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Tcpdump is a http://www.aliyun.com/zixun/aggregation/17547.html "> Powerful command Line Pack Analyzer, LIBPCAP and a portable c++/c++ network traffic capture library. It is used to print the content description of a packet on a network interface and can match a given Boolean expression. It can run the-w tag, which is used to save packets to a file for later analysis, and also supports the-R flag, which can be connected from one network ...

Use MySQL, security issues can not fail to pay attention. Here are 23 things to note about MySQL prompts: 1. If the client-server connection needs to cross and pass an untrusted network, then you need to use an SSH tunnel to encrypt the connection's traffic. 2. Set password statement to modify the user's password, three steps, first "mysql-u root" landing database system, and then "mysql> update mysql.user set password = pas ...

The Web server encountered a strange problem, in the running of many apache2 processes, there will be a process, slowly fill the full memory, and then the machine is like dead, write an automatic check script, check and kill the problem of the apache2 process, the issue is mitigated, but not resolved, Because it slowly fills up the memory, Linux releases the HDD cache and periodically has performance degradation. Using RLIMITMEM parameters to limit memory, also does not work, bw_mod limit traffic also does not work today modified the script, ...

Use MySQL, security issues can not fail to pay attention. The following are 23 tips for MySQL tips: 1. If the client-server connection needs to cross and pass an untrusted network, then you need to use an SSH tunnel to encrypt the connection's traffic. 2. Set password statement to modify the user's password, three steps, first "mysql-u root" landing database system, and then "mysql> update mysql.user set password = passwor ...

What is OpenWrt? It is a Linux distribution that applies to routers. Like other Linux distributions, it also has built-in package management tools that you can install directly from a single software repository.   OpenWrt can be used in all the places where embedded Linux is needed, it has many functions, such as SSH server, VPN, traffic shaping service, even BitTorrent client. OpenWrt is not for everyone. Most people are satisfied with their own router's own firmware, but many advanced users ...

Moscrack is a cloud based WPA password cracking tool. Moscrack is a Perl application, either via Mosix cluster software or simple SSH connection, which can be http://www.aliyun.com/zixun/aggregation/13420.html "> Easy to crack WPA key on cloud computers. Cloud nodes can run any UNIX host (including Cygwin), which means that moscrack can be deployed in window ...