phatdee

Nmap Command Examples

Posted by phatdee on June 4, 2019

Posted in: Nmap. Tagged: nmap. Leave a Comment

This is really old, but still helpful

Basic scan:

$ sudo nmap 192.168.1.50

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$ sudo nmap 192.168.1.50
Scan multiple addresses:

$ sudo nmap 192.168.1.50 192.168.1.51 192.168.1.52

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$ sudo nmap 192.168.1.50 192.168.1.51 192.168.1.52
Scan entire subnet looking for valid hosts. This quick scan will also grab MAC address and perform MAC lookup to help determine what the host is.

$ sudo nmap -sP 192.168.1.50

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$ sudo nmap -sP 192.168.1.50
Discovery: Before a scan nmap will attempt to send an ICMP echo request. To not send the ICMP, :

$ sudo nmap -PN 192.168.1.50

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$ sudo nmap -PN 192.168.1.50
To do only a ping scan:

$ sudo nmap -sP 192.168.1.50

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$ sudo nmap -sP 192.168.1.50
Do an ARP Ping scan:

$ sudo nmap -PR 192.168.1.50

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$ sudo nmap -PR 192.168.1.50
Port Scanning options: Performing a Fast scan:

$ sudo nmap -F 192.168.1.50

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$ sudo nmap -F 192.168.1.50
Scan only specific ports:

$ sudo nmap -p22 192.168.1.50

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$ sudo nmap -p22 192.168.1.50
Scan multiple ports:

$ sudo nmap -p 22,25,53 , 80-250 192.168.1.50

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$ sudo nmap -p 22,25,53 , 80-250 192.168.1.50
Scan ports by name (found in /etc/services)

$ sudo nmap -p snmtp,ftp 192.168.1.50

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$ sudo nmap -p snmtp,ftp 192.168.1.50
Scan all ports:

$ sudo nmap -p "*" 192.168.1.50

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$ sudo nmap -p "*" 192.168.1.50
Choose between TCP and/or UDP:

$ sudo nmap -p -T:3000-4000 192.168.1.50

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$ sudo nmap -p -T:3000-4000 192.168.1.50
What OS is the target running?

$ sudo nmap -O 192.168.1.50

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$ sudo nmap -O 192.168.1.50
If the OS is unknown, have nmap attempt to guess the OS

$ sudo nmap -O --osscan-guess 192.168.1.50

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$ sudo nmap -O --osscan-guess 192.168.1.50
Service version detection

$ sudo nmap -sV 192.168.1.50

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$ sudo nmap -sV 192.168.1.50

Disable Energy Star features on monitors

Posted by phatdee on May 31, 2019

Posted in: Uncategorized. Leave a Comment

I have no idea how or why this started happening however my monitors would go black after 15 seconds of idle. No power settings or screensavers were causing it, nor did I see any helpful logs to help troubleshoot. However somewhere/how the Energy Star features of my monitor got enabled and literally after 15 seconds of idle time the monitors would go black..

Simple fix:

$ sudo xset -dpms

1	$ sudo xset -dpms

This fixed the issue not only for the current logged in session but also after a reboot.

Passing arguments in bash scripts.

Posted by phatdee on May 14, 2019

Posted in: Bash. Tagged: args, bash, env. Leave a Comment

$# : Number of arguments passed via script

$0 : Name of the script

$@ : Names of arguments passed to the script at execution

$$ : Process ID associated with script

$OSTYPE : What’s the OS type?

$TERM : What’s term is being used?

$USER : What’s the username that executed the script?

$HOSTNAME : What’s the hostname of the box that ran the script?

$LOGNAME : What was the login username?

$LINENO : Current line # of the script

$RANDOM : Random #

$BASH_SOURCE : What’s the bash source?

Example script:

#! /bin/bash

echo "Number of arguments passed via script: " $#
echo "Name of the Script: " $0
echo "Names of arguments passed via the script: " $@
echo "Whats the process ID associated with this script: " $$
echo "What was the username that started this script: " $USER
echo "What was the hostname of the box that ran this script: " $HOSTNAME
echo "The number of seconds since the script was started: " $SECONDS
echo "Random number, please: " $RANDOM
echo "Whats the current line # on this script: " $LINENO
echo "What is my bash source? " $BASH_SOURCE
echo "Whats the login name? " $LOGNAME
echo "Whats my term? " $TERM
echo "Whats the OS type? " $OSTYPE

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#! /bin/bash

echo "Number of arguments passed via script: " $#

echo "Name of the Script: " $0

echo "Names of arguments passed via the script: " $@

echo "Whats the process ID associated with this script: " $$

echo "What was the username that started this script: " $USER

echo "What was the hostname of the box that ran this script: " $HOSTNAME

echo "The number of seconds since the script was started: " $SECONDS

echo "Random number, please: " $RANDOM

echo "Whats the current line # on this script: " $LINENO

echo "What is my bash source? " $BASH_SOURCE

echo "Whats the login name? " $LOGNAME

echo "Whats my term? " $TERM

echo "Whats the OS type? " $OSTYPE

$ bash test.bash.args.sh this is a goofy ass test

Number of arguments passed via script:  6
Name of the Script:  test.bash.args.sh
Names of arguments passed via the script:  this is a goofy ass test
Whats the process ID associated with this script:  15420
What was the username that started this script:  testuser
What was the hostname of the box that ran this script:  evergreen.corp
The number of seconds since the script was started:  0
Random number, please:  27597
Whats the current line # on this script:  11
What is my bash source?  test.bash.args.sh
Whats the login name?  testuser
Whats my term?  xterm-256color
Whats the OS type?  linux-gnu

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$ bash test.bash.args.sh this is a goofy ass test

Number of arguments passed via script: 6

Name of the Script: test.bash.args.sh

Names of arguments passed via the script: this is a goofy ass test

Whats the process ID associated with this script: 15420

What was the username that started this script: testuser

What was the hostname of the box that ran this script: evergreen.corp

The number of seconds since the script was started: 0

Random number, please: 27597

Whats the current line # on this script: 11

What is my bash source? test.bash.args.sh

Whats the login name? testuser

Whats my term? xterm-256color

Whats the OS type? linux-gnu

Creating a folder for each day of the year.

Posted by phatdee on May 11, 2019

Posted in: Commands, Mkdir. Tagged: day, mkdir, month, year. 1 comment

This will create a folder for each month 01-12. Inside each month folder will be 30 or 31 folders for each day of the month except for Feb. which will have only 28. This can be changed to 29 if it happens to be a leap-year.

mkdir -p {01,03,05,07,08,10,12}/{01..31} 02/{01..28} {04,06,09,11}/{01..30}

1	mkdir -p {01,03,05,07,08,10,12}/{01..31} 02/{01..28} {04,06,09,11}/{01..30}

Editing PDF files in Linux.

Posted by phatdee on November 18, 2018

Posted in: Uncategorized. Leave a Comment

Open the PDF file in LibreOffice Draw and once opened, it appears you can edit nearly everything.

UnixDude

"To be a warrior is not a simple matter of wishing to be one. It is rather an endless struggle that will go on to the very last moment of our lives. Nobody is born a warrior, in exactly the same way that nobody is born an average man. We make ourselves into one or the other." --Kokoro

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Nmap Command Examples

Disable Energy Star features on monitors

Passing arguments in bash scripts.

Creating a folder for each day of the year.

Editing PDF files in Linux.

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