Linux

1) Role The/etc/services file records the network service names and their corresponding port numbers and protocols. 2) Format  Each row in the file corresponds to a service. It consists of four fields separated by tabs or spaces, service name, port

Man -- format and display the on-line manual pages Common Methods: Man [section] name Where: Section refers to the part of the manual page, which can be 1, 2, 3... 8. If this parameter is not specified, man searches for the first parameter in

Install Erlang R16B In Ubuntu. Install related Class Libraries # Install libraries and toolsSudo apt-get install libncurses5-dev m4 fop freeglut3-dev libwxgtk2.8-dev g + + libssl-dev unzip tproc build-essential tk8.5 unixodbc-dev

1) download the compiled firmware From OpenWrt's official site https://openwrt.org/ Http://downloads.openwrt.org/snapshots/trunk/ar71xx/openwrt-ar71xx-generic-tl-wr2543-v1-squashfs-factory.bin Firmware is divided into squashfs and jiffs2 file

Solution for changing mounting storage to read-only in Linux 1. mount:Used to view which module is read-only and is generally displayed as follows:[Root @ localhost ~] # Mount/Dev/cciss/c0d0p2 on/type ext3 (rw)Proc on/proc type proc (rw)Sysfs on/sys

When using remote desktop, it is based on cost considerations. In Open products, vnc is usually used, and the platform compatibility is good, except for the speed. In Linux, XMing + ssh x protocol is also used for forwarding. There is no problem

Applications developed using ScriptCase are completely open-source PHP code, which has nothing to do with ScriptCase. To facilitate deployment, SC provides a deployment configuration interface. 1. install Apache, PHP, and MySQL in Ubuntu: For more

Here, we mainly solve the problem of communication between Linux and the host on the vmwarevm, and introduce the use of the putty tool. When using Linux, we chose vmware + Linux + putty because we were not used to various Linux operations. Putty is

Configure SSH password-free logon in Linux: Assume that the username is sinbad. 1) confirm that you have connected to the Internet. At this time, we need to download the ssh installation package. All you need to do is press Y. 2) to log on to

Node. js is a set of JavaScript toolkit used to write high-performance network servers. A series of changes started from this. Specifically, Node. js assumes that Linux or Mac OS X is running in the POSIX environment. In Windows, MinGW must be

I am going to learn about Hadoop recently, so I installed the Ubuntu operating system on the virtual machine, Although JDK has been configured, you can call java-version to see that jdk has been successfully configured. You can call the java

Autossh is a program used to start and monitor ssh. You can restart ssh when necessary, for example, if the program crashes or the network encounters a problem. It is inspired by rstunnel (Reliable SSH Tunnel ). the autossh 1.2 method has changed:

1. wget Wget is a free tool for automatically downloading files from the network. It supports downloading through HTTP, HTTPS, and FTP, and can use HTTP proxy. Command Format: wget [options] [URL]2. scp (mutual copy between servers) The scp command

The company's computer is a Linux system. These days, the software was installed with blood, and various versions and paths were messy. Summarize the Ruby installation method and save some files. 1. In Windows, you just need to remember to change

Force disable virtualbox after Windows 7 is installed in virtualbox. The following error occurs when you restart the instance again:Failed to open a session for the virtual machine Win7.Failed to get a console object from the direct session (Unknown

The original version is 2.4. The python module is reported when scons is installed. So in SUSE Linux, upgrade to 2.6. If you want to use the rpm-e command to delete python, You cannot delete it because of software dependency. So use the source code

Introduction: In the past, there was a saying on the Internet that when you put your finger on the keyboard, HJKL is closer than the arrow key, and the natural input efficiency is higher. It sounds quite reasonable. In fact, it is not. Let's take a

Tmux is a C-language terminal that can simultaneously access and control multiple terminals in a Single Window. It is a tool similar to GNU Screen. With this function, you can manage multiple tasks and command line programs on Linux without opening

1. installation and configuration of minicom Minicom is a serial communication tool in linux, which is very convenient to use, similar to a Super Terminal in windows. Enter the terminal in Ubuntu, enter sudo apt-get install minicom, or search for

Find path-option [-print] [-exec-OK command] {}\; the parameter of the find command: pathname: directory path searched by the find command. For example, use "." To represent the current directory, and use "/" to represent the root directory of the