Linux

ARP spoofing:/* Normally the computer sends traffic to the gateway and deceives the traffic to the network card of this machine and forwards the machine to the gateway */--"First:Use FPING-ASG IP segment/* to scan a surviving host in a segment

Because the scripting requirements need to get the first second of last month and last month's final second, consult the relevant information, and through their own practice. The following methods have been found to meet the requirements. In this

Nreturn Value:The fork function is called once, but returns two times: 0 is returned in the child process, the child process ID is returned in the parent process, and the error returns-1. By returning a value, you can determine whether it is in a

The main tools for Ethtool to check, the main focus on the field of "Link detected", note the following output, where em4 is physically not plugged in the network cable, and EM1 is plugged in:# Ethtool Em4settings forem4:supported ports: [TP]

Debian from 7.0 to support the path of the multiarch,64-bit library to/usr/lib/x86_64-linux-gnu, mint, ubuntu These derivative versions have not been changed I am not clear.Deepin Linux is based on Debian, so the library path is

We know that the function name is a memory address that points to the entry of the function. The calling function is the push-in parameter, saves the return address, and jumps to the code that the function name points to. The problem is that if the

"copyright notice: respect for the original, reproduced please retain the source: blog.csdn.net/shallnet. The article is for academic communication only and should not be used for commercial purposes "    the memory image of a process consists of

1. installation files Rhel5.1-server-20071017.0-i386-dvd.iso2. Directory structure/bin: Store Common commands/boot: Store startup program/dev: Store device files/etc: Store startup, shutdown, configuration programs and files/home: User work root

Reprint: http://blog.csdn.net/jay900323/article/details/181412171. Conceptual understandingIn network programming, we often see synchronous (sync)/async (Async), blocking (block)/non-blocking (Unblock) Four call modes:Synchronous:The so-called

CP command CP--Copy copy Copy fileFormat: CP source file Destination file650) this.width=650; "src=" Http://oqjg6c4c1.bkt.clouddn.com/1496737976647.jpg "alt=" CP file "style=" Border-style:none ; "/>So easy~Copy Directory format: cp-r

Under Ubuntu Open port seems to have two main methods, one is Ubuntu comes with the firewall, one is iptables, here we mainly use iptables. The system version for this article is ubuntu14.04 and ubuntu16.04 Installing IptablesIn general, when

The local environment remotely connects the Linux GUI, the common Realization tool has, VNC, puty, Xshell, etc.Here we use the Xshell manager;Xmanager Introduction:Xmanager is a high-performance X-Server software that runs on Windows platforms. It

Talking to the pipe above, you can communicate between the processes that are related.How do I communicate with unrelated processes? This article will talk about named pipe FIFO.First, the conceptNamed pipe FIFO, which provides a path name

Installing RAR for Linux under Linux (64bit)wget http://www.rarlab.com/rar/rarlinux-3.8.0.tar.gzTar Xvfz rarlinux-3.8.0.tar.gzGo to the installation directory cd/usr/local/rar/perform the compile and install operation make && make installThis time,

Linux under the daily production log log file, if not regularly deleted, sooner or later squeeze the hard disk, if manually deleted, several times can, not a permanent. These things to the Linux system can be solved.Test environment:System: CentOS 6.

When the Linux server is in the wrong time, you can use the Ntpdate tool to correct the time.Installation: Yum Install NtpdateNtpdate Simple usage:# ntpdate IP# ntpdate 210.72.145.44The following are some of the available NTP server addresses:Common

Simply put, the system must provide some services (both the system itself and the network) for certain functions, which are called service. However, service delivery always requires the operation of the program! Otherwise how to run it? So we're

As a child, the family set the "reader" of the monthly magazine, which recorded a story: said there is a lonely countryside one day suddenly came a beautiful woman, she with sung children in the local home, became the local squire. She kept the

Common Linux Command shortcuts and linux shortcuts Auxiliary operations for command line editing: Tab key: auto-completion Ctrl + U: clear to the first line Ctrl + K: clear to the end Ctrl + L :( or clear) clear Screen Ctrl + C: cancel the

Disk quota, Disk quota Disk Quota 1. Enable Disk Quota First, create a new partition/dev/sd5 and create a file system. [Root @ local ~] # Mkfs. ext4/dev/sda5 Because xfs does not have a disk quota, ext4. Mount the/dev/sda5 partition to/home. [Root @