* 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.

   * either of these would recurse back to us again!
   */
  private List<E> snapshot() {
    List<E> list = Lists.newArrayListWithExpectedSize(size());
    for (Multiset.Entry<E> entry : entrySet()) {
      E element = entry.getElement();
      for (int i = entry.getCount(); i > 0; i--) {
        list.add(element);
      }
    }
    return list;
  }

  // Modification Operations

  /**

        for ( Entry<String, Map<String, CacheEntry<DfsReferralDataInternal>>> entry : domains.entrySet() ) {
            log.trace("Domain " + entry.getKey());
            for ( Entry<String, CacheEntry<DfsReferralDataInternal>> entry2 : entry.getValue().entrySet() ) {
                log.trace("  Root " + entry2.getKey());
                if ( entry2.getValue().map != null ) {

            String[] keywords = query.split(" ");
            assertTrue(doc.entrySet().stream()
                    .anyMatch(entry -> entry.getValue().toString().toLowerCase().contains(keywords[0].toLowerCase())), doc.toString());
            assertFalse(doc.entrySet().stream()
                    .anyMatch(entry -> entry.getValue().toString().toLowerCase().contains(keywords[2].toLowerCase())), doc.toString());
        }
    }

      for (Map.Entry<K, Collection<V>> entry : other.builderMap.entrySet()) {
        putAll(entry.getKey(), entry.getValue());
      }
      return this;
    }

    /** Returns a newly-created immutable multimap. */
    public ImmutableMultimap<K, V> build() {
      Collection<Map.Entry<K, Collection<V>>> mapEntries = builderMap.entrySet();
      if (keyComparator != null) {

   * either of these would recurse back to us again!
   */
  private List<E> snapshot() {
    List<E> list = Lists.newArrayListWithExpectedSize(size());
    for (Multiset.Entry<E> entry : entrySet()) {
      E element = entry.getElement();
      for (int i = entry.getCount(); i > 0; i--) {
        list.add(element);
      }
    }
    return list;
  }

  // Modification Operations

  /**

        leftt ^= work;
        right ^= (work << 4);
        outInts[0] = right;
        outInts[1] = leftt;
    }


    /// Encrypt a block of bytes.
    public void encrypt( byte[] clearText, byte[] cipherText )  {
        encrypt( clearText, 0, cipherText, 0 );
    }

    /// Decrypt a block of bytes.
    public void decrypt( byte[] cipherText, byte[] clearText ) {

	mustPanic(t, "crypto/aes: input not full block", func() { c.Decrypt(bytes(1), bytes(1)) })
	mustPanic(t, "crypto/aes: input not full block", func() { c.Encrypt(bytes(100), bytes(1)) })
	mustPanic(t, "crypto/aes: input not full block", func() { c.Decrypt(bytes(100), bytes(1)) })
	mustPanic(t, "crypto/aes: output not full block", func() { c.Encrypt(bytes(1), bytes(100)) })

 * operations. A partially-reclaimed entry is never exposed to the user. Any {@link Map.Entry}
 * instance retrieved from the map's {@linkplain Map#entrySet entry set} is a snapshot of that
 * entry's state at the time of retrieval; such entries do, however, support {@link
 * Map.Entry#setValue}, which simply calls {@link Map#put} on the entry's key.
 *

    ImmutableList.Builder<V> valuesBuilder = new ImmutableList.Builder<>(map.size());
    for (Entry<Range<K>, ? extends V> entry : map.entrySet()) {
      rangesBuilder.add(entry.getKey());
      valuesBuilder.add(entry.getValue());
    }
    return new ImmutableRangeMap<>(rangesBuilder.build(), valuesBuilder.build());
  }