Linux

Kernel: 2.6.34 TCP is the most widely used transport layer protocol, which provides the connection-oriented and reliable byte-throttling service, but it is precisely because of these characteristics that TCP is more complex than UDP, and it is

Kernel version: 2.6.34 This section is about how the socket was created and accessed by the kernel protocol stack, focusing only on two issues: sock when the kernel table was inserted, and how sock was accessed by the kernel. For the core of the

The CAL command can be used to display Gregorian calendar calendars. The Gregorian calendar is now the International Universal Calendar, also known as Griel, the Gregorian calendar. "Gregorian Calendar" also known as "Taiyangli", the Department of

The Linux du command also looks at the usage space, but unlike the DF command, the Linux du command is a view of the space used by files and directory disks, or some difference from the DF command. 1. Command format: du [Options] [file] 2.

1. Overview IPV4 uses the gethostbyname () function to complete host name to address resolution, which only supports IPV4 and does not allow callers to specify any information about the desired address type, and the returned structure contains only

Just installed Linux system does not have two days, in the boot system to facking filesystem [Faild] (Error) The system then enters: [Repair filesystem] As a result, I lost a few orders and then appeared: [Repair filesystem] 2# Until [Repair

Sfdisk is a partition table operation tool below Linux that displays the settings for a partition and checks to see if the partition is normal. Sfdisk can also be used to create partitions. Usage: Sfdisk [options] device ... Option Description:

We can often use time in programming, such as getting the system time (to get the system's year, month, day, time, minute, second, week, etc.), or to do something over time, so we use some time functions. Linux storage time is common in two types

Some places are the network address and the interface card Physical address binding, when changing the network card or other computer may not be on the network, the following describes the change of physical address (MAC addresses) method. Divided

Summary: One of the most common and difficult decisions that Linux users encounter when installing a Linux operating system is how to properly assess the size of each partition to allocate appropriate hard disk space. When a partition space is

This article introduces the management of Linux system network performance skills, mainly introduces the route, Netstat, tcpdump Three network management test tools and the implementation of the function. Route When configuring a network, specify

Under the Linux construction site, garbled problem bothered me for almost one weeks, and then finally resolved. My experience is that the application must conform to the character set (encoding) of the database. Specifically, that is, if you want

The so-called process is an instance of the execution of a program. It is an important abstraction in the modern operating system, and we analyze the process management implementation on Linux from the lifecycle of the process: creation, execution,

1. Overview Although Linux can run on any PC with more than 386 PCs, most people now use a new desktop PC or laptop with a variety of peripherals, and the power management function (PM) is becoming increasingly important. Power management on

To make a small Linux, we need to understand the Linux system boot the whole process, in fact, very simple, and win almost. Post (BIOS power on self test)--> boot the corresponding device according to the BIOS setting-->boot loader--> unpack the

RAID Overview RAID is the abbreviation for a low-cost Redundant array of disks (Redundantarray of inexpensive disk), which allows multiple disks to be integrated into an array, and can be used as a single disk when applied. Depending on the

Installing software with rpm To facilitate Linux users to add and remove software, Red Hat Company Package Manager rpm, because it makes it easier to install and uninstall applications in Linux, by default (that is, no file dependencies) users just

Ethernet Connection In Linux, the Ethernet interface is named: eth0,eth1, 0, 1 for network card number The LSPCI command allows you to view the hardware information for your network card (if you are a USB card, you may need to use the LSUSB

Modify IP address and gateway is a very common operation, in doing related experiments, if not set well, will bring a lot of unnecessary trouble. 1. Modify IP Address Vi/etc/sysconfig/network-scripts/ifcfg-eth0 Device=eth0 Bootproto=none

First, Crontab Introduction The function of the crontab command is to schedule the execution of some commands at certain intervals. 1.1/etc/crontab file In the/etc directory there is a crontab file, where there are some scheduling programs