" table. Select the "Prevent cache pollution" option and restart the DNS server.
6. Make ddns use only secure connections
Many DNS servers accept dynamic updates. The Dynamic Update feature enables these DNS servers to record DHCP-enabled hostsHost Name and IP address. DDNS can greatly reduce the management cost of the DNS administrator. Otherwise, the Administrator must manually configure the DNS resource
. "Peanut shells" support common telephone lines, ISDN, XDSL, cable TV networks, twisted pair wires, and other access service lines that can provide real Internet IP addresses, regardless of whether the IP address obtained by the connection is dynamic or static.
Peanut shell is a free Desktop Domain Name management, dynamic domain name resolution (ddns) and other functions as one of the client software.
The peanut shell client provides users with
. Protect DNS from cache pollution
DNS Cache pollution has become a common problem. Most DNS servers can store DNS query results in the cache before they reply to the requesting host. DNS high-speed cache can greatly improve the DNS query performance within your organization. The problem is that if your DNS server's high-speed cache is "contaminated" by a large amount of fake DNS information, users may be sent to malicious sites rather than the websites they originally wanted to visit.
Most DNS
This article describes how to automatically update dns resolution for dnspod implemented by python. For more information, see the following code:
Def ddns ():"""Update ddns with the current ip address"""Headers = {"Content-type": "application/x-www-form-urlencoded", "Accept": "text/json "}Conn = httplib. HTTPSConnection ("dnsapi.cn", timeout = 30)Conn. request ("POST", "/Record.
Wake on the network, WOL. Simply speaking, the computer is in the shutdown state, you can send special packets to the network card via the Internet, the network card after receiving the specified package, turn on the computer. WOL requires hardware to support this feature, the current market mainstream Ethernet card support WOL function, and wireless network card to find a number of not found to support the function of the wireless card.I have successfully implemented the wake on LAN function at
Enter the melogin.cn (or 192.168.1.1) login router interface in the browser's address bar and click on the
Advanced Settings in the upper-right corner of the page, as shown below:
Click on the advanced user > Virtual Server to enter the Setup interface, as shown below:
2 , adding mapping entries
Click Add , as shown below:
Enter the parameters for the server you want to map and click Save as follows:
/dhcpd/dhcpd.leasesThree. Example of a configuration[Email protected] ~]# cat/etc/dhcp/dhcpd.conf## DHCP Server Configuration file.# See/usr/share/doc/dhcp*/dhcpd.conf.example# See dhcpd.conf (5) Mans page## The Ddns-updates-style parameter controls whether or not the server would# attempt to does a DNS update when a lease is confirmed. We default to the# Behavior of the version 2 packages (' None ', since DHCP v2 didn ' t# has support for
Black more than 70 surveillance cameras are so simple
Recently, a security researcher found that surveillance cameras sold by more than 70 vendors are vulnerable to Remote Code Execution (RCE) attacks.
According to the Rotem Kemer study by security researcher, surveillance cameras sold by more than 70 vendors are vulnerable to Remote Code Execution (RCE) attacks.
The researchers noted that the products being sold by the supplier use the same firmware that is vulnerable to RCE attacks.
In the "
First, the actual use of peanut rods wiring method:1. Connect the peanut wand and the router's LAN port with a network cable first2. Power the peanut wand with an external USB power supplyPeanut Rod-USB power supply (optional):Peanut sticks do not have their own power supply, but we picked out the quality of the better USB power.Note: Be sure to use a stable external USB power supply to ensure proper use of the peanut stickSecond, peanut stick set use method:1. Enter www.oray.cn in the browser t
A few days ago, I saw yuanyouFarmer's uncleThe C # Video Monitoring series has been written to encapsulate hikvision boards. The projects involved in these days have entered the subsequent stages, and performance testing is now underway. test the stability and concurrency of the Streaming Media Server. Let's take a look at the effects of-concurrent video processing. The Department does not have so many computers for testing and simply writes a simulated Client AccessProgramTo test the server pro
The DVR is configured with a m clock speed of arm11 and M memory, half of which are allocated to the video decoder. The kernel and other processes also occupy a lot of memory, leaving less memory for Qt to run. Later, we transplanted QT browser and QT WebKit to the DVR for map display. Although some functions have been cropped out, the running is still very card, and the QT interface process is easy to ente
These days, we have been working on dynamic library testing. H has written a written dynamic library-the library of the preprocessing module. The video processing project must be connected to the actual situation for testing. Requirements: 1. Connect the actual camera, read the real-time data stream, and save it to the dual-loop linked list; 2. Test the functional effects of Background Modeling; 3. Pre-processing the four data (image) display results; 4. Test the real-time processing of mul
Copy dvrrdk to/usr/local/dvrrdk_03.00.00.00/target/rfs_816x and rename it DVR.
For example, after completing the QT environment configuration (refer to the LZ article above), open qtcreator "file"-> "open file or project"
Select the. Pro file to open the project. Click "project" and set it as follows:
"Tools"-> "build and run"
"Linux device"
Compile after setting
Copy the generated executable file to the board
Start Development Board
Go to/
, The process by which the device automatically starts the malware after it restarts.5. Developer Error reading chip maker Debug document leads to new kernel vulnerabilityThe U.S. computer Security Emergency Response Center (hereinafter referred to as CERT) released a recent announcement that Windows, MacOS, Red Hat, Ubuntu, SUSE Linux, FreeBSD, Systems such as VMware and Xen are likely to be affected by a major security vulnerability (CVE-2018-8897), due to the fact that operating system develo
Security Emergency Response Center (hereinafter referred to as CERT) released a recent announcement that Windows, MacOS, Red Hat, Ubuntu, SUSE Linux, FreeBSD, Systems such as VMware and Xen are likely to be affected by a major security vulnerability (CVE-2018-8897), due to the fact that operating system developers misinterpret the debug documentation of both Intel and AMD chip vendors. 6. high-risk vulnerability can be caused to the Sea Conway video camera,
, such as Sif, CIF, 4cif, and D1, are often used in video capture cards, compression cards, and DVR products. In fact, due to the lack of industry standards and standards in the security industry, many terms in the industry come from standards in other industries. Therefore, CIF, Sif, D1, and other words are not only from different sources, even nouns have been confused and confused.
If we look back at the source, the video surveillance industry for s
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