About Linux Swapping Linux RAM is composed of chunks of memory called pages. To free up pages of RAM, a “linux swap” can occur and a page of memory is copied from the RAM to preconfigured space on the hard disk. Linux swaps allow a system to harness…

How To Add Swap on Ubuntu 12.04 Aug 17, 2012  Linux Basics Ubuntu   About Linux Swapping Linux RAM is composed of chunks of memory called pages. To free up pages of RAM, a “linux swap” can occur and a page of memory is copied from the RAM to preconfi…

UNIX / Linux: 2 Ways to Add Swap Space Using dd, mkswap and swapon by RAMESH NATARAJAN on AUGUST 18, 2010   Question: I would like to add more swap space to my Linux system. Can you explain with clear examples on how to increase the swap space? Answe…

https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-ubuntu-14-04 How To Add Swap on Ubuntu 14.04 PostedApril 28, 2014 597.9kviews GETTING STARTED LINUX BASICS SERVER OPTIMIZATION UBUNTU   Introduction One of the easiest way of increas…

Introduction One of the easiest way of increasing the responsiveness of your server and guarding against out-of-memory errors in applications is to add some swap space. In this guide, we will cover how to add a swap file to an Ubuntu 16.04 server. Wa…

简介 Nagios 是一款自动化运维工具,可以协助运维人员监控服务器的运行状况,并且拥有报警功能.本文章将介绍其安装方法和详细的配置方法. nagios 监控服务应用指南 本地资源:负载,CPU,磁盘,内存.IO,RAID,温度,passwd文件变化,本地所有文件指纹识别 网络服务:端口,URL,丢包,进程,网络流量 其他设备:交换机,打印机,windows等. 业务数据:用户登录失败次数,用户登录网站次数,输入验证码失败的次数,某个API接口流量并发,电商网站订单,支付交易的数量 nagios…

Adding Swap Files If you do not have free disk space to create a swap partition and you do need to add swap space urgently, you can use a swap file as well. From a performance perspective, it does not even make that much difference if a swap file is…

(来自:http://www.cnblogs.com/vicowong/archive/2011/12/01/2116212.html) 环境: 系统硬件:vmware vsphere (CPU:2*4核,内存2G) 系统版本:CentOS-6.5-x86_64-minimal.iso 安装步骤: 0.虚拟系统安装 0.1 使用VMware 虚拟机进行安装,进行安装界面 (分配内存必须大于1G,否则不会显示图型安装界面,网络设置使用“桥接模式” 即"Bridged"模式) 0.2 选择…

问:我是一个Ubuntu 14.04 LTS版本的新手.我需要一块额外的swap文件来提高我Ubuntu服务器的性能.我怎样才能通过SSH连接用相关命令为我的Ubuntu 14.04 LTS 增加一块swap分区. Swap文件除了作为一块磁盘存储以提高Ubuntu系统的内纯使用效率意外,什么都不是,在本教程,你将会学到如何在Ubuntu系统上去创建以及使用Swap文件. 在Ubuntu服务器版或者桌面版,什么是Swap文件? 作为系统管理员是很有必要在系统安装完成后为其添加额外的swap文件,…

PXE(Pre-boot Execution Environment)是由Intel设计的协议,它可以使计算机通过网络而不是从本地硬盘.光驱等设备启动. 现代的网卡,一般都内嵌支持PXE的ROM芯片.当计算机引导时,BIOS把PXE client调入内存执行,并显示出命令菜单, 经用户选择后,PXE client将放置在远端的操作系统通过网络下载到本地运行. >>>>>>这里笔者将PXE网络安装Centos 7的方法记录如下,首先服务端(Centos 7)的需要准备的环…