iptables 基本命令使用举例

03月 3rd, 2008 xiao H Posted in 精品文档, 系统网络安全 No Comments »

原文地址:http://www.linuxsky.org/doc/admin/200803/262.html

一、链的基本操作

1、清除所有的规则。

1)清除预设表filter中所有规则链中的规则。

# iptables -F
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GRUB入门

03月 1st, 2008 xiao H Posted in 精品文档 1 Comment »

什么是 GRUB?
GRUB 是引导装入器 — 它负责装入内核并引导 Linux 系统。GRUB 还可以引导其它操作系统,如 FreeBSD、NetBSD、OpenBSD、GNU HURD 和 DOS,以及 Windows 95、98、NT 和 2000。尽管引导操作系统看上去是件平凡且琐碎的任务,但它实际上很重要。如果引导装入器不能很好地完成工作或者不具有弹性,那么就可能锁住系统,而无法引导计算机。另外,好的引导装入器可以给您灵活性,让您可以在计算机上安装多个操作系统,而不必处理不必要的麻烦。 Read the rest of this entry »

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linux高负载下彻底优化mysql数据库

02月 26th, 2008 xiao H Posted in 服务器应用, 精品文档 No Comments »

作者:未知 来源:linuxsky.org

同时在线访问量继续增大 对于1G内存的服务器明显感觉到吃力严重时甚至每天都会死机 或者时不时的服务器卡一下 这个问题曾经困扰了我半个多月MySQL使用是很具伸缩性的算法,因此你通常能用很少的内存运行或给MySQL更多的被存以得到更好的性能。

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GNU LESSER GENERAL PUBLIC LICENSEVersion 3

02月 17th, 2008 xiao H Posted in 开源协议, 精品文档 No Comments »

GNU LESSER GENERAL PUBLIC LICENSEVersion 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc.
Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
This version of the GNU Lesser General Public License incorporates the terms and conditions of version 3 of the GNU General Public License, supplemented by the additional permissions listed below. Read the rest of this entry »

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GNU GENERAL PUBLIC LICENSE Version 2 (en)

02月 17th, 2008 xiao H Posted in 开源协议, 精品文档 No Comments »

GNU GENERAL PUBLIC LICENSE
Version 2, June 1991

Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
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GNU GENERAL PUBLIC LICENSE Version 2

02月 17th, 2008 xiao H Posted in 开源协议, 精品文档 No Comments »

声明
  This is an unofficial translation of the GNU General Public License into Chinese. It was not published by the Free Software Foundation, and does not legally state the distribution terms for software that uses the GNU GPL–only the original English text of the GNU GPL does that. However, we hope that this translation will help Chinese speakers understand the GNU GPL better.

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如何使用大于2T的块设备

02月 16th, 2008 xiao H Posted in 硬件外设, 精品文档 No Comments »

inux在内核中选择支持Large Block Device时,是可以使用大于2T的块设备的。但是当使用Fdisk来查看这个块设备时,却发现最大只能显示出来2T的空间,而且使用其他的分区工具时也很难使用大于2T的块设备。 Read the rest of this entry »

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SYN Cookie Firewall

02月 12th, 2008 xiao H Posted in 精品文档, 系统网络安全 1 Comment »

原文在:http://www.bronzesoft.org/projects/scfw/ 翻译:包子

本文介绍了4个概念
一:介绍SYN
二:什么是SYN洪水攻击
三:什么是SYN cookie
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