Çevrimiçi Aktivitelerde Güvenlik Yöntemleri (5)

WEBVTT 00:00:01.587 --> 00:00:07.815 Zuletzt werden wir über die Verwendung von Virtual Private Network, also VPN, sprechen. 00:00:08.296 --> 00:00:09.037 Was ist VPN? 00:00:09.097 --> 00:00:10.278 Grundlegendes VPN-Diagramm. 00:00:10.318 --> 00:00:11.840 VPN ist ein digitaler Tunnel. 00:00:13.342 --> 00:00:14.684 Lassen Sie mich Ihnen ein Beispiel geben. 00:00:14.964 --> 00:00:18.349 Wir fahren auf einer vierspurigen Autobahn auf der offenen Straße. 00:00:19.972 --> 00:00:30.214 Es ist völlig normal, dass ein Auto von den benachbarten Spuren unsere Fahrtroute beeinflusst oder uns in Gefahr bringt. 00:00:30.295 --> 00:00:34.195 Aber stellen Sie sich vor, diese Spur wird zu einem Tunnel, der nur für uns bestimmt ist. 00:00:34.616 --> 00:00:40.397 Dann kann kein Auto in unsere Spur eindringen, da um den Tunnel herum eine Wand steht, oder? 00:00:40.877 --> 00:00:42.739 Die Kontrolle liegt vollständig bei uns. 00:00:43.200 --> 00:00:46.042 Ähnlich ist es im Internet wie auf einer Autobahn. 00:00:46.083 --> 00:00:48.765 Es gibt viele Spuren, auf denen Sie fahren können. 00:00:49.146 --> 00:00:55.272 VPN öffnet eine dieser Spuren speziell und sicher für uns. 00:00:56.391 --> 00:01:00.554 Am einen Ende des Tunnels befindet sich ein Server, am anderen Ende ein Client. 00:01:00.654 --> 00:01:02.615 Also das fahrende Fahrzeug und das Ziel. 00:01:03.135 --> 00:01:08.199 Und über diesen verschlüsselten Datenverkehr stellen wir eine sichere Verbindung über das VPN-Tunnel her. 00:01:08.639 --> 00:01:13.622 VPN wird nicht automatisch auf Ihrem Computer installiert, Sie müssen VPN-Programme installieren. 00:01:14.523 --> 00:01:21.527 Wir bieten detaillierte Informationen zu diesem Thema in unserem digitalen Sicherheitsmodul und in unseren Einheiten. 00:01:23.632 --> 00:01:24.953 Wofür ist ein VPN gut? 00:01:24.994 --> 00:01:27.075 Lassen Sie uns das etwas genauer technisch betrachten. 00:01:27.217 --> 00:01:31.342 Wir haben gesagt, dass ein Virtuelles Privates Netzwerk, VPN, als Sicherheitstunnel fungiert. 00:01:31.402 --> 00:01:40.113 Auch wenn unsere Daten erfasst werden, kann die Person, die unsere Daten erfasst hat, unsere Daten nicht korrekt nutzen, da unsere Daten verschlüsselt sind 00:01:40.133 --> 00:01:40.373 werden. 00:01:41.447 --> 00:01:49.674 Ein Virtuelles Privates Netzwerk, VPN, ermöglicht es insbesondere Mitarbeitern, unterwegs oder von zu Hause aus auf das Firmennetzwerk zuzugreifen und dies sicher zu tun. 00:01:49.714 --> 00:01:54.218 Angenommen, Sie sind am Flughafen, haben einen Flug von Istanbul nach Ankara, müssen zu einem Meeting. 00:01:54.578 --> 00:01:57.921 Sie müssen eine letzte E-Mail senden, die ein Preisangebot enthält. 00:01:58.301 --> 00:02:06.948 Wenn Sie nicht möchten, dass dieses Preisangebot in die falschen Hände gerät, wird die Verwendung eines Virtuellen Privaten Netzwerks, VPN, am Flughafen definitiv einen sicheren Transfer ermöglichen. 00:02:08.767 --> 00:02:13.189 Mit Covid haben sich auch unsere Gewohnheiten im Homeoffice stark verändert. 00:02:13.669 --> 00:02:20.752 Denken Sie daran, dass das Internet, das wir zu Hause nutzen, das WLAN immer noch eine Ausrüstung und ein System ist, das Sicherheitsprobleme verursachen kann. 00:02:21.412 --> 00:02:29.835 Denn in einem Apartment gibt es mehrere WLANs und jeder Besucher im Apartment kann über diese WLAN-Systeme, 00:02:29.895 --> 00:02:38.425 Über drahtlose Netzwerke können unsere Informationen abgefangen werden, aber wenn Sie ein VPN verwenden, ist es äußerst schwierig, dies zu erreichen. 00:02:39.102 --> 00:02:43.546 Es ist immer von Vorteil, aus Sicherheitsgründen bei jeder Internet-Sitzung ein VPN zu verwenden. 00:02:44.126 --> 00:02:53.454 Unsere Internetgeschwindigkeit kann etwas langsamer werden, aber wenn wir einen Kompromiss zwischen Sicherheit und Geschwindigkeit finden müssen, bevorzuge ich Sicherheit vor Geschwindigkeit. 00:02:54.215 --> 00:02:58.718 Es gibt viele kostenpflichtige und kostenlose VPN-Dienstanbieter für den persönlichen Gebrauch. 00:02:59.059 --> 00:03:01.781 Die kostenpflichtigen Dienste sind natürlich viel besser. 00:03:01.841 --> 00:03:12.766 In unseren Kursen zum Thema digitale Sicherheit zeigen wir in unserem Programm Çevrimi Şehitim in den Einheiten ausführlich, wie Sie den für Sie passenden VPN-Dienstanbieter finden können. 00:03:13.166 --> 00:03:14.969

WEBVTT 00:00:01.587 --> 00:00:07.815 Finally, we will talk about the use of virtual private network A, in other words, VPN usage. 00:00:08.296 --> 00:00:09.037 What is VPN? 00:00:09.097 --> 00:00:10.278 Basic VPN scheme. 00:00:10.318 --> 00:00:11.840 VPN is a digital tunnel. 00:00:13.342 --> 00:00:14.684 Let me give you an example. 00:00:14.964 --> 00:00:18.349 We are driving on an open road on a four-lane highway. 00:00:19.972 --> 00:00:30.214 It is quite normal for a car coming from the adjacent lanes to affect our driving route or to face the possibility of having an accident. 00:00:30.295 --> 00:00:34.195 But imagine that lane becomes a tunnel just for us. 00:00:34.616 --> 00:00:40.397 Then, since there will be a wall around the tunnel, no car can enter our lane, right? 00:00:40.877 --> 00:00:42.739 The control is entirely in our hands. 00:00:43.200 --> 00:00:46.042 Similarly, the internet is like a highway. 00:00:46.083 --> 00:00:48.765 There are many lanes, and you can travel on these lanes. 00:00:49.146 --> 00:00:55.272 VPN opens one of these lanes exclusively and securely for us to use. 00:00:56.391 --> 00:01:00.554 So, at one end of the tunnel, there is a server, and at the other end, there is a client. 00:01:00.654 --> 00:01:02.615 The departing vehicle and the destination. 00:01:03.135 --> 00:01:08.199 And through this encrypted traffic, we provide secure access over the VPN tunnel. 00:01:08.639 --> 00:01:13.622 VPN does not come automatically on your computer, you need to install VPN programs. 00:01:14.523 --> 00:01:21.527 We provide detailed information about this in our digital security module and units. 00:01:23.632 --> 00:01:24.953 So, what does VPN do? 00:01:24.994 --> 00:01:27.075 Let's delve into this a bit more technically. 00:01:27.217 --> 00:01:31.342 We said that Virtual Private Network, VPN, acts as a security tunnel. 00:01:31.402 --> 00:01:40.113 Even if our data is compromised, the person who obtains our data cannot use it correctly without the right password and encryption because our data is encrypted. 00:01:40.133 --> 00:01:40.373 . 00:01:41.447 --> 00:01:49.674 Virtual Private Network, VPN, especially enables employees to access the company from the road or from home and ensures this is done securely. 00:01:49.714 --> 00:01:54.218 For example, you are at the airport, you have a flight from Istanbul to Ankara, and you need to send a last email with a price quote. 00:01:54.578 --> 00:01:57.921 If you do not want this price quote to fall into the wrong hands, using a Virtual Private Network, VPN, at the airport will definitely provide you with this secure passage. 00:01:58.301 --> 00:02:06.948 With Covid, our work-from-home habits have changed a lot. 00:02:13.669 --> 00:02:20.752 Let's not forget that the internet and wifi we use at home can also pose security issues. 00:02:21.412 --> 00:02:29.835 Because there are multiple wifi networks within the apartment, and any visitor who has come into the apartment can access these wifi systems, 00:02:29.895 --> 00:02:38.425 They can capture our information over wireless access networks, but if you are using a VPN, it is very difficult for them to do so. 00:02:39.102 --> 00:02:43.546 It is definitely beneficial to use VPN for security purposes in every internet session. 00:02:44.126 --> 00:02:53.454 Our internet speed may decrease a bit, but when we need to strike a balance between security and speed, I prefer security over speed. 00:02:54.215 --> 00:02:58.718 There are many paid and free VPN service providers for personal use. 00:02:59.059 --> 00:03:01.781 Of course, the paid ones have much better services. 00:03:01.841 --> 00:03:12.766 In our digital security lessons, we show in detail in the units of our program Çevrimi Şehitim how to find the VPN service provider that suits you. 00:03:13.166 --> 00:03:14.969

WEBVTT 00:00:01.587 --> 00:00:07.815 Son olarak sanal özel A kullanımından bahsedeceğiz yani VPN kullanımından bahsedeceğiz. 00:00:08.296 --> 00:00:09.037 VPN nedir? 00:00:09.097 --> 00:00:10.278 Temel VPN şeması. 00:00:10.318 --> 00:00:11.840 VPN dijital bir tüneldir. 00:00:13.342 --> 00:00:14.684 Şöyle bir örnek vereyim size. 00:00:14.964 --> 00:00:18.349 Dört şeritli bir otobanda açık yol üzerinde gidiyoruz. 00:00:19.972 --> 00:00:30.214 Yandaki şeritlerden gelecek olan bir arabanın mesela bizim sürüç rotamıza etki etmesi veya bizi bir kaza yapma ihtimaliyle yüz yüze bırakması son derece normal. 00:00:30.295 --> 00:00:34.195 Ama düşünün ki o şerit sadece bize özel bir tünel haline gelsin. 00:00:34.616 --> 00:00:40.397 O zaman tünel etrafında bir duvar olacağından dolayı bizim şeridimize hiçbir araba giremez değil mi? 00:00:40.877 --> 00:00:42.739 Kontrol tamamen bizim elimizde bulunur. 00:00:43.200 --> 00:00:46.042 Benzeri bir şekilde internette bir otoban gibidir. 00:00:46.083 --> 00:00:48.765 Bir sürü şerit var, bu şeritler üzerinden gidebilirsiniz. 00:00:49.146 --> 00:00:55.272 VPN bu şeritlerden bir tanesini bize özel olarak, güvenli olarak kullanıma açar. 00:00:56.391 --> 00:01:00.554 Yani tünelin bir ucunda sunucu bulunur, bir ucunda istemci bulunur. 00:01:00.654 --> 00:01:02.615 Yani giden araç ve gideceği nokta. 00:01:03.135 --> 00:01:08.199 Ve bu şifelenmiş trafik VPN tüneli üzerinden biz güvenli bir erişim sağlarız. 00:01:08.639 --> 00:01:13.622 VPN bilgisayarınızda otomatik olarak gelmez, VPN programları yüklemeniz lazım. 00:01:14.523 --> 00:01:21.527 Bununla ilgili bilgileri dijital güvenlik modülümüzde ve ünitelerimizde detaylı bir şekilde bilginize sunuyoruz. 00:01:23.632 --> 00:01:24.953 VPN ne işe yarar peki? 00:01:24.994 --> 00:01:27.075 Gelin bunu biraz daha teknik olarak ele alalım. 00:01:27.217 --> 00:01:31.342 Sanal Özel A yani VPN bir güvenlik tüneli görev görür demiştik. 00:01:31.402 --> 00:01:40.113 Verilerimizi ele geçirilse bile verilerimizi ele geçiren kişi elinde doğru paralı ve şifre olmadan verilerimizi kullanamaz çünkü verilerimiz şifrelendirilmiş 00:01:40.133 --> 00:01:40.373 hale gelir. 00:01:41.447 --> 00:01:49.674 Sanal Özel A yani VPN özellikle çalışanların yoldayken ya da evden şirket arasına erişmesini mümkün kılar ve bunu güvenli bir şekilde gerçekleştirmesini sağlar. 00:01:49.714 --> 00:01:54.218 Mesela havaalanındasınız, İstanbul Ankara arasında bir uçuşunuz var, toplantıya yetişeceksiniz. 00:01:54.578 --> 00:01:57.921 Son bir e-post atmanız lazım, e-postanın içerisinde bir fiyat teklifi var. 00:01:58.301 --> 00:02:06.948 Bu fiyat teklifinin kimsenin eline geçmesini istemiyorsanız eğer havaalanında Sanal Özel A VPN kullanmak kesinlikle size bu güvenli geçişi sağlayacaktır. 00:02:08.767 --> 00:02:13.189 Covid ile beraber evden çalışma alışkanlıklarımız da çok değişti. 00:02:13.669 --> 00:02:20.752 Unutmayalım ki evde kullandığımız internet, wifi yine güvenlik konusunda sorun çıkarabilecek bir teçhizat ve sistem. 00:02:21.412 --> 00:02:29.835 Çünkü apartmanın içerisinde birden fazla wifi var ve apartmanın içerisinde gelmiş herhangi bir ziyaretçi bu wifi sistemleri üzerinden, 00:02:29.895 --> 00:02:38.425 kablosuz erişim ağları üzerinden bizim bilgilerimizi ele geçirebilir ancak VPN kullanıyorsanız bunu gerçekleştirmesi son derece zordur. 00:02:39.102 --> 00:02:43.546 Güvenlik amacıyla VPN'in her internet oturumunda kullanılmasında mutlaka fayda vardır. 00:02:44.126 --> 00:02:53.454 İnternetteki hızımız biraz düşer fakat güvenlikle hız arasında bir kompromiste yani bir denge oturtmamız gerektiğinde ben güvenliği hıza tercih ediyorum. 00:02:54.215 --> 00:02:58.718 Kişisel kullanım için birçok ücretli ve ücretsiz VPN hizmet sağlayıcısı bulunmaktadır. 00:02:59.059 --> 00:03:01.781 Ücretli olanların tabii ki servisleri çok daha iyidir. 00:03:01.841 --> 00:03:12.766 Kendinize uygun olan VPN hizmet sağlayıcısını nasıl bulacağınıza dair de dijital güvenlik alanında yapmış olduğumuz derslerde Çevrimi Şehitim programımızın 00:03:13.166 --> 00:03:14.969 ünitelerinde detaylı bir şekilde gösteriyoruz.