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Copy CodeThe code is as follows: Header (' Content-type:text/html;charset=utf-8 ');function Delfile ($fpath) {$filesize = Array ();$filepath = Iconv (' gb2312 ', ' utf-8 ', $fpath);if (Is_dir ($fpath)) {if ($dh = Opendir ($fpath)) {while (($file = Readdir ($DH))!== false) {if ($file! = '. ' $file! = ' ... ') {$filesize [] = Delfile ($fpath. ' /'. $file);}}Closedir ($DH);}/** Convenient Statistics Directory number*/$filesize [' file '] = 0;if (@rmdir ($fpath) = = = True) {echo "{$filepath} ..
1. Click "application" on our mobile phone to go to "internet", click "menu" on the right, and click "set ].2. In the settings, click "privacy" and find "delete personal data". Then we find "cache" and select "hook ].3. Click "finish" to clear the cache. The specific duration depends
Network Security: Analysis of ARP cache infection attacks (lower) Man-in-the-middle attack Hackers use ARP cache poisoning to intercept network information between two devices in your LAN. For example, we assume that hackers want to intercept communication information between your computer, 192.168.0.12, and your netwo
Lying to people, known as "social engineering", also includes strategies (specifically implemented by the convicted hacker, Kevin Mitnick), such as an employee disguised as a company that can exchange company secrets with a real employee. To cheat the computer involves many different technologies, one commonly used is--arp cache poisoning (ARP
packets, and then began to use ARP cache poisoning.First of all, I have a little understanding of the ARP cache poisoning: The two-layer Ethernet device is to identify the target IP packets through the MAC, so the IP address has a correspondence with the MAC address, and ARP
address table of switch 2 records the MAC address of host A and Host B corresponds to the interface F 0/1.Summary: From the above two pictures can be seen, the switch has the ability to dynamically learn the source MAC address, and one interface of the switch can correspond to multiple MAC addresses, but a MAC address can only one interface.Note: The MAC address of switch dynamic learning is only valid for 300S by default, and if there is no communication between the MAC addresses recorded in 3
MAC address table of switch 2 records the MAC address of host A and Host B corresponds to the interface F 0/1. Summary: From the above two pictures can be seen, the switch has the ability to dynamically learn the source MAC address, and one interface of the switch can correspond to multiple MAC addresses, but a MAC address can only one interface.Note: The MAC address of switch dynamic learning is only valid for 300S by default, and if there is no communication between the MAC addresses recorded
OverviewThe ARP command is used to manage and view the kernel IPv4 network ARP cache. It can be used to add and delete records to the cache table. ARP is an abbreviation for Address Resolution Protocol (Resolution Protocol) to find the MAC address of a given IPv4 addressusag
address table of switch 2 records the MAC address of host A and Host B corresponds to the interface F 0/1.Summary: From the above two pictures can be seen, the switch has the ability to dynamically learn the source MAC address, and one interface of the switch can correspond to multiple MAC addresses, but a MAC address can only one interface.Note: The MAC address of switch dynamic learning is only valid for 300S by default, and if there is no communication between the MAC addresses recorded in 3
communication is a unicast transmission of data frames, Host B and host C communication as described above, so the MAC address table of switch 2 records the MAC address of host A and Host B corresponds to the interface F 0/1.Summary: From the above two pictures can be seen, the switch has the ability to dynamically learn the source MAC address, and one interface of the switch can correspond to multiple MAC addresses, but a MAC address can only one interface.Note: The MAC address of switch dynam
host C to their MAC address table and send the data frame to host A in the form of unicast. 5) at this time, the communication between host A and host C is A unicast transmission of data frames. The communication between host B and host C is the same as the above process, therefore, the MAC address table of vswitch 2 records that the MAC addresses of host A and host B correspond to interface f 0/1. Conclusion: As shown in the above two figures, the vswitch has the function of Dynamically Learni
Sqlserver cache plan-Clear the cache plan that is only used once, And Cache The plan cache is very large and will only be cleared once using the cache plan, instead of the entire cache
Neighbour table overflow. Error Error message: May 16:32:28 Linux kernel:net:6746 messages suppressed. May 16:32:28 Linux kernel:neighbour table overflow. 。。。。。。。 System: Redhat As3u4 Linux Linux 2.4.21-27.elsmp #1 SMP Wed Dec 1 21:59:02 EST i686 i686 i386 gnu/linux The relevant information has been looked up. Is the problem of insufficient buffer of ARP. But there is no accurate way to improve. 1. Using ARPD, I compiled and installed ARPD an
Android applications clear data/data, clear cache, ultra-detailed, androidcache This function is available in Android native Setting to clear data and cache. The requirement is to implement this function in your App and calculate the cac
1) fflushThe compiler stipulates that Fflush is used to flush the output stream, and there is no provision for the input stream, that is, the fflush (stdin) result is unknown.This is the VC under the C program, Fflush (stdin) effective, VC write C + + program, fflush (stdin) Invalid reason.2) when writing C + + programs under VC, empty the cache using clear and ignore1 // Resets the state of the input strea
Android Development record 20-get cache size and clear cache feature Reprint Please specify: It_xiao Wizard Blog address: http://blog.csdn.net/wwj_748 PrefaceThis blog to share how to get the size of the application cache and the ability to clear the
Android development record 20-Get cache size and clear cache function, android20-Android development record 20-Get cache size and clear cache Function Reprinted Please note: IT_xiao Little Wu blog address: http://blog.csdn.net/
JSP page cache and Clear cache I. Overview The idea of caching can be applied at all levels of software layering. It is an internal mechanism that is not perceptible to the outside world. The database itself is cached, and persistent layers can be cached. (e.g. hibernate, 1-and 2-level caches) The business layer can also have a
-check=0");Sets the standard http/1.0 No-cache header.Response.setheader ("Pragma", "No-cache");%>Of course, each page contains this code, which can be cumbersome to handle related pages by means of a custom filter(b), jsp,html clear page cache1. Disable client-side caching to add a similar following to or 2. Disable caching in the Dynamic Web page of the server,
Public classDatacleanhelp {/*** * Clear this app internal cache (/data/data/com.xxx.xxx/cache) * * * *@paramContext*/ Public Static voidCleaninternalcache (Context context) {Deletedir (Context.getcachedir ()); } /*** * Clear all databases of the application (/data/data/com.xxx.xxx/databases) * * * *@paramContext
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