The nagios server ip address is suddenly replaced, causing all the machines to be mo

host_notification_options：d = notify on DOWN host states,u = notify on UNREACHABLE ho

 Debian 600+m installation is more difficult than ubuntu installation. Ubuntu is more

In this tutorial we will discuss most frequently asked linux system admin interview q

Network Bonding is the aggregation of multiple lan cards(eth0 & eth1) into a sing

 The server and the server perform scp. The password authentication requires a lot of

under Unix Copy a large text file, the contents of the file are prepared by yourself.

 1.find Because f i n d has powerful features, it has a lot of options, most of which

Chapter 1 LoginBefore logging in, users must first apply for a user registration name

 ~/.bash_login Please refer to “man bash”. If ~/.bash_profile does not ex

. modify.func //import each function modify .suf1 .suf2 //call functionput the curren

 Use the set command to set various shell options or list shell variables. Single opt

view setenvenvironment variable settings#for oracle database ORACLE_BASE=/rdsys/oracl

 1. CREATE DATABASE database_name [WITH LOG IN “pathname”] Create a datab

Libraries are dynamic and static. Dynamics usually use .so as a suffix and static as

Some times it is very important to know whether the Servers cpu Architecture is of 32

CentOS(Community Enterprise Operating System) is an open source Operating system. It

 The find command is very useful in linux, even more abundant than the search functio

I recently busy refactoring a history project, but due to objective conditions, no te

 A Redis server consumes tens of Gigabytes of memory in a short period of time and ev

view mysql default encoding format show variables like “character%”; If t

 Basic principle After the mysql installation is successful, the default is to not op

under centos Background Sometimes you need to use wine to run some programs designed

 Linus Torvalds (except for who he wont be) announced on the Linux mailing list (of c

The fault is basically the same: on a black windy night, the hard-pressed programmer

 //---------------------- sleep() functionFunction name: sleep Function: Execute susp

Sort command The function of the sort command is to sort the lines in the file. The s

 A.splint introduces splint as a tool for statically checking the security weaknesses

 Why do you choose this? Open source is now popular, from the back-end libraries, to

Memcache cache is a good software, here is the method of installing under Linux: The

with yum

1. Nothing to teach, teach you to look at the system version first (fatly remember th

 If the liunx system is started, I just said about it, but the specific process is no

in Linux integration Even without extensive Xen and KVM performance benchmarking, th

 The missing header file ‘security/pam_modules.h’ is part of the libpam d

1. How to install rpm package The installation of rmp package can be done using progr

 Download a rar for linux software online, its suffix is ​​tar.gz which means it is c

The FTP command is one of the most frequently used commands for Internet users. Wheth

  After linux rm deletes the file, recovery is more troublesome. Even if it is restor

Enabling the SSH service on the server makes the server exposed to the Internet, prov