Jeffrey’s Blog

TCP的状态变迁图

TCP正常连接建立和终止所对应的状态

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一. 基本安装
官方网站: http://www.lighttpd.net
./configure –prefix=/zhangjianfeng.com/app/lighttpd-1.4.19l
mkdir /zhangjianfeng.com/app/lighttpd-1.4.19/conf/
cp doc/lighttpd.conf /zhangjianfeng.com/app/lighttpd-1.4.19/conf/
手工启动方法:  /zhangjianfeng.com/app/lighttpd-1.4.19/sbin/lighttpd -f /zhangjianfeng.com/app/lighttpd-1.4.19/conf/lighttpd.conf
服务控制脚本:  安装包自带了一个脚本, doc/rc.lighttpd, Continue Reading ...

## network configurations
net.ipv4.ip_forward = 0 # IP packet forwarding
net.ipv4.tcp_tw_reuse=1
net.ipv4.tcp_tw_recycle=1
net.ipv4.tcp_fin_timeout=30  #60,每条至多占 1.5K 的内存
net.ipv4.tcp_keepalive_time=1800 #7200
net.core.netdev_max_backlog=3000 #1000每个网络接口接收数据包的速率比内核处理这些包的速率快时，允许送到队列的数据包的最大数目
net.ipv4.tcp_max_syn_backlog=4096  #1024 增加TCP Continue Reading ...

IOZONE学习笔记
一. 安装
1.安装gnuplot
找到安装盘中gnuplot-4.0.0-20.2.i586.rpm ，并安装
或直接到主页http://www.gnuplot.info/
(如果不安装,执行Generate_Graphs时会出现./Generate_Graphs: line 30: gnuplot: command not found报错)

2.安装iozone
到http://www.iozone.org/下载最新版
cd /zhangjianfeng/tools/ && wget http://www.iozone.org/src/current/iozone3_308.tar
tar xf iozone3_308.tar && Continue Reading ...

SNMP MIBs, OIDs Overview

MIB stands for Management Information Base and is a collection of information organized hierarchically. These are accessed using a protocol such as SNMP. There are two types of MIBs: scalar and tabular. Scalar objects define a single object instance whereas tabular objects define multiple related object instances grouped in MIB tables.
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lighttpd安装配置
下载: http://www.lighttpd.net/download
./configure –prefix=/jeffrey/app/lighttpd-1.4.19  && make && make install
mkdir /jeffrey/app/lighttpd-1.4.19/conf/
mkdir /var/log/lighttpd
cp doc/lighttpd.conf /jeffrey/app/lighttpd-1.4.19/conf/
vi /jeffrey/app/lighttpd-1.4.19/conf/lighttpd.conf

server.modules              = (
…..
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利用服务器的几个调优技巧，让 MySQL 服务器飞速运行
如今，开发人员不断地开发和部署使用 LAMP（Linux®、Apache、MySQL 和 PHP/Perl）架构的应用程序。但是，服务器管理员常常对应用程序本身没有什么控制能力，因为应用程序是别人编写的。这份 共三部分的系列文章 Continue Reading ...

1. iscsi-target 服务器端
(1)安装软件
rpm -ivh iscsitarget-0.4.13-14.19.i586.rpm  #SLES10SP2
* windows系统下有一个叫 starwind 的软件
(2)修改配置文件
vi /etc/ietd.conf
Target iqn.2001-04.com.example:storage.disk2.sys1.xyz.sda3
Lun 0 Path=/dev/sda3,Type=fileio
Target iqn.2001-04.com.example:storage.disk1.test.file1tb
Lun 0 Continue Reading ...

环境: SLES10-SP1+Apache-2.0.63+php-5.2.6+SVN-1.4.6
1. 编辑php模块支持

2. apache原svn配置如下
<location>
DAV svn
SVNParentPath /jeffrey/data/svnroot/repository/
AuthType Basic
AuthName “Subversion repository”
AuthUserFile htpasswd/.htpasswd.users
AuthzSVNAccessFile /jeffrey/data/svnroot/repository/conf/authz
Require valid-user
</location>

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1.apache安装
./configure –prefix=/usr/local/apr && make && make install
./configure –prefix=/usr/local/apr-util –with-apr=/usr/local/apr/ && make && make install
./configure –prefix=/jeffrey/app/apache-2.0.63 –enable-so –enable-rewrite –enable-dav –with-apr=/usr/local/apr –with-apr-util=/usr/local/apr-util && make && make install

2. svn
tar jxf Continue Reading ...