How To Install RabbitMQ in CentOS 7In this tutorial we will show you how to install and configuration of RabbitMQ on your CentOS 7 server. For those of you who didn’t know, RabbitMQ is open source message broker software (sometimes called message-oriented middleware) that implements the Advanced Message Queuing Protocol (AMQP). The RabbitMQ server is written in the Erlang programming language and is built on the Open Telecom Platform framework for clustering and failover. Client libraries to interface with the broker are available for all major programming languages.This article assumes you have at least basic knowledge of linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation RabbitMQ on a CentOS 7 server.Install RabbitMQ in CentOS 7...

How To Install Glances System Monitoring on CentOS 7In this tutorial we will show you how to install and configuration of Glances System Monitoring on your CentOS 7 server.  For those of you who didn’t know, Glances is a free software (licensed under LGPL) to monitor your GNU/Linux or BSD operating system from a text interface. Using it you can monitor CPU, Load Average, Memory, Network Interfaces, Disk I/O, File System spaces utilization, mounted devices, total number of active processes and top processes. There are many interesting options available in Glances. One of the main features is that you can set thresholds (careful, warning and critical) in a configuration file, and information will be shown in colors which indicates the bottleneck in the system. Glances uses the library libstatgrab to retrieve information from your system and it is developed in Python.This article assumes you have at least basic knowledge of linux, know how to use the shell, and most importantly, yo...

How To Install Zabbix on CentOS 7In this tutorial we will show you how to install and configuration of Zabbix on your CentOS 7 server. For those of you who didn’t know, Zabbix is an open source monitoring tool that is ideal for monitoring your cloud servers. Zabbix is very flexible, information can be retrieved using HTTP/SNMP or by installing a Zabbix agent on the machines to monitor, and allows a lot of customization.This article assumes you have at least basic knowledge of linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Zabbix on a CentOS 7 server.Install Zabbix on CentOS 7Step 1. First of all make sure that all packages are up to date.yum -y update1yum -y updateStep 2. Install LAMP server.A CentOS 7 LAMP server is required....

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openssl又被爆出新漏洞（CVE-2016-2107）(升级脚本)OpenSSl 密码库的维护人员发布了一个高危安全漏洞的补丁（CVE-2016-2107），这个漏洞可以让攻击者在web服务器上解密登录证书或者执行恶意代码。当连接使用AES CBC加密并且服务器支持AES-NI的情况下，中间人攻击者可以使用padding oracle攻击来解密流量。填充检测被重写来确保读取的字节总是相同的，并且对MAC和填充字节进行比较。但它不再检查是否有足够的数据来包含MAC和填充字节。影响：高危修复方案：OpenSSL 1.0.2 用户请更新到1.0.2h版本OpenSSL 1.0.1 用户请更新到1.0.1t版本https://www.openssl.org/news/vulnerabilities.html#y2016----------------------------分割线登录SSH上操作wget http://down.wdlinux.cn/in/openssl201605.shsh openssl201605.sh如果能顺利执行完成，不出什么错，就升级完了

Lepus（天兔） 是数据库企业监控系统，针对互联网企业开发的一款专业、强大的企业数据库监控管理系统，企业通过Lepus可以对数据库的实时健康和各种性能指标进行全方位的监控。目前已经支持MySQL、Oracle、MongoDB、Redis数据库的全面监控. Lepus可以在数据库出现故障或者潜在性能问题时,根据用户设置及时将数据库的异常进行报警通知到数据库管理员进行处理和优化,帮助企业解决数据库性能监控问题，及时发现性能和瓶颈,避免由数据库潜在问题造成的直接经济损失。Lepus能够查看各种实时性能状态指标，并且对监控、性能数据进行统计分析，从运维者到决策者多个层面的视角，查看相关报表。帮助决策者对未来数据库容量进行更好的规划，从而降低了硬件成本。Lepus 是一个真正的能够帮助企业解决数据库监控和运维的问题，主要可以帮企业解决如下问题：1.帮助企业解决数据库性能监控问题，及时发现性能和瓶颈,避免由数据库潜在问题造成的直接经济损失 "Lepus数据库企业监控系统"是针对互联网企业开发的一款专业、强大的企业数据库监控管理系统，企业通过Lepus可以对数据库的实时健康和各种性能指标进行全方位的监控。目前已经支持MySQL、Oracle、MongoDB、Redis数...

MySQL配置读写分离在这里你再也不用担心高手省略了大段代码了，因为我也是新手。下面开整先安装luaLua 是一个小巧的脚本语言。Lua由标准C编写而成，代码简洁优美，几乎在所有操作系统和平台上都可以编译，运行。一个完整的Lua解释器不过200k，在目前所有脚本引擎中，Lua的速度是最快的。这一切都决定了Lua是作为嵌入式脚本的最佳选择。先安装可能的依赖包[plain] view plain copy print?[root@bogon ~]# yum -y install gcc* gcc-c++* autoconf* automake* zlib* libxml* ncurses-devel* libmcrypt* libtool* flex* pkgconfig*  libevent* glib* readline-devel      [root@bogon ~]# mkdir /opt/install/    [root@bogon ~]# cd /opt/install/    [root@bogon install]# wget http://www.lua.org/ftp/lua-5.1.4.tar.gz    [root@bogon install]# tar zxvf lua-5.2.3.tar.gz    [root@...

How to install Ioncube Loader PHP on Linux Ubuntu Ioncube Loader Extenion allows to run encoded PHP scripts by Ioncube Encoder.Ioncube Loader Extension – extension which starts witch PHP process that can read and run encoded files. The extension is free.Ioncube Encoder – software that allows encode and obfulscate PHP scripts using license key to description.This tutorial shows how to install Ioncube Loader Extension.1. Download Ioncube loader extension.Go to the http://www.ioncube.com/loaders.php url and locate your proper platofrm version.If you are not sure what platform (x86 or 64-bit, TS or NTS ) you need, just run phpinfo() and read from “System” and “PHP Extension Build”. For example this entry looks like:System: Linux athlan-VirtualBox 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64PHP Extension Build: API20121212,NTSI am using 64-bit platform, NTS (non-thread safe).So copy proper link and call:wget http://downloads3.ioncube.co...

Touchscreen This page is a documentation of my dealings with various touchscreen devices I've encountered. In my experience, most modern devices work out of the box with both 10.04 LTS or 12.04 LTS, but lack the proper calibration or configuration. Some older devices, especially those embedded in laptops such as GD Itronix line of rugged computers, use serial interfaces which lack the configuration to work in Linux. The methods documented here should work with other distros as well. Global Dynamics Itronix GoBook XR-1This is a rugged laptop I picked up from ebay for a good price, which the seller wiped with Ubuntu 10.04 due to the expense of Microsoft's Windows relicensing fee. The device has an integrated serial touchscreen, and the manufacturer is notorious for hiding any and all documentation on legacy devices such as this one. With a little trial and error however, it's relatively simple to configure this and similar devices. This method should work for most G...

 RedHat7.1系统配置pptp client客户端拨号VPN由于 RedHat7.1系统非常古老，所以连系统盘基本上都找不到了。好在找到了pptp client的安装源码包。wget http://downloads.sourceforge.net/project/pptpclient/pptp/pptp-1.8.0/pptp-1.8.0.tar.gz?r=https%3A%2F%2Fsourceforge.net%2Fprojects%2Fpptpclient%2Ffiles%2Fpptp%2Fpptp-1.8.0%2F&ts=1462894082&use_mirror=tenet从这里下载好软件安装包，查看安装包的install安装说明Installation Instructions - Brief    1.  install pppd (with MPPE if you require it),    2.  if pppd is not in /usr/sbin, edit Makefile, variable PPPD,    3.  'make'    4.  'make install'Installation Instructions - Detailed    1.  install PPP, and make sure it is working.        On most distributions, use the package called ppp or pppd.        If your PPTP server requires MPPE, make sure the pppd program  ...