ccna command guide

Tags: ccnaThe more complex the interconnection network environment is, the more likely the network is to fail in terms of connectivity, and the cause of the failure is hard to confirm. Before a network failure occurs, the network administrator should constantly monitor network changes and make timely adjustments to prevent problems. When a network fault occurs, appropriate methods and tools should be used to determine the root cause of the fault, and correct troubleshooting plans should be made.

ICMP Echos to 192.168.20.1, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 24/48/84 MS From the above, we can see that through the deployment of layer-3 switching technology, the host between VLANs can communicate with each other. This experiment is complete. [PL1]Disable layer-3 routing to simulate hosts. [PL2]Define the default gateway. [PL3]Enable the layer-3 routing function. By default, the layer-3 Switch disables the routing function. To enable int

The initial command for routing configuration-CCNA takes notes when I used to study NA, now I have time to share with you ==================================== ========================================================== =====================www.2cto.com show hosts show current host name configuration show sessions show current outgoing TELNET session clear line XXX clear line

PHP command line command instructions, php command line instructions. PHP command line Command Guide. php command line guide when a user ope

This article mainly introduces the PHP command line command user guide, which is the basic knowledge in PHP getting started learning. if you need a friend, refer to when you open the php page, the server executes PHP commands and sends the execution results to the user's browser. This is similar to ASP and CoildFusion. PHP can run on WINDOWS and multiple versions

This article mainly introduces the PHP Command Line command user guide, which is the basic knowledge in PHP beginners. If you need it, refer This article mainly introduces the PHP Command Line command user guide, which is the basi

This article mainly introduces the PHP command line command user guide, which is the basic knowledge in PHP getting started learning. if you need a friend, refer to when you open the php page, the server executes PHP commands and sends the execution results to the user's browser. This is similar to ASP and CoildFusion. PHP can run on WINDOWS and multiple versions

Original: http://www.oracle.com/technology/global/cn/pub/articles/calish-find.html Linux Find command Proficient guide Author: Sheryl Calish Briefly describe the powerful aspects of this ubiquitous command and the confusing aspects. Released in July 2008 The Linux Find command is one of the most useful in all Linux com

Label:MySQL Beginner usage Guide and introduction One, connect MySQL Format: mysql-h host address-u user name-P user Password1. Example 1: Connect to MySQL on this machine.First open the DOS window, and then enter the directory Mysqlbin, and then type the command mysql-uroot-p, enter after the prompt you to lose the password, if just installed MySQL, superuser root is no password, so directl

In the "Linux file command proficiency Guide", we discussed the basic information required to take advantage of the most basic and commonly used Linux file commands. In this article, I will discuss Linux system commands in the same way. In the previous article, we learned that in the Linux/UNIX world, everything is seen as a file, including system management commands. For organizations alone, we have discus

In the Linux File Command Master Guide (above), we discussed the basic information needed to leverage the most basic and most common Linux file commands. In this article, I will discuss the Linux system commands in the same way.As we learned in the previous article, in the Linux/unix world, everything is considered a file, including system management commands. Individually for organizations, we discussed fi

In the Linux File Command Master Guide, we discussed the basic information needed to leverage the most basic and most common Linux file commands. In this article, I will discuss the Linux system commands in the same way.As we learned in the previous article, in the Linux/unix world, everything is considered a file, including system management commands. Individually for organizations, we discussed file comma

MySQL beginner's guide and introduction 1. Connect to MySQL.Format: mysql-H host address-u user name-P User Password1. Example 1: connect to MySQL on the local machine.First, open the DOS window, enter the directory mysqlbin, then type the command mysql-uroot-P, and press enter to prompt you to enter the password. If you have just installed MySQL, super User Root has no password, so press enter to enter m

Linux Command proficiency GuideAuthor: Sheryl calish Introduction to system commands for Linux beginners In the "Linux file command proficiency Guide", we discussed the basic information required to take advantage of the most basic and commonly used Linux file commands. In this article, I will discuss Linux system commands in the same way. In the previous artic

:29ff:fed3:e453/64scope: Linkupbroadcastrunningmulticast MTU:1500Metric:1RX Packets:62130errors:0dropped:0overruns:0frame:0tx packets:61216errors:0dropped:0overruns:0carrier:0 collisions:0txqueuelen:1000 RXbytes:6324018 (6.0NBSP;MIB) TXbytes:11965210 (11.4 MiB) lolinkencap:localloopback inetaddr:127.0.0.1Mask:255.0.0.0 inet6addr:::1/128Scope:Host UPLOOPBACKRUNNINGMTU:16436 metric:1rxpackets:4errors:0 dropped:0overruns:0frame:0txpackets:4errors:0 Dropped:0overruns:0carrier:0collisions :0txqueuele

Sqlplus command User Guide Sqlplus command User Guide (1)Anyone familiar with Oracle knows that SQL plus is an important tool for dealing with Oracle. SQL plus itself has many commands that can help us do many things, including generating standardized reports and providing human-computer interaction. Below, I will bri

I'm curious about the Linux system and want to play on the machine. I spent one night busy yesterday and finally installed Linux. But it was a little too early. I thought it was as simple as entering Linux. I didn't think it was as easy as popping up a pilot command (grub) To Let me guide, I saw it numb. Not at all. There is no way I can't help it. I just shut down and went to bed. At noon today, I went onl

/remove entry, select grub for Type, add the Name you want in Name, and write a file such as archlinux, driver: select the partition where linux is located. The selected partition must be the same as the location where grub was installed when linux was just installed. The Partition Number Partition X may be different from that used in linux installation. The hard disk size is used to determine the Partition Number. After saving the add entry, you can see two options in view settings. One is orig

Keyword sqlplus command usage guide /*------------------------------------------------------------------------------------ /* Welcome reprint, please keep this part of the information /* Ongyan 2004-1-15 /*------------------------------------------------------------------------------------ Five report making orders Report making commands are the most important sql*plus commands that are often used by

Linuxgrep command operation guide ① defines www.2cto. comgrep is a row-level device that analyzes a row of information. if there is any information we need, the whole row will be returned ② for the comparison of string data, print the string that meets your needs in the ③ format... information nb Linux grep command operation