boson ccna

is of type Rstpswitch (config) #endSwitch #showspanning-tree nbsp//determine root switch, port role, port status, etc. # Link Test PC0 (Command prompt cmd) ping 192.168.1.4//link switch0switch>enswitch#conf tswitch (config) #inter f0/23 Turn off Port switch (config-if) #shutdownPC0 (Command prompt cmd) on the main link ping 192.168.1.4//link//Backup link flag changed from yellow to green, indicating backup link is enabled Lab Environment: Windows 7, Cisco PT 6.3Reference:

(VLAN) #exitSwitch #showvtp status//viewing VTP configuration information switch#show vlanbrief// Display VLAN configuration information switch#conftswitch (config) #inter f0/1switch (config-if) #switchport accessvlan The 2//divides the port into Vlan2switch (config-if) #exitSwitch (config ) #inter f0/2switch (config-if) #switchport NBSP;ACCessvlan3//divide the port into Vlan3switch (config-if) # Exitswitch (config) #inter f0/24switch (config-if) #switch modetrunk //Configure the port as Trunk

: interface fastethernet0/1s2960 (config-if) #speed 100s2960 (config-if) #duplex fulls2960 (config-if) # end//at the same time the PC0 network card to full duplex mode, 100M rate, otherwise the link is not through s2960#showinterface //Display Port All information s2960#show mac-address-tables2960#configts2960 (config) #line console0 //Entering console line mode S2960 (config-line) #password cisco //Set the login password for the console line S2960 (config-line) #login nbsp//must set the passwo

) #port-channelload-balancedst-ip//to achieve load balancing by Destination IP address switch ( Config) #exSwitch #showetherchannelsummary NBSP;NBSP;NBSP;NBSP;//Display Ethernet Channel Information Switch#conftswitch (config) #interface port-channel1 //port configuration mode switch (config) into the aggregation port #exSwitch #showinterfacesetherchannel //displaying aggregation port information PC0 (Command prompt cmd) ping 192.168.1.3//link ping 192.168.1.4//link ping 192.168.1.5//Link PassPo

//Set the host name s2960s2960 (config) #interface fastethernet0/ 1//Enter configuration mode S2960 (config-if) #exit //return to previous level mode S2960 (config) #ip address192.168.1.1255.255.255.0 //Set Switch IPS2960 (config) #ip default-gateway192.168.1.254//Set the default gateway S2960 ( Config) #ip domain-namecisco.com //Set the domain name S2960 (config) #ip name-server200.0.0.1 //Setting the domain name server S2960 (config) #no ip domain-lookup/ /prohibit Domain name resolution S2

-d:-F1,3/ETC/PASSWD represents the first field in the delimiter and the third field displayed as:-D indicates that the specified delimiter-F represents the specified delimited field2 Sort the default effect is sorting (sorted by the first letter of the first character)-t specifies the delimited notation memory mode direct-K Specify delimited fields-N Sort by number-U means that the same duplicate rows are displayed only once-F ignores character casing ignore case-R indicates reverse displaySORT-

I. How to learn LinuxFirst stage: Primary stageLinux Basics, basic commands (origin, composition, common commands such as CP, LS, file, mkdir, etc.)Linux Users and Permissions basicsLinux efficient text, file processing commands (vim, grep, sed, awk, find, etc.)Get Started with Shell scripting (learn while you practice)Second Stage: Intermediate advancedIntermediate levels need to be fully aware of the principles and Fundamentals of Linux, the upper layer of applications and services in-depth st

A computer that is not networked is scrap metal, and managing Linux must also know the network, but the web is a particularly big discipline, with principles and norms that can write three of books. Learn Linux before you can not go to test a CCNA and then learn it! If you don't learn, you must have some knowledge of the network . Understand the network management in Linux and understand the basic principles of network operation. A physical deviceearl

Objective:Share with me today a Cisco integrated small experiment, difficulty CCNA level. It mainly involves the following knowledge points: VLAN, DHCP, STP (spanning-tree) +HRSP (standby), OSPF, NAT, ACL. The GNS3 simulator is used in the experiment. The experiment is as follows:Experimental Purpose:The ultimate experiment was designed to allow the PC to access the R2 loopback interface (the Internet is being emulated here). Specific implementation d

-grant-start Save and start MySQL, no password is required at this time.Go in and execute.mysql> use MySQL;mysql> Update user Set password=password= (' Newpass ') where user= ' root ';mysql> flush Privileges;In the/ETC/MY.CNF comment--skip-grant-start this line, restart the service canWhat are the skills and professional qualities required for 17.Linux OPS engineers?This is very important, this does not say, this article only say technical things oh! /hahaThe skills that a person deems necessary

be the way to learn the 4th.5 , text-processing commandssort, tr, cut, paste, uniq, tee and so on, must learn, also unifies the 3rd time to study together. 6 , DatabasePrefer MySQL, don't ask me why not learn SQL Server and Oracle, because Linux is most definitely mysql. Additions and deletions to learn, especially to learn to check, other aspects may not be necessary, because operations and maintenance personnel use the most or check, which optimization and development statements will not le

be the way to learn the 4th.5 , text-processing commandssort, tr, cut, paste, uniq,tee and so on, must learn, also unifies the 3rd time to study together. 6 , DatabasePrefer MySQL, don't ask me why not learn SQL Server and Oracle, because Linux is most definitely mysql. Additions and deletions to learn, especially to learn to check, other aspects may not be necessary, because operations and maintenance personnel use the most or check, which optimization and development statements will not let

way to learn the 4th. 5, Text processing commands, sort, tr, cut, paste, uniq, tee, etc., must learn, is also combined with the 3rd time to learn. 6, the database, the preferred MySQL, don't ask why I do not learn SQL Server and Oracle, because Linux is used to be the most absolute MySQL, adding and removing changes must learn, especially to learn to check, other aspects may not be necessary, because the operation and maintenance personnel use the most or check, What optimization and developmen

the 3rd will be the way to learn the 4th.5. Text Processing commandsSort, tr, cut, paste, uniq, tee, etc., must learn, is also combined with the 3rd time to learn.6. DatabasePrefer MySQL, don't ask me why not learn SQL Server and Oracle, because Linux is most definitely mysql. Additions and deletions to learn, especially to learn to check, other aspects may not be necessary, because operations and maintenance personnel use the most or check, which optimization and development statements will no

field in the course table, update the course table with course_new * * UPDATE (SELECT/*+ BYPASS_UJVC */a.no,a.course_name,b.no as bno,b.course_name as BnameFrom COURSE a,course_new BWHERE a.no=b.no)SET No=bno,course_name=bnameCOMMIT; /* Use the Insert/update and merge commands separately to update the records in the course table with course_new, or update if they exist insert*/--implemented with merge as follows: Insert into Course_new (no,course_name)--for ease of operation, insert a record in

Subdivision Direction First stage: Entry-level The primary stage needs to clear the Linux learning route, any learning is step-by-step, so learning Linux also need to have a certain route, personal advice to learn the route as follows: Linux Basics, basic commands (origin, composition, commonly used commands such as CP, LS, file, mkdir, and other common operations commands) Linux User and Permissions basics Linux System Process Management advanced Linux efficient text, file processing comm

1 Cisco Packet Tracer How to use I. Introduction to the use of Packet Tracer The Cisco Packet Tracer is a simulation software developed by Cisco for the Cisco Network Technology Institute, which can be used to simulate CCNA experiments. We also conduct our experiments as simulation software. The following four aspects of the software to do a brief introduction. 1, the basic interface. 2, select the equipment, select the required mod

machines will also collect all traffic, these traffic must contain a lot of unencrypted sensitive data such as user name, password, etc., it is assumed that these virtual machines have a machine is hacked or illegal use, this will bring great security problems.Scenario Two: Virtual hosts for applications and databases are randomly allocated on a host in a virtualized clusterThis scenario is actually a combination of scene one and scene two, most of the customers in order to avoid a single hardw

security researcher at the InfoSec institution. INFOSEC Institute is an organization that provides CEH certification and CCNA training training.Reference documents[1] penetration testing with improved Input Vector identification, William g.j. Halfond, Shauvik Roy Choudhary, a nd Alessandro Orso College of Computing Georgia Institute of Technology[2] Security Tools benchmarking–a blog dedicated to aiding Pen-testers in choosing Tools it make A differe

human beings. In turn, the shell is, in fact, what humans tell the machine at some point, what it does, what it does, and what it does, except that the operating system is made up of the basic elements of the file. Therefore, the shell is to find the required files, that is, what behavior to use.　　And a certain moment, the completion of what can be understood as parameters, to achieve the effect depends on the user's familiarity with a variety of commands, because a number of commands (a number