Cloud Applications

An operating system has been installed on a server. after the cabinet is connected, you need to create a logical volume for system mounting. The entire disk is used as a partition, and the CentOS6.3 file system has a maximum of 16 T limit. First

This article describes network performance management techniques for Linux systems. it mainly describes how to use route, netstat, and tcpdump network management test tools and their functions. When configuring the network, you must specify the path

1. shut down your VM system and find the following content: Select EditVirtualmachesettings and click Expand to Expand the VM space to 40 GB (enter the space size as needed ). But it is not visible in linux. 2. use the fdisk tool in linux for

1. define the default policy iptables [-tnat]-P [INPUT, OUTPUT, FORWARD, PREROUTING, OUTPUT, POSTROUTING] [ACCEPT, DROP]-P: defines the default policy. ACCEPT, DROP: ACCEPT or discard. -t: specifies the defined type. the default value is the filter

As the saying goes, to do a good job, you must first sharpen the tool. today, I will share with you my vi script configuration. I use f8, and the configuration file is/etc/vimrc, or ~ /. Vimrc. What I am talking about is the configuration added on

1. Insert a row number in the text. a friend recently mentioned that an editor has a plug-in that can insert a row number and asked Vim if it is possible to insert a row number in the article. % $ ^ * #8 ~ #$ @#!...... Let's take a look at how many

To do this experiment, you need to add a new hard disk, and then you can use the hard disk to test how to install and use lvm. For details about how to add a hard disk to vmware, Refer to Appendix 1. prepare a physical hard disk and partition 1.

Run the vim command: vimfilename: to open or create a file, place the cursor on the first line of vim + nfilename: to open the file, and place the cursor on the first line of vim + filename: open the file, place the cursor in the first line of the

The Iptables table has two filter tables and nat tables. There are four links without output ???? INPUT (in the filter table) FORWORD (in the filter table) PREROUTING (in the nat table) POSTROUTING (in the nat table) iptables [-t table] operation

Introduction: centos generally has an iptables firewall. because the VPS of the centos system in hyper-v architecture adopts the IPTABLES setting method widely circulated on the Internet, port 22 of ssh cannot be modified, if you modify the ssh port,

To complete the final configuration of the NIS server, you must also configure the NFS server. NFS: The network file system is mainly a file sharing method between Linux hosts. by sharing the shared directory of the NFS server, the client only needs

1. for example, to change the source IP address of all packets from 192.168.1.0/24 to 1.2.3.4: iptables-tnat-APOSTROUTING-s192.168.1.0/24-oeth0-jSNAT -- to1.2.3.4 note that, the system does not perform SNAT until the data packet is sent. 1. Source

The company's development environment uses centos + virtualbox, but has made some basic optimizations to facilitate development. since it is an internal development environment, the first thing we can ensure is that development is convenient to

Etc/fstab is a text file in which each file system (including partitions or devices) is described in one row. in each row, fields are separated by spaces or tabs. lines starting with "*" in the file are comments. Sorting records in fstab files is

In vi/vim, you can use the: s command to replace the string. In the past, we used only one format to replace the full text. today we found that there are many ways to write this command (vi is really powerful, and there are still a lot to learn).

In LINUX, VFAT and NTFS partitions are automatically mounted upon startup. author: vcdog test environment: RHAS5Windows can be both FAT partitions or NTFS. by default, linux does not support NTFS. However, we can compile the NTFS module. For details,

No, when you get used to vim and bring fun to your programming, you will enjoy it more and more! In the past, when we started using vim, the mouse in vim didn't provide the same functionality as other editors, and we couldn't control the cursor

1. install dockerdocker on CentOS6.5. Currently, only Ubuntu is supported officially, so it is troublesome to install Docker on CentOS (Issue #172 ). Docker official documentation said that at least 3.8 of Linuxkernel is required, and CentOS6.4 is

You can log on to the vSwitch using Telnet, SSH, Web, or console ports to obtain normal or privileged access permissions. in enterprises with a large number of network devices and high requirements for network security, the account used only for the

I'll just talk about CentOS installation as a server, but for the general CentOS installation process, first download the CentOS installation image file, there are several: CentOS-6.5-x86_64-LiveCD, CentOS-6.5-x86_64-LiveDVD,