Rotate screen into potrait mode

nano /etc/X11/xorg.conf
-------------------------------------------------------------------------
Section "Monitor"
Identifier "Configured Monitor"
EndSection

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
DefaultDepth 24
EndSection



Section "Module"
Load "glx"
EndSection

Section "Device"
Identifier "Configured Video Device"
Driver "nvidia"
Option "NoLogo" "True"
Option "RandRRotation" "on"
EndSection
-------------------------------------------------------------------------

tambah kan :

Option "RandRRotation" "on"

ke dalam bhagian Section "Device"

lepas tu , reboot comp, bukak terminal dan masukkan command ni :

xrandr -o right (utk pusing kanan)
xrandr -o left (utk pusing kiri)
xrandr -o normal (utk normal)

ni utk driver nvidia, driver lain aku tak tahu...

Ubuntu - Get rid of the Ubuntu Splash screen permanently

# nano /boot/grub/menu.lst

edit from this :

title Ubuntu 7.10, kernel 2.6.22-14-generic
root (hd0,0)
kernel /boot/vmlinuz-2.6.22-14-generic root=UUID=xxxx ro quiet splash
initrd /boot/initrd.img-2.6.22-14-generic
quiet

to be like this:

title Ubuntu 7.10, kernel 2.6.22-14-generic
root (hd0,0)
kernel /boot/vmlinuz-2.6.22-14-generic root=UUID=xxxx ro
initrd /boot/initrd.img-2.6.22-14-generic

save and exit.
done.

FreeBSD - keep update with CVSUP

#cd /usr/ports/net/cvsup-without-gui
#make
#make install clean
#cp /usr/share/examples/cvsup/ports-supfile /root/ports-supfile
#nano /root/ports-supfile

content of ports-supfile
---------------------------------------------------
*default tag=.
*default host=cvsup3.tw.FreeBSD.org
*default base=/var/db
*default prefix=/usr
*default release=cvs tag=RELENG_7
*default delete use-rel-suffix
*default compress
src-all
ports-all tag=.
---------------------------------------------------

save and exit.

#reboot
#cvsup -g -L 2 /root/ports-supfile

done.

If you add any of the ports or doc collections to this file, be sure to specify them with a "tag" value set to ".", like this:

ports-all tag=.
doc-all tag=.

If you leave out the "tag=." portion, CVSup will delete all of the files in your ports or doc tree. That is because the ports and doc collections do not use the same tags as the main part of the FreeBSD source tree.

For more explanation, please refer to /usr/share/examples/cvsup/stable-supfile file.

Rsync using ssh with different port number

rsync -avz -e "ssh -p 2222" user@hostname.com:/remote-path /local-path

Put a process in background from SSH

to put a process/command in background , and still running although ssh connection terminated, give this command:

#nohup command &

GPG error

problem:
------------------------------------------------------------------------------------------
W: GPG error: http://dl.google.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A040830F7FAC5991
W: You may want to run apt-get update to correct these problems



solution:
------------------------------------------------------------------------------------------
flufyz$ gpg --keyserver dl.google.com --recv A040830F7FAC5991
flufyz$ gpg --export --armor A040830F7FAC5991 | sudo apt-key add -

update or edit SVN repository path

to update SVN repository path, let say from http://aaaaa.com to http://bbbb.com:

1-go to directory which hold the svn repo and go into .svn directory
2-look for file named "entries"
3-edit using any text editor, such as vi or nano
4-look for line http://aaaaa.com , and change it to http://bbbb.com
5-save and exit
6-give command svn update to test
7-finish.

Ubuntu - install JRE plugin for firefox

#apt-get install sun-java6-plugin

then open firefox, key in about:plugins in URL bar..

JAVA plugin should listed and enabled

Pidgin version < 2.5.7 cannot login yahoo

problem:
--------------------
pidgin cannot login to yahoo messenger..

solution:
-----------------
go to modify account > yahoo account > advanced tab
set pager server as "cn.scs.msg.yahoo.com" instead of "scs.msg.yahoo.com"
exit,save , logout and login again...

Add or remove a script on startup in Debian or Ubuntu

Add a script:

1. put the script under /etc/init.d/
2. #chmod 755 myscript
3. #update-rc.d myscript defaults
4. #reboot

-------------------------------------------------------
Remove :

1. #cd /etc/init.d/
2. #update-rc.d -f myscript remove
3. #reboot

more over , please use "man update-rc.d" command

Apache - Could not determine the server's fully qualified domain name, using 127.0.0.1 for ServerName

problem :

Apache - Could not determine the server's fully qualified domain name, using 127.0.0.1 for ServerName


solution:

open httpd.conf
add this line:

Servername myservername

SSH without password

sometimes it become bored when you need to key in the password each time you want to login to the server by using ssh..so how to login through ssh without a password?

this step need to be once only and it done from client side only:

#ssh-keygen -t rsa

Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
c1:7b:fe:cc:32:9f:51:6b:0d:be:5c:6d:b0:94:b9:fc root@bordersmart

#scp /root/.ssh/id_rsa.pub user@targetserver.com:/root/.ssh/authorized_keys

Now try login to targetserver.com

#ssh targetserver.com

It will not prompt a password. Done. Anyway, try google about DSA vs RSA. There are differents, but it depend how the usage.

How to install / add font in Ubuntu

Actually I'm quite new using GIMP, because before this I'm more familiar with Photoshop. Today one of my problem make me learn how to install font in Ubuntu. Like Windows, we just can copy and paste the font into C:\Windows\Font directory. But in Ubuntu , it take several steps to make it done. Anyway, it's much better to know both ways , I mean in Windows and Ubuntu, or Linux generally. So, here you go:

To install common Microsoft Truetype font, you can use either APT or Synaptic Package Manager..it's just depend on your choice..but for me I prefer to use APT because I always open my shell..hehe..this font already embedded in repositories..that's why we just can fetch it easily..

$sudo apt-get install msttcorefonts texlive-fonts-extra

For single user ( only user A will have the font instead of all user in the system)
---------------------------------------------------------------------------------------------------------------------------------

$cd /home/username

1.make directory name ".font" if it does not exist. Else just change current directory to this one.

$mkdir .fonts

2. copy the font into this directory:

$cp fontname.ttf .fonts/

3. tell the system about new font:

$fc-cache -f -v

fc-cache : Build font information cache files

-f : Force re-generation of apparently up-to-date cache files, over‐
riding the timestamp checking.

-v : Display status information while busy

*refer to man


For all user in the system
-------------------------------------------

1. copy the font into /usr/local/share/fonts/ directory
2. give fc-cache -f -v command
3. done


And now open your text editor , go to font side, and check your installed font. Walla! It should appear.. ;)

reference : http://geekybits.blogspot.com/2007/11/installing-fonts-in-ubuntu-710.html

FreeBSD - ERROR 1153 (08S01) at line 706: Got a packet bigger than 'max_allowed_packet' bytes???

1. create new file name my.cnf under /usr/local/etc
2. put this content, save and exit :
[mysqld]
max_allowed_packet=64M
3. restart mysql server (/usr/local/etc/rc.d/mysql-server restart)
4. finish and try load again that packet.