OpenVZ, Tips and Tricks #1 – ntpdate, Operation not permitted!

May 1, 2011

This is the first episode of my ongoing series on OpenVZ: tips and tricks for administrators. OpenVZ VE and ntpdate: Operation not permitted! Scenario Your isolated container (also known as VE) is not able to execute the ‘ntpdate‘ command (it sets the local date and time by polling the Network Time Protocol (NTP) server(s) given [...]

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ZORG, new C++ and Java ZRTP implementations released

January 12, 2011

PrivateWave Italia S.p.A, an italian company engaged in developing technologies for privacy protection and information security in voice telecommunications, is pleased to announce the release of ZORG, a new open source ZRTP protocol implementation available for download from http://www.zrtp.org. ZRTP [1] provides end-to-end key exchange with Elliptic Curve Diffie-Hellmann 384bit and AES-256 SRTP encryption . [...]

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Encrypted mobile to landline phone calls with Asterisk

October 25, 2010

We at PrivateWave have just released a technical howto on how to build up secure mobile to landline VoIP infrastructure with: Asterisk 1.8 (it natively supports SIP/TLS + SDES key exchange for SRTP) PrivateGSM Enterprise SNOM 300 Desktop phones

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New job, new life, new everything

June 9, 2010

Well, I must admit that I don’t know where to start from! It took me few months to find the time to update this blog, but better late than never! After 3 amazing years spent working at Red Hat, I’ve decided on March to move on and seek new challenges. I’m thankful for having had the chance [...]

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Enhanced SIM (ESIM): a proposal for mobile security

September 19, 2009

Great Minds Think Different: my good friend and colleague Giuseppe “Gippa” Paternó (last, but not least, visiting researcher on security and networking at the Centre for Telecommunication Value-Chain Research, Trinity College Dublin) has published his latest paper, “Enhanced SIM (ESIM): a proposal for mobile security“. Abstract—The Enhanced SIM wish to address primarily the need of [...]

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