linux check open port without nmap

Hungry Heron answered on July 7, 2022 Popularity 8/10 Helpfulness 2/10

answer linux check open port without nmap

related nmap all port

linux check open port without nmap

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if timeout 5 bash -c '</dev/tcp/kernel.org/443 &>/dev/null'
then
  echo "Port is open"
else
  echo "Port is closed"
fi

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Source: Grepper

Tags: linux nmap port whatever

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Contributed on Feb 25 2023

Hungry Heron

0 Answers Avg Quality 2/10

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bothboth@htb[/htb]$ nmap -sV -sC -p- 10.129.42.253

Starting Nmap 7.80 ( https://nmap.org ) at 2021-02-25 16:18 EST
Nmap scan report for 10.129.42.253
Host is up (0.11s latency).
Not shown: 65530 closed ports
PORT    STATE SERVICE     VERSION
21/tcp  open  ftp         vsftpd 3.0.3
| ftp-anon: Anonymous FTP login allowed (FTP code 230)
|_drwxr-xr-x    2 ftp      ftp          4096 Feb 25 19:25 pub
| ftp-syst: 
|   STAT: 
| FTP server status:
|      Connected to ::ffff:10.10.14.2
|      Logged in as ftp
|      TYPE: ASCII
|      No session bandwidth limit
|      Session timeout in seconds is 300
|      Control connection is plain text
|      Data connections will be plain text
|      At session startup, client count was 2
|      vsFTPd 3.0.3 - secure, fast, stable
|_End of status
22/tcp  open  ssh         OpenSSH 8.2p1 Ubuntu 4ubuntu0.1 (Ubuntu Linux; protocol 2.0)
80/tcp  open  http        Apache httpd 2.4.41 ((Ubuntu))
|_http-server-header: Apache/2.4.41 (Ubuntu)
|_http-title: PHP 7.4.3 - phpinfo()
139/tcp open  netbios-ssn Samba smbd 4.6.2
445/tcp open  netbios-ssn Samba smbd 4.6.2
Service Info: OSs: Unix, Linux; CPE: cpe:/o:linux:linux_kernel

Host script results:
|_nbstat: NetBIOS name: GS-SVCSCAN, NetBIOS user: <unknown>, NetBIOS MAC: <unknown> (unknown)
| smb2-security-mode: 
|   2.02: 
|_    Message signing enabled but not required
| smb2-time: 
|   date: 2021-02-25T21:21:51
|_  start_date: N/A

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 233.68 seconds

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Source: academy.hackthebox.com

Tags: nmap

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Contributed on Jul 07 2022

Gentle Grivet

0 Answers Avg Quality 2/10

linux check open port without nmap

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linux check open port without nmap

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