The latest version of Nmap For Mac is a powerful and practical port scanning software. Nmap For In the official version of Mac, users may need to hide scanning, scan beyond the firewall, or use different protocols to scan. And Nmap For Mac supports performance and reliability statistics at the same time, such as dynamic delay calculation, packet timeout and forwarding, parallel port scanning, and detection of lower level hosts through parallel ping.
matters needing attention:
stay mac The following three types of error reports are generally encountered during software download and installation. Now, the Chinese military editor is here to give you an answer. Please also watch carefully when errors are reported:
1、 “ ... The software is damaged and cannot be opened. You should move it to the wastebasket "
2、 "Can't open ... Software, because it comes from an unidentified developer "
3、 "Can't open ... Software, because Apple Unable to check if it contains malware "
When encountering the above three situations, we should:
1. First set: Open any source
two . Most software settings can be downloaded and installed normally after any source is enabled; A small part of software ios For restrictions on unsigned application permissions, you need to execute command line code to bypass application signature authentication. Therefore, it is necessary to: Execute Command Bypass ios Notarization of Gatekeeper 。
three If the above operations cannot be solved, you need to: close SIP System integrity protection 。
Nmap For Mac software features
It has three basic functions: one is to detect whether a group of hosts are online; The second is to scan the host port and sniff the network services provided; You can also infer the operating system used by the host 。 Nmap can be used to scan the LAN with only two nodes to the network with more than 500 nodes. Nmap It also allows users to customize scanning techniques. Generally, a simple ping operation using ICMP protocol can meet the general requirements; You can also probe deeply into UDP or TCP ports until the host Operating system used; All detection results can also be recorded in logs of various formats for further analysis.
Ping scan
List each host on the specified network
Detect the open port of the target host
Use UDP Ping to probe the host
TCP, SYN scanning
Determine which IP protocols the target machine supports
Detect the operating system of the target host
Nmap For Mac software features
1. Host Discovery
Used to discover whether the target host is active.
Nmap provides multiple detection mechanisms to identify hosts more effectively. For example, it can be used to list which hosts in the target network have been turned on, similar to the Ping command.
2. Port Scanning
Used to scan the port status on the host.
Nmap can identify ports as Open, Closed, Filtered, Unfiltered, Open | Filtered, and Closed | Filtered. By default, Nmap scans 1000 commonly used ports, which can cover most basic applications.
3. Version Detection
Used to identify the application and program version running on the port.
At present, Nmap can detect hundreds of application protocols. For unrecognized applications, Nmap will print the fingerprint of the application by default. If users know the application, they can submit information to the community and make contributions to the community.
4. OS detection
It is used to identify the operating system type, version number and device type of the target machine.
Nmap currently provides fingerprint databases of thousands of operating systems or devices, which can identify general PC systems, routers, switches and other device types.
5. Firewall/IDS evasion )
Nmap provides a variety of mechanisms to circumvent the screening and inspection of firewalls and IDS, so as to facilitate the covert detection of the target machine.
Basic circumvention methods include: Fragment/IP decoys/IP spoofing/MAC address spoofing Spoofing) and so on.
6. NSE Scripting Engine
NSE is one of the most powerful and flexible features of Nmap, which can be used to enhance host discovery, port scanning, version detection, operating system detection and other functions.
Nmap For Mac Instructions
Common scan types
After unpacking the compressed package of the command line version of the Chinese version of Nmap, enter the Windows command console, and then go to the directory where Nmap is installed (if you often need to use Nmap, you'd better add its path to the PATH environment variable). Without any command line arguments
。 The GUI version basically has the same functions as the command line version. Since many people prefer to use the command line version, the latter part of this article focuses on the command line version. The following four basic scanning methods are supported by the Chinese version of Nmap:
⑴ TCP connect() port scanning (- sT parameter).
⑵ TCP synchronization (SYN) port scanning (- sS parameter).
⑶ UDP port scanning (- sU parameter).
⑷ Ping scan (- SP parameter).
Scan tcp port
Preliminary preparation
Machine B uses nmap to scan machine A. Before scanning, machine A checks which ports are in use, and machine A checks the listening ports of the local ipv4.
Scan tcp ports: Use nmap on machine B to scan all ports of machine A
Nmap 10.0.1.161 - p1-65535 means to scan all the listening TCP ports from 1 to 65535 of machine A.
The - p parameter is used to specify the port range. If you do not specify the port to scan, Nmap scans from 1 to 1024 by default, plus the ports listed in nmap services
Nmap services is a database containing about 2200 services. Nmap can report which servers those ports may correspond to by querying the database, but it may not be correct.
Therefore, the correct way to scan a machine's open ports is to use the above command- p1-65535
Note that nmap has its own library, which stores some known services and corresponding port numbers. If some services are not in nmap services, nmap may not scan. This is the reason why nmap does not scan by default because some ports are already listening. You need to add the - p parameter to let it scan all ports.
Although nmap 10.0.1.161 can be directly used to scan open ports, - p1-65535 can display the most ports
The difference is that when - p is not added, ports of known protocols are displayed, but ports of unknown protocols are not displayed
If - p1-65535 is not added, the unknown service port (13306 port of machine A) cannot be scanned
Nmap For Mac FAQs
Q: What does Nmap For MacNMAP scan?
A: NMAP is a network detection and security scanner. System managers and individuals can use this software to scan large networks and obtain information about the running of that host and what services it provides.
Q: What are the basic functions of Nmap For Mac?
Answer: It has three basic functions. One is to detect whether a group of hosts are online; The second is to scan the host port and sniff the network services provided; You can also infer the operating system used by the host 。 Nmap can be used to scan the LAN with only two nodes to the network with more than 500 nodes. Nmap It also allows users to customize scanning techniques. Generally, a simple ping operation using ICMP protocol can meet the general requirements; You can also probe deeply into UDP or TCP ports until the host Operating system used; All detection results can also be recorded in logs of various formats for further analysis.
Nmap For Mac Update Log
1. Modify the bug submitted by the user
2. Add new functions
