Nmap is a tool for pinging multiple ip address or hostnames at once from command line in Linux distributions. With Nmap you can easily identify the alive Machines in your LAN network ip address range.
Install Nmap first
If Nmap package is not installed in your linux, install it from yum repository (Here tested in Fedora linux. Should work in RPM based distributions like Redhat, CentOS, etc.)
[root@server ~]# yum install nmap
Loaded plugins: langpacks, presto, refresh-packagekit
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package nmap.x86_64 2:5.50-2.fc15 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
========================================================================
Package Arch Version Repository Size
========================================================================
Installing:
nmap x86_64 2:5.50-2.fc15 fedora 2.7 M
Transaction Summary
========================================================================
Install 1 Package(s)
Total download size: 2.7 M
Installed size: 9.7 M
Is this ok [y/N]: y
Downloading Packages:
Setting up and reading Presto delta metadata
Processing delta metadata
Package(s) data still to download: 2.7 M
nmap-5.50-2.fc15.x86_64.rpm | 2.7 MB 00:15
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : 2:nmap-5.50-2.fc15.x86_64 1/1
Installed:
nmap.x86_64 2:5.50-2.fc15
Complete!
[root@server ~]# vim server_list
google.com
facebook.com
8.8.8.8
#(Add the server's ipaddress/hostnames to ping and save the file)
Send Pings
[root@server ~]# nmap -sP -iL server_list
Starting Nmap 5.50 ( http://nmap.org ) at 2012-05-19 16:56 IST
Nmap scan report for google.com (74.125.236.38)
Host is up (0.0096s latency).
Other addresses for google.com (not scanned): 74.125.236.39 74.125.236.33 74.125.236.41 74.125.236.32 74.125.236.36 74.125.236.40 74.125.236.37 74.125.236.46 74.125.236.34 74.125.236.35
rDNS record for 74.125.236.38: maa03s04-in-f6.1e100.net
Nmap scan report for facebook.com (69.171.229.11)
Host is up (0.0096s latency).
Other addresses for facebook.com (not scanned): 69.171.242.11 66.220.158.11 66.220.149.11
rDNS record for 69.171.229.11: www-10-06-prn1.facebook.com
Nmap scan report for google-public-dns-a.google.com (8.8.8.8)
Host is up (0.0094s latency).
Nmap done: 3 IP addresses (3 hosts up) scanned in 2.85 seconds
Where....
-sP :is for pinging
-iL :is for input a file name.
Check Related Posts:
-iL :is for input a file name.
Check Related Posts:
0 comments:
Post a Comment