Press enter to begin your search Ping Sweeps and Port Scans Essay 0 This study is to supply penetration on villainous computing machine activities called ping expanses and port scans as a petition from direction.
Ping stands for Packet Internet Groper. It is commonly used to find whether a machine is alive on the network. I will be doing a dedicated post on the working of PING.
An important fact to note here is that, a machine can also be configured to not to respond to a ping request for security reasons, in such cases you need to apply some different techniques to find out whether a target host is alive or not.
In this post we will be discussing ping sweep. Ping sweep is just a technique that can be used to find out which hosts are alive in a network or large number of IP addresses. In fact i must say that, you can use ping sweep to ping large number of hosts in one go.
Which means that, if you have a network of Different tools can be used to do ping sweeping. Nmap is an awesome tool used to do port scanning.
It can also be used to do ping sweeping. Lets have a look at how to do it. Nmap will only do a ping scan when this option is only used.
The output of the above command is saying thatnmap has scanned around ip addresses and it has found 4 hosts to be up.
If you want to scan only a limited number of hosts and not the entire network, then you can do that, by the following command. By specifying the range. You can install fping throuh yum. However fping can be used to send ICMP echo request to a large number of hosts. It does not work like ping, because it sends an echo request to a host, and move on to the next host, not waiting for the echo reply.
This is done in a round robin fashion. By default if you ping a large number of hosts using fping command, it assumes a host as unreachable if there no echo reply from the target host. One IP per line is the way the file should be made. In between the alive and unreachable message result shown above, there are multiple echo request send messages, which i have shown in the above example.
You can also mention the network address, or range of IP address as an argument to fping command, to do ping sweeping as shown below. Which will prevent ping Sweeping.
So in such cases nmap tool has a good option to determine which hosts are alive in the network. It is called as tcp ping scan. Ping Sweeping with simple Bash for loop You can also do a simple ping sweeping by using for loop in bash. However you cant bypass or do a tcp scan to determine whether the host alive, using this technique.
An important thing to consider here is that, its perfectly alright to do ping sweeping for testing purposes if you are the network admin of that network. However its not legitimate, to do a network ping sweep in a network for which you do not have authorization.Block Ping Sweeps and Port Scans Hi, On my Palo Alto's i can add a zone protection profile where the Firewall will block the IP of any outside devices that ping sweeps or port scans me.
A port scan or portscan is a process that sends client requests to a range of server port addresses on a host, with the goal of finding an active port; this is not a nefarious process in and of itself.
Jul 16, · Your boss has just heard about some nefarious computer activities called ping sweeps and port scans. He wants to know more about them and what the impact of Status: Resolved.
Jul 16, · These are ping sweeps, and port scans. A ping sweep allows a hacker to check on which computers are active and being used. A port scan searches for open ports which can be used to breach a network.
Mar 06, · Best Answer: In any case, the main point is the reason people run port scans: to find security vulnerabilities. If you have a good firewall (preferably hardware) then you shouldn't normally have a problem with it.
The same goes for ping. A firewall able to block DOS and other similar attacks would be sufficient to avoid worrying about a ping vetconnexx.com: Resolved. Free Essay: Ping Sweeps & Port Scans: Potential Dangers and Defense Strategies THIS IS MY ORIGINAL WORK, PLEASE DO NOT .