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Cisco CCNA Certification Package contains these Exam-Packs:Exam-Pack 640-822: ICND1Welcome to the world of Cisco networking, and to Cisco’s newest entry-level certification. The ICND1 Exam-Pack gives you the foundational knowledge you need to set up and manage small- to mid-sized Cisco networks, plus prepares you for CCENT Certification.Exam-Pack 640-816: ICND2The ICND2 Exam-Pack teaches you how to manage mid- to large-sized Cisco networks. Plus once you’ve passed the ICND1 and ICND2 exams, you will have earned Cisco’sDownload Link:http://rapidshare.com/files/135991883/CBT.Nuggets.CCNA.part01.rarhttp://rapidshare.com/files/135997773/CBT.Nuggets.CCNA.part02.rarhttp://rapidshare.com/files/136002753/CBT.Nuggets.CCNA.part03.rarhttp://rapidshare.com/files/136011073/CBT.Nuggets.CCNA.part04.rarhttp://rapidshare.com/files/136015567/CBT.Nuggets.CCNA.part05.rarhttp://rapidshare.com/files/136007131/CBT.Nuggets.CCNA.part06.rarhttp://rapidshare.com/files/136000772/CBT.Nuggets.CCNA.part07.rar. Run remote commands on a Cisco router from your PC Can you go to a Windows command prompt and run a command on your router? Usually, you would have to Telnet or SSH to the router first to run the command, right?While this approach works, you can also run router commands without leaving the Windows command prompt, which can come in handy for scripting and automating router management. Let’s take a closer look.What is remote shell (rsh)?Remote shell (rsh) is a command-line program commonly found in UNIX and Linux systems.
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Using rsh, you can remotely execute command-line programs on a remote system. This could be another UNIX or Linux system, or it could be a Cisco router or switch. Rsh was part of the BSB UNIX operating system and included with rcp (remote copy) and rlogin (remote login).While most Linux administrators are already familiar with rsh, some Windows administrators might not be. In fact, Windows XP and Windows Server 2003 both include rsh.
Figure A shows a screenshot of using rsh at the command prompt.What is remote shell (rsh)?However, when working with rsh, it’s important to remember that rsh is insecure — it does not encrypt the communications between the remote device and the system. You should always configure rsh as securely as possible on the router by locking down the IP address of the management machine and the username.However, even when taking such precautions, rsh is still very insecure compared to SSH. It’s a good idea to use rsh only on a protected, secured, internal network.
(By the way, if you’re allowing rsh through a firewall, it uses TCP port 514.)How do I configure rsh on my router?To be able to run a command on a Windows PC, have it go to the router, execute the command, and then return the output to you, all you need to do is enter two commands. Let’s walk through the process.First, you need to enable the remote shell services on the router. The Cisco IOS calls the remote shell service ip rcmd. To enable this service, enter the following command when in Global Configuration Mode:Router(config)# ip rcmd rsh-enableSecond, you need to configure the permissions for your workstation and your user to be able to perform these remote shell commands. Here’s an example of this command:Router(config)# ip rcmd remote-host root 192.168.1.45 ddavis enableLet’s take a closer look at this command. The ip rcmd remote-host part is required. Next, you enter the local username on this router of the user that the remote shell will log in under when it runs commands.
In this case, we used the local user root.Next, 192.168.1.45 is the IP address of the management workstation that we want to allow to execute these remote shell commands — in other words, the IP address of the PC. Next, you see my local Windows username: ddavis. In this case, that’s the name of the user logged into the Windows XP machine as well as the user who will be executing the rsh command in Windows. If I were running a batch job script that executed the Windows rsh command, I would need to enter the Windows username of the user that the batch job was running under.Finally, the command contains the enable keyword. This allows the remote shell user access to enable the mode on the router.
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I could take this a step further and specify the level of access allowed (i.e., levels 1 through 15).Keep in mind that these two commands assume you already have the router configured and you already have a local user called root. If you don’t have a root user, you can use the following command to do so:Router(config)# username root privilege 15 password CiscoHow do I use rsh from my Windows workstation?Once you’ve configured the above commands, you can easily run a remote shell command from the Windows command prompt. Figure B offers an example.Figure BHere’s the actual command I used:Z: rsh Router1 -l root sh verHere’s how the command works:.The hostname is the first thing specified (in this case, Router1).Next, I used -l (i.e., the letter L) to specify the remote username that I will use to log in. (Keep in mind that I still have to be user ddavis on the local Windows PC for the security to work.
Also, I have to come from the IP address that I’ve specified — in other words, this wouldn’t work from another workstation.).Finally, specify the command. In this case, I ran the show version command (or sh ver).What can I do with the rsh command?In addition to using the show version command, you can also run the show running-configuration (sh run) command or any other privileged level command. Here are some more examples:.show ip interface brief.show ip route.show ip ospf neighbors.show ip bgp summary.show logWhat you can’t do is run a Global Configuration Mode command, such as enabling an interface or configuring an IP address. This usually limits you to the show commands.However, one very useful thing you could do is copy your current configuration to a TFTP server and do it inside a script initiated on the Windows server.
For example, you would use the copy running-configuration tftp:/1.1.1.1 command.What else can I do with remote commands?If you check out the Cisco IOS documentation that covers remote commands, you’ll find that there are a number of options you can use with the remote shell commands. One of the latest features in the Cisco IOS is that you can authenticate incoming rsh and rcp commands using a Cisco IOS access control list.One of the more interesting variations is that you can use remote copy (rcp). So, I could copy a file using the Windows rcp command from my PC to the router or from the router to the PC — without ever using TFTP or FTP. (You can enable rcp with the ip rcmd rcp-enable command). Java is so cool. Imagine being able to compile one piece of code and have it run on nearly any operating system, from Windows and Macintosh to Linux, Unix and the Internet.
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Apache is one of the most popular Web servers on the Web right now, and part of its charm is that it's free. It also has a lot of features that make it very extensible and useful for many different types of Web sites. It is a server that is used for personal web pages up to enterprise level sites.We will also be discussing on how to use PHP in your web server to good effect.Apache is possibly the world's most popular Web server. It is the most widely used and because it is released as 'open source' and with no fee for use, it has had a lot of modifications and modules made for it.
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The IT Infrastructure Library Foundation series gives you hands on skills for doing IT service management and using the IT Infrastructure Library set of best practices. These skills are required to move into IT management in many organizations. The Windows Server 2003 Simulator gives you the most realistic and sophisticated Windows Server 2003 simulation tool on the market today.MCSE Lab Simulation Software offers rich, full-scale open Microsoft Windows Server 2003 simulations that allow users to view and practice network configuration and troubleshooting, and develop the necessary skills for the scenario-based MCSE exams, even if they don't have access to a network or software.Open simulations for Microsoft Windows are critical to the training process. They replicate a real network system and let students execute the same job they can perform on the real system.Open simulations allows MCSE students discover various answers for completing a task, and view the outcome of specific actions.
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Two protocols for which specific fixup behaviors were developed are DNS and SMTP. The DNS fixup originally implemented a very simple but effective security policy; it allowed just one DNS response from a DNS server on the Internet (known as outside interface) for each DNS request from a client on the protected (known as inside) interface. 'Fixup' has been superseded by 'Inspect' on later versions of PIX OS. Download here. A Wireless Wide Area Network or WWAN is wireless connectivity to the Internet achieved through using cellular tower technology. Cellular services like AT&T™, Verizon™ and Sprint™ offer WWAN for a monthly fee, or alternately on a pay-as-you-need-it basis. WWAN connectivity allows a user with a laptop and a WWAN card to surf the Internet, check email, or connect to a Virtual Private Network (VPN) from anywhere within the regional boundaries of cellular serviceAs people become more dependent on online technology to conduct business and keep information flowing, wireless connectivity has become a virtual necessity.
Many hotels and communities offer local connectivity, but coverage is often spotty or nonexistent. WWAN can all but guarantee connectivity when you need it. To take advantage of WWAN, a user must first purchase a WWAN PC card for his or her laptop unless WWAN connectivity is built-in. By purchasing the card and paying a monthly fee, one need only slip the card into the PC-card slot (formerly known as the PCMCIA slot) to access the WWAN.
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Plans vary among providers but most are rated according to data download caps, with unlimited plans running about $80 US Dollars (USD) per month. Data transfers of 5 Megabytes per month can start as low as $20 USD.In some cases a person may not require 24/7 access to a WWAN, but would like to use it occasionally when free local networks are not available. In this case some WWAN providers will charge by the day for connectivity. By using the WWAN card, the user commits to a small charge, securing a 24-hour pass. At the end of the 24-hour period access to the WWAN is denied unless the user purchases another pass.As an alternate to a WWAN card, it is possible to connect some cellular phones directly to a laptop using a Universal Serial Bus (USB) cable. The cell phone acts as a modem to patch the laptop into the Internet.
This is only possible with certain cellphone models and plans, and the data transfer speed will be slower than connecting with a WWAN card. Before using this method, check with your cellular provider to see what charges (minutes) might apply, if any.
While there are certainly less expensive ways to get wireless connectivity in many cases, none cover the territory offered by WWAN for those visiting, living or working in remote or “nonwired” areas. WWAN is commonly available in regions where services like Digital Subscriber Line (DSL) and cable might not be. It can also be an international solution for global travelers, offering one more option for staying connected.