Linux

Use the character installation mode: Press ESC, enter Linux text, returnWhen installing the system through the character interface, the official block of custom partitions and custom installation packages is blocked for a bug .32-bit operating

Change the IP information of the NIC/etc/sysconfig/network-scripts/ifcfg-eth*Change the NIC hardware information (MAC, name, etc.)/etc/udev/rules.d/70-persistent-net.rulesifcfg-eth* File Contents:Device= Interface Name (device, NIC)Userctl=[yes|no] (

To add the NOEXEC option to the load point, the files in that mount point (note that it is not a directory) cannot be run directly even if the X permission is given. It is slightly safer to store only the data partition, although it cannot be run

There are several commonly used meta characters in regular expressions:*: Indicates that the character preceding the * symbol can contain 0 or any of the characters.?: Represents an arbitrary character, such as Alert_??. Log, which indicates a file

Common system logs under Linux are usually placed in the/var/log/directory, the following is a common system log in this directory: Log name Description Dmesg Core Boot Log Messages System

Sort text: Sort (does not affect the order of the source files only affect the display order)-N: Numeric sorting-R: DescendingUniq-C: Shows the number of rows in a file that repeats-D: Show only duplicate rowsText statistics: WC (word

Server-side configuration1. Install git2, create a new user, can only be used to upload code, but not through SSH login, such as git usersAddUser gitChsh-s $ (command-v git-shell) gitReplace bash with Git-shell so that git users can't log in via

1. View the default Python versionPython-v2. Download the source package, wget https://www.python.org/ftp/python/2.7.11/Python-2.7.11.tgz3. (if required) install GCC for compiling Python source codeYum Install GCC4. Compiling the installationTar

[Switch] backup and restoration of MySQL Databases in Linux, linuxmysql Back up the company's database yesterday. The following method is used:1. Export1. Export data and table structure:Mysqldump-u username-p Password Database Name> database name.

Ubuntu terminal command -- view port usage and disable Run the netstat command to view port usage in Ubuntu: View the connected service port (ESTABLISHED)Netstat-View All service ports (LISTEN, ESTABLISHED)Netstat-ap To view the specified port,

Robot Operating System (ROS) Tutorial Description: This article describes the usage and installation methods of ROS (Robot Operating System; 1.1 main use of ROS ROS is a computer Operating System architecture designed for Robot software development.

ROS compilation on ARM As a Mobile robot software architecture, ROS (robot operaring system) has been widely used in recent years. However, most applications are based on X86 architecture processors, how to combine such powerful tools with ARM

How to optimize CentOS (5.8/6.7) Linux production environment After the CentOS system is installed, it cannot be immediately used in the production environment. It usually needs to be optimized by our O & M personnel. Here are some basic

The simplest and most concise Systemd tutorial, which takes 10 minutes Linux 101: the most effective use of Systemd Why? Understand the significant changes in the release of modern Linux; Let's see how Systemd replaces SysVinit; Deal with unit

Linux memory management Most of the current servers run on Linux. Therefore, as a programmer, it is necessary to simply understand how the system runs. For the memory part, you need to know: Address ing Memory Management Method Page missing

In ubuntu15.10, sublime text3 cannot enter Chinese. Solution: ubuntu15.10sublimeLink to the original article: http://geek.csdn.net/news/detail/444641.first, ensure that your computer has a c+compiler Environment If not, run the following command to

Linux Samba server configuration and use Linux Samba server configuration and use Samba is a free software that implements the SMB protocol on Linux and UNIX systems. It consists of servers and client programs. Server Messages Block (SMB) is a

Example of configuring the JNDI link to the Oracle Data Source in Tomcat in Eclipse Recently, I switched to a new company and connected to the database using the JNDI method for the first time. At the beginning, I couldn't find out where the

General Linux interface server parameter tuning To support millions of concurrent online versions, you need to adjust the default Linux Kernel Parameters. Our typical configuration is to add the following content in/etc/sysctl. conf: Net. ipv4.tcp _

Use a plaintext ssh password to log on to a remote server on a Linux Desktop 1. The safest way to log on to a remote server in Linux is to use password-free logon. 2. PrinciplesImplemented through public key encryption and Private Key