HTTP protected by TLS. It encrypts exchanges, detects tampering and authenticates the server with a server certificate. URLs start with https:// and the default port number is 443. Requests and responses have the same form as in HTTP, with a TLS layer underneath.
Japanese name: HTTPS
HTTPS appears in 12 practice questions across 6 topics, including Computer Networking Basics, Web Technology Basics, Information Security Basics.
Field: Web Technology Basics
The browser first opens a TCP connection to the server (QUIC in HTTP/3) and then performs a TLS handshake. The browser sends the cipher suites it supports, a value for key exchange and the name of the server it wants (SNI), and the server returns its certificate and its own key-exchange value. Using a key exchange such as ECDHE, the two derive a fresh shared key for each connection, and the browser verifies the server's certificate. The HTTP requests and responses that follow are encrypted and protected against tampering with a symmetric cipher such as AES-GCM. With TLS 1.3 the handshake takes one round trip.
A server certificate is a domain name and public key vouched for by a certificate authority (CA) with a digital signature. The browser checks that the certificate chains through signatures to a trusted root CA, that it is within its validity period, that it matches the host name in the URL and that it has not been revoked. This prevents man-in-the-middle attacks in which someone intercepts the connection and poses as the real server. If the checks fail, the browser shows a warning and stops the connection.
HTTPS protects page content, the path and query of the URL, headers and cookies from eavesdropping and tampering along the way. The server's IP address and the volume and timing of traffic remain visible, and the domain name can often be learned from DNS queries or the SNI. HTTPS also protects only the channel; it does not show that the site's operator can be trusted, because fake sites can obtain certificates and use HTTPS too. It is used together with HSTS, which prevents downgrades to HTTP, and the Secure cookie attribute, which sends cookies only over HTTPS.
Answer: A. Ingress
An Ingress is a resource that defines rules for routing HTTP and HTTPS requests from outside the cluster to Services according to the host name and URL path, and TLS termination can also be configured there. The component that actually receives and routes the requests is an Ingress controller installed in the cluster (which acts as a reverse proxy). A Service of type: ClusterIP is an endpoint reachable only from inside the cluster and has no path-based routing. A ReplicaSet keeps the number of Pods and has nothing to do with routing traffic.
Answer: B. About 300 ms
First, the TCP three-way handshake takes one round trip (the client can send its first TLS message together with the final ACK). Next, the TLS 1.3 handshake takes one round trip, and then the HTTP request and response take one more, for three round trips in total: 3 × 100 = 300 ms. With TLS 1.2 the key exchange takes two round trips, giving four round trips, or 400 ms. This waiting time depends on the number of RTTs, which is set by distance, so adding link bandwidth does not shorten it. QUIC, used by HTTP/3, combines the transport and cryptographic handshakes into one round trip and also offers a way to send data in the first flight when reconnecting (0-RTT).
HTTPS encrypts HTTP exchanges with TLS and adds tamper detection and server authentication. Requests and responses have the same form, and the default ports are 80 for HTTP and 443 for HTTPS. With plain HTTP, devices along the path can read or alter the content.
HTTPS confirms that the traffic is not read or altered in transit and that you are connected to a server for that domain name. It does not guarantee that the site itself is genuine or harmless. Phishing sites can use HTTPS too, so check the domain name carefully.
Both, for different jobs. The handshake uses public-key techniques for key exchange and certificate-based authentication, and the actual data is encrypted with a fast symmetric cipher using the keys created there.
An Ingress is a resource that defines rules for routing HTTP and HTTPS requests from outside the cluster to Services according to the host name and URL path, and TLS termination can also be configured there.
In a Kubernetes cluster, HTTPS requests arriving for one ho…443 is the server-side port (HTTPS) and appears as the source port in the response.
Host A (192.168.1.10), inside a router performing NAPT whos…Typical ones are HTTP 80, HTTPS 443, DNS 53, SSH 22 and SMTP (mail transfer) 25.
Which correctly pairs protocols with the standard port numb…A cookie with the Secure attribute is sent only over HTTPS.
Which of the following correctly describes the cookie set b…Because it has the powerful ability to intercept communication, it can be used only on HTTPS pages (and on localhost for development), and it cannot touch the DOM directly.
Which of the following correctly describes a Service Worker?As an Amazon Associate I earn from qualifying purchases.
HTTP (Hypertext Transfer Protocol) URL (Uniform Resource Locator) TLS Cookie (HTTP cookie) IP address Cross-site scripting (XSS) Reverse proxy DNS (Domain Name System) Port number Kubernetes