Linux comes with a host based firewall called Netfilter. According to the official project site: netfilter is a set of hooks inside the Linux kernel t Read More
Nmap is short for Network Mapper. It is an open source security tool for network exploration, security scanning and auditing. However, nmap command co Read More
Search in Rotated Sorted Array I Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 Read More
0x01 看一条规则alert tcp any any -> any any (content:"union";http_uri;nocase;content:"select":nocase;http_uri;)下面这两条会触发哪一条?http://foo.com?id=union select h Read More
If you've worked with Django at some point you probably had the need for some background processing of long running tasks. Chances are you've used som Read More
在 It's FOSS 我们并非每天都谈论 Linux 的“命令行方面”。基本上,我更专注于 Linux 的桌面端。但你们读者中的一些人在内部调查(仅面向 It's FOSS newsletter 订阅者)中指出,你们也想学些命令行技巧。速查表也受大部分读者所喜欢和支持。 为此,我编辑了一个 Lin Read More
下述範例描述了電影同導演的多對一關係。範例中說明了從用戶定義的Python類建立數據表的方法,雙方關係例項的建立方法,以及最終查詢數據的方法:包括延遲載入和預先載入兩種自動生成的SQL查詢。 結構定義 建立兩個Python類以及DBMS中對應的數據表: from sqlalchemy import Read More
语法:wc [选项] 文件… 说明:该命令统计给定文件中的字节数、字数、行数。如果没有给出文件名,则从标准输入读取。wc同时也给出所有指定文件的总统计数。字是由空格字符区分开的最大字符串。 该命令各选项含义如下: - c 统计字节数。 - l 统计行数。 - w 统计字数。 这些选项可以组合使用。 Read More