Restoring a bitlocker system volume with Acronis 2014

I had reason to restore my Windows 8 system volume, which is encrypted using Bitlocker. Getting access to my data drive back after that wasn't quite as straightforward as I had hoped. For reference, and in case others get into this situation, here is what I encountered. My setup One system drive, SSD, encrypted using [...]

Recover Juniper SRX from failed boot

[Edit 2018-05-14] This article describes how to boot into the backup partition from u-boot. If your primary still boots, try "request system reboot media internal" (Branch SRX) or "request system reboot media disk" (High-End SRX) instead. Thanks to batdosi for this. They also mention sysctl from shell, that may be another way to set the [...]

Final IPv4 allocations; IPv6 readiness test; IPv6 world day

Final IPv4 allocations have been made today. Will this galvanize businesses to start moving to IPv6? We'll see 🙂   If you've been following my "IPv6 at home" series, here's a neat link to test your IPv6 readiness:   Finally, "World IPv6 day" will be on June 8th 2011. Google, Facebook, Yahoo, Akamai and [...]

Compiling 64-bit mpir using VC++ 2008 Express

MPIR is a Windows-friendly fork of GMP. It can be used as a direct replacement of GMP. I wanted to have my pycrypto build use _fastmath, and that meant having GMP support. Building a 64-bit version of MPIR is fully supported in Visual C++ 2010 Express. Not so, alas, for Visual C++ 2008 Express. The [...]

Compiling pycrypto on Win7-64

Having had occasion to compile pycrypto 2.3.1 for Win7-64 and Python 2.7.1-64, I'll share the process, and the result. Note 2016-02-03: This post is seriously old at this point, and pycrypto is not being actively maintained. Use pycryptodome, a fork of pycrypto, instead. It installs easily on Windows, pre-compiled or compiled from source, with good [...]

ipv6 at home / small office: Verizon FIOS IPv6 trials

Verizon FIOS has entered into a month-long IPv6 trial on April 6th. It is a dual-stack trial carried out with Verizon employees in Reston, Virginia. The "custom CPE" that are mentioned in the article reflect the fact that precious few home routers have full, or even partial, IPv6 support at present. With both Verizon and [...]

Warranty agreements for PC graphics cards

This post is to serve as a place for me to keep track of how different graphics card manufacturers handle warranty - in the US, that is, I'm not tracking Europe at all. Next time a graphics card fails on me, I'd like that to be an easy process. After compiling this, it's a pretty [...]

IPv6 at home or office, part 4.1: 6in4 tunnel on Juniper ScreenOS firewall

This blog post is part of a series on ipv6. Part 4.0 describes requesting a Hurricane Electric tunnel; this part explains how to configure a Juniper ScreenOS firewall - SSG, ISG or Netscreen - to work with such a tunnel. Sample environment I am going to give an example based on ScreenOS 6.0.0 or later [...]

IPv6 at home or office, part 4.0:, IPv6 routers

This blog post is part of a series on ipv6. In part 1, I provided an overview of ipv6 and looked at Teredo, the technology built into Windows Vista; in part 2, I looked at AYIYA tunnels through aiccu, using sixxs net as a tunnel broker. Part 2.5 is a collection of useful ipv6 tidbits, [...]

NIST releases ipv6 security draft

NIST, the "National Institute of Standards and Technology" in the US, has released a draft paper titled "Guidelines for the Secure Deployment of IPv6". It is a far-ranging paper that looks at IPv6 features one by one and discusses their security ramifications. It also carries some good discussion about IPv6 address allocation and IPv6 transitional [...]