Linux

Apache limits the size of log files. Even if a server is not busy, the log file contains a large amount of information. Generally, access logs are increased by 1 MB or more for every 10000 requests. In this case, it is necessary to regularly scroll

Postfix installation configuration (SMTP) 1, prepare the compressed package www.2cto.com postfix-2.8.8.tar.gz2, unzip # tar-zxvf postfix-2.8.8.tar.gz # cd postfix-2.8.8 # make install note: create a user and a group www.2cto.com # groupadd postfix #

Simple script writing 1. Exercise: write a script www.2cto.com to determine whether there are users in the current system. The default shell is bash. If so, the number of such users is displayed. Otherwise, no such user is displayed; grep "bash

Vim diff in linux (debian) Reports error E97 solution 1: an error was reported when vim was used to compare two files. I used debian stable. vim is vim7.2 www.2cto.com 2 from aptitude. So I tracked diff www.2cto.com [html] root @ host:

The Network Service of the ubuntu 12.04 system is not compatible with the network manager of this version. This morning, I had a mess in the lab and did not know what the problem was. As a result, after the restart, the Network Map icon was

[Personnel in O & M gateway_05] System Security Inspection tool-nmap [Personnel in O & M gateway_04] System Security Inspection tool-nmaphttp: // www.bkjia.com/ OS /201304/200048.html in the United States blockbusters, Cui NIDI uses nmap to intrude

Vim Advanced Skills-use vim to compare two files: 1: Use vim-d file1 file2 to directly open two files or: Use vim file1 to open the first file, use vert diffsplit file2 to open the second file for comparison. (vert indicates the Vertical Split

CentOS, sudoers solution prompt "xxx is not in the sudoers file when sudo is used. this incident will be reported. XXX is your user name, that is, your user name does not have permission to use sudo. You just need to modify the/etc/sudoers file. The

Linux (CentOS 6.3) sets up VNC Remote Desktop Connection. I just studied Linux and chose CentOS6.3. Since I started to study Linux, I had a lot of detours for this Remote Desktop Connection, which made everyone laugh. To get this VNC remote

Shell control structure (break and continue statements) the break statement can end the execution of while, for, until, select, and other structures, that is, jumping out of the structure. After exiting the loop, go to the done statement and

The first step for setting up an ftp server in ubuntu is to install related software packages. Apt-get install vsftpd Step 2: modify the configuration file/etc/vsftpd. conf. The configuration file is marked with #. Modify the following: uncomment

In the Unix/Linux-Terminal (Terminal) simulator, the software required to install the installation configuration 0 is the most page processing program, and the name is pretty cool. My installation environment is gentoo linux. The Code is as follows:

Commands for mounting the optical drive and iso to the aix system 1. Create a folder for loading the optical drive # mkdir/cdrom2. Mount the/dev/cdo optical drive device to/cdrom in the format of the cdrfs file system. under the folder # mount-rv

Awk usage description awk: The Chinese meaning is that the Report Generator can format and display the information based on the information we enter, and the defined information is more beautiful (intuitive) the new awk (nawk) is implemented on

Linux network problems regarding the solution to the connect network is unreachable problem some netizens found that the ping command encountered the problem of connect: network is unreachable. This is usually because the IP address is not set

Using a virtual optical drive to share WINDOWS files with UBUNTU in a virtual machine, this method can only be achieved (at least I have found this is the only way) to pass files to ubuntu in a virtual machine for reading and copying the ubuntu

Upload and download files to the local machine in Xshell (the folder in the dbserver that has been logged on through ssh for multiple times in linux) 1. List all sh files to be copied-bash-4.1 $ ll/mysqllog/osw /*. sh-rwxr-xr-x 1 mysql 409 May

Create functions in Linux Command Line and shell script ProgrammingBASIC script function creation function 1. use the function keyword, followed by the function name [plain] function name {commands} 2. the function name is followed by an empty

Common host monitoring Shell scriptsRecently, some people have asked me questions about server monitoring from time to time. I asked if common server monitoring software, such as cacti and nagios, can I write shell scripts by myself? The shell

In archlinux, the solution to Bluetooth File Transfer failure is in The gnome Environment of arch linux, where files on the mobile phone are transmitted to the computer by using Bluetooth, which always fails and is not reflected on the computer.