CCNP Certification / BCMSN Exam Tutorial: Server Load Balancing (SLB)

If your BCMSN exam on the road to the CCNP certification, read in length, as the routers and switches from Cisco Multilayer can work to provide router dismissal - but there is another useful service, Server Load Balancing the fact that also applies to the server. Although HSRP, VRRP, CLBP and represent multiple physical routers all the guests as a single virtual routers, SLB several physical servers is staffed as a single virtual server.
In l & 39; following example, three physical servers have been placed are in the group Serv Farm SRB. They are the guests that the virtual servers 210.1.1.14.
The hosts try to communicate with the server to 210.1.1.14, not knowing that & 39, they really are, with the routers in Serv farm. This allows quickly cut & 39, if one of the physical server fails, and will continue to hide the IP addresses of servers ServFarm.
The in the basics of SLB server, including, followed by the creation virtual server. We will d & 39, first 210.1.1.11 to the server will be closed:
MLS (config) ip SLB serverfarm ServFarm
MLS (SLB-config-sfarm) real 210.1.1.11
MLS (SLB-real-config) inservice
The first command created the farm, with the real order specifying the IP address of the & 39; actual server. Inservice The command is responsible for the SLB d & 39; examine the server, the server closes the work. The actual and inservice command must be repeated for each server on the server farm.
To the virtual server:
MLS (config) ip SLB vserver VIRTUAL SERVER
MLS (SLB-VServer-config) serverfarm ServFarm
MLS (SLB-VServer-config) virtual 210.1.1.14
MLS (SLB-VServer-config) inservice
From top to bottom, the vserver VIRTUAL SERVER was appointed, the farm Serv farm. The virtual servers assigned l & 39; IP address 210.1.1.14, and the links are allowed, once the order is inservice May applied.
You would also like to take control of your network can score with the virtual server. When host or sub-networks are named, with the customer, they are the only customers can connect to the virtual server. Note that this command masks Joker. The following configuration should allow the guests on the subnet 210.1.1.0 / 24 to connect to the quasi-server.
MLS (SLB-VServer-config) 210.1.1.0 0.0.0.255
SLB client-server is to respond , HSRP, VRRP, and GLBP - but you still need the knowledge to a CCNP! The knowledge of redundancy strategies and protocols is essential & 39; today in the nets to ensure that you are probably & 39, with SLB before them on the exam.
Chris Bryant , CCIE 12933, is the owner of the & 39; advantage Bryant (http://www.thebryantadvantage.com), leader of the free CCNA and CCNP tutorials, The Ultimate Package Study CCNA, CCNP Ultimate d & Packages amp; 39 studies, CCNA CBT and video training. Change the CCNA investigation, testing and BSCI BCMSN exam with Chris Bryant, CCIE 12933!
For a copy of his free ebooks, & quot; How To Pass The CCNA & quot; and & quot; How to Pass & quot; CCNP The website and copies! You can now receive free CCNA and CCNP exam question, every day, without e-mail registration required. Receive your CCNA study guide The Bryant Advantage!



Bookmark it:

How To Recover Deleted Files And Folders?

Let& 39;s start with some basic c & 39, so that & 39; is what we hear, through the cancellation? & quot; remove the abolition d & 39; one element of the data & 39, a file or delete a file from the CD & quot;. Delete are two types: -1 & gt; DeletionIn temporary file in the Trash. This process is done simply by pressing the Delete " ", the keyword, or select the file or folder and it.2 & gt; permanent DeletionIn this file & amp , 39; n is not in the trash c & 39, ie & 39; that they can be removed. This process is by pressing Shift + Del together.Here us would support the document was finally cleared, Shift + Del keyboard.Let by Operation & 39; see & 39; other side of the coin , c & 39,-l & 39; within the hard disk and know the answers follow question.1. As the data is stored in our computer-2. How will this data from the system & 39, operates 3rd & 39; What happens if the data are deleted? Our stock-c & 39, that the hard disk is logically split into two parts by the system & 39; operation. In a part of the data are stored and in the other part & 39; address is stored. If we delete the data system updates d & 39, operates a flag in the & 39; address the hard part, making the system & 39, operates recognize that the following File is deleted. Now the truth is that the data are always there on the hard disk. A l & 39; Today, we know that the data exist in the system, we must find ways d & 39; access to this data.For access to this data is erased, we need software Somedata resumption. You can create your own database software, but I recommend d & 39; go Stellar Phoenix recovery.Download file is deleted the software here: http://www.stellarinfo.com/deleted-file-recovery.htm Review: Not install Stellar Phoenix File Recovery is accounted for by the partition where you try to recover the data. This results in May your lost data overwritten and could also cause permanent damage. Start the program the group item to Stellar Phoenix File Recovery deleted. Select & 39; logical drive & 39; strong & 39; menu & quot; or select Ctrl + O & quot; with the keyboard, a window as shown below should be. Select the logical drive from which you need to delete the files, and then press & quot; Ok & quot; software start the digitisation of the logical drive. And you can see & 39; tree in the development on the left side of the window when the digitization is complete, it is recommended that d & 39; use & 39; Option & amp, quot; hide empty folders & quot;, just the folders, files deleted. Once the scan is complete, you will see the tree.This is the last, but the most important procedure for the restoration of lost data. Once your files, which must be restored, you must transfer to another medium. You can use the data to another drive of the same logical disk or & 39 d ravailler another hard drive or network drive. You can transmit data - a) Another disk on the same machine b) A logical drive assigned over the network, write cc s. c) A USB stick with the system d) A Zip drive, with the system br & gt; all properties, storage, where your system & 39, operates the data can be used to the data retrieved. Restore all files on the drive using & 39; option & quot; Here all & quot; to all (including deleted, lost files and numbered and olders) the files and folders l & amp; 39, with the car unreachable. Select & quot; Here & 39, all & quot; option & quot; files & quot; menu. You can also click & quot; Here all & quot; icon on the toolbar d & 39; tools to complete the process to start. A dialog box, a list of the drives and folders. Choose a destination, you& 39;re ready to move data. Then click OK to start. Here Selected Files Use this option to selectively a file or folder with the recovery. Select the desired files and / or a folder by clicking on the box next to appear d & 39; them. If the files / folder selection to choose & quot; Here Selected files in & quot; " file menu ". You can also click on the selected files & 39; Here icon on the toolbar d & 39; tools for the beginning of this process. A dialog box to allow you to select the target path. Select the target folder, you& 39;re ready to restore data. Click OK to start. If this process is completed, you can see all your deleted files and folders. There are many cases of data loss in my next article, I would describe the process of restoring data on the hard drive formatted.



Bookmark it:

CCNA Certifications

A CCNA (Cisco Certified Network Associate) and d & 39; apprentice, or foundation level certification is a subset of the career of Cisco Certifications - IT professional certifications for products from Cisco Systems, Inc. All three levels Cisco Certifications career associates, administrators, and & 39; experts. CCNA certification is one of the two parties level associated certifications (l & 39; other being Cisco Certified Design Associate) and is most commonly Cisco certification. The CCNA certification indicates a foundation in starting and knowledge of networking. CCNA certified professionals to install, configure and operate & 39; LAN, WAN and service line d & 39; access for small networks (100 knots or less), including but not exclusive to l & 39 Use of these protocols: IP, IGRP, Serial, Frame Relay, IP RIP, VLANs, RIP, Ethernet, and & 39; access Lists.Although it & 39; are no prerequisites for certification CCNA, a candidate must be familiar with Cisco-specific (or not) d & 39; IOS, TCP / IP, LAN and WAN management, switching and routing protocols, OSI, LAN troubleshooting, and a number of network protocols. A class d & 39; about 85% is required to pass the Cisco Certified Network Associate examination, which includes multiple choice and multiple answer questions, matching questions and simulated laboratory " " questions. L & 39; other option is a combination of & 39; introduction to Cisco Networking Technologies l & 39; review and the interconnection & 39; Cisco Networking Devices consideration. CCNA certifications are valid for three years. & 39; Order to obtain a new certification, a holder can choose & 39; one of four options: take the examination & 39; d & 39; approval, pass the examination & 39; ICND pass any 642 professional level or Cisco specialist examination (l & 39; excluding examinations Sales Specialist), or pass a written exam CCIE. This was implemented after October 1, 2004.CCNA Certifications provides detailed information on CCNA, CCNA Certification, CCNA exams, training and certification CCNA. Certifications CCNA is affiliated fiber optic training.



Bookmark it:

How to Switch Web Hosting Companies Without Downtime

How to Switch Web Hosting Companies Without Downtime
Let s face it - quite often many people tolerate less than great service from their hosting provider simply because it can be a real pain to move your site, your domain name and your email accounts without creating major downtime for you and your site visitors. Here s a general checklist to follow to ensure that you have the smoothest move possible, and hopefully with no down time.
Note: although this procedure will work fine on most all sites, there are some template generated sites that this procedure may not apply. For example, if you have a CitySearch site then you are going to need to just rebuild a new site.
Step 1: Get all of your files local. Using a basic FTP program or whatever development tool you may be using, such as FrontPage, download all current files used in your web site including graphics, html files, and anything else that may be used in your site. Most likely you already know this - but when you are copying down your files you want to keep the directory structure exactly as it is on your web server. If you built the site then most likely you already have all of this.
Step 2: Analyze your hosting needs and select a new host. Is your site just basic html or will you need a Cold Fusion host or one that supports active server pages? Depending on your site needs, select a host that can provide what you need. HostChart.com features some of the most advanced and reliable hosts out there, so finding a good one should not be hard. Most hosts these days allow you to either handle the domain name change yourself, or they can handle it for you. Just so your domain name does not get switched faster than you can get your new files posted, you may want to handle the domain name change yourself. Be sure they know to still add a record the their DNS, but that you will handling the NIC record change.
Step 3: Get everything loaded to your new server. Before making the domain name change, go ahead and load up all of your site files to your new host using just the IP address. If your new account does not have a dedicated IP address, then request that they create a subdomain for temporary use from their domain - something like newcustomer.hostingcompany.com for you to work with before transferring your name. Most should gladly do this for you. Although they won t really work yet, go ahead and set up all of the email accounts that are used on your domain as well. Be sure to create a "catchall" or "wild-card" address just in case you forgot to someone - at least their email will not bounce.
Step 4: Initiate the domain name record change. Either through Network Solutions or whatever registrar you used to register your domain, initiate the name change. Technically speaking the only thing that really need to be changed in your record is the name server information. If you host has not already provided you with this information, just email their support and ask what their Name Server information is. It is also a good idea to update the technical contact on your domain name record to your new host, although that is not required.
Step 5: Monitor for the domain name change. Depending on who you used to register your domain through, you should get one or more emails confirming the domain name change. Once the change has been initiated it will typically take 24 - 48 hours for the entire world to see the change. This period is called propagation and is simply the time it takes for all the DNS servers around the globe to "catch up" and take note of your domains new location. Once propagation has completed its course you are free to safely cancel service with your previous host.
A note about the Propagation period: As mentioned before, it takes about 24 - 48 hours for the domain name change to propagate through everyone s DNS server. This means that during this time some people will get the new site, and some will still get the old site. As far as web surfing, that s really no big deal but can be tricky in regards to email. Depending on where an email is from, it may go to your new email server or your old server. To safeguard against losing messages, try creating 2 accounts for your email address, and use each mail server s IP address instead of the domain name in your POP settings. For example, if you are using mail.yourdomain.com as your pop settings, try replacing that with the IP address of your web site or email server. Creating an account that checks both mail servers insures you don t miss any messages during this 24 - 48 hour period. About HostChart.com HostChart, a Web Hosting Resource, is a leading web hosting directory website that has been in business for over 5 years. They provide numerous web hosting articles and tutorials as well as news, interviews, and reviews. You can use their extensive set of tools to research and evaluate your current or future web hosts.



Bookmark it: