how to check open ports of bunch of website at once with nmap/linux?

Posted by austin powers on Server Fault See other posts from Server Fault or by austin powers
Published on 2010-05-12T04:17:55Z Indexed on 2010/05/12 4:25 UTC
Read the original article Hit count: 278

Filed under:

nmap

|

pipe

|

linux

hi , I want to use nmap in such a way that I could check bunch of server's port at once for checking whether their particular port is open or not? right now I have 10 ip addresses but in future this could be more . I know the very basic command in linux like cat/nano/piping but I don't know how can I feed to nmap the list of my servers to open them one by one and return the result.

© Server Fault or respective owner

Related posts about nmap

Ports do not open after rules appended in iptables

as seen on Server Fault - Search for 'Server Fault'
I have a server that I am trying to setup for OpenVPN. I have followed all the steps, but I see that when I try to connect to it in Windows, it doesn't allow me, it just hangs on connecting, so I did a nmap scan and I see that port 1194 is not open so naturally I append the rule to open 1194 with: iptables… >>> More
Centos does not open port/s after the rule/s are appended

as seen on Server Fault - Search for 'Server Fault'
So after some battling and struggling with the firewall, i see that I may be doing something or the firewall isnt responding correctly there is has a port filter that is blocking certain ports. by the way, I have combed the internet, posted on forums, done almost everything and now hence the website… >>> More
NMap route determination on Windows 7 x64

as seen on Server Fault - Search for 'Server Fault'
C:\Windows\system32>nmap --iflist Starting Nmap 6.01 ( http://nmap.org ) at 2012-08-31 06:51 Central Daylight Time ************************INTERFACES************************ DEV (SHORT) IP/MASK TYPE UP MTU MAC eth0 (eth0) fe80::797f:b9b6:3ee0:27b8/64 ethernet … >>> More
Using nmap in Android SDK

as seen on Super User - Search for 'Super User'
How can I use nmap (port scanning utility) on the Android SDK emulator in Windows? I am trying to install a port scanner on Android SDK which is installed on Ubuntu. I have two problems: How do I install any Linux application on Android SDK? How do I copy the data from the local hard drive to… >>> More
nmap: easily Ping-Scan all addresses in my subnet

as seen on Super User - Search for 'Super User'
Is there an nmap line that will auto-detect my current IP address and subnet mask, and run a ping-scan on all? For example: #> nmap -sP 0.0.0.0 Instead of manually: #> nmap -sP 192.168.100.0/24 >>> More

Related posts about pipe

Using SAS Macro to pipe a list of filenames from a Windows directory

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to amend the macro below to accept a macro parameter as the 'location' argument for a dir command. However I cannot get it to resolve correctly due to the nested quotes issue. Using %str(%') does not work, neither do quoting functions for some reason. The macro will work fine when the… >>> More
How to rate-limit a pipe under linux ?

as seen on Stack Overflow - Search for 'Stack Overflow'
Is there a filter which I could use to rate-limit a pipe on linux? If this exists, let call it rate-limit, I want to be able to type in a terminal something like cat /dev/urandom | rate-limit 3 -k | foo in order to send a a stream of random bytes to foo's standard input at a rate (lower than) 3… >>> More
Behavior of a pipe after a fork()

as seen on Stack Overflow - Search for 'Stack Overflow'
When reading about pipes in Advanced Programming in the UNIX Environment, I noticed that after a fork that the parent can close() the read end of a pipe and it doesn't close the read end for the child. When a process forks, does its file descriptors get retained? What I mean by this is that before… >>> More
How do I pipe terminal standard output (stdout) to the clipboard?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
For example, Say I want to list the contents of a folder and directly paste them into a chat window for a friend to see. I realize I could do ls > filename.txt to create a file (filename.txt) with those contents; I'd then have to open or print the file and manually select and copy the text… >>> More
I can't upgrade 13.10 because of broken pipe

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I try upgrading and this is what I get: christopher@chris-computer:~$ sudo apt-get upgrade [sudo] password for christopher: Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be upgraded: librhythmbox-core7 1 upgraded, 0… >>> More