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#WINDOWS和UNIX换行符的理解**file1.txt**17.143.161.37其他美国54.163.255.40其他美国弗吉尼亚州亚马逊公司**[root@localhosthome]#cat-vfile2.txt|head**>-v,--show-nonprintinguse^andM-notati... 阅读全文
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OverviewWe've talked about reverse proxy servers and how they can really be good at protecting the servers in your internal network. Lately, however, we've realized that some people actually think we'... 阅读全文
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Linux: Authentication token is no longer valid Problem: Authentication token is no longer valid; new one required You (zabbix) are not allowed to access to (crontab) because of pam configuration. ... 阅读全文
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Basic command of SNMP: GET: The GET operation is a request sent by the manager to the managed device. It is performed to retrieve one or more values f 阅读全文
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What is CRC and how does it works? CRC errors refer to Layer 1 or 2 issues.Two things you should check :1. Both the ends of the interfaces have some speed and duplex settings.2. Check the physical cab... 阅读全文
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There are three different chains : input , forward and output. Input: This chain is used to control the behavior for incoming connections. Forward: This chain is used for incoming connections that ar... 阅读全文
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HTTP性能测试 web性能测试的方法请参考此连接说明：http://www.xenoclast.org/doc/benchmark/ 1. httperf ftp://ftp.hpl.hp.com/pub/httperf/ 下载 解压然后安装，执行程序在安装目录下的src目录中 ./httperf –server 192.168.210.155 –port 10002 –uri /i... 阅读全文
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附件是部署Ansible的默认yum源，官方的源没有自带ansible使用上述源后可以直接yum install ansible完成安装http://ftp.linux.ncsu.edu/pub/epel/6/i386/epel-release-6-8.noarch.rpm在WLAN Portal的云平台上192.168.210.155主机只与DCN通，所以只能通过上传安装包的方式安装安装pycr... 阅读全文
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####1.SettingtheReplicationMasterConfigurationOnareplicationmaster,youmustenablebinaryloggingandestablishauniqueserverID.Ifthishasnotalreadybeendone,aserverrestartisrequ... 阅读全文
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Redhat下的Mysql源码安装 Installing MySQL on Linux Using the MySQL Yum Repository 如果选择使用yum安装5.6版本 Enable to use MySQL 5.6 [mysql56 community] name=MySQL 5.6 阅读全文