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<h4 id="2015年正月初五,试图寻找真实的自己,Mark!"><a href="#2015年正月初五,试图寻找真实的自己,Mark!" class="headerlink" title="2015年正月初五,试图寻找真实的自己,Mark!"></a>2015年正月初五,试图寻找真实的自己,Mark!</h4> | ||
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<title>Linux下mysql忘记root密码</title> | ||
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<h3 id="Linux下mysql忘记root密码"><a href="#Linux下mysql忘记root密码" class="headerlink" title="Linux下mysql忘记root密码"></a>Linux下mysql忘记root密码</h3><p>/etc/my.conf的[mysqld]段加上skip-grant-tables</p> | ||
<pre><code>[mysqld] | ||
datadir=/var/lib/mysql | ||
socket=/var/lib/mysql/mysql.sock | ||
user=mysql | ||
old_passwords=1 | ||
skip-grant-tables | ||
</code></pre><p>重启mysql服务就可以更新user标里面的password了<br>update mysql.user set password = password(‘root’) where user=root<br>就可以,然后还原/etc/my.conf</p> | ||
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<title>rsync实现Linux服务器之间增量备份</title> | ||
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<h3 id="rsync实现Linux服务器之间增量备份"><a href="#rsync实现Linux服务器之间增量备份" class="headerlink" title="rsync实现Linux服务器之间增量备份"></a>rsync实现Linux服务器之间增量备份</h3><p>可以用于线上服务器同步代码。</p> | ||
<h4 id="主服务器"><a href="#主服务器" class="headerlink" title="主服务器"></a>主服务器</h4><p>rsync为C/S架构,一台主服务器,可以有多台从服务器</p> | ||
<p>1.主服务器(需要备份的服务器):配置好yum源,安装rsync服务端</p> | ||
<pre><code>#yum install rsync | ||
</code></pre><p>2.创建rsync 同步目录/data,此目录里面的内容将被同步到从服务器上</p> | ||
<pre><code>#mkdir /data | ||
</code></pre><p>3.创建权限认证文件,此文件用于存放从服务器验证身份,格式为“username:password”,该用户与操作系统上面的用户没有一点关系,所以系统上不需要创建此用户。文件可使用任意名称,最好容易识别</p> | ||
<pre><code>#vim /etc/rsyncd.pass | ||
wujingchao:123456 | ||
</code></pre><p>安全起见密码文件权限需修改为600</p> | ||
<pre><code>#chmod 600 /etc/rsyncd.pass | ||
</code></pre><p>4.创建 rsync 配置文件/etc/rsyncd.conf,默认是没有这个文件的</p> | ||
<pre><code>uid=root #该选项指定当该模块传输文件时守护进程应该具有的uid,配合gid选项使用可以确定rsync具有访问那些文件夹的权限,默认值是"nobody",我们可以根据相应的需要进行配置。 | ||
gid=root #该选项指定当该模块传输文件时守护进程应该具有的gid,默认值是”nobody”。 | ||
use chroot=no #不使用chroot | ||
max connections=20 #设置最大连接数,默认为0,即无限制。这里设置为20. | ||
strict mode =yes #设置是否检查口令文件的权限 | ||
pid file=/var/run/rsyncd.pid #指定rysnc进程的pid文件位置 | ||
lock file=/var/lock/rsync.lock #指定支持max connections的锁文件 | ||
log file=/var/log/rsyncd.log #指定 rsync日志输出路径 | ||
[your_model_name] #*模块名,可使用任意名称* | ||
path=/data/ #*源目录路径* | ||
comment=Test rsync #模块描述 | ||
ignore errors #出现I/O错误时可忽略。 | ||
read only=no #是否只读,设置为no时客户端可上传文件。 | ||
write only=no #设置为no 时客户端可下载文件。 | ||
hosts allow=192.168.0.100 #*允许访问主机* | ||
hosts deny=* #拒绝访问的主机,*表示所有主机。 | ||
list=false #设置客户端请求时是否列出该模块,false为隐藏。 | ||
auth users=wujingchao #设置连接时使用的用户,即密码文件里面定义的用户名。 | ||
secrets file=/etc/rsyncd.pass #指定密码文件位置 | ||
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</code></pre><p>1.启动rsync守护进程</p> | ||
<p>启动服务</p> | ||
<p>手动方式(–config用于指定rsyncd.conf的位置,如果在/etc下可以不写)</p> | ||
<pre><code>#/usr/bin/rsync --daemon --config=/etc/rsyncd.conf | ||
</code></pre><p>xinetd方式</p> | ||
<p>如果没有安装xinet,请先安装,</p> | ||
<pre><code>#yum install xinet | ||
</code></pre><p>在rsync默认安装完成后,安装程序会自动在建立/etc/xinetd.d/rsync文件,但是默认情况是disable = yes,需要修改disable=no 即可然后,我们通过xinet启动rsync:</p> | ||
<pre><code>#service xinetd start/restart | ||
</code></pre><p>好了这样主服务器就配置好了,启动之后可以看一下873是否处于监听状态</p> | ||
<pre><code>#netstat -tnlp | ||
</code></pre><p>如果该端口被防火墙作用:</p> | ||
<p>开启873端口</p> | ||
<pre><code>#iptables -I INPUT -p tcp --dport 873 -j ACCEPT | ||
</code></pre><h4 id="从服务器"><a href="#从服务器" class="headerlink" title="从服务器"></a>从服务器</h4><p>1.安装rsync</p> | ||
<p>2.配置权限认证文件里面写入与主服务器相同的密码,不需要再写username</p> | ||
<pre><code> #vim /etc/rsyncd.pass | ||
123456 | ||
</code></pre><p>3.创建备份的文件夹</p> | ||
<pre><code> #mkdir /backup | ||
</code></pre><p>4.执行同步命令</p> | ||
<pre><code> #/usr/bin/rsync -avzP --delete --progress --exclude-from=/etc/exclude.conf --password-file=/etc/rsyncd.pass [email protected]::your_model_name /backup | ||
</code></pre><pre><code>--exclude-from 表示要排除上传哪些文件或者那些后缀的文件execlude.conf示例文件如下 | ||
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admin/doAddProFromcsv/ | ||
site_data/ | ||
.dat | ||
.log | ||
.txt | ||
.xml | ||
add_admin.php | ||
</code></pre> | ||
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