Category Archives: Uncategorized

TerraStation NAS 5400D Firmware Customization

Overview I have purchased second-hand Buffalo Terrastation NAS 5400D last year. It costed me some hundred bucks but it is still far cheaper than the brand new one. I just configured it for a home nas and I was really … Continue reading

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Raw Socket vs NetFilter

Overview I recently had the stuff to work with TCP/IP stack. My small project is bridging all IP packets from modem PPPTP connection to PPPOE connection with PC. For this, I develop a bridging program on userspace and open a … Continue reading

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Open Source IPSec

It took me many years to secure my time to write down a blog. Recently, one of my friends asked me to help him resolve an IPsec issue with Fortigate Device. In fact, I do not have much experience with … Continue reading

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AndroidManifest.xml “coreApp” attribute

I am playing with AOSP to build my own android. What I want to do is make my own IME as the only IME on system. Everything is fine till encryption is invoked. Well, after encrypting, the system reboots and asks  me to … Continue reading

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Linux and Glibc

Share vs static We know that glibc is designed for dynamic link (dso) because share libs are very efficient about the size (code space is share btw many files), flexible and easy to upgrade. These features are good for PC, … Continue reading

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