Linux

VIM uses the series: basic and common command list to enter the vim command vim filename: open or create a file, and place the cursor in the first line of vim + n filename: open the file, place the cursor at the beginning of line n vim + filename:

LVS three working modes test script 0011. NAT: 002 #! /Bin/bash003VIP = 192.168.0.111004RIP1 = 10.0.0.10005RIP2 = 10.0.0.20006case "$1" in007start) 008 echo "start LVS of DirectorServer NAT" 009 echo "1">/proc/sys/net/ipv4/ip_forward010/sbin/ipvsadm-

By default, ubuntu firewall provides a very good firewall tool (UFW), which is a host.Iptables Firewall Configuration tool. The purpose of this tool is to provide users with an interface that can be easily controlled, just like package integration

Nginx: error while loading shared libraries: libpcre. so.1 solve the Shell code [ew69 @ localhost conf] #/usr/local/nginx/sbin/nginx: error while loading shared libraries: libpcre. so.1: cannot open shared object file: No such file or directory

In linux, some simple system monitoring script companies do not have a dedicated system administrator. Therefore, some server security measures have to be done by our programmers themselves. We do not know much about Linux servers and have checked

X64 Linux cannot log on to the local character interface to solve common exceptions. In other words, I have a server in charge of squid. It's always up to her to log on remotely. Today, I want to change a gateway, so I took a monitor and operated it

Build a Linux System Based on busyboxWe sometimes need to create linux on the basis of busybox, but we do not know how to do it. Here we will give a detailed description of how to create a linux small System Based on busybox. Prepare the environment:

/Usr/bin/ld: cannot find-lxxx problem summary the following errors often occur when compiling applications in linux:/usr/bin/ld: cannot find-lxxx indicates that the corresponding library file cannot be found during the compilation process. -Lxxx

Use the fdisk command in combination with the partprobe command without restarting the system to add a new disk partition host with a hard disk exceeding 300 GB. Currently, only three primary partitions are used, less than 70 GB, as shown below:

Linux dpkg command details common dpkg usage dpkg-I install a Debian package file, such as the file you manually download. The content listed in dpkg-c. Dpkg-I extracts package information from the package. Dpkg-r removes an installed package.

The latest SSH Automatic Login solution (RSA) I. Preface when you directly connect to the server using ssh, You need to manually enter the password. If you do not need to manually enter the password and automatically log on to the SSH server, that

Linux shortcut to start tomcat 1. script path/etc/init. d/tomcat: Run vi/etc/init. d/tomcat press a to edit the following content according to your own situation (mainly Modify/usr/local/tomcat6/bin/), copy it to the edit box, and exit the editing

A brief summary of Several configuration files called when logging on to start shell recently took over a server. After logging on to the server as root, I felt that the bash shell environment I set was particularly uncomfortable. I just wanted to

/Etc/sysctl. conf kernel. shmmax defines the maximum value of a single shared memory segment. The shmmax setting should be large enough to be within a shared memory segmentIf you set the SGA to a lower value, you may need to create multiple shared

In Centos, the new system for configuring iptables firewall server is Centos6. iptables is installed by default. Basic operation of iptables: service iptables startservice iptables stopservice iptables restartservice iptables status # if it is not

Search for large files occupying hard disks in GNU/Linux (1) Search for files larger than 50 MB from the root directory, and display the first 10 files in the size list: [plain] [root @ Rocky ~] # Find/-printf "% k % p \ n" | sort-g-k 1,1 | \ awk

OS environment variables. bash_profile and bashrc bash shell environment variables are objects with specific names. They contain information that one or more applications will use. For example, if the system is required to run a program without

Linux Kernel features Linux is a Unix operating system on PCs and workstations. However, it is by no means a simplified Unix. On the contrary, Linux is a powerful and innovative Unix operating system. It not only inherits the characteristics of Unix,

[O & M engineer _ 07] Resource Monitoring artifacts for GNU/Linux systems-collectl [key recommendations][O & M engineer _ 06] uses sniffer to diagnose Linux network faultsHttp://www.bkjia.com/ OS /201304/200754.htmlMonitoring System resources is an

Linux instructions: user Information and Management-who Name authentication: who permission authorization: All users can use: who-[husfV] [user] Description: in the presentation system, the user is on the top, and the displayed information includes