1 DNS IntroductionDNS (domain Name System) can provide valuable data during the detection process, the basic function of DNS is to convert the domain name to an IP address. (If you don't know much about DNS, it's going to take a lot of effort!) Now
read the basic requirements of this article:1. The use of the cmd command has a certain basis2. The basic principles of DNS and common concepts have a certain understanding, such as host, alias, forward lookup zone, reverse lookup zone, and so on.3.
1. Network Tools: ifconfig, ping, netstate, Redhat command and graphical settings of ip, finger, nslookup, ifconfignetstateZookeeper
1 ip ad view Nic ID
2. View Nic information in ifconfig
3. Disable the NIC
4. Start the NIC
5. configure a
1.backgroundThe temporary environment for the work is the CENTOS7 server VM11 by the virtual machine, with the oracle11g (11.2.0.1.0) normally accessed and saved as a snapshot. Centos7 ip192.168.44.55, Gateway 192.168.44.2Since laptops often travel
Passive Information collectionFeatures:Based on open channelNo direct contact with the targetAvoid leaving all traces.Standard Reference--osint:U.S. militaryNorth Atlantic Treaty Organization noun explanationdns--domain Name System domain Name
Usually collect some commands for easy use.1:LS-LRT Sort by Time show2:nslookup View DNS resolution3:lsof-p Process NumberLsof ' which httpd '//That process is using Apache executable fileLSOF/ETC/PASSWD//The process is taking
Netstat Command Overview:Netstat is a very useful tool for monitoring TCP/IP networks, which can display routing tables, actual TCP network connections, TCP and UDP snooping, process memory management, and status information for each network
Cause: The company network interface to do the interface authentication, the virtual machine bridge to the physical network card can not complete authentication network access, but can only say that the virtual machine network mode changed to NAT
Debian Linux has powerful network functions, and the network configuration files used are different from those of other Linux distributions. 1. the basic network command 1.1ifconfigifconfig is used to display network interface information in the
Under Linux, there is a tool called Nslookup, which uses the reverse DNS protocol to query the IP address for the corresponding hostname.Like what:Nslookup 10.0.0.5You can query the corresponding hostname for this IP.Nslookup
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.