Linux

There are two ways to solve this problem: Method One: Modifying the BASHRC file disables the alias of CP [root@~]# VI ~/.BASHRC Add the "#" comment before alias cp= ' Cp-i ', and you can implement replication without prompting after you log in

XCache is an open source opcode cache/optimizer, which means that he can improve PHP performance on your server. By buffering data from the compiled PHP to shared memory to avoid duplication of compilation, he can increase speed by directly using

Today, my colleague asked me to install Ruby and rails on a test machine, and there was a compilation error in installing ruby-1.8.7. as follows: Ossl_pkey_ec.c:815:error: ' ec_group_new_curve_gf2m ' undeclared (in the This function)Ossl_pkey_ec.c:8

The following is my personal learning Linux/unix environment programming summed up the difference between soft links and hard links, for reference only Soft links can be cross file systems, hard links are not available. Hard links and source files

Centos LVM is a mechanism for managing disk partitions in a Linux environment, a logical layer that is built on top of hard disks and partitions, under the file system, and improves disk partition management flexibility. RHEL5 the default installed

Now many new PCs (especially the motherboard integrated network card machine) support the remote wake-up function (Wol,wake on Lan), through remote wake-up, you can facilitate the administrator to achieve automatic computer opening. Of course the

To hook up a Windows file share The core of Windows network sharing is smb/cifs, where you must install and use the Samba package to connect (mount) Windows disk sharing under Linux. Most popular Linux distributions now contain samba packages, and

Today, a co-worker has a problem with three 1T disks (SDB, SDC, SDD) added to several of the hosts he owns, but the new three partitions are added directly to a section using GPT partitioning. Because the previous MBR boot was used, and the LVM

Chmod often used. But the basics are limited to the use of chmod 755 A1. or 777.Today encountered a problem to think, let a folder can only see themselves, others can not see. I don't know, it's a few. Deliberately learn the meaning behind these

The servers are:Server a:192.168.1.6, synchronizing directory:/var/wwwServer b:192.168.1.7, synchronizing directory:/var/wwwInstall UnisonFirst install OCaml, version is at least 3.07 or higherDownload Address: http://caml.inria.fr The

Today's own virtual machine disk is completed, so I would like to add a disk, when mounted to find an error you must specify the filesystem type. (Note: My system environment is lcentos6.3 installed in VirtualBox virtual machine) It turns out that

System: CentOS 5.xRequired Packages: awstats-7.3.tar.gz 1. Modify Nginx Log format The code is as follows Copy Code Log_format Main ' $remote _addr-$remote _user [$time _local] ' $request '' $status $body _bytes_sent ' $

Glances is a Linux, BSD open Source command-line system monitoring tool, which uses the Python language development, uses the Psutil library to collect the system data, can monitor the CPU, the load, the memory, the disk I/O, the network traffic,

Access prompts the following error:Oops:cannot Change Directory:/home/ftpThe reason is that his CentOS system installed SELinux, because the default is not open FTP support, so access is blocked.View SELinux Settings The code is as

The DF command can show the available space and usage for all current file systems, and see the following example: The following is a code fragment: The code is as follows Copy Code [Yayug@yayu ~]$ Df-hFileSystem Size

This is a program developed by Red Hat following GPL rules. It has an interactive operation interface that allows you to easily set the time zone of the system time by using the arrow keys and space keys.SyntaxTimeconfig [-- arc] [-- back] [-- test]

Statserial (status ofserial port) can display the status of each pin, often used to determine whether the serial port is normal.SyntaxStatserial [-dnx] [serial device name]Parameter description: -D indicates the serial port status in decimal

If you run this command, you can find out who are currently logged on to the system using FTP and what operations they are performing.SyntaxFtpwhoParameter description: -V: Display version informationInstanceTo query which users are currently

The tr command reads data from the standard input device. After string translation, the result is output to the standard output device.SyntaxTr [-cdst] [-- help] [-- version] [first character set] [second character set]Tr [OPTION]… SET1