Tarotoast’s Stuff

警告，這很惡搞 XD

Why would you do that? Because you can! And the fact that it’s a VPS/Dedicated Server, chances are its Internet connection is a lot faster than yours. As root, the following steps are tested working for Ubuntu 7.10 Gutsy.

1) Install Gnome, vnc4server, inetd
apt-get install gnome compiz vnc4server openbsd-inetd

2) Enable XDMCP
Edit /etc/gdm/gdm.conf
Look for:
[xdmcp]
Enable=false

Change it to:
Enable=true


3) Configure inetd:
Edit /etc/inetd.conf, add (one line):
5901 stream tcp nowait root /usr/bin/Xvnc Xvnc -inetd :1 -query localhost -geometry 800x600 -once -fp /usr/share/fonts/X11/misc -DisconnectClients=0 -NeverShared securitytypes=none -extension XFIXES
Now restart inetd with service restart openbsd-inetd

4) Restart GDM
service restart gdm

DONE. Now you can access your VPS as a GNOME desktop with with any vnc client at serveraddress:1, :1 being the display. You can add multiple displays for multiple desktops at the same time ;)

好孩子不要嘗試喔 XD

最近剛搬到 Slicehost，有個大問題就是 SSH 沒放多久就自動斷線
明明隔壁視窗的 Bluehost 都放了兩天 idle 都沒斷，為啥 Slicehost 才半個小時就葛掉了
稍微找了一下 (其實我丟了一張 ticket :$)，發現其實只要再 sshd 裡面修改一下就好了:
編輯 /etc/ssh/sshd_config
KeepAlive yes
ClientAliveInterval 60

還有因為我是從 Ubuntu 下面 GTerm 連過去的，所以其實還可以這樣改:
編輯 ~/.ssh/config
ServerAliveInterval 60

然後很奇妙的是，不再斷線了 XD
Bye bye SSH disconnecting every so fu*ing often :)

沒那種東西 .D.

不過 AcetoneISO 是個很不錯的 replacement!

寫這篇文章時候裝的版本是 2.0.1 (Package) 裝了後馬上就可以用了

他有個很方便的 Play DVD-Movie ISO 的功能

簡單說就是 Mount + Launch Media Player 包在一起的貼心 (!?) 小程式

把檔案存成 ipodconv

input_file=$1
output_dir=/home/peter/.ipodvideos

ffmpeg -y -i "${input_file}" -an -v 1 -threads auto -vcodec libx264 \
  -b 1000k -bt 175k -refs 1 -loop 1 -deblockalpha 0 -deblockbeta 0 \
  -parti4x4 1 -partp8x8 1 -me full -subq 1 -me_range 21 -chroma 1 \
  -slice 2 -bf 0 -level 30 -g 300 -keyint_min 30 -sc_threshold 40 \
  -rc_eq 'blurCplx^(1-qComp)' -qcomp 0.7 -qmax 51 -qdiff 4 \
  -i_qfactor 0.71428572 -maxrate 768k -bufsize 2M -cmp 1 -s 640x480 \
  -f mp4 -pass 1 /dev/null

ffmpeg -y -i "${input_file}" -v 1 -threads auto -vcodec libx264 -b 1000k\
  -bt 175k -refs 1 -loop 1 -deblockalpha 0 -deblockbeta 0 -parti4x4 1 \
  -partp8x8 1 -me full -subq 6 -me_range 21 -chroma 1 -slice 2 -bf 0 \
  -level 30 -g 300 -keyint_min 30 -sc_threshold 40 \
  -rc_eq 'blurCplx^(1-qComp)' -qcomp 0.7 -qmax 51 -qdiff 4 \
  -i_qfactor 0.71428572 -maxrate 768k -bufsize 2M -cmp 1 -s 640x480 \
  -acodec libfaac -ab 192k -ar 48000 -ac 2 -f mp4 \
  -pass 2 "${output_dir}/${input_file}.mov"

2 pass encoding 的用意是在於第一次是作 profiling，然後第二次就參照第一次得到的 profile 來分配哪些片段要比較高的 bitrate，這樣整體壓縮起來的效果會好很多。

不過話說回來以上的 h264 + aac 的壓縮實在非常 CPU intensive，速度大概是 mp4 的 4~5 倍.. 囧