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Disable client certificate requests for Cyrus IMAP
Cyrus IMAPd always asks for a client certificate. This can be unnerving for users running Thunderbird as their mail client which have a user certificate installed and are thus always asked whether they want to send it. (There is no way to tell Thunderbird not to send a client certificate, you can only select which…
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Using TLS Interposer with OpenSSL 0.9.8g (Debian Lenny)
Older installations, such as trusty Debian Lenny, come with versions of OpenSSL 0.9.8. The default cipher suite used by TLS Interposer is very restrictive, on purpose. For OpenSSL 0.9.8g, the only remaining cipher is RC4-SHA. Especially when configuring XMPP servers such as ejabberd to use TLS Interposer, RC4-SHA alone can be not enough (e.g., when…
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Interactive web sites for efficient cooperation based on open standards
We published a position paper in German.
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Securing fetchmail with improved TLS parameters
fetchmail is the workhorse for downloading mail from legacy addresses. This does not mean that you want to be limited to legacy security for your passwords or mail contents. TLS Interposer helps upgrade security.
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Upgrade ejabberd to the latest TLS security [UPDATE#2, 2014-06-05]
![Upgrade ejabberd to the latest TLS security [UPDATE#2, 2014-06-05]](https://netfuture.ch/wp-content/uploads/2013/11/XMPP-Grade-A.png)
ejabberd is a very fine XMPP server. However, it has very few options to configure its SSL and TLS security settings away from the very weak OpenSSL defaults. The TLS Interposer makes securing TLS used by ejabberd a breeze.
