
┃ ⇒ https://www.kali.org/docs/troubleshooting/common-minimum-setup/
┃
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╭──(john㉿DESKTOP-PF01IEE)───╮
╰───────────────────────────╾╯(~)-(172.25.74.218)┋ sudo nmap 147.161.219.87 -script intrusive

3128/tcp  open  squid-http
8080/tcp  open  http-proxy
| http-vhosts: 
| whois
| firewall
|_126 names had status 407
|_citrix-brute-xml: FAILED: No domain specified (use ntdomain argument)
|_http-chrono: Request times for /; avg: 722430.53ms; min: 95.31ms; max: 3611591.17ms
|_http-slowloris: false
8800/tcp  open  sunwebadmin
10000/tcp open  snet-sensor-mgmt
10009/tcp open  swdtp-sv
10010/tcp open  rxapi
10012/tcp open  unknown
10082/tcp open  amandaidx
10180/tcp open  unknown
10215/tcp open  unknown
10566/tcp open  unknown
10616/tcp open  unknown
10621/tcp open  unknown
10778/tcp open  unknown
11111/tcp open  vce
12000/tcp open  cce4x
12345/tcp open  netbus
55555/tcp open  unknown

Starting Nmap 7.94SVN ( https://nmap.org ) at 2024-02-28 05:14 AEDT
Pre-scan script results:
| broadcast-avahi-dos: 
|   Discovered hosts:
|     224.0.0.251
|   After NULL UDP avahi packet DoS (CVE-2011-1002).
|_  Hosts are all up (not vulnerable).
Nmap scan report for 147.161.219.87
Host is up (0.067s latency).
Not shown: 978 filtered tcp ports (no-response)
PORT      STATE SERVICE
21/tcp    open  ftp
| ftp-brute: 
|   Accounts: No valid accounts found
|   Statistics: Performed 0 guesses in 1 seconds, average tps: 0.0
|_  ERROR: The service seems to have failed or is heavily firewalled...
80/tcp    open  http
| http-vhosts: 
|_128 names had status ERROR
|_http-feed: Couldn't find any feeds.
|_http-devframework: Couldn't determine the underlying framework or CMS. Try increasing 'httpspider.maxpagecount' value to spider more pages.
|_citrix-brute-xml: FAILED: No domain specified (use ntdomain argument)
| http-brute:   
|_  Path "/" does not require authentication
|_http-csrf: Couldn't find any CSRF vulnerabilities.
|_http-stored-xss: Couldn't find any stored XSS vulnerabilities.
|_http-chrono: Request times for /; avg: 14214.86ms; min: 14204.07ms; max: 14243.23ms
|_http-dombased-xss: Couldn't find any DOM based XSS.
| http-slowloris: 
|   Vulnerable:
|   the DoS attack took +2m02s
|   with 1001 concurrent connections
|_  and 20 sent queries
| http-sitemap-generator: 
|   Directory structure:
|   Longest directory structure:
|     Depth: 0
|     Dir: /
|   Total files found (by extension):
|_    
|_http-vuln-cve2014-3704: ERROR: Script execution failed (use -d to debug)
|_http-errors: ERROR: Script execution failed (use -d to debug)
443/tcp   open  https
|_http-csrf: Couldn't find any CSRF vulnerabilities.
|_http-chrono: Request times for /; avg: 365393.20ms; min: 257.35ms; max: 1825790.62ms
| http-brute:   
|_  Path "/" does not require authentication
|_http-feed: Couldn't find any feeds.
|_citrix-brute-xml: FAILED: No domain specified (use ntdomain argument)
| http-vhosts: 
| 46 names had status ERROR
|_82 names had status 403
|_http-slowloris: false
|_http-dombased-xss: Couldn't find any DOM based XSS.
|_http-stored-xss: Couldn't find any stored XSS vulnerabilities.
|_http-devframework: Couldn't determine the underlying framework or CMS. Try increasing 'httpspider.maxpagecount' value to spider more pages.

╭──(john㉿DESKTOP-PF01IEE)───╮
╰───────────────────────────╾╯(~)-(172.25.74.218)┋ ftp 147.161.219.87
Connected to 147.161.219.87.
421 Proxy is closed (unknown user location)