* Nginx
* HAProxy

## Let's Encrypt

Before Let's Encrypt, these **HTTPS certificates** were sold by trusted third parties.

The process to acquire one of these certificates used to be cumbersome, require quite some paperwork and the certificates were quite expensive.

But then **<a href="https://letsencrypt.org/" class="external-link" target="_blank">Let's Encrypt</a>** was created.

        if (stream.isOpen) {
          streams[streamId] = stream
        }
      }
      if (associatedStreamId == 0) {
        writer.headers(outFinished, streamId, requestHeaders)
      } else {
        require(!client) { "client streams shouldn't have associated stream IDs" }
        // HTTP/2 has a PUSH_PROMISE frame.
        writer.pushPromise(associatedStreamId, streamId, requestHeaders)
      }
    }

		b[n] = 0 // Replace trailing slash with NUL terminator
	}
}

// fitsInBase256 reports whether x can be encoded into n bytes using base-256
// encoding. Unlike octal encoding, base-256 encoding does not require that the
// string ends with a NUL character. Thus, all n bytes are available for output.
//
// If operating in binary mode, this assumes strict GNU binary mode; which means

  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */

     * @param toType The target type
     * @return Converted instance of the target type
     */
    private Object parse(final MXParser parser, final TypeLiteral<?> toType) throws Exception {
        parser.require(XmlPullParser.START_TAG, null, null);

        final Class<?> rawType = toType.getRawType();
        if (XmlNode.class.isAssignableFrom(rawType)) {
            return XmlNodeBuilder.build(parser);
        }

        public org.apache.maven.lifecycle.Lifecycle get() {
            try {
                LifecycleRegistry registry = lookup.lookup(LifecycleRegistry.class);
                return new WrappedLifecycle(registry, registry.require(name));
            } catch (ComponentLookupException e) {
                throw new LookupException(e);
            }
        }
    }

    @Singleton
    @Named(Lifecycle.CLEAN)

        throw new ClassCastException();
    }


    /**
     * @return session increased usage count
     */
    public SmbSessionImpl acquire () {
        long usage = this.usageCount.incrementAndGet();
        if ( log.isTraceEnabled() ) {
            log.trace("Acquire session " + usage + " " + this);
        }

        if ( usage == 1 ) {
            synchronized ( this ) {

  optional string controller = 1;

  // parameters is a link to a custom resource containing additional
  // configuration for the controller. This is optional if the controller does
  // not require extra parameters.
  // +optional
  optional IngressClassParametersReference parameters = 2;
}

// IngressList is a collection of Ingress.
message IngressList {
  // Standard object's metadata.

      }
    }
  }

  @Throws(IOException::class)
  fun nextFrame(
    requireSettings: Boolean,
    handler: Handler,
  ): Boolean {
    try {
      source.require(9) // Frame header size.
    } catch (e: EOFException) {
      return false // This might be a normal socket close.
    }

    //  0                   1                   2                   3

    upstreamSize: Long,
    metadataSize: Long,
  ) {
    val header =
      Buffer().apply {
        write(prefix)
        writeLong(upstreamSize)
        writeLong(metadataSize)
        require(size == FILE_HEADER_SIZE)
      }

    val fileOperator = FileOperator(file!!.channel)
    fileOperator.write(0, header, FILE_HEADER_SIZE)
  }

  @Throws(IOException::class)