dns probe

Do not know if you have not used to set up DNS to maximize the speed of computer network optimization, set up DNS everyone is relatively unfamiliar, because generally also rarely mentioned, because the computer is generally the default is to automatically obtain DNS, do not need us to set up, but we should have heard that the computer can be on QQ but not open th

(because the Hello World is not output at this time). When we re-compile the test.so and then execute the TMP, it will still work.4. About-fpic?The standard practice for making a shared library under Linux is to compile the. so file into location-independent code, and then build the. so file. So I'm thinking: is-fpic necessary? It is also possible to run normally without adding-fpic.A detailed explanation of the-fpic can be found in: http://www.cnblogs.com/cswuyg/p/3830703.html　Reprint please d

Solvehttp://askubuntu.com/questions/339702/network-service-discovery-disabled-what-does-this-mean-for-me/339709#339709To disable it, you must edit the file as /etc/default/avahi-daemon root:sudo -igedit /etc/default/avahi-daemonand add this line (or change it if already exists to):AVAHI_DAEMON_DETECT_LOCAL=0source:http://ubuntuforums.org/showthread.php?t=1632952Ubuntu Boot encounters-your current network has a. local domain, which we do not recommend and that is incompatible with the Avahi Netwo

*/unsigned int perslab; /* How many items per slab */void **slots; /* List of item Ptrs */ unsigned int sl_total; /* Size of previous array */unsigned int sl_curr; /* First free slot */void *end_page_ptr; /* Pointer to next free item at end of page, or 0 */unsigned int end_page_free; /* Number of items remaining at end of the last alloced page */unsigned int slabs; /* How many slabs were allocated for this class */void **slab_list; /* Array of slab pointers */uns

triggered when the two button is clicked, and when SetTimeout is set, the "set Timer" break point is triggered.Commissioning, is very important in the development of the project, not only can help us to quickly locate the problem, but also to save our development time. Master a variety of debugging tools, set when for your career development brings many benefits, but, in so many debugging means, how to choose a suitable for their current application scenario, which requires experience, need to

Python sends ICMP echo requesy request Copy Code code as follows: Import socket Import struct def checksum (source_string):sum = 0Countto = (len (source_string)/2) *2Count = 0While CountThisval = Ord (Source_string[count + 1]) *256 + ord (source_string[count))sum = sum + thisvalsum = sum 0xFFFFFFFFCount = Count + 2If Counttosum = sum + ord (Source_string[len (source_string)-1])sum = sum 0xFFFFFFFFsum = (sum >>) + (sum 0xffff)sum = sum + (sum >> 16)Answer = ~sumAnswer = answer

For you to explore the software users to detailed analysis to share the method of lifting the pairing. Method Sharing: 1, open the probe, and then click on the upper right corner of the "button", and then click on open to remove the matching friends; 2, click on the top right corner of the "three points", and then click "Release Matching"; 3, click "OK" can be done. Okay, the above information is small compiled for you to explore the softwa

For you to explore the software users to detailed analysis of the sharing of a friend circle method. Method Sharing: 1, open the probe into the software and click on the upper right corner of the "bubble", and then click "Friends Circle." 2, then click on the lower right corner of the camera, select the photo and click on the top right corner "complete." 3, edit the dynamic content and click the upper right corner "send" can be. Okay, the a

javascript| Tutorial | Browsers use JavaScript to detect plug-ins in Web browsers, but it is worth pointing out whether it works only in Netscape Navigator. The following code shows how to probe the Audio/midi type plug-in: So how do you call it on the Web? Here is the specific code: "Stopsound ()" > height= "border=" "0" > You may be familiar with some other programming languages, such as C + + or Java, an

C++0X provides a rich type trait for generic programming. However, there is no type trait for probing class members. It is difficult to implement this type trait without the help of the compiler. Here we modify the requirements appropriately: The probe class has a member of the specified name and type. In C + +, function overloading is the most common method of implementing type trait. However, the function overload is based on a type. Both the defau

server (the build rule is determined by the server). If-none-Match (in Request header): This field informs the server browser of the unique identification of the cached data when the server is requested again. when the server receives the request, it finds that if-none-match, which is different from the unique identity of the requested resource, returns the status code 200, returns the resource again, and returns the status code 304, telling the browser to continue using the saved cache.Note

Pre-Erection Preparation:To set up a DNS server, you must install a software program that provides a DNS service, the BIND software, that can be installed using the following command:Yum install-y bind-chroot Bind-utis 1. Modify the master configuration file/etc/named.confThis server is relatively simple to set up, that is, in fact, this [so-called DNS ser

In the previous blog post we introduced several indispensable records in DNS servers, including a, NS, and SOA records. In this blog post we will continue to introduce several other common DNS records, I hope you can understand the DNS helpful.Four MX recordMX records are also known as Mail Exchanger Records, and MX records are used to indicate which server is

DNS domain Name service and build cache DNS server detailed (2)1.DNS Service Installation: BIND, full name is Berkeley Internet name Domain, this software is maintained by ISC/etc/named.conf: The main function is to define the working properties and areas of the bind process/etc/rndc.key: Full name Remote name Domain Controller, primary storage key file/etc/rndc.

"Experimental description"Experimental environment: Add a server ns2.test.com, IP 192.168.0.112;Experimental purpose: The new server is configured to 192.168.0.111 this primary DNS server from the DNS server;" conditions for implementing master-Slave Synchronization"1, the master-slave server time must be synchronized, using NTP and time server periodic synchronization time;[Email protected] ~]# vim/etc/cro

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 51.144.198.99 is used for testing, the system always prompts that the request times out and returns the correct resolution. We suspect that the firewall we are usi

Secondary DNS server configuration******************The purpose of the secondary server: First, as a backup of the primary DNS server, the second is to share the load of the primary DNS server.The configuration of a secondary DNS server is relatively straightforward, because its zone database files are periodically cop

Have you ever encountered a DNS error or can be on the QQ but not open the Web page situation? Or is it too slow to open the page? These could be DNS setup errors or no settings, so here's how to troubleshoot DNS errors and how to set up DNS to navigate the web smoothly. Tools/raw Materials Windows Xp/vista Treewalk

DNS is the basic service of the internet, and bind is the most popular open-source DNS software. Because it is very popular, it is very aggressive. Therefore, we need to build a secure DNS server. There are several measures to build a secure DNS Service (for basic bind compilation and installation and configuration, re

Today when looking at the source code of a website found rel= "dns-prefetch" href= "//static.tuweia.cn/" > A little curious about dns-prefetch, Because more than once to see, today finally can't help to see what he is what technology? Here is a brief description of Dns-prefetch found on the internet.DNS implements domain-to-IP mapping. Through the domain name to