IPv6 (Cisco) Training - Using the "DNS server and a domain name (IPv6)" Commands

Well, since this article is a kind of long I'm going straight down to it, so without further ado let us begin.

The "DNS - server" (IPv6) command, a Cisco IOS "DHCP for IPv6 pool configuration mode command is used to specify the network Domain Name System (DNS) server IPv6 (s) available on one.

Here is the correct syntax and example of the "DNS - server" (IPv6) command:

Syntax: router (config-dhcp) #> DNS - Server IPv6 address
Example: Router (config-dhcp) # dns - server 2001:0 DC8: 3000:3000:: 42

Note that the router prompt "DHCP for IPv6 pool configuration" mode argument is the IPv6 address and IPv6 address of the DNS server available.

Now, in case you're wondering if you can use (configure) the "DNS - server" (IPv6) command several times on a router, if you have multiple DNSnetwork servers. And the new IPv6 addresses delete (overwrite) the current (old) IPv6 addresses.

Also, if you search for a specific DNS server for the list of DNS servers, all you have to do is type the word "no" in front of the command as you can see below:

-Address-dhcp) # no DNS - server config ipv6 Syntax: router (
Example: Router (config-dhcp) # no DNS - server2001:0 DC8: 3000:3000:: 42

Ok, that basically sums up the "DNS - server" (IPv6) command, so, go to "domain name" (IPv6) command.

The "domain name" (IPv6) is also a command from Cisco IOS "DHCP for IPv6 pool configuration" mode command, but is used to configure a domain name for a DHCP client for IPv6, also known as a router or an applicant RR.

Here is the correct syntax and example of the "domain name" (IPv6)command:

Syntax: router (config-dhcp) # domain domain
Example: Router (config-dhcp) # domain ittechtips.com

Announcement that the router prompt is still "DHCP for IPv6 pool configuration" mode and domain of the argument concerning the domain name is used by the client. So in the example above, the router (client) uses the domain name ittechtips.com.

And, like the "DNS - server" (IPv6) command, the "domain name" (IPv6)command can be used (configured) multiple times on a router. And, new domain names do not delete (overwrite) the existing domain names.

Finally, if you delete a domain name to a DHCPv6 client (RR) should see the word "no" to the "domain name" (IPv6) command as shown below:

Syntax: router (config-dhcp) # no domain domain
Example: Router (config-dhcp) # no domain ittechtips.com

I hope this article is very informativeand helped you quickly understand the use of "DNS - server and the domain name" (IPv6) commands. If you need to learn, I suggest you go to my website, where the latest information on Cisco IPv6 design and deployment techniques available.

To your success,

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Understand the Domain Name System

Ever wonder why DNS systems came? Efficiency. Each computer has its own IP address, and the Internet needed an elite method for obtaining these addresses and for managing the system as a whole. Enter ICANN.

The Internet Corporation for Assigned Names and Number manages the DNS root of the area of Internet domain names. ICANN is the role of assigning identifiers to manage, to ensure that all users have unique names.

The DNS system is runby a series of servers called DNS servers. ICANN manages the DNS root domains, including top-level domains.
It also manages:

Organizational domains
Geographic areas
Reverse domain

Among the top-level domains are other naming authorities such as Nominet, the Naming Authority of the United Kingdom.

How does a DNS Query work?

The process takes place in two parts. First, a name query begins at a client computer and is passed to DNS Client service for resolution. If the query can not be resolved locally, DNS servers queried.

For example, when a web browser calls the fully qualified domain http://www.discountdomainsuk.com, the request is passed to the DNS Client service is the name of solving using a cache data locally. If the query is held in the cache, then the process is complete.

However, if the query can not be resolved locally, the DNS client service uses a list server> (ordered in sequence) to query external DNS server. When a DNS server receives a query, first check if that domain name. If it is authoritative, it resolves the name and the process is complete.

If the DNS server is unable to resolve a query, in turn, ask other DNS servers, using a process known as recursion. DNS Server use root hints to assist in locating> Server DNS, which are able to provide the required result. In this way, applications are minimized and the Internet DNS is able to operate effectively and quickly.

A typical query may run as follows:

Client contacts Nameserver A looking http://www.discountdomainsuk.com.

A name server checks the cache, but can not answer, so ask an authoritative server for the web root.

The root server responds with a reference to a server authoritative for the. com domains. Queries the name server. COM server and gets referred to the authoritative server for http://www.discountdomainsuk.com.

A request for a name server and the server receives the IP address for http://www.discountdomainsuk.com.

A name server responds to the client with the IP address.

Queries can return answers that are authoritative, positive, negative or referral in nature. In the case of negative answer, another DNS> Server is required.

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Optimize Vista 1 - speed Internet performance dramatically

Many Vista users have experienced difficulties with slow Internet, and the cause is probably unsupported hardware or ISP itself. To counter this problem, you must optimize your Windows Vista for better compatibility and speed. I'll show you 6 ways to restore the connection:

Method # 1 - Turn off TCP Auto Tuning.

Vista is smart enough to automatically adjust the TCP maximum constant speed, but has also introduced advancedmuch overhead for some hardware is not supported for some time you must manually configure the TCP settings with SG TCP Optimzer off Vista TCP Auto Tuning.

Method # 2 - Installing Web Accelerator.

You can try Google Web Accelearator or other commercial Web accelerators, like Nitro or ONSPEED. Web Accelerator is actually a proxy server web site with compression. It will be a tunneling connection between your computer and the Web server, and compress each item send to you, it improves the speed of navigation.

Method # 3 - Use static IP.

This method does not improve the speed, but accelerates the time required for computers to connect to the router.

Method # 4 - Use OpenDSN.

Your ISP DNS server can not respond fast enough, try OpenDNS to improve the response of your website on the Internet.

Method # 5 - Increase the DNS cache.

You have the knowledgeDNS> to register before you can use the cache. What it does is cache every search you make the DNS server, so the next time you visit the website again, the answer will be immediate. Therefore, your website cache faster, if you give them again.

Method # 6 - Disable IPv6 and other protocol.

You must disable all protocols used, do not get the additional costs slow down your Windows.

For more information on tuning the details to learn, thenDownload a copy of "Unleash Vista Power Express Guide and enroll for a three-day mini-course.

(C) Copyright 2008 Cook Choon - Feel free to reprint this article in its entirety as long as all links and author resources box in place.

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Earn money with domain names without any experience!

People get a lot of knowledge online. For a very competitive person interested in Internet-linked cash, it is essential that an opinion given to start with a simple step how to get together to make money with domain names.

For an appetizer of online business to make money with domain names will not be too much of workers and moiling. It 's just a simple exercise that too much capital to start.

You may not take much exposuretechnology to make money with domain names. You may not need to have gone beyond high school. You may just need a computer with internet connection as the first step. How convenient!

With domain names, that's all you want, and your success depends largely on the strategies to use to get people to buy your domain names. If you do not know what strategies to adopt, it is imperative that you take the time to read books on strategies to use to make money sellingdomains.

However, the most important thing is to want to make sure you spend time on each other's business. If you as a serious hobby, probably to go the extra mile to see it as a viable business that will pay the bills.

The immediate step to take right now is to read success stories and reasons behind them. It will be very interesting to see how it will develop the game to make money to enjoy.

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To promote the conservation of the fire with your domain name

Establish your brand on the Internet can be a difficult task to control. With so much competition around, companies are finding it increasingly difficult to cut a niche for himself and to impress targeted users online. positioning in search engines are still ahead, but maintains the brand value of your company plays a growing role in influencing the revenues.

So when it comes to choosing your domain name for your online business, you need to focus onbrand value door. Often webmasters cluttering their domain name with keywords, so that it is a general impression that there is absolutely no relevance to your brand.

It 's always good to have a name that people can relate to the use and maintenance. Only then will you be able to bring in return visitors and increase your chances of converting them.

However, if the brand is not very popular, it is difficult to find people. ToFor example, 'rockshoes.com "the site of a shoe company called' Rock ', but the number of online users know? In such cases, the companies have a huge budget of e-marketing to promote this domain name and get traffic to the site to spend. It is therefore not the best strategy for an SME, which is just entering the world of online business.

However, there is a middle ground that you can choose. Using a combination of branding, keywords and generic termsrank for your domain name to the ability of the domain name to improve. Take one of the keywords you choose, and add a generic word in the end. Names like the city of flight, etc. BookHub, SEO value built into them, because the domain name you require users to use keywords in the link. Search engines get the keyword you are looking for a single label and get the users that you can keep for a long time.

When you decide to buy a domain, make sure to choose areliable registration of the domain name of the company offering the best options in terms of effective prices. There are a number of companies in the market that offer domain names and cheap domain extensions. Aussie Web Hosting, the leading provider of domain registration Australia is a leading online services offer domain names at competitive prices.

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ISC DHCP Server Configuration

The dhcpd server is a server that allows clients to connect to the DHCP server and requests the IP address and gateway / dns. DHCP is used in most of the major networks as a means of easy to manage IP addresses. Linux is just a server, dhcpd called creative. Dhcpd is available on the website on the Internet Software Consortum isc.org. The server must be available from your distribution, however, so check withdistribution.
ISC provides only the standard package tarball, so if your distribution does not provide the dhcpd package, it will go to the SAI kit. Download the file and extract it using the following commands:

gunzip dhcpd version.tar.gz
tar-xvf dhcpd Version.tar

Be sure to replace the current version to version. Now run the following commands:

CD dhcpd version
. / Configure
to
make install

DHCPD installwithout problems, if not, please contact the mailing list on the ISC website. There are only three tasks with dhcpd, the first is to edit the configuration file. Put the following in / etc / dhcpd.conf:

# / Etc / dhcpd.conf from Christopher Peace
ddns-update-style ad-hoc;
default-lease-time 259200;
max-lease-time 300000
option subnet-mask 255.255.255.0;
option routers 192.168.0.1;
option domain-name-servers 192.168.0.1;
subnet192.168.0.0 netmask 255.255.255.0
{Range 192.168.0.20 192.168.0.40;
range 192.168.0.50 192.168.0.90;}

Of course you want to replace the router, domain server, netmask, and range of what your network. So, I have a network that I use DHCP for a total of 60 IP addresses assigned. This range is from 0.20 -. 40, 0.50 and -. 90. DHCPD only IP addresses within this range, as I like to keep 0.1 -. 19, -. 49 .41, and .91 -. Free for servers and as 254.The "default-lease-time 'and' max-lease-time" settings are used to indicate how long the DHCP lease will last if the customer does not require additional time (default), and when asked the most .. time (max) This time is in seconds if you have a static IP assigned to a host, use the following syntax in the file / etc / dhcpd.conf.:

Host Joe {hardware ethernet
00: C0: F0: 25: b7: 15;
fixed-address 192.168.0.205;}

This will be the IP address of 192.168.0.205 to any Joetime to request an IP. The MAC address is the address of Ethernet hardware.

Now we enter the next step, create the directory / var / state / dhcp / dhcpd.leases:

touch / var / state / dhcp / dhcpd.leases

DHCPD can now start to try it. First, if you currently have another DHCP server on the network, turn on that. Then do the following:

/ Usr / sbin / dhcpd

Finally, the launch of a DHCP client (if using Windows 98/2000/XP/NT, pleaseThe ipconfig command to release the IP and then renew typing:

ipconfig / release_all
ipconfig / renew_all

This should take a little ', since the DHCP client is looking for the source server. After a little' time out, and then query the network for DHCP servers, finding our Linux. Now, once you are sure DHCPD works, we need an init script for the creation of DHCPD. This is used to start, stop and restart the dhcpd. This script initrun automatically at startup to start dhcpd. Put the following in / etc / init.d / dhcpd:

#! / Bin / sh
# / Etc / init.d / dhcpd Christopher Pace
In "$ 1"
start)
echo-n "Starting dhcpd: dhcpd"
start-stop-daemon - start - quiet - exec / usr / sbin / dhcpd
echo "."
,,
stop)
echo-n "Stopping dhcpd: dhcpd"
killall -9 dhcpd
echo "."
,,
restart)
echo-n "Starting dhcpd: dhcpd"
killall-HUP dhcpd
echo"."
,,
*)
echo "Usage: / etc / init.d / dhcpd {start | stop | start | reload | force-reload}"> & 2
exit 1
,,
ESAC
exit 0
You should now:
chmod 700 / etc / init.d / dhcpd
ntsysv

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Configure the FTP server using FileZilla on Windows 7

FTP stands for File Transfer Protocol, if you want to know more, you can check on Wikipedia. FTP is actually less popular nowadays, as many users of other protocols for exchanging files, especially P2P BT. FTP, still play an important role.

Let's say that you have a file that is 300 MB and you want to send to your friend overseas immediately. What would you do? Usually email attachment limit (usually not so highas 300 MB) and will be extremely slow and unstable when you try to transfer via instant messaging software like MSN. The best bet is to configure the FTP server at home and allow your friend to download from your computer. The mind, then you have an account to view files and take them anywhere.

If all the remote desktop setting up your home, you probably leave your computer on 24 * 7 just so that you can not accesswhenever you want. Or if you have a spare computer as I do, why do not you try to use the people? I'll show you how your computer to an FTP server.

After trying some of the FTP server software, freeware FileZilla Server has been my choice.

Ok, let's start.

The first thing to do is install the package just downloaded (the link above), installation is fairly simple and I do notto arrive at retail.

After installation, FileZilla server starts and you should be able to see the following interface:

Before you go ahead and set the ports, we want a user to ensure that the works to add. We are going to choose "Edit -> User" (. If there is a link, just below the "Edit" in the menu bar)

I have a user called "anonymous", and make sure the "Password" box is checked, because I'd be likemy account public FTP visitors can download from my FTP server. If you want other accounts, make sure the "Password" is selected on the basis of secure access to enforce. For many users, you can use another location, or you can just create a group and assign the path to all members of that group.

On the left you will see the "Shared Folders" the folder you want to "anonymous" as well as the rights that would seemfeasible. When finished, click OK.

Note: The shared folder is the root directory that you selected (in this case, is "anonymous") could be seen, but all the folders that the folders are visible to the user.

The thing that Windows users, you probably missed when setting up FileZilla is the firewall. About the installation, even if you have the means to allow computers to access your FTP Server, there is something wrongis correct.

Locate your firewall settings, you can find FileZilla Server Interface can be allowed in the list, but this is the problem. We need to FileZilla Server Core instead of the interface. The interface is just the user interface for end users like you and me for access to the basic program. Then click Add to select "FileZilla Server" from the installation folder:

Now OK.

If you have two or more computers at home,you can buy a test. First check your internal IP address. If you do not know how to do it, check out my previous post, set the remote desktop. For example, I discovered that the internal IP of 192.168.1.111 is my server, then on another computer, I type in just ftp://192.168.1.111.

Note: If a port other than 21, say that the port 22, type ftp://192.168.1.111:22 if you do not know which port is, in fact, is underinstitution -> General Settings: If it works for you, we will go, other than those new to read instructions or ask me.

FTP server is intended to cover in a network, if you just try to set it up at home, then you are done, but according to the situations introduced in my first paragraph, I would like to see the world.

How a Remote Desktop, we will establish port forwarding. In my case, because my FileZilla Server on port 21 on my computer, Ineed a way to send the FTP application on this port. Ideally it would be nice if you can configure the port 21 and outer door, because every time you type in the address bar, we do not need to type the port number (default port of FTP browser is 21). However, most ISPs (Internet Service Provider), for example, I use Telus blocking port 21. We need a different port as our outer door to find:

I suggest port 5050 as my remote port and all FTP requests through this port willNext to port 21 on my server. I am using D-Link DIR-825, if your router, refer to the instruction manual.

If dynamic DNS, then you have done, if not, go back and read my post, it is very simple.

Let's say you have your dynamic DNS name as myServerAtHome.no-ip.org, then when you're out, you can simply type ftp://myServerAtHome.no-ip.org:5050, but when you get home, you may onlyftp://192.168.1.111.

You can set your browser to visit your FTP server, though, I recommend using FTP software. FileZilla Server is a great FTP server and client software they have. You can check the website FileZilla if you do not have one, why not try FileZilla Client?

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