Linux

ObjectiveAny system will have problems, the problem is generally how to troubleshoot the bug? This time the log of the Exception Log and key node logs is very important, in the face of a lot of log files, how to find the useful information we need?

For those who have just come into contact with Linux, it will definitely give Linux a bunch of different filenames to stun. Don't say, just for example, we know that the most common compressed files under Windows are only two, one is zip, the other

Network Configuration Common commands Introduction:The function of the network kernel in Linux1. Execute command generated address:(effective immediately after execution, service restart after the

1: Create file: Touch file nameThe touch command can also change the access time and modification time of an existing file without changing the contents of the file.Change modification time only touch-m file nameChange access time only touch-a file

Recently in the forum to see someone asked how Linux set only allow domain name access to the site and prohibit IP access to the site, before they have used this function, you can prevent others to use IP address to visit their own site, below I

[Note that during the installation process, some commands are not found, just yum isntall a bit.]Here's my success at CentOS release 6.4.Installation of RABBITMQ:RABBITMQ is based on Erlang, so you must first configure the Erlang environment.Unzip

OverviewIn some common devices ssh, SCP, do not enter the password can save a lot of time.Generate keySee if there is a local key, if there is, do not generate, otherwise it will affect the previous device.Copy the code code as follows :(brother

Introduction of environment variable fileTransferred from: http://blog.csdn.net/cscmaker/article/details/7261921Environment variables in Linux include system-level and user-level, system-level environment variables are system variables to be read by

By the November, half of the semester, and the "Information Security system Design Fundamentals" This course also to the midterm. So, I'm here, on the first half semester of the most basic knowledge, do a reviewReview plan is divided into two steps,

Test method: Expression: expressed, expressed[Expression][[Expression]]Test expressionThere are three common conditions tested in bash:1. Integer test:-eq equals-lt less than-ne Not equal to-GT Greater than-le less than or equal to-ge greater than

Restrict IP Login:(1): Directory/etc/under Hosts.allow to allow login IP configuration file(2): Directory/etc/under Hosts.deny to restrict IP profilesAdd IP or network segments in/etc/hosts.allow that allow SSH loginSshd:192.168.0.10:allow orSshd:192

VI is the standard editor for UNIX and Linux systems. Once you learn it, you will be in the world of Linux. Basically VI can be divided into three states, namely the command mode, insert mode, and the bottom line mode.The VI Editor is the standard

Command Page It's in the /dev/pts .Add IPIP addr Add 172.25.254.xxx dev eth0Increase GatewayRoute add default GW 172.25.254.251View GatewayRoute-nPhysical and virtual machines do not implement communication steps in the same network segmentBrctl

In Unix-like systems, you can use top to view information such as system resources, processes, memory consumption, and so on. View network status You can use Netstat, nmap and other tools. To see real-time network traffic, monitor TCP/IP

Linux command Useradd,userdel,passwd,groupadd,groupdel,su,usermodLinux Cloud Genesis Tags: Linux useradd userdel passwd groupadd Groupdel usermod Released: September 16, 2016Useradd commandCommand functionThe Useradd command is used for new system

Mkbundle (1)-Linux man PageNameMkbundle, mkbundle2-creates a bundled executable.SynopsisMkbundle [Options] assembly1 [assembly2 ...]DescriptionMkbundle generates an executable program that would contain static copies of the assemblies listed on the

Linux system startup process (3) One of the system fault repairin the use of Linux may cause a variety of reasons for the machine can not start, so there should be a response to these problems should be a measure to restore the system to let this

Centos compression and packaging, Centos compression and packaging This is basic knowledge, but some things are like this. If it is useless for a long time, it will be forgotten. In the past, there was a bad habit of not taking notes, after learning

Git terminology Chinese and English table, git Chinese and English table English Chinese English Chinese English Chinese Repository Repository and version Library Merge Branch merge Snapshot Snapshots

Record the log of creating LVM at one time and create LVM log records First, let's take a picture of laruence LVM. I feel this is the clearest picture.   # The following is a direct record using the Xshell logging system. Some Comments [BEGIN] 9:22: