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David Yin's Blog
Tech geek. Life geek.

tls

Firefox always show Performing TLS Handshake

2019-05-22
In: Software
Tagged: Firefox, handshake, profile, SSL, tls

During last two weeks, my firefox getting slower and slower. It is Windows 10, with Firefox 67 or early version. When I enter an HTTPS web site URL into the address bar, it took a lot of time to load the page. Sometimes it is timeout error. Down in theContinue Reading

How to get a perfect SSL Labs score

2018-08-11
In: L.A.M.P.
Tagged: config, nginx, Score, secure, SSL, ssllab, tls

It is easy to get an A+ on your website. But it is a little bit hard to make a 4 parts, Certificate, Protocol Support, Key Exchange, and Cipher Strength, to be 100%. Most of time, I got A+ rating of my site. For individual scores, the last two areContinue Reading

Server Name Indication (SNI)

2015-04-07
In: Web & Network
Tagged: "Web server", Browser, server name, SNI, SSL, tls

Server Name Indication is an extension to the TLS computer networking protocol by which a client indicates which hostname it is attempting to connect to at the start of the handshaking process. The most import reason to have this extension is to allow a server to present multiple SSL webContinue Reading

Disable SSLv2 and SSLv3 in Apache

2014-10-16
In: Web & Network
Tagged: Apache, configuration, security, SSL, ssl.conf, tls

As we always disable SSLv2 in Apache. Now it is SSLv3 turn. The recent news about the SSL 3 vulnerability is so important that I have to disable it as well. So just modify the ssl.conf of Apache [ssh]SSLProtocol All -SSLv2 -SSLv3[/ssh] The web site still has TLS 1.0, TLSContinue Reading



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