Just another technical day

Ping Sweep

By K4Paul February 5, 2012 March 24, 2017 0 Fingerprinting, Linux, Network Capture, Windows CMD, Command, FOR, Loop, Ping, Ping Sweep, Scan, Terminal

nmap is a great tool to use to perform a network ping sweep, however there is an effective way to perform a ping sweep with out any additional installation. A FOR loop can be used to perform consecutive pings.

Ping Sweep FOR Loop: FOR /L %i in (<Host Number Start (0-255)>,1,<Ending Host Number (0-255)>) do @ping -n 1 <Network Prefix>.%i | find “Reply”

The FOR loop is basically saying start at a network prefix with stated starting host number value and send a ping. Once a reply as been received the first loop is finished and it continues to the next loop. After each loop, the host number increases and a ping is sent to that address on the network. For example, say the network prefix is 192.168.0 and we want to ping host numbers (3-43). We would enter 3 as our beginning host number and 43 as are finishing host number. The one in between the two parameters states to increase each address by one for each running of the for loop. This allows us to ping each host on the the specified network range, thus performing a ping sweep.

Windows Example:

The following command ping sweeps addresses in range 192.168.100.0 – 192.168.100.255

FOR /L %i in (1,1,255) do @ping -n 1 192.168.100.%i | find "Reply"

The same function can be done in the Linux Terminal.

Linux Ping Sweep:

Linux is slightly different but follows almost the same pattern.

for i in {0..255}; do ping -c 1 -t 1 <IP PREFIX>.$i | grep 'from'; done

Mount a Network Drive Linux

By K4Paul February 5, 2012 May 12, 2013 0 Linux Command, Mount, Network Drives, Terminal

Mount a Linux Drive in Linux Machine:

Create a directory for mount: mkdir /<mount place>
Mount Drive: mount <Linux file system address>:/<share> /<mount place>
View Contents of mounted drive: ls /<mount place>

Mount a Windows Drive in a Windows Machine:

Create a directory for mount: mkdir /<mount place>
Mount Drive: mount -t smbfs //<file system address>/<share> /<mount place> -o username=<username>,password=<password>
View contents of mounted drive: ls /<mount place>

In a Linux machine, for a Windows Drive, it is required to state that the drive uses a Samba File System. This will notify Linux of how to read the drive.

Termainl User Commands

By K4Paul February 5, 2012 May 12, 2013 0 Linux Add User, Command, Terminal, User

List Users: cat /etc/passwd | grep “/home” |cut -d: -f1 && cat /etc/passwd | grep “/root” |cut -d: -f1

The Command ‘cat /etc/passwd | grep “/home” |cut -d: -f1’ on its own will list all the users found in the home directory. However root is not found in that directory so I added the additional statement to grep users in the /root directory, which will be root.