Internet Adresi Nedir?
 

İnternet Adresi Nedir?

İnternet'e bağlı her bilgisayarın kendine özgü bir adresi vardır. Domain Name System olarak adlandırılan hiyerarşik bir isimlendirme sistemiyle (İnternet adresi), internete bağlı bilgisayarlara ve bilgisayar sistemlerine isimler verilir. DNS de, bir TCP/IP servis protokolüdür. DNS, 'host' olarak adlandırılan internete bağlı tüm birimlerin yerel olarak bir ağaç yapısı içinde gruplandırılmasını sağlar. Bu şekilde, bütün adreslerin her yerde tanımlı olmasına gerek kalmaz. Örnek olarak, itu.edu.tr altında, ehb.itu.edu.tr, onun altında da, titan.ehb.itu.edu.tr vb seklinde dallanmış bir çok adres olabilir.

Her bir internet adresine 4 haneli bir numara karşılık gelir. A.b.c.d seklindeki bu numaralara IP (İnternet Protocol) numaraları denir. Burada, a, b, c ve d 0-255 arasında değişen bir tam sayıdır. (32 bit adresleme sistemi). Örnek olarak titan.ehb.itu.edu.tr için bu numara 160.75.27.250 'dir.

Her internet adresinin ilk kısmı bulunduğu domain'in network adresini, son kısmıysa makinenin numarasını verecek şekilde ikiye bölünür. Bir bilgisayar ağında bulunan makinelerin miktarına göre makine numarası için ayrılan kısmın daha büyük ya da daha küçük olması gerekebilir. Değişik ihtiyaçlara cevap verebilmesi açısından IP adresleri aşağıdaki şekilde gruplanmıştır.

Class A network adresleri 1.0.0.0 adresinden 127.0.0.0 a kadar olan aralığı kaplarlar. Her networkte kabaca 1.6 Milyon makine bulunabilir
Class B network adresleri 128.0.0.0 adresinden 191.255.0.0 adresine kadar olan aralıktadır: 16.065 network adresi ve her networkte kabaca 65.500 makine bulunabilir
Class C network adresleri 192.0.0.0 adresinden 223.255.255.0 adresine kadar olan aralıktadır. Her biri 254 makineden oluşan yaklaşık 2.000.000 network adresi barındırır.
Class D 224 ve 254 arasında kalan adresler herhangi bir network tanımlamazlar, ileri kullanımlar için rezerve edilmişlerdir.

Bu domain adreslerinin dağıtımı NIC (Network Information Center) tarafından yapılır, daha sonra her domain sahip olduğu adresi kendi ihtiyaçlarına göre parçalayarak dağıtabilir. (Son zamanlarda, sınırlı sayıdaki internet adres uzayının bitebileceği düşüncesi ile, yeni bir adresleme stratejisine doğru da gidilmektedir. önümüzdeki yıllarda, yeni tip IP adreslerinin (128 bit) ortaya çıkacağını bekleyebiliriz.)

Bu IP numaralarına (domain adreslerine) karşılık düşen bir makine ismi de bulunur. Bu sayede makinelerin isimleri daha kolay akılda kalır. Her domain'de o domaine ait IP numaralarıyla bu isimler arasında geçişi sağlayan bir servis (Domain Name Service) bulunur. Bu servis aynı zamanda diğer domain'lere ait isimleri ilgili DNS'lere sorarak öğrenir.

Örneğimize geri dönecek olursak. İstanbul Teknik Üniversitesi bir Class B network numarasına sahiptir. (160.75.0.0).itu.edu.tr domaininde bulunan tüm IP numaraları 160.75. ile başlar. Bilgi İşlem Merkezi bu numarayı yerel ağlara dağıtmıştır. Elektronik-Haberleşme Bölümü domain'i ne (160.75.27.0) numarası verilmiştir. Burası da ehb.itu.edu.tr olarak tanımlanmıştır. Bu network içerisinde yer alan makinelerin hepsi 160.75.27. numarasıyla başlar, söz gelimi bu network'de yer alan titan ismi verilen makinenin IP numarası 160.75.27.250 --> titan.ehb.itu.edu.tr şeklindedir.

Dikkat edilirse bir host numarası 1 den 254 e kadar 254 farklı değer alabilir. Çünkü 0 ve 255 bu numaralandırmada özel anlamlar içerirler. 0, network'u tanımlarken 255'te o network'teki tüm hostları tanımlar.

127.0.0.1 adresi ve 127.0.0.0 Network'u test ve geliştirme için kullanılır. 127.0.0.1 adresi her makinenin kendisini tanımlar buraya gönderilen her şey, sanki bir başka network'ten geliyormuş gibi makinenize geri dönecektir. Bu sayede herhangi bir network bağlantısı olmadan kimi denemeler yapılarak network yazılımları geliştirilebilir.

DNS, ayrıca, İnternet adresini nümerik adrese çevirir. Domain'ler hiyerarşik DNS adresleme sistemi içindeki farklı yapıları temsil ederler. Her domain kendi içinde bağımsız bir topluluktur. Doğal olarak, herkes kafasına göre gelişi güzel internet domain ismi ve IP numarası alamaz. Network Information Center'e bunun için başvurmak gerekir. Aksi taktirde karmaşayı siz düşünün!!!





Bu sayfa hakkındaki yorumlar:
Yorumu gönderen: Eric Jones, 08.09.2021, 22:09 (UTC):
Hello, my name_s Eric and I just ran across your website at tr.gg...

I found it after a quick search, so your SEO_s working out_

Content looks pretty good_

One thing_s missing though_

A QUICK, EASY way to connect with you NOW.

Because studies show that a web lead like me will only hang out a few seconds _ 7 out of 10 disappear almost instantly, Surf Surf Surf_ then gone forever.

I have the solution:

Talk With Web Visitor is a software widget that_s works on your site, ready to capture any visitor_s Name, Email address and Phone Number. You_ll know immediately they_re interested and you can call them directly to TALK with them - literally while they_re still on the web looking at your site.

CLICK HERE https://talkwithwebvisitors.com to try out a Live Demo with Talk With Web Visitor now to see exactly how it works and even give it a try_ it could be huge for your business.

Plus, now that you_ve got that phone number, with our new SMS Text With Lead feature, you can automatically start a text (SMS) conversation pronto_ which is so powerful, because connecting with someone within the first 5 minutes is 100 times more effective than waiting 30 minutes or more later.

The new text messaging feature lets you follow up regularly with new offers, content links, even just follow up notes to build a relationship.

Everything I_ve just described is extremely simple to implement, cost-effective, and profitable.

CLICK HERE https://talkwithwebvisitors.com to discover what Talk With Web Visitor can do for your business, potentially converting up to 100X more eyeballs into leads today!

Eric
PS: Talk With Web Visitor offers a FREE 14 days trial _ and it even includes International Long Distance Calling.
You have customers waiting to talk with you right now_ don_t keep them waiting.
CLICK HERE https://talkwithwebvisitors.com to try Talk With Web Visitor now.

If you'd like to unsubscribe click here http://talkwithwebvisitors.com/unsubscribe.aspx?d=tr.gg

Yorumu gönderen: Eric Jones, 29.06.2021, 06:05 (UTC):
Hi, Eric here with a quick thought about your website tr.gg...

I_m on the internet a lot and I look at a lot of business websites.

Like yours, many of them have great content.

But all too often, they come up short when it comes to engaging and connecting with anyone who visits.

I get it _ it_s hard. Studies show 7 out of 10 people who land on a site, abandon it in moments without leaving even a trace. You got the eyeball, but nothing else.

Here_s a solution for you_

Talk With Web Visitor is a software widget that_s works on your site, ready to capture any visitor_s Name, Email address and Phone Number. You_ll know immediately they_re interested and you can call them directly to talk with them literally while they_re still on the web looking at your site.

CLICK HERE https://talkwithwebvisitors.com to try out a Live Demo with Talk With Web Visitor now to see exactly how it works.

It could be huge for your business _ and because you_ve got that phone number, with our new SMS Text With Lead feature, you can automatically start a text (SMS) conversation _ immediately_ and contacting someone in that 5 minute window is 100 times more powerful than reaching out 30 minutes or more later.

Plus, with text messaging you can follow up later with new offers, content links, even just follow up notes to keep the conversation going.

Everything I_ve just described is extremely simple to implement, cost-effective, and profitable.

CLICK HERE https://talkwithwebvisitors.com to discover what Talk With Web Visitor can do for your business.

You could be converting up to 100X more eyeballs into leads today!

Eric
PS: Talk With Web Visitor offers a FREE 14 days trial _ and it even includes International Long Distance Calling.
You have customers waiting to talk with you right now_ don_t keep them waiting.
CLICK HERE https://talkwithwebvisitors.com to try Talk With Web Visitor now.

If you'd like to unsubscribe click here http://talkwithwebvisitors.com/unsubscribe.aspx?d=tr.gg

Yorumu gönderen: Eric Jones, 27.06.2021, 21:49 (UTC):
Hey, this is Eric and I ran across tr.gg a few minutes ago.

Looks great_ but now what?

By that I mean, when someone like me finds your website _ either through Search or just bouncing around _ what happens next? Do you get a lot of leads from your site, or at least enough to make you happy?

Honestly, most business websites fall a bit short when it comes to generating paying customers. Studies show that 70% of a site_s visitors disappear and are gone forever after just a moment.

Here_s an idea_

How about making it really EASY for every visitor who shows up to get a personal phone call you as soon as they hit your site_

You can _

Talk With Web Visitor is a software widget that_s works on your site, ready to capture any visitor_s Name, Email address and Phone Number. It signals you the moment they let you know they_re interested _ so that you can talk to that lead while they_re literally looking over your site.

CLICK HERE https://talkwithwebvisitors.com to try out a Live Demo with Talk With Web Visitor now to see exactly how it works.

You_ll be amazed - the difference between contacting someone within 5 minutes versus a half-hour or more later could increase your results 100-fold.

It gets even better_ once you_ve captured their phone number, with our new SMS Text With Lead feature, you can automatically start a text (SMS) conversation.

That way, even if you don_t close a deal right away, you can follow up with text messages for new offers, content links, even just _how you doing?_ notes to build a relationship.

Pretty sweet _ AND effective.

CLICK HERE https://talkwithwebvisitors.com to discover what Talk With Web Visitor can do for your business.

You could be converting up to 100X more leads today!

Eric
PS: Talk With Web Visitor offers a FREE 14 days trial _ and it even includes International Long Distance Calling.
You have customers waiting to talk with you right now_ don_t keep them waiting.
CLICK HERE https://talkwithwebvisitors.com to try Talk With Web Visitor now.

If you'd like to unsubscribe click here http://talkwithwebvisitors.com/unsubscribe.aspx?d=tr.gg

Yorumu gönderen: Eric Jones, 14.06.2021, 04:46 (UTC):
Good day,

My name is Eric and unlike a lot of emails you might get, I wanted to instead provide you with a word of encouragement _ Congratulations

What for?

Part of my job is to check out websites and the work you_ve done with tr.gg definitely stands out.

It_s clear you took building a website seriously and made a real investment of time and resources into making it top quality.

There is, however, a catch_ more accurately, a question_

So when someone like me happens to find your site _ maybe at the top of the search results (nice job BTW) or just through a random link, how do you know?

More importantly, how do you make a connection with that person?

Studies show that 7 out of 10 visitors don_t stick around _ they_re there one second and then gone with the wind.

Here_s a way to create INSTANT engagement that you may not have known about_

Talk With Web Visitor is a software widget that_s works on your site, ready to capture any visitor_s Name, Email address and Phone Number. It lets you know INSTANTLY that they_re interested _ so that you can talk to that lead while they_re literally checking out tr.gg.

CLICK HERE http://talkwithcustomer.com to try out a Live Demo with Talk With Web Visitor now to see exactly how it works.

It could be a game-changer for your business _ and it gets even better_ once you_ve captured their phone number, with our new SMS Text With Lead feature, you can automatically start a text (SMS) conversation _ immediately (and there_s literally a 100X difference between contacting someone within 5 minutes versus 30 minutes.)

Plus then, even if you don_t close a deal right away, you can connect later on with text messages for new offers, content links, even just follow up notes to build a relationship.

Everything I_ve just described is simple, easy, and effective.

CLICK HERE http://talkwithcustomer.com to discover what Talk With Web Visitor can do for your business.

You could be converting up to 100X more leads today!

Eric
PS: Talk With Web Visitor offers a FREE 14 days trial _ and it even includes International Long Distance Calling.
You have customers waiting to talk with you right now_ don_t keep them waiting.
CLICK HERE http://talkwithcustomer.com to try Talk With Web Visitor now.

If you'd like to unsubscribe click here http://talkwithcustomer.com/unsubscribe.aspx?d=tr.gg

Yorumu gönderen: Eric Jones, 24.05.2021, 10:30 (UTC):
Hey, this is Eric and I ran across tr.gg a few minutes ago.

Looks great_ but now what?

By that I mean, when someone like me finds your website _ either through Search or just bouncing around _ what happens next? Do you get a lot of leads from your site, or at least enough to make you happy?

Honestly, most business websites fall a bit short when it comes to generating paying customers. Studies show that 70% of a site_s visitors disappear and are gone forever after just a moment.

Here_s an idea_

How about making it really EASY for every visitor who shows up to get a personal phone call you as soon as they hit your site_

You can _

Talk With Web Visitor is a software widget that_s works on your site, ready to capture any visitor_s Name, Email address and Phone Number. It signals you the moment they let you know they_re interested _ so that you can talk to that lead while they_re literally looking over your site.

CLICK HERE https://talkwithwebvisitors.com to try out a Live Demo with Talk With Web Visitor now to see exactly how it works.

You_ll be amazed - the difference between contacting someone within 5 minutes versus a half-hour or more later could increase your results 100-fold.

It gets even better_ once you_ve captured their phone number, with our new SMS Text With Lead feature, you can automatically start a text (SMS) conversation.

That way, even if you don_t close a deal right away, you can follow up with text messages for new offers, content links, even just _how you doing?_ notes to build a relationship.

Pretty sweet _ AND effective.

CLICK HERE https://talkwithwebvisitors.com to discover what Talk With Web Visitor can do for your business.

You could be converting up to 100X more leads today!

Eric
PS: Talk With Web Visitor offers a FREE 14 days trial _ and it even includes International Long Distance Calling.
You have customers waiting to talk with you right now_ don_t keep them waiting.
CLICK HERE https://talkwithwebvisitors.com to try Talk With Web Visitor now.

If you'd like to unsubscribe click here http://talkwithwebvisitors.com/unsubscribe.aspx?d=tr.gg



Bu sayfa hakkında yorum ekle:
İsmin:
Mesajınız:
 
 
📊 13 Ağustos 2007 itibariyle, toplam: 45846 ziyaretçi (79474 klik) tarafından görüntülenmiştir.

gizli, gizli ilim, ilim, gizli ilimler

 
 
Bu web sitesi ücretsiz olarak Bedava-Sitem.com ile oluşturulmuştur. Siz de kendi web sitenizi kurmak ister misiniz?
Ücretsiz kaydol