0 x00: problems

to learn the use of the system nmap, run a simple command :

nmap -sC -p1- www.landgrey.cn

error: “dnet: Failed to open device eth1”
has not reported such a mistake before, I checked the data, found that it is likely to be related to winpcap drive .

0x01: resolution

and then downloaded
Win10Pcap 10.2.5002 Windows 32bit and 64bit Installer
after the installation, found the scanning process reported another error……

FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.
FATAL Bad Memory Block.

is installing two winpcap incompatible?Uninstall the old version of winpcap, and then uninstall after what seems to remind, also did not pay attention to, it automatically ignored ~
and then run again, found that I did not install winpcap, it seems that this Win10Pcap not ah, and then uninstall Win10Pcap, there is a reminder when uninstall, this time just think of carefully look, found is not found when uninstall

C:\Windows\SysWOW64\Packet.dll

find Packet. DLL changed to Packet. DLL. Bak… Nima, also do not know is the ghost that anti-virus software makes, after restoring original name, hint did not find

again

C:\Windows\SysWOW64\wpcap.dll

a check found that the name is also changed to wpcap.dll. Bak. After the recovery, the normal uninstall.
then go to the official website to download the latest version of wincap

After the

installation, run the original command and find that the problem has been resolved.

nmap – sT 192.168.0.184

Stats: 0:00:03 elapsed; 0 hosts completed (1 up), 1 undergoing Connect Scan
Connect Scan Timing: About 4.85% done; ETC: 16:22 (0:00:39 remaining)
Nmap scan report for 192.168.0.184
Host is up (0.00071s latency).
Not shown: 991 filtered ports
PORT    STATE SERVICE
25/tcp  open  smtp
110/tcp open  pop3
119/tcp open  nntp
143/tcp open  imap
465/tcp open  smtps
563/tcp open  snews
587/tcp open  submission
993/tcp open  imaps
995/tcp open  pop3s

0 x02: postscript

must not ignore some important tips to solve the problem in the process of solving the problem because of haste.
also do not know how DLL file into DLL. Bak file, fortunately did not give me delete ×_×