There is an intriguing mention of “Server Push” in the specification of DNS over HTTPS (DoH) (RFC 8484). The RFC is somewhat vague in the description of server push, apart from noting a caveat that “extra care must be taken to ensure that the pushed URI is one that the client would have directed the same query to if the client had initiated the request (in addition to the other security checks normally needed for server push).”

It’s a somewhat elliptical reference to an intriguing possibility that a HTTPS server could deliver one or more DNS HTTP objects that contain both query and answer sections without the client ever making the DNS request/query to the server in the first place. It seems like an approach that is totally alien to the DNS as we know it, so it might be useful to ask: How did we get to this point where this resolverless form of DNS name resolution makes some sense? And, to whom does it make sense?
“Classic” DNS

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Let’s take a second to look back some 50 years to the world of 1972, and the technology and telecommunications environment at that time. The world of 1972 was one populated by a relatively small collection of massive (and eye-wateringly expensive) mainframe computers that were tended by a set of computer operators working around the clock and directed by specialised programmers, trained in the obscure symbol set used by the job control systems on these computers. In the average household of that time, the most complex item of consumer technology was the television set. And it was an analogue device. Our clocks still ran on clockwork. Yet, changes were underway. The enthralling technology achievements of manned space flight had captured not only the imagination of an entire generation but given us a glimpse into the power and utility of technology. Collectively we became obsessed with technology.

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　　1、天空是一块幕布，星星和月亮就是装饰这块幕布的花纹。瞧，这边的北斗七星组成了一个勺子，多奇特啊；看，那北极星在群星中是最耀眼的最亮的一颗星，多么像灯塔上的灯啊；望，那迢迢的牵牛星和皎皎的织女星正隔河相望呢；赏，那明亮的月亮，不就是个美丽的神话故事吗？

　　2、满天的星星，像黑夜里无数眨动的眼睛，像一颗颗光闪闪、亮晶晶的夜明珠。而天空则像无边的海洋，海面上闪着点点银光。

　　3、星星像萤火虫，因为星星会发出像萤火虫一样的光，还像宝石，闪闪发光，还像一双可爱、明亮的小眼睛，一眨一眨的，还像路灯在天空中给人们指路、照明。星星在天空中一闪一闪的，好像一颗颗小珍珠。远看一颗颗星星发着黄光，像一块块玉。

　　4、星星，在天空中闪烁着，一闪一闪的。有时，天灰蒙蒙，星星就若隐若现的释放着那微弱的光芒。夜色中，大地一片漆黑，星星的亮光微不足道。星星，便去请来了月亮姐姐帮忙。大地不再漆黑，但还是黑暗的！

　　5、天上一闪一闪的小星星个个都是“调皮鬼”，一会儿追逐打闹，一会儿蒙着眼睛捉迷藏。月亮姐姐还给小星星们讲嫦娥奔月的故事，它们一个个竖着耳朵听，眨着一双双机灵的小眼睛，多认真呀！

任何工作都不是靠嘴上说说的，再简单的事情也得去做，重复的事情坚持做，坚持的事情用心做，一点点积累，一点点进步，一点点成长，一点点升华，让努力、诚信、善良都成为习惯，成功一定属于你！

成功的路上没有人会叫你起床也没有人为你买单，你需要自我管理、自我约束、自我学习、自我成长、自我突破人都是被逼出来的，人的潜能无限，安于现状、固步自封，你将逐步被淘汰逼自己一把，突破自我。

每个优秀的人，都有一段沉默的时光。那一段时光，是付出了很多努力，日后说起时，连自己都能被感动的日子。有时候，即使拼尽全力，事情却仍不会按你想的那样发展，但即便这样，也要坚持。

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人生最持久的财富是多才多艺的表演者。人生无梦而终，希望无信而终。爱以不关心结束，友谊以不分享结束。心中总有希望，黑暗中总有希望；心中总有善良，然后你愿意付出一切，你习惯了依赖它。

茫茫人海，都是过客，所有的风景都不需要陌生，所有的过客都不需要大惊小怪，都是过客，所以生活中没有陌生人。来来往往，都是缘分，那些相同的看法，不同的看法，但缘分取决于深度，能从容面对，心是静的，时间是静的。

品尝一杯浑浊的酒，体验第一次生命的生活，观赏一朵盛开的花朵，阅读第一次生命的宁静，喝一杯茶，将过去记录为烟。这就是我们的生活。很简单。顺其自然。平静如水。

微笑是春风，是阳光，是感动的世界，因为温暖；劝诫是一种关怀，一种希望，一种信念，因为理解；紧握，没有言语，没有解释，是一种自信，一种勇气，一种力量，因为真诚。