Category: Computer

火狗告急！まだ逆境か？夢をあきらめないで！

http://firedog.hk/blog/2007/08/08/end-of-firedog/

火狗工房, 一間香港原創遊戲開發公司, 在他的的開發blog中,

宣佈若沒有資金的話, 將會結業.

愛神餐館, 一隻能成功打入日本市場的遊戲,

火狗的成功, 雖然蝕足八年,

但正如他們的blog所說

“能夠創作原創的動畫、漫畫和遊戲，就是我的夢想，就是火狗全體成員的夢想”,

這不只是火狗全體成員的夢想,

亦是我們軟體開發員的夢想,

亦證明香港是有能力開發出好的遊戲.

在此只能衷心希望火狗能支持下去,

繼續出好game.

就算不能支持下去, 亦希望其最後作品是一個成功的作品.

若真的結業，

真香港的損失, 香港又失去一間能開發出高質素遊戲的公司.

唉, 在ｃｏｍｉｃ　ｗｏｒｌｄ排隊去買火狗週邊產品及遊戲的情景可能不復存在……可惜可惜.

Enable Quota on FreeBSD 6.2

Need to recompile kernel.

cd /usr/src/sys/i386/conf

cp GENERIC MYKERNEL

Edit the file MYKERNEL and add the line

options QUOTA

Then run the following commands:

/usr/sbin/config MYKERNEL

cd ../compile/MYKERNEL

make depend

make

make install

——

To Enable Quota

Edit the file /etc/fstab and look for the entry, in which the directory /home is mentioned, e.g.

/dev/ad0s1d /home ufs rw 2 2

Add the words userquota and groupquota as follows:

/dev/ad0s1d /home ufs rw,userquota,groupquota 2 2

To enable quota at boot time you have to add the following lines to /etc/rc.conf:

quota_enable=”YES”

check_quotas=”YES”

Reboot the system:

shutdown -r now

After the reboot run the following commands:

quotacheck -a

quotaon -a

Install the setquota-Tool at last:

pkg_add -r setquota

Xen 3.0.3 on Debian 4.0 Etch

Here is the instruction for running XEN on Debian Etch on Core2Duo 6300 with 2GB Ram.

First, install all the packages that related to XEN.

apt-get install  libc6-xen linux-headers-2.6-xen-686
linux-headers-2.6-xen-vserver-686 linux-headers-2.6.18-4-xen
linux-headers-2.6.18-4-xen-686 linux-headers-2.6.18-4-xen-vserver
linux-headers-2.6.18-4-xen-vserver-686 linux-image-2.6-xen-686
linux-image-2.6-xen-vserver-686 linux-image-2.6.18-4-xen-686
linux-image-2.6.18-4-xen-vserver-686 linux-image-xen-686
linux-image-xen-vserver-686 linux-modules-2.6.18-4-xen-686
linux-modules-2.6.18-4-xen-vserver-686 xen-hypervisor-3.0.3-1-i386
xen-hypervisor-3.0.3-1-i386-pae xen-ioemu-3.0.3-1 xen-tools
xen-utils-3.0.3-1 xen-utils-common bridge-utils iproute sysfsutils

Then, boot reboot the machine and choose the pae kernel to boot.

Next, add the following into /etc/network/interface for the Xen Bridge neteork.

auto xenbr0
iface xenbr0 inet dhcp
bridge_ports eth0
# optional
bridge_maxwait 0

To build a new debian domain:

Configurature /etc/xen-tools/xen-tools.conf collectly such as kernel version and initrd.

Then, run

xen-create-image --hostname=<name_of_DomU> --dir /home/xen/images/debian

Next, configurature

/etc/xen/<name_of_DomU>.cfg

to make sure all the Tag are correct.

Finally, run

xm create test.cfg -c

to run the VM.

As Core2Duo 6300 support VT, we could run Windows under Xen.

To run Windows in Xen,

first, build an image file for windows.

dd if=/dev/zero of=/home/xen/images/WinXP.img bs=1M count=4096

Next, copy the Windows XP install CD in to an iso format

dd if=/dev/cdrom of=/home/xen/cds/winxp.iso

Then, build a winxp config file in /etc/xen as the following. eg:

vi /etc/xen/winxp
kernel = "hvmloader"
builder='hvm'
memory = 512
name = "winxp"
vif = [ 'type=ioemu, bridge=xenbr0' ]
disk = [ 'file:/home/xen/images/WinXP.img,ioemu:hda,w',
'file:/home/xen/cds/winxp.iso,hdc:cdrom,r' ]
#cdrom = '/dev/hda'
device_model = 'qemu-dm'
boot="dc"
sdl=1
vnc=0
nographic=0
localtime=1

Run

xm create winxp -c

to boot up the VM and install XP.

After finished installing the XP, turn off the VM and

change the

boot="dc"

to

boot="c"

in

/etc/xen/winxp


xen1xen2xen3


xen4xen5

	


	





	

		
		
How to generate a self-signed certificate for apache2 in Debian
	


	
	
	

		
The source is now on Github: https://github.com/wanleung/self-signed-certificate-generator


While the Debian apache2 package was in Apache version 2.0, there was a tool called “apache2-ssl-certificate” for the users to use that script to gererate their own self-signed cert themselves. However, the script was removed since the apache2 package had been upgraded to Apache v2.2.


I had modified the old script so that it can generate a suitable self-signed cert for the new apache2(Apache v2.2) in Debain.


Here is the code:


 #!/bin/sh -e DAYS="365" CERTPATH="/etc/apache2/ssl" CERTNAME="apache" KEYBIT="1024" FORCE="0"; usage(){ echo "This is a program for the users to gernate their own self-signed certificate." echo echo "Usage: $0 [[OPTION] [VALUE]]..." echo echo "OPTIONS:" echo " -h | -help | --help -- To Show This Help" echo " -f | --force -- Force to generate the cert" echo " -d | -days | --days -- cert to expire after x days, default is 365" echo " -p | -path | --path -- Path of the cert will be stored," echo " default is /etc/apache/ssl" echo " -n | -name | --name -- the name of the cert, default is apache" echo " -b | -bit | --bit -- length of the key, default is 1024" echo } createcert() { if [ "$FORCE" != "1" -a -f $CERTPATH/$CERTNAME.pem ]; then echo "$CERTPATH/$CERTNAME.pem exists! Use \"$0 --force.\"" exit 0 fi echo echo creating selfsigned certificate echo "replace it with one signed by a certification authority (CA)" echo echo enter your ServerName at the Common Name prompt echo echo If you want your certificate to expire after x days call this programm echo with "--days x" mkdir -p "$CERTPATH/" export RANDFILE=/dev/random openssl req $@ -new -x509 -days $DAYS -nodes -newkey rsa:$KEYBIT -out $CERTPATH/$CERTNAME.pem -keyout $CERTPATH/$CERTNAME.pem chmod 600 $CERTPATH/$CERTNAME.pem } case $1 in -h|help|--help) usage exit 0 ;; esac until [ -z "$1" ] # Until all parameters used up . . . do case $1 in --force|-f|-force) FORCE="1" shift ;; --days|-d|-days) DAYS=$2 shift shift ;; --path|-p|-path) CERTPATH=$2 shift shift ;; --name|-n|-name) CERTNAME=$2 shift shift ;; --bit|-n|-bit) KEYBIT=$2 shift shift ;; *) usage exit 0 ;; esac done createcert




Here is the file.

apache2-ssl-certificate.tar.gz


MD5SUM: 6fb69eb0d63a683e73461f4f682e13e5


You could get the project from github.


The source is now on Github: https://github.com/wanleung/self-signed-certificate-generator