Commands matching nmap sorted by votes

Commands matching nmap (86)

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How many Linux and Windows devices are on your network?

Shows how many Windows and Linux devices are on your network. May add support for others, but that's all that are on my network right now. Show Sample Output
This is sample output - yours may be different.
```
3 Linux device(s)
2 Window(s) devices
```
3

sudo nmap -F -O 192.168.1.1-255 | grep "Running: " > /tmp/os; echo "$(cat /tmp/os | grep Linux | wc -l) Linux device(s)"; echo "$(cat /tmp/os | grep Windows | wc -l) Window(s) devices"

matthewbauer · 2010-01-10 03:09:56 6
port scan using parallel

It takes over 5 seconds to scan a single port on a single host using nmap time (nmap -p 80 192.168.1.1 &> /dev/null) real 0m5.109s user 0m0.102s sys 0m0.004s It took netcat about 2.5 minutes to scan port 80 on the class C time (for NUM in {1..255} ; do nc -w 1 -z -v 192.168.1.${NUM} 80 ; done &> /dev/null) real 2m28.651s user 0m0.136s sys 0m0.341s Using parallel, I am able to scan port 80 on the entire class C in under 2 seconds time (seq 1 255 | parallel -j255 'nc -w 1 -z -v 192.168.1.{} 80' &> /dev/null) real 0m1.957s user 0m0.457s sys 0m0.994s
This is sample output - yours may be different.
3

seq 1 255 | parallel -j+0 'nc -w 1 -z -v 192.168.1.{} 80'

devrick0 · 2011-06-11 14:40:51 3
Ping sweep without NMAP

Waits for all pings to complete and returns ip with mac address
This is sample output - yours may be different.
3

(prefix="10.59.21" && for i in `seq 254`; do (sleep 0.5 && ping -c1 -w1 $prefix.$i &> /dev/null && arp -n | awk ' /'$prefix'.'$i' / { print $1 " " $3 } ') & done; wait)

smoky · 2014-04-02 11:20:57 11
Scan Subnet for IP and MAC addresses
This is sample output - yours may be different.
3

nmap -sP 192.168.1.0/24

harpo · 2014-11-07 12:15:06 9
Set pcap & SUID Bit for priv. network programs (like nmap)
This is sample output - yours may be different.
3

export BIN=`which nmap` && sudo setcap cap_net_raw,cap_net_admin+eip $BIN && sudo chown root $BIN && sudo chmod u+s $BIN

dbiesecke · 2019-03-27 16:04:07 36
Get a list of ssh servers on the local subnet

--open -sV is not needed if you are only looking for hosts with 22 open Show Sample Output
This is sample output - yours may be different.
```
Nmap scan report for 10.3.X.X
Host is up (0.0019s latency).
PORT   STATE SERVICE
22/tcp open  ssh
--

Nmap scan report for 10.3.X.X
Host is up (0.00012s latency).
PORT   STATE SERVICE
22/tcp open  ssh
```
2

nmap -p 22 10.3.1.1/16 | grep -B 4 "open"

feydrm · 2010-10-20 16:28:54 6
Ping all hosts on 192.168.1.0/24
This is sample output - yours may be different.
2

nmap -sn 192.168.1.0/24

pdxdoughnut · 2014-01-28 23:32:18 13
nmap fast scan all ports target
This is sample output - yours may be different.
2

nmap -p0-65535 192.168.1.254 -T5

aysadk · 2019-01-09 14:55:18 61
Quickly ping range of IP adresses and return only those that are online
This is sample output - yours may be different.
2

nmap -sP 192.168.0.0/24

snaguber · 2021-04-25 19:48:43 181

Ping a range of addresses

Show Sample Output

nmap -sP -T Insane 192.168.1.1-254

gcarpent · 2009-03-07 08:41:21 7

Scan your LAN for unauthorized IPs

populate the auth.hosts file with a list of IP addresses that are authorized to be in use and when you run this command it will return the addresses that are pingable and not in the authorized list. Can be combined with the "Command line Twitter" command to tweet unauthorized access. Show Sample Output
This is sample output - yours may be different.
```
UNAUTHORIZED IP - 192.168.1.69
```
1

diff <(nmap -sP 192.168.1.0/24 | grep ^Host | sed 's/.appears to be up.//g' | sed 's/Host //g') auth.hosts | sed 's/[0-9][a-z,A-Z][0-9]$//' | sed 's/</UNAUTHORIZED IP -/g'

bandit36 · 2009-03-12 05:28:08 9
Generate random IP addresses

It never ends Show Sample Output
This is sample output - yours may be different.
```
136.159.200.131
188.52.81.164  
67.192.148.226 
192.136.218.176
93.242.113.87  
112.209.160.94 
(... ad infinitum ...)
```
1

nmap -n -iR 0 -sL | cut -d" " -f 2

kovan · 2009-08-12 16:49:55 8
Find unused IPs on a given subnet
This is sample output - yours may be different.
1

nmap -sP <subnet>.* | egrep -o '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' > results.txt ; for IP in {1..254} ; do echo "<subnet>.${IP}" ; done >> results.txt ; cat results.txt | sort -n -t . -k 1,1 -k 2,2 -k 3,3 -k 4,4 | uniq -u

bortoelnino · 2010-01-22 00:26:42 5
Using vim to save and run your python script.

This will save and execute your python script every time your press the F5 function key. It can also be added to your .vimrc: autocmd BufRead *.py nmap :w^M:!python % NOTE: the ^M is not just caret-M, it can be created by type: ctrl-v ctrl-m Show Sample Output
This is sample output - yours may be different.
```
This prints the output of my python script

Press ENTER or type command to continue
```
1

vim ... :nmap <F5> :w^M:!python %<CR>

duxklr · 2010-09-03 18:44:21 7
count of down available ips
This is sample output - yours may be different.
1

nmap -v -sP 192.168.10.0/24 | grep down | wc -l

unixmonkey16033 · 2011-01-03 21:33:02 4
count of down available ips

avoid wc overload ;)
This is sample output - yours may be different.
1

nmap -v -sP 192.168.10.0/24 | grep -c down

ioggstream · 2011-01-04 11:20:27 5
Intercept, monitor and manipulate a TCP connection.

This will handle multiple incoming connections. Also, found sed works best with -u flag (unbuffered io). Easiest way I've found to get ncat is to install nmap.
This is sample output - yours may be different.
1

ncat -l -p 1234 --sh-exec "tee -a to.log | nc machine port | tee -a from.log"

peter4512 · 2012-01-11 15:14:17 5

nmap port scanning

TCP Connect scanning for localhost and network 192.168.0.0/24 Show Sample Output

nmap -v -sT 192.168.0.0/24

Dhinesh · 2011-11-19 07:06:52 20

Nmap list IPs in a network and saves in a txt
This is sample output - yours may be different.
1

nmap -sP 192.168.1.0/24 | grep "Nmap scan report for"| cut -d' ' -f 5 > ips.txt

jorgemendoza · 2012-11-18 18:17:04 6
script broadcast-pppoe-discover
This is sample output - yours may be different.
1

nmap -T4 --script broadcast-pppoe-discover 192.168.122.0/24

ene2002 · 2013-02-18 13:26:48 4
Display only hosts up in network

This command will display only the hosts that are active in the network. Show Sample Output
This is sample output - yours may be different.
```
192.168.0.2
192.168.0.10
192.168.0.44
192.168.0.67
```
0

nmap -sP your network/submask | awk "/^Host/"'{ print $2 }'

rauhmaru · 2009-04-02 12:41:54 7
Scan computers OS and open services on all network
This is sample output - yours may be different.
0

nmap -O 192.168.1.1/24

xptonix · 2009-07-09 10:57:51 4
get IPs with a DHCP lease

You can use that to create a excludefile for nmap, to find hosts, with no DHCP lease in your DHCP range. Show Sample Output
This is sample output - yours may be different.
```
192.168.0.73
192.168.0.99
192.168.0.38
192.168.0.77
192.168.0.98
192.168.0.46
192.168.0.13
```
0

egrep "^lease" /var/lib/dhcp/db/dhcpd.leases |awk '{ print $2 }'

peshay · 2009-08-14 07:31:00 3
checks if host /service is up on a host that doesn't respond to ping

the command for the impatient sysadmin: simply checks every five secs, if a host or a specific service running on it is up. ideal for hosts that are configured not to respond on pings. Show Sample Output
This is sample output - yours may be different.
```
Starting Nmap 4.76 ( http://nmap.org ) at 2009-08-14 22:14 CEST
Interesting ports on 192.168.0.1:
PORT   STATE SERVICE
80/tcp open  http
```
0

while true; do clear; nmap ${hostname} -PN -p ${hostport}; sleep 5; done

flokra · 2009-08-14 20:19:59 3
How to check webserver by Nikto

This is wonderful perl script to check the web server security and vulnerability .Get it from here :http://www.cirt.net/nikto2 Here are some key features of "Nikto": ? Uses rfp's LibWhisker as a base for all network funtionality ? Main scan database in CSV format for easy updates ? Determines "OK" vs "NOT FOUND" responses for each server, if possible ? Determines CGI directories for each server, if possible ? Switch HTTP versions as needed so that the server understands requests properly ? SSL Support (Unix with OpenSSL or maybe Windows with ActiveState's Perl/NetSSL) ? Output to file in plain text, HTML or CSV ? Generic and "server type" specific checks ? Plugin support (standard PERL) ? Checks for outdated server software ? Proxy support (with authentication) ? Host authentication (Basic) ? Watches for "bogus" OK responses ? Attempts to perform educated guesses for Authentication realms ? Captures/prints any Cookies received ? Mutate mode to "go fishing" on web servers for odd items ? Builds Mutate checks based on robots.txt entries (if present) ? Scan multiple ports on a target to find web servers (can integrate nmap for speed, if available) ? Multiple IDS evasion techniques ? Users can add a custom scan database ? Supports automatic code/check updates (with web access) ? Multiple host/port scanning (scan list files) ? Username guessing plugin via the cgiwrap program and Apache ~user methods Show Sample Output
This is sample output - yours may be different.
```
nikto.pl -h webserv
- Nikto v2.03/2.04
---------------------------------------------------------------------------
+ Target IP:          198.162.5.2
+ Target Hostname:    wevserv
+ Target Port:        80
+ Start Time:         2009-08-30 10:17:12
---------------------------------------------------------------------------
+ Server: Apache/2.2.0 (Fedora)
+ No CGI Directories found (use '-C all' to force check all possible dirs)
+ Apache/2.2.0 appears to be outdated (current is at least Apache/2.2.9). Apache 1.3.39 and 2.0.61 are also current.
+ OSVDB-877: TRACE / : TRACE option appears to allow XSS or credential theft. See http://www.cgisecurity.com/whitehat-mirror/WhitePaper_screen.pdf for details
+ 3577 items checked: 2 item(s) reported on remote host
+ End Time:        2009-08-30 10:17:21 (9 seconds)
---------------------------------------------------------------------------
+ 1 host(s) tested

Test Options: -h webserv
---------------------------------------------------------------------------
```
0

nikto.pl -h yourwebserver

unixbhaskar · 2009-08-29 04:54:43 8
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generate a telephone keypad

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Disable WoL on eth0

See system users

journalctl -f

a tail -f variant of systemd journal. Follow the most recent updates or if events are appended to the journal

Check if a remote port is up using dnstools.com (i.e. from behind a firewall/proxy)

Shell function; returns 0 if the port is up, 1 otherwise (check $? after executing). First parameter: IP address/hostname Second parameter: port number There is no error checking for the input parameters.

Change the homepage of Firefox

This command modifies the preferences file of Firefox that is located in .mozilla/firefox/*.default/prefs.js. It edits the file with sed and the -i option. Then it searches the string "browser.startup.homepage", and the string next to it (second string). Finally, it replaces the second string with the new homepage, that is http://sliceoflinux.com in the example. It doesn't work if you haven't set any homepage.

Create a Multi-Part Archive Without Proprietary Junkware

Leave it to a proprietary software vendor to turn a cheap and easy parlor trick into a selling point. "Hey guys, why don't we turn our _collection of multiple files_ into a *collection of multiple files*!!" Extract the ^above with this: $ cat pics.tar.gz.??? | tar xzv ^extract on any Unix - no need to install junkware! (If you must make proprietary software, at least make it do something *new*) if [ -e windows ]; then use 7-Zip

Re-emerge all ebuilds with missing files (Gentoo Linux)

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Commands matching nmap (86)

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