Category: Uncategorized

  • Some future predictions

    WhatsApp sold for 19B! SMS has changed. Communication has changed. Everything is coming back to data and telcos only has Internet/data plan to charge. Before they have voice (long distance, international), text, data. Now it’s only data that matters. I see these as hot: Data Compression and Caching/Optimization as they become more and more important…

  • HDD to SSD and Windows 8.1

    Couple issues – Acronis True Image HD shipped with Crucial M500 does not work with Windows 8 and GPT partitions. It will not see the HDD and therefore cannot clone it. Need to use a newer version, like Acronis True Image 2014 Premium – ATI/AMD Catalyst 7730 driver crashes in Windows 8.1 so when it…

  • LVS, director and SSL cipher

    Some odd behavior, handshake with a specific cipher passed with the director but not when handshake directly with a realserver. openssl s_client -connect VIP:443 -cipher EDH-RSA-DES-CBC-SHA openssl s_client -connect VIP:443 -cipher DES => Connected openssl s_client -connect RIP:443 -cipher EDH-RSA-DES-CBC-SHA openssl s_client -connect RIP:443 -cipher DES => No connection

  • Asus Router – Port Forwarding

    Caused me some grief for its lack of notification in the UI. I enabled uPnP on the IP camera and it showed up in the port forwarding log but it could not be accessed. Port is open. It turned out that I need to also explicitly enable Port Forwarding (and leave the it other settings…

  • Gravity drip irrigation

    I’ve been setting up a system of cheap drip irrigation for a remote location. Here are the facts and criteria Remote, no electricity, off-grid Water from well, well pump run only by generator Multiple trees Drip time before refilling (about one per week) Hot summer (80-100F), wet mild winter Windy site, full sun, no shade…

  • Google Drive, XAMPP, MacBook

    Rename “Google Drive” to one without space. Example: GoogleDrive to avoid issues Move app to that folder: /Users/xxx/GoogleDrive/htdocs/MyApp Edit XAMPP etc/httpd/extra/httpd-vhost.conf: <VirtualHost *:80> DocumentRoot “/Applications/XAMPP/xamppfiles/htdocs” ServerName localhost </VirtualHost> <VirtualHost *:80> DocumentRoot “/Users/xxx/GoogleDrive/htdocs/MyApp1/webroot” ServerName dev.app1 </VirtualHost> <VirtualHost *:80> DocumentRoot “/Users/xxx/GoogleDrive/htdocs/MyApp2/webroot” ServerName dev.app2 </VirtualHost>  Map custom domain to localhost in /etc/hosts: 127.0.0.1 dev.app1 127.0.0.1 dev.app2

  • TL-WR1043ND, DD-WRT and NetGear WNDR3700

    Setup 1043ND (DD-WRT flashed) as wireless repeater for WNDR3700 (stock firmware). First set it up as Client Bridge, make sure it works. One major gotcha is DHCP, did not flow through initially so I thought it wasn’t working when a static assignment showed it was bridged properly. Then add the virtual interface as AP to…

  • Retina Macbook Pro – First impressions

    Got mine 2 days ago. Here is what I like: Fast! Open apps almost instantly thanks to SSDs Retina is very sharp, almost too sharp and many apps or logos turn blurry because of the high resolution. Viewing photos from D800 is fantastic, very sharp and the colors are extremely vivid. Love it! Illuminated keyboard,…

  • Nice replication setup

    If you have a chain replication: A=>B=>C. If B is out of sync for some reason, C will be out of sync and you need to rebuild. The nice thing is that when B is rebuilt, it automatically rebuilds all its slaves (C1, C2, C3, etc.) because B&C are still in replication, the DROP IF…

  • Ideas

    Vision: an app that can identify what’s in a photo. Examples: use your mobile phone to capture an unknown flower and it tells you what kind of flower. Applications: plant, insect, bird, fish identification. If it does not know, it uses crowd-sourcing for identification (forums/community input). Anyone knows of such an app? Vision: virtual organizer…