varratio= 1 /(Window.devicepixelratio||1); //window.devicepixelratio: The pixel ratio of the browser. document.write (''+ratio+', minimum-scale='+ratio+', maximum-scale='+ratio+', User-scalable=no "/>') //Set HTML font size varsize=Document.documentElement.clientWidth/7.5;//calculated in 750 dimensions //The font-size of HTML to be set is 100px, which is 1remdocument.getElementsByTagName ('HTML')[0].style.fontsize=size+ 'px'; Script> Head> Body>
, therefore the version number in The/etc/profile Woul D reflect as 5.7.0
Save the/etc/profile file and exit
Reload the/etc/profile file by issuing the following command
type/copy/paste: . /etc/profile
Make sure you enter a. And then a space in order to reload Your/etc/profile file
Once the/etc/profile file is reloaded issue the following command you can type the following commands to make sure yo ur Ubuntu Linux System recognizes that the Qt SDK have been acc
saver to enter a password when it resumes, and then the lock screen issue becomes a startup screen saver. Lock the screen via a keyboard shortcut This article describes the specific implementation methods. The first step is to find "security and privacy" under "System Preferences", and on the "General" page, tick "Enter your password immediately after going to sleep or start screen saver". The second step is to start the screen saver with a shortcut key, which is relatively complex. Find "Autom
"Background and purpose" to improve operational efficiency and Linux usage experienceStepsExample: (ESC +.) Indicates that the ESC key is pressed first and then in English.1, ESC +. Enter the last parameter of the previous command2,!! Execute the previous command directly3, CTRL + u Delete the content before the cursor (mistakenly deleted?) No matter, ctrl+y paste back)4, CTRL + K Delete the content after the cursor (mistakenly deleted?) No matter, ctrl+y paste back)5. CTRL + A cursor moves to t
1. Move cursor shortcut keysctrl+f move forward one character ctrl+b Move backward one character alt+f move forward one word alt+b Move backward one word Ctrl + A moves to the beginning of the current ctrl+e Move to the end of the current line ctrl+l Clear the screen and start a new line at the top of the screen 2. Edit command-line shortcut keysctrl+d Delete the current character ctrl+t Swap the position of the current character and the previous character alt+t Exchange The position of the curr
numbersrandom:0-32768Random number generator: Entropy pool/dev/random:/dev/urandom:Terminal type:Console: Consolespty#: Physical Terminal (VGA)tty#: Virtual Terminal (VGA)ttys#: Serial Terminalpts/#: Pseudo TerminalWrite a script that generates 10 random numbers using random, and finds the maximum and minimum values;#!/bin/Bash#declare-I. max=0Declare-I. min=0 forIinch{1..Ten}; DoMyrand=$RANDOM [$I-eq1] min=$MYRANDif[$I-le9]; Then Echo-N"$MYRAND," Else Echo "$MYRAND" fi[$MY
destination public address can be reached via the Internet. For example, when a CIDR block is assigned to an organization in the form of a network ID and subnet mask, the corresponding [network ID, subnet mask] is also stored as a route in the router in the Internet. An IP packet that targets a address in a CIDR block is directed to the corresponding location.
In this article I'll show you how to view your public IP addresses in several Linux terminals
also take into account the security risks and benefits of VDI.
In this article, we will look at what VDI means for enterprise terminal security and how to assess and mitigate VDI security risks.
VDI Security Advantages
VDI enables the decentralized deployment of virtual desktops in a given network of different nodes. Therefore, if a particular organization wants his users to operate on a Windows 7 system, the system administrator simply assigns a baseline image to each node of the network.
From:http://linux.chinaunix.net/techdoc/system/2007/11/23/973027.shtmlIn the use of Linux/unix command-line terminal, sometimes encounter keyboard backspace, delete keys, home keys, direction keys, such as do not listen to the phenomenon:Press the BACKSPACE key, may pop up a ^?Press the DELETE key, but come out a ^[[3~Press the home key, but come out a ^[[1~Press the left ARROW key, but come out a ^[[d......The following are shortcuts that can be used in most shell
How can Apple Mac OS open app apps with command line terminals? Sometimes the configuration file on the Mac OS platform will need to open the app application at the Mac terminal. The following small Lego for everyone to share Apple Mac OS open app app with command line Terminal tutorial, let's learn it!
Open the terminal to enter Open/applications/xxx directly (the name of the application). App like Open ITunes input: Open/applications/it
1. Start Terminal
1 point Menu "application-attachment-terminal" command, open a terminal window;
2 out of a terminal window, the title bar is their own username and computer name, a cursor in the window flashing a flash, indicating that you can enter the command;
;
The above ~ represents its own home folder, $ represents the normal command prompt, and if it is a #, it is the administrator prompt;
2. Common commands
1 ls command, after the prompt $ input ls, and then press EN
principle of judgment:
JavaScript is the primary language for front-end development, and we can write JavaScript programs to determine the type and version of the browser. JavaScript can determine browser types in general there are two ways, one is based on a variety of browser-specific properties to distinguish, the other is by analyzing the browser's useragent properties to judge. In many cases, after the value is judged by the browser type, it is also necessary to judge the browser version
command, we need to define the filename, block size, and chunk size:
DD If=/dev/zero of=filename bs=1024 count=1000
If you want to create a file with a capacity of 100MB, you need the following command.
DD If=/dev/zero of=largetestfile.img bs=1024 count=0 seek=$[1024*100]
Use disk tool to wear large blank files
1. Although users who want to use large-capacity blank files may prefer the terminal command line, disk utility applications can do the job well.
2. After opening the d
Session|web
How to apply session to develop non-web terminals
Protocol S
-Author Sunggsun @ 20:27
Session is a more effective means of information interaction on the Web. It is favored by many web developers because of its convenient, stable, safe and reliable use. Especially in the Internet identity authentication, online electronic shopping and other aspects of the application is more extensive. Coincidentally, the author in the developme
another window opened by Xtermlinux-umlhem:/dev/pts #linux-umlhem:/dev/pts #Echo "Test">/dev/tty0//output to the BMC Open console terminalLinux-umlhem:/dev/pts #Echo "Test">/dev/tty6//output to the BMC Open console terminal FAQWhat is Q:/dev/console?A:/dev/console is the console, which is the device that interacts with the operating system, and the system outputs some information directly to the console. Users are currently allowed to log in to the console only in single-user mode.What is Q:/d
analog transmission is still used between users and telephone bureaus, which is prone to distortion due to the accumulation of Noise along the way. For ISDN network terminals, user line digitalization is realized, end-to-end digital connections are provided, and the transmission quality is greatly improved.
As the ISDN network terminal implements end-to-end digital connection, it can support various services including voice, data, and image. As elect
Origin of hosts, consoles, and terminals in LinuxGuideIf you have seen some desktops, most of them are like this. The keyboard, display, and chassis can be separated. Even if the chassis and the user are not in the same room, the computer can still be used as long as the line is connected. In the early days, the chassis was indeed separated from the keyboard and display.Do you know the origins of hosts, consoles, and
broadband unlimited, how the Red dust rolling "and so on, has now become a reality." The difference is that Google G1 can share the network with the computer directly after the Internet, while Samsung X199 only as a dial-up peripheral. Google G1 is a smartphone similar to a micro-computer, and Samsung X199 is only one of the computer's hardware.
The original seven or eight years have passed, my hardware needs have not changed: Mobile + notebook computer. Mobile phone can be charged with the co
) device authentication: Verify that the endpoint device has a valid physical address, IP address, and security status.
(6) authorization and access control: regulate network users to access networks based on the roles of enterprise employees in the Enterprise
2. Key to implementing real-name management-Access Control
The key to implementing real-name management is to solve the security access problems of users and terminals, that is, to implement acc
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