Recently, my colleague reported that during the NSLookup test on the Intranet, I found that when I used the Intranet DNS server 192.168.1.1 for resolution, the DNS server responded very quickly and did not
Any errors. However, when the DMZ server 51.
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
Some commands for configuring the DNS server and nslookup in Linux-Linux Enterprise Application-Linux server application information. The following is a detailed description. There are two email servers: 192.168.1.1 (B .test.cn in windows) and 192.16
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
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
Article Title: Set up a DNS server in Linux (3 ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
4. standard
Check whether the dns server change takes effect.First, let's take a look at the domain name resolution sequence priority: 1. Local DNS Cache2. Local Hosts file3. DNS Server View the local DNS Cache: ipconfig/displaydns Clear local DNS Cache:
Start of Authority authorization Start of SOA marking area data, define the parameter Name Server that affects the entire area
NS indicates the Domain Name Server
Address
A. Convert the host name to the address
Pointer PTR to convert the
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