long time no photo...
today @ OCCASIONS 10th Anniversary Party...
How we set up our iSCSI target servers
The SAN backend for our new fileserver environment is Linux serversacting as iSCSI targets. There's two sides to their setup; the hardwareand the software.
Hardware-wise, the biggest problem was that there are essentially nogeneric servers (especially inexpensive ones) that have enough disks. Sowe punted; we're using 'generic' 1U servers, specifically SunFire X2100M2s, with the iSCSI data disks in external ESATA-based enclosures. Ourcurrent enclosures give us twelve
步入寒冬
如之前所說，跌破一萬點就等於見了底。不過見底不等於一定要大量入市，因為相信道指短期會在9,500---11,000反復上落，建議現在可以分段入優質股，例如GE（現價：$21.5
崔真實與金正日
Gut Feeling
To be fair, our brains tend to interpret the world within the limitation of sensory perception, which is incredibly biased and doesn't make sense at all. While we think that we are given choices, we have difficulty understanding the fact that we have been coaxed to follow the wrong instinct. Well, if you don't believe me, think about the example of making decisions on what we eat and drink.
A problem with Python's help()
I mentioned in passing that when I ampoking around an unfamiliar object (well, class), I usually reach firstfor dir() and only somewhat later try help() . There's several reasonsfor this, but one of them is that help() is overly verbose in a uselessway.
The problem is that many objects have a lot of completely standardmethods like __repr__ , generally with absolutely no usefuldocumentation text, and help() will gleefully tell you all about them
SSL certificate revocation doesn't work (for web browsers)
How SSL certificate revocation is supposed to workis conceptually simple. The CA publishes a CRL , andSSL-using programs check the CA's CRL before actually accepting a signedSSL certificate. Despite this, SSL certificate revocation doesn't workon the web in either practice or in theory.
It doesn't work in practice because, well, it doesn't; you cannotrevoke a SSL certificate today and have most web users notice. Theonly web browser that actively supports any sort of CRL checkingis