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Packet capture analysis is usually required when debugging network programs in Linux. Tcpdump in Linux is good. By default, Ubuntu has been installed. The following is a practical example. for example, I have a C ++ program listening to the local

Shell_03 advanced operations on advanced operations text: wc-c-l-wdiff -- view different places between two files and compare the two files. -B ignore space caused by different-I ignore case-B ignore Insert space caused by changes sort -- sort-r

Hard disk and partition number in GRUB, UUID hard disk number: first, if you are a single hard disk, you do not need to think about it, it will only be hd0. What if there are two or more hard disks? You can do this: when the BIOS screen appears

Install apache in source code and configure forwarding. 1. install Apachea. unzip the package: tar-xvfhttpd-*; B ). /configure -- prefix/usr/oracle/apacheCC & quot; gcc-m32 & quot; \ -- enable-proxyshared -- enable-proxy-httpsh source code install

Summary of LinuxShell script introduction: There are two common commands for printing on a terminal printing terminal: echo and print. first, I will introduce echo1.echoecho, which accepts three types of parameters. The example is as follows:

The basic structure of the linux system and the structure of the file system (configuration illustration) the linux system includes four parts of the vLinux kernel vLinuxShellvLinux application vLinux file system: & amp; Oslash; kernel is the heart

Debian Default editor nano usage here declare ^ represents the ctrl key on the keyboard, as long as the previous programming friends should be clear, ^ G represents pressing ctrl and g (F1) at the same time) the same is true for pressing (F1).

LinuxMint13 to build a gitolite server 1. First, read LinuxMint13 to install and access git without a password. in this blog post, we will talk about the client's id_rsa.pub running ssh-copy-id-I ~ /. After ssh/id_rsa.pubgit @ localhost, the content

Use git overview (study Note 1) to configure gitconfig -- globaluser after git installation. name & quot; // The configuration name of the global domain is namegitconfig -- globalusre. email & quot; name@email.com & quot; // global use git one

The switch Shell in the front and back of a Linux task Supports Role control. you can use the following commands to switch between the front and back ends: 1. command & amp; let the process run 2.jobs in the background view the process running in

Ubuntu offline installation package 1 application scenario a when we need to install the same software on multiple computers, and this software is very large, when downloading ubuntu that requires software installation for a long time, you cannot

Correct shutdown in Linux method 1 prepare before shutdown 11 observe system usage status 12 notify online users shutdown time 2 shutdown command 21sync22shutdown23reboot24halt25poweroff3 execute level 31 levels 32 levels switch 1 prepare Linux to

After the Linux (CentOS) partition server supplier gave the linux server a command, it was found that the partition with root and data is too small, only about 300 GB, but the home is as high as GB, space Utilization is very problematic. Therefore,

Common Linux network commands are commonly used in Linux to help us monitor network conditions. The 1Tcpdump command tcpdump can completely intercept the headers of packets transmitted in the network for analysis. It supports filtering of network

There are a lot of articles about the Linux kernel build on VMware on the network of the Linux kernel build method on vmware. The main problem is that the kernel cannot be started normally after buildc is successful. this is a bug of vmware and

After Centos is adjusted to minimize installation, many servers are enabled by default, which is useless for running the servers. Minimum installation I am used to choosing the following package group AdministrationTools administrator tool Base

Replace the strings in the file with the & mdash; command in Linux. if you want to replace a string in a text file, use the sed command. The following is an example: replace all the desc strings in the testtxt file with helloworld. use the sed Linux

Bash shortcut commands are stored in Bashshell. Note the following shortcut keys to greatly improve the efficiency of your command line operations. Edit command Ctrl + a: move to the beginning of the command line Ctrl + e: move to the end of the

The nohup command is a simple and useful nohup command in UNIXLINUX. common processes run in the background with the & amp; symbol. if logout is started on the console of the program, the process is terminated immediately. One way to implement the

In linux, use ssh to encrypt vnc. if you want A (19216801) to access vnc of B (19216802), use ssh to encrypt it. First let B generate the public key and private key, pass the public key to itself to encrypt, and then pass the private key to A. when