Linux

Virtual Private Network (VPN) Virtual private networks are connected to a geographically different local network by means of the public network Internet, which is like local access. Because VPNs encrypt data as they transmit data, the security is

VPN Client Connection Linux server access slows down how to solve There are three ways to solve the problem: Method One: Edit pptpd source code, increase MTU; Method Two: Use a script to increase the MTU after the PPTP interface is connected to

ImageMagick Installation wget http://www.imagemagick.org/download/ImageMagick.tar.gzTar zxvf ImageMagick.tar.gzCD imagemagick-6.8.9-7./configure--prefix=/usr/local/imagemagick/--enable-lzw--with-modules--with-quantum-depth=8?--enable-shared-

The alias command is used to set the name of the directive. We can use this command to simplify some of the longer commands. When using alias, the user must use single quotes ' to cause the original command to prevent special characters from causing

Example One 1, create public key, public key SSH-KEYGEN-T RSA Copy the public key to the remote host Ignore it out of any hint, merry all the way back to the end of it. 2. Copy the public key id_rsa.pub to the/HOME/USERNAME/.SSH directory of

Because of the well-known stability and reliability of Unix operating systems, the computers used to provide a wide range of Internet services run a large percentage of Unix and Unix-like operating systems, requiring a large number of skilled

Problems caused by the host $ export dvsdk= "${home}/ti-dvsdk_dm368-evm_xx_xx_xx_xx" 1, ${home}: First, home is a variable, it represents your home directory, the variable must precede the $ symbol, otherwise it will be an error USR/LOCAL/DVSDK

Log in as root, execute: Copy Code code as follows: # passwd username (change password) # Useradd User name (add user) The specific examples are as follows: Copy Code code as follows: [Root@bogon ~]# passwd

Linux curl is a file transfer tool that uses URL rules to work at the command line. It supports the uploading and downloading of files, so it is a comprehensive transmission tool, but traditionally, the URL is used as the download tool. One, Curl

Varnish is a high-performance open source HTTP accelerator, Norway's largest online newspaper Verdens Gang use 3 units varnish replaced the original 12 squid, better performance than before. But compared with the old squid, each has its own

Before setting up, let's take a look at the characteristics of the proxy server. This is how we understand the proxy server: Assuming that computer A requires computer B data, computer A first with computer C to establish a connection, computer C

Lftp is a powerful download tool that supports protocol access to files: FTP, SFTP,FTPS, HTTP, https, hftp, fish. (where FTPs and HTTPS need to include the OpenSSL library at compile time). Llftp interface very want a shell: has the command

In front, we introduce a way of communication between processes: Using a signal, we create a notification event and generate a response through it, but the information passed is only a signal value. Here is an introduction to another way of

This is an exciting Linux distribution, one of the most popular Linux desktops at the moment. Slim figure of the 1CD body, numerous software support, can meet the day-to-day office and entertainment requirements (except for games under Windows).

First, IntroductionSystemtap is an open source software that troubleshoots performance or functionality issues with Linux systems. It makes it easier and easier to diagnose the Linux system at runtime. With it, developers or debuggers no longer need

The previous post introduces the principle of kprobes and the use and implementation of Kprobe, this paper introduces the second detection technology in Kprobes Jprobe, which is based on kprobe implementation, can not be inserted at any point in the

1. OverviewIn the Linux system, everything can be considered as a file, and the file can be divided into: Ordinary files, directory files, linked files and device files. File descriptor is the index created by the kernel in order to efficiently

At present, I use the system LinuxMint, before the hard drive is not bad when the Foxit reader and okular to view the PDF file, but later found that Foxit reader to eat CPU, and now after the solid-state drive only 120G free space, So only the

Common linux commands and common linux commands Common commands Ls display file or directory -L list file DETAILS l (list) -A: List all files and directories in the current directory, including hidden a (all) Mkdir create directory -P: Creates a

Sysctl. conf for learning and tuning, and sysctl. conf for tuning Reproduced in the short book: sysctl. conf learning and tuning. If you have any version problems, please contact mePreface Remember the first