49个备份与恢复软件

Backup—Network 1. <a href="http://www.amanda.org/">AMANDA</a> AMANDA stands for "Advanced Maryland Automatic Network Disk Archiver," and it's a very popular enterprise backup system that supports disk, tape and optical media backups. A cloud-based service that utilizes the same technology is available through <a href="http://www.zmanda.com/">Zmanda</a>, which is owned by Carbonite. Operating System: Windows, Linux, OS X 2. <a href="http://backuppc.sourceforge.net/">BackupPC</a> This network backup system can archive large numbers of files to local or networked disk storage. It uses pooling and compression to make the archived files as small as possible, reducing storage hardware capacity requirements and costs. Operating System: Windows, Linux 3. <a href="http://www.bacula.org/">Bacula</a> The Bacula website boasts, "According to Source Forge statistics (rank and downloads), Bacula is by far the most popular open source program backup program." It offers enterprise-grade……

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21 of the Best Free Linux Backup Tools

Backup software is used to perform a complete back up of a file, data, database, system or server. It enables users to make a duplicate of everything contained on the original source. This type of software is also used to perform a recovery of the data or system in the event of a disaster. Making file backups is an essential activity for all users,yet many users do not take adequate steps to protect their data. Whether a computer is being used in a corporate environment, or for private use, the machine’s hard disk may fail without any warning signs. Alternatively, some data loss occurs as a result of human error.Without regular backups being made, data will inevitably be lost even if the services of a specialist recovery organisation are used. Whilst it……

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nginx rewrite实现对域名和IP的多条件正则

一、背景与需求 最近通过分析nginx日志,发现有很多站点会到公司站点上采集行情信息。想通过nginx rewrite处理所有的盗链。具体要求如下: 1、对于白名单中的域名允许其调用行情信息; 2、对于白名单中的IP允许其调用行情信息。 说白了上面就是一个逻辑或的语句,只要满足上面的任一条……

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解决linux停在starting automount无法启动

公司的一台centos 6.0 X64系统测试机,把root密码给了好几个组的人用。天晓得他们在上面折腾什么!过了几天我要测试mysql-cluster,刚好少一台机器。结果发现登录不上了,我原以为其他组的人改了密码。问了他们,他们也说登录不了。本想重启下或重置下密码就能解决了!结果按上……

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shell 生成随机数与随机字符串

一、生成随机数 1、使用系统的 $RANDOM 变量 1[root@361way ~]# echo $RANDOM 214436 2、增加整数实现范围 $RANDOM 的范围是 [0, 32767] ,如需要生成超过32767的随机数,可以用以下方法实现。 生成40000~50000的随机数 1#!/bin/bash 2function rand(){ 3 min=$1 4 max=$(($2-$min+1)) 5 num=$(($RANDOM+1000000000)) #增加一个10位的数再求余 6 echo $(($num%$max+$min)) 7} 8rnd=$(rand 40000 50000) 9echo $rnd 10exit 0 3、使用date +%s%N 1#!/bin/bash 2function rand(){ 3 min=$1 4 max=$(($2-$min+1)) 5 num=$(date +%s%N) 6 echo $(($num%$max+$min)) 7}……

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听风者——听手机号码

无意间在网上看到一则挺火的新闻。南京大学软件学院“标准哥”成功从一段电话拨号音频里成功分析出了360 董事长周鸿祎的个人手机号。该哥们听说已出到周鸿祎和李开复两位IT牛人抛来的“橄榄枝”。 咋一听,确实很牛。就像麦家《听风者》里的那哥们的神技被科技实现了一般。不过网上相关新闻栏里也看……

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MySQL监控工具——mytop

mysql可以说如今最为流行的数据库了,虽然现在nosql的风头正盛。但我想很多公司重要的业务数据不会用nosql去跑。而在这些方面mysql似乎的使用更盛(开源免费,让我花钱去买oracle,我想我是不会买的)。君不见taobao、腾讯、facebook这些牛X的IT公司们都自……

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批量修改MySQL存储引擎类型

最近在做mysql-cluster 7.2.7的架构测试,不过因为目前现网所用的mysql引擎类型是MyISAM,而集群所用的类型是NDBCluster。而手动一张表一张表的去ALTER去修改显然是不现实的。因为公司现网上在用的表有好几百个。从网上找了两种批量修改的方法,如下: 一、……

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给rm设置回收站

在LINUX上使用rm是删除文件的,但rm也是危险的,使用不当就会造成不可估量的影响,例如:rm -rf /*(虽然可以使用debugfs进行恢复,不过这个就要靠运气了)。在rm操作时,我们可以像windows上一样,给rm加上一个移到回收站的功能。 一、myrm脚本 因为exit会使得子s……

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