<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[Hey_Linux的专栏]]></title><description><![CDATA[I'm not Coder]]></description><link>https://blog.youkuaiyun.com/Hey_Linux</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Hey_Linux]]></copyright><item><title><![CDATA[Mysql服务器设置及技巧]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41855741</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41855741</guid><author>Hey_Linux</author><pubDate>Wed, 10 Dec 2014 23:33:34 +0800</pubDate><description><![CDATA[1、4中字符集的问题
vi /etc/my.cnf
default-character-set=utf8
check-set-server=utf8
collation-server=utf_general_ci


2、slow log慢查询日志问题
vi /etc/my.cnf
log_slow_queries=slow.log
long_query_time=5]]></description><category></category></item><item><title><![CDATA[Mysql 索引优化]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41833249</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41833249</guid><author>Hey_Linux</author><pubDate>Tue, 09 Dec 2014 23:28:05 +0800</pubDate><description><![CDATA[1、索引的存储分类
MyISAM存储引擎的表数据和索引是自动分开存储的，各自是独一的一个文件
Innodb存储引擎的表数据和索引是存储在同一个表空间里面，但可以由多个文件构成。
Mysql 目前不支持函数索引，但是能对列的前面某一部分进行索引
例如name字段，可以只取name的前4个字符进行索引，可降低索引文件大小。
Mysql> create index ind_company_na]]></description><category></category></item><item><title><![CDATA[Mysql 语句优化]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41810087</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41810087</guid><author>Hey_Linux</author><pubDate>Mon, 08 Dec 2014 21:43:21 +0800</pubDate><description><![CDATA[1、通过show status命令了解各个sql语句的执行频率
格式：Mysql> show [session | global] status;
注：session表示当前连接
       global表示自数据库启动至今
eg：Mysql> show status;
       Mysql> show global status;
       Mysql> show stat]]></description><category></category></item><item><title><![CDATA[Mysql 基础操作]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41790887</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41790887</guid><author>Hey_Linux</author><pubDate>Sun, 07 Dec 2014 21:08:15 +0800</pubDate><description><![CDATA[1、复制表结构+表数据
Mysql> create tables t2 like t1;
Mysql> insert into t2 select * from t1; 
2、mysql索引
a、Alert Table 用来创建普通索引、Unique唯一索引(当前列数值不可重复)或Primary Key 主键索引
Mysql> alter table table_name add ind]]></description><category></category></item><item><title><![CDATA[Squid 代理服务器配置]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41623997</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41623997</guid><author>Hey_Linux</author><pubDate>Sun, 30 Nov 2014 16:46:40 +0800</pubDate><description><![CDATA[1、普通代理服务
安装squid软件包
yum -y Install squid*


2、vi /etc/squid/squid.conf 常用配置项
http_port  10.10.0.100:3128   //设置代理IP 和 代理端口 （代理服务器双IP）
cache_mem 64MB  //缓存内存大小
maximum_object_size 4096KB  //缓存池]]></description><category></category></item><item><title><![CDATA[Linux 常用操作命令技巧]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41596951</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41596951</guid><author>Hey_Linux</author><pubDate>Sat, 29 Nov 2014 16:55:39 +0800</pubDate><description><![CDATA[Vi 编辑器技巧
删除整行，移动光标到所在行，然后dd
复制操作    yy命令复制当前整行的内容到vi缓冲区，5yy就是复制5行，粘贴缓冲区中的内容，用p
d$ 删除以当前字符开始的一行字符
ndd 删除以当前行开始的n行
x 或 X 向后删除一个字符
D 删除到行尾
查找字符串，输入/search ,再按n 向下查找
跳转到指定行，输入：100，跳转到100行
ctrl +l]]></description><category></category></item><item><title><![CDATA[Centos Install Nginx PHP]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41595525</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41595525</guid><author>Hey_Linux</author><pubDate>Sat, 29 Nov 2014 14:25:51 +0800</pubDate><description><![CDATA[安装方法参考：https://www.digitalocean.com/community/tutorials/how-to-install-linux-nginx-mysql-php-lemp-stack-on-centos-7
1、创建Nginx.repo文件，安装Nginx

新建：/etc/yum.repos.d/nginx.repo
输入如下内容保存：
[nginx]
nam]]></description><category></category></item><item><title><![CDATA[Install GeoIP For Apache]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41595473</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41595473</guid><author>Hey_Linux</author><pubDate>Sat, 29 Nov 2014 14:20:14 +0800</pubDate><description><![CDATA[使用Yum安装
yum install php-pecl-geoip

若上面命令无法安装请添加源，再安装
rpm -ivh http://ftp.jaist.ac.jp/pub/Linux/Fedora/epel/6/i386/epel-release-6-8.noarch.rpm
配置：
安装完成后，打开/etc/php.ini
文件末尾处添加：extension=geoip.s]]></description><category></category></item><item><title><![CDATA[项目管理软件 Redmine 安装]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41595159</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41595159</guid><author>Hey_Linux</author><pubDate>Sat, 29 Nov 2014 13:37:30 +0800</pubDate><description><![CDATA[1、配置安装环境，安装所依赖的软件。
必备软件：Centos、mysql、Ruby、Apache、Redmine。
yum update
yum -y groupinstall "Development Tools"
yum -y install ntp zlib zlib-devel sqlite-devel httpd mysql-server mysql-devel curl-devel]]></description><category></category></item><item><title><![CDATA[Apache 限制下载速度与并发数]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41594077</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41594077</guid><author>Hey_Linux</author><pubDate>Sat, 29 Nov 2014 11:12:00 +0800</pubDate><description><![CDATA[Apache 限制下载速度与并发数]]></description><category></category></item><item><title><![CDATA[Linux 上传 下载 文件]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41593935</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41593935</guid><author>Hey_Linux</author><pubDate>Sat, 29 Nov 2014 10:58:50 +0800</pubDate><description><![CDATA[Rsync和Scp命令。

利用Rsync上传文件到服务器

利用scp 远程上传下载文件/文件夹]]></description><category></category></item><item><title><![CDATA[漏洞修复]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41593801</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41593801</guid><author>Hey_Linux</author><pubDate>Sat, 29 Nov 2014 10:42:59 +0800</pubDate><description><![CDATA[bash漏洞修复

网站SSLv3 For Poodle 漏洞

Wordpress xmlrpc.php文件攻击导致崩溃漏洞]]></description><category></category></item><item><title><![CDATA[Linux 下Wordpress 无法安装插件]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41593429</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41593429</guid><author>Hey_Linux</author><pubDate>Sat, 29 Nov 2014 10:04:14 +0800</pubDate><description><![CDATA[Wordpress 无法安装插件
无法显示样式]]></description><category></category></item><item><title><![CDATA[Wordpress 修改后台管理员登陆地址]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41593397</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41593397</guid><author>Hey_Linux</author><pubDate>Sat, 29 Nov 2014 10:00:30 +0800</pubDate><description><![CDATA[1. 1、 拷贝根目录下的wp-login.php文件命名为wp-login.php.backup，把原文件重命名为admin.php。
linux一键全部替换命令（下同）：
sed -i "s/wp-login.php/managewp.php/g"  /home/youwebsite.com/public_html/admin.php


2. 打开wp-includes/ 目录下的]]></description><category></category></item><item><title><![CDATA[Linux Sed 命令]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41580775</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41580775</guid><author>Hey_Linux</author><pubDate>Sat, 29 Nov 2014 00:06:39 +0800</pubDate><description><![CDATA[每分钟 记录 apache并发数的脚本]]></description><category></category></item><item><title><![CDATA[linux 下 grep 分析 Apache 服务器日志]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41577375</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41577375</guid><author>Hey_Linux</author><pubDate>Fri, 28 Nov 2014 16:33:57 +0800</pubDate><description><![CDATA[日志分析整理 Grep 日志整理




#### 以下代码，若出现无法使用，请根据底下图片，更改参数。根据apache日志格式修改


1, 查看 apache 进程:
ps aux | grep httpd | grep -v grep | wc -l


2, 查看 80 端口的 tcp 连接:
netstat -tan | grep "ESTABLISHED" |]]></description><category></category></item><item><title><![CDATA[Mysql 主从复制+数据恢复]]></title><link>https://blog.youkuaiyun.com/Hey_Linux/article/details/41555803</link><guid>https://blog.youkuaiyun.com/Hey_Linux/article/details/41555803</guid><author>Hey_Linux</author><pubDate>Thu, 27 Nov 2014 22:00:18 +0800</pubDate><description><![CDATA[给服务器设置授权账户
设置user账户能从10.10.0.1服务器登陆本机，且拥有所有权限
Mysql>grant all on *.* to user@10.10.0.1 indentified by ‘password’

(密码必须有引号)


user账户只有备份权限
Mysql>grant replication slave on *.* to 
user@10.10.]]></description><category></category></item></channel></rss>