Linux

This article was originally in the TCP article, but the article is too long, not exclusive. It was perfected and extracted.TCP Congestion ControlCongestion control is a discussion of how many simultaneous TCP connections should plan their own packet

The boxes command is not only a text filter, but also a very interesting tool that few people know, and it can be used in various ASCII art drawings in the text or around the code. You can use it to quickly create message signatures, or leave

The ZFS file system under the Linux platform is categorized in two, one is ZFS implemented in user space, and one is ZFS implemented through kernel modules.User-space-enabled ZFS has not been maintained for several years, and without stability,

1. Get the various usages of today's date:[Email protected] ~]# date +%y_%m_%d2016_05_22[[Email protected] ~]# Date ' +%y_%m_%d '2016_05_22[[Email protected] ~]# date "+%y_%m_%d"2016_05_22[[Email protected] ~]# date + '%y_%m_%d '2016_05_22[[Email

With this tutorial, make sure you can use Linux native. If you are using SSH remote, and can not directly operate the machine, then we recommend you cautious, cautious, and then cautious!With Iptables We can configure a dynamic firewall for our

First, SSH brute force hackThe use of professional crack program, with the password dictionary, login user name, try to log on the server, to crack the password, this method, although slow, but very effective.Second, violent cracking demo2.1. Basic

Under Linux, when we need to crawl network packet analysis, we usually use the Tcpdump crawl Network raw packet to a file, and then download it locally using the Wireshark Interface Network analysis tool for network packet analysis.Only recently

After this period of time to learn, I also have a certain understanding of Linux, today this blog on the previous knowledge of a summary it.The previous Linux learning blog, from the top down is learning in-depth process, my blog link is as

function Description: Displays the boot information.syntax:dMESG [-cn][-s Additional Note:the kernel will store the boot information in ring buffer. If you are too late to view the information, you can use DMESG to view it. The boot information is

This article was reproduced from: http://mp.weixin.qq.com/s?__biz=MzAxODI5ODMwOA==&mid=2666538919&idx=1&sn= 6013c451b5f14bf809aec77dd5df6cff&scene=21#wechat_redirectOn a "chat chat synchronous, asynchronous, blocking and non-blocking" has been

Linux under Bash programming character test with For Loop statement (v)1. Character test:= =: Test for equality, equality is true, not equal to False! =: Test Whether it is unequal, not equal to true, etc as false>,=,-N String: Tests whether the

CP command: cp-copy files and directories"Function" copy function, commonly used to do service configuration file backupCP means copy, is the copy of the abbreviation, copy the file and the intention to rename the file, when copying multiple files,

Guide You all know what an IP address is, right? They are assigned to devices on the network to represent them. They are assigned through a DHCP server and are often changed. There are now two types of IP addresses. A dynamic one is often

Http://zhidao.baidu.com/link?url=DkxU9CyhJb_dIUAPCmPmxRtQsENgCzqy5qnLPEj_V9DqNzdt6Qya0U5iCVRCYFkgoRomoqUS_ZO7aIikccOTta/ var file system/var contains data to be changed when the system is generally running. Usually the size of the directory in which

Linux Process Priority and nice value, linux priority nice After learning the complete Fair Scheduling Algorithm (CFS) of linux, record the learning track This article mainly describes how the scheduling algorithm works and some scheduling knowledge.

Solve the problem of Chinese garbled characters in the zabbix graph. The Chinese Character in the figure turns into square and zabbix Chinese character. [root@node03 src]# wget http://down1.chinaunix.net/distfiles/ttf-arphic-uming_0.0.20050501-1.tar.

UNIX advanced environment programming (14) file IO, unix programming 14io Spring is coming. In addition to work and study, everyone must exercise and exercise more. Haidao, which was shot in haidao Huaxi, yuandu ruins park last weekend.   Go to the

Linux getting started Tutorial: upgrade from Fedora 21 to Fedora 22 Reading directory Introduction Update all packages of Fedora 21 to the latest status. Install the fedup package Upgrade System Resolves system upgrade errors Restart the

Virtual File System (VFS), Virtual File System (vfs) Link: http://www.orlion.ga/1008/ Linux creates an abstraction layer on top of different file systems, making concepts such as files, directories, and read/write access an abstraction layer. This

SVN centralized Version Control Software Introduction: Currently, in popular version control software, SVN (centralized Version Control) is a widely used version that has been used earlier. Now git (distributed version control) is more popular. SVN