关于TLS混淆，V2Ray用的是真TLS，即完全符合TLS协议；Shadowsocks的obfs和SSR的TLS混淆用的均为假TLS，即只模拟了部分TLS协议。真TLS的优势是服务器端防探测，第三方用任意的TLS数据包探测，V2Ray都能做出合理的响应，而假TLS则带有明显的特征。真TLS会有首次连接时进行一个两次通信(2-rtt)的握手，比起假TLS略慢，但之后的连接中，由于使用了缓存，握手不会有性能差异。
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Pinterest (PINS) closed at $71.75 in the latest trading session, marking a -0.18% move from the prior day. This change lagged the S&P 500's daily gain of 0.1%. Meanwhile, the Dow gained 0.9%, and the Nasdaq, a tech-heavy index, lost 0.59%. Heading into today, shares of the digital pinboard and shopping tool company had lost 17.41% over the past month, lagging the Computer and Technology sector's loss of 5.38% and the S&P 500's gain of 0.71% in that time. Investors will be hoping for strength from PINS as it approaches its next earnings release. The company is expected to report EPS of $0.07, up 170% from the prior-year quarter. Our most recent consensus estimate is calling for quarterly revenue of $467.87 million, up 72.05% from the year-ago period.
Telegram is riding high, adding tens of million of users this year. Now the bill is coming due.Telegram is one of the few significant social-media challengers to Facebook Inc., FB -1.90% on a trajectory toward one billion users active each month by the end of 2022, up from roughly 550 million today.
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