Normally, I have installed the VirtualBox in my laptop.. So today, I just download a Ubuntu OS and install it!!

I tried to use a Ubuntu desktop 11.04 first but it was very slow (lacking).. then I decided to re-install Ubuntu OS again by using server version .. Yes, it was better.. !!! ..

I don’t know why it is very slow.. I dedicated 1.5GB of memory .. You know, I’m very impressive the Ubuntu version 9.10.. anyway, the change is normal!!

OK, just come back to main objective of this article…I NEED TO SSH to my guest server. But I can’t because the the type of network interface is NAT..

Finally I got a solution for this problem by using port-forwarding on VirtualBox feature.

First you need to install OpenSSH on your server.

$ sudo apt-get install ssh

Second, go to the network interface.

Then click on “Network Adapters…” and fill name of rule, protocol … Please see in below picture.

Then ssh to the guest server via IP 127.0.0.1 port 22 …

Just try to connect your server again!!!

• Full internationalisation with UTF8. (อ่ะแน่นอน support ภาษาไทย)
• Cross-platform: Linux (gcc), FreeBSD (gcc), NetBSD (gcc), Solaris (gcc, Forte), Win32 (gcc, MSVC++ .Net 2003, 2005, 2008), MacOS X (gcc), others (เขียนทีเดียว..เสียวได้หลายครั้ง)

กลับมาที่การติดตั้งเพื่อใช้งาน

1. ลง gtkmm ก่อน

sudo apt-get install libgtkmm-2.4-dev

2. ต้องทำการ Add directory ที่อยู่ของ Gtkmm เข้าไปยัง Eclipse โดย directory ที่ต้อง Add เพิ่มมีดังนี้ gtkmm, glibmm และ gdkmm ซึ่งวิธี Add ก็ให้ไปที่

Eclipse -> Project -> Properties -> C/C++ Build -> Setting -> GCC C++ Compiler -> Directories

หลังจากนั้นก็ คลิกปุ่ม + (Add) โดย Directory ทั้ง 3 จะอยู่ที่ /usr/include

Picture from : kapo-cpp.blogspot.com

3. ยังไม่ต้องออกจากหน้าในข้อ 2 (อย่าลืม Apply) ให้กระโดดไปที่ Miscellaneous ด้านซ้ายจะมีช่อง Other flags ให้กรอกเพิ่ม

`pkg-config --cflags gtkmm-2.4`

Picture from : kapo-cpp.blogspot.com

4. ทำเหมือนข้อ 3 แต่ไปที่ GCC C++ Linker / Miscellaneous มันจะมีชื่อ Linker flags ให้กรอก เหมือนในข้อ 3

`pkg-config --cflags gtkmm-2.4`

Picture from : kapo-cpp.blogspot.com

5. หลังจากก็ลองตัวอย่างกันครับ..ให้ไป Copy code จาก เว็บนี้ แล้วลอง Run ดูครับ..ได้แน่นอน

6. ผลลัพธ์ที่ได้

Original link

1. http://kapo-cpp.blogspot.com/2007/12/let-eclipsecdt-autocomplete-your-gtkmm.html
2. http://kapo-cpp.blogspot.com/2007/02/gtkmm-and-eclipse.html

I use Ubuntu9.10, I’m very surprise why I cannot find /etc/X11/xorg.conf. Normally, user can edit the resolution by editing some part in this file. There is always at least one solution to solve the problem. Of cause, Google can help…

From this link : http://ubuntuforums.org/showthread.php?p=8595940

I need to change resolution on Ubuntu from something to 1280×800, what I do?

1. Check display device in Ubuntu by

$ xrandr
Screen 0: minimum 64 x 64, current 1280 x 800, maximum 32000 x 32000
VBOX1 connected 1280x800+0+0 0mm x 0mm
   1360x768       59.8
   1152x864       60.0
   1024x768       60.0
   800x600        60.3
   640x480        59.9

2. Then type :

$ sudo cvt 1280 800
# 1280x800 59.81 Hz (CVT 1.02MA) hsync: 49.70 kHz; pclk: 83.50 MHz
Modeline "1280x800_60.00"   83.50  1280 1352 1480 1680  800 803 809 831 -hsync +vsync

3. Create a new mode :

$ sudo xrandr --newmode "1280x800_60.00"   83.50  1280 1352 1480 1680  800 803 809 831 -hsync +vsync

4. Add new mode:

$ sudo xrandr --addmode VBOX1 1280x800_60.00

5. Enable new mode:

$ sudo xrandr --output VBOX1 --mode 1280x800_60.00

6. Ohh my god, you need to put command from number 3 – 5 into script.

$ sudo vi /usr/local/bin/increase_resolution.sh
#!/bin/bash
xrandr --newmode "1280x800_60.00"   83.50  1280 1352 1480 1680  800 803 809 831 -hsync +vsync
xrandr --addmode VBOX1 1280x800_60.00
xrandr --output VBOX1 --mode 1280x800_60.00

7. Put this script into start up script:

$ sudo vi /usr/local.rc
:
:
# By default this script does nothing.
 
/usr/local/bin/increase_resolution.sh
 
exit 0

1. Add this line into /etc/vmware/config at last line.

1

xkeymap.nokeycodeMap = true

2. Restart VMWare service.

1

$ sudo /etc/init.d/vmware restart

1. Write your script for start a service

#!/bin/bash
echo "Start my service!!!";
cd /path/of/my/script/
./run_my_script.sh

2. Change a permission file to execute

$ cd /path/of/my/script/
$ sudo chmod +x run_my_script.sh

3. Create a symbolic link file into /etc/init.d/

$ sudo ln -s /path/of/my/script/run_my_script.sh /etc/init.d/run_my_script.sh

4. Add this script into start up time

$ sudo update-rc.d run_my_script.sh defaults
update-rc.d: warning: /etc/init.d/run_my_script.sh missing LSB style header
 Adding system startup for /etc/init.d/run_my_script.sh ...
   /etc/rc0.d/K20run_my_script.sh -> ../init.d/run_my_script.sh
   /etc/rc1.d/K20run_my_script.sh -> ../init.d/run_my_script.sh
   /etc/rc6.d/K20run_my_script.sh -> ../init.d/run_my_script.sh
   /etc/rc2.d/S20run_my_script.sh -> ../init.d/run_my_script.sh
   /etc/rc3.d/S20run_my_script.sh -> ../init.d/run_my_script.sh
   /etc/rc4.d/S20run_my_script.sh -> ../init.d/run_my_script.sh
   /etc/rc5.d/S20run_my_script.sh -> ../init.d/run_my_script.sh

5. Test by restart your server and check this process by ps -ef | grep run_my_script.sh

$ ps -ef | grep run_my_script.sh

Thanks for original : http://www.ubuntu-howto.info/howto/how-to-execute-a-command-program-or-script-at-startup-init-mini-howto

So if you would like to install VMWare ESXi into your server, you should check your hardware which is supported by VMWare ESXi from this link before :
http://www.vm-help.com/esx/esx3i/Hardware_support.php

I hope, it will support my server sooner .

Anyway, I came back to my original solution that is installation the VMWare server.

After I installed an Ubuntu Server 8.10 completely, I would like to install a VMWare server on this server. And I found original solution from

http://kuparinen.org/martti/comp/ubuntu/en/server.html

These are my steps :

1.   Install some importance software.

   # sudo apt-get install openssh-client
   # sudo apt-get install wget
   # sudo apt-get install chkrootkit rkhunter
   # sudo chkrootkit
   # rkhunter --checkall

2. Download the VMWare server from http://www.vmware.com/download/server/
3. Download the VMWare-Update from http://www.insecure.ws/warehouse/vmware-update-2.6.27-5.5.7-2.tar.gz by wget command

   # wget -c http://www.insecure.ws/warehouse/vmware-update-2.6.27-5.5.7-2.tar.gz

4. Install the VMWare server

   # sudo aptitude install xinetd
   # sudo aptitude install build-essential
   # sudo aptitude install linux-headers-`uname -r`
   # sudo aptitude install libx11-6 libx11-dev libxtst6 xlibs-dev libxrender-dev
   # tar xvfz VMware-server-1.0.X-XXXX.tar.gz
   # cd vmware-server-distrib
   # sudo ./vmware-install.pl

5. If you cannot compile module, you can compile by vmware-update

   # tar xvfz vmware-update-2.6.27-5.5.7-2.tar.gz
   # cd vmware-update; 
   # sudo ./runme.pl

 If you find some problem about installation, please read this post before.

Previously

Condition :

1. I would like to use sub-domain for trac service that is trac.aoddy.com
2. Trac service can support multiple projects such as trac.aoddy.com/Project1, trac.aoddy.com/Project2
3. Trac service supports SVN service too.

Softwares :

1. enscript
2. libapache2-mod-python
3. python-docutils
4. trac
5. db4.3-util
6. libapache2-svn
7. subversion-tools

You can install software by

1

$ sudo apt-get install enscript libapache2-mod-python python-docutils trac db4.3-util libapache2-svn subversion-tools

Install & Configurations :

1. Create SVN directory such as :

   1	$ sudo mkdir /svn

2. Set SVN directory to repository.

   1	$ sudo svnadmin create /svn

3. Create a user account so as to security policy.

   1	$ sudo htpasswd 2 -cm /etc/apach2/dav_svn.passwd YOUR-ACCOUNT

4. Create TRAC directory such as :

   1	$ sudo mkdir /trac

5. Change owner of TRAC directory to www-data :

   1	$ sudo chown -R www-data:www-data /trac

6. Create a configuration file of TRAC in apache

   2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

   $ sudo vi /etc/apache2/site-available/trac.aoddy.com <VirtualHost * > ServerName trac.aoddy.com DocumentRoot /trac <Location /> SetHandler mod_python PythonInterpreter main_interpreter PythonOption TracEnvParentDir /var/lib/trac PythonOption TracUriRoot / </Location> <LocationMatch "/[^/]+/login"> AuthType Basic AuthName "Trac" AuthUserFile /etc/apache2/dav_svn.passwd Require valid-user </LocationMatch> Alias /svn /svn <Location /svn/> DAV svn SVNParentPath /svn SVNListParentPath On AuthType Basic AuthName "Subversion Repository" AuthUserFile /etc/apache2/dav_svn.passwd AuthzSVNAccessFile /etc/apache2/authz_svn.access Require valid-user </Location> ErrorLog /var/log/apache2/trac.aoddy.com/error.log CustomLog /var/log/apache2/trac.aoddy.com/access.log common </VirtualHost>

7. Create a directory for keep error log.

   1	$ sudo mkdir -p /var/log/apache2/trac.aoddy.com/

8. Add this site into apache service.

   1 2	$ sudo a2ensite trac.aoddy.com $ sudo /etc/init.d/apach2 restart

9. Sometime you need to re-configure in this file, I recommend you should use these commands.

   1 2 3

   $ sudo a2dissite trac.aoddy.com $ sudo a2ensite trac.aoddy.com $ sudo /etc/init.d/apach2 restart

10. Test by open an URL http://trac.aoddy.com/

Create SVN

You can use this script for create a SVN environment.

1
2
3
4
5
6

#!/bin/bash
PROJECTNAME=$1
mkdir -p /tmp/${PROJECTNAME}/branches /tmp/${PROJECTNAME}/tags/ /tmp/${PROJECTNAME}/trunks
svnadmin create /svn/${PROJECTNAME}
svn import /tmp/${PROJECTNAME} file:///svn/${PROJECTNAME} -m "initial import"
sudo rm -rf /tmp/${PROJECTNAME}

Don’t remember to change mode of this script to execute file and run this script by root permission.

Create TRAC

1

$ sudo trac-admin /trac/YOUR-PROJECT-NAME initenv

After you run this command you should find some question about your project

1
2
3
4

the project name (YOUR-PROJECT-NAME)
use the default database connection string (sqlite:db/trac.db)
the path to svn repository (/svn/YOUR-PROJECT-NAME)
use the default Trac templates directory (/usr/share/trac/templates)

Change permission of this project so as to support apache service

1

$ sudo chown -R www-data /trac/YOUR-PROJECT-NAME

Woowww, you should find your new project on trac service at http://trac.aoddy.com/YOUR-PROJECT-NAME

aptitude show NAME-OF-PACKAGE

It’s very easy.

Perfect !! 555

First step, I think I should know which IP Address is using a lot of internet bandwidth and second step I should know who is owner that IP Address.

The answer of the first step , I will use ntop software to answer this question. For the second step, I will fix all MAC Address of Laptop’s wireless card with IP Address on a DHCP Server. And this is my solutions :

1. Get a MAC Address from Client’s laptop such as  A1:B2:C3:A1:B2:C3

2. Add the MAC Address into the file /etc/dhcpd.conf such as

ddns-update-style interim
ignore client-updates
 
subnet 192.168.1.0 netmask 255.255.255.0 {
 
   # The range of IP addresses the server
   # will issue to DHCP enabled PC clients
   # booting up on the network
 
   range 192.168.1.201 192.168.1.220;
 
   # Set the amount of time in seconds that
   # a client may keep the IP address
 
   default-lease-time 86400;
   max-lease-time 86400;
 
   # Set the default gateway to be used by
   # the PC clients
 
   option routers 192.168.1.1;
   # Don't forward DHCP requests from this
   # NIC interface to any other NIC
   # interfaces
 
   option ip-forwarding off;
 
   # Set the broadcast address and subnet mask
   # to be used by the DHCP clients
 
   option broadcast-address 192.168.1.255;
   option subnet-mask 255.255.255.0;
 
   # Set the NTP server to be used by the
   # DHCP clients
 
   option ntp-servers 192.168.1.100;
 
   # Set the DNS server to be used by the
   # DHCP clients
 
   option domain-name-servers 192.168.1.100;
 
   # If you specify a WINS server for your Windows clients,
   # you need to include the following option in the dhcpd.conf file:
 
   option netbios-name-servers 192.168.1.100;
 
   # You can also assign specific IP addresses based on the clients'
   # ethernet MAC address as follows (Host's name is "laser-printer":
 
   host user-one {
      hardware ethernet A1:B2:C3:A1:B2:C3;
      fixed-address 192.168.1.222;
   }
}
#
# List an unused interface here
#
subnet 192.168.2.0 netmask 255.255.255.0 {
}

3. Check your configuration file is correct :

# /usr/sbin/dhcpd -t -cf /etc/dhcpd.conf

4. Restart your DHCP Service :

# service dhcpd restart

5. Set DHCP relay in your CISCO switch points to your DHCP Server (Assume your IP Address of DHCP Server is 192.168.1.201)

$ conf t
$ conf t > interface vlan 10
$ conf t > ip address 192.168.1.1 255.255.255.0
$ conf t > no ip directed-broadcast
$ conf t > ip helper-address 192.168.1.201
$ conf t > end

6. You can check all IP Addresses which receive from DHCP Server in file /var/lib/dhcp/dhcpd.leases

References :
1. http://www.redhatmagazine.com/2008/08/05/linux-dhcp-server-static-ips-are-gone-in-60-seconds/
2. http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch08_:_Configuring_the_DHCP_Server
3. http://www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a00800f0804.shtml

Topology

Detail
จากรูป ผมก็จะมี Host Server อยู่ 1 ตัวมี IP Address เป็น 192.168.0.2 และมี Guest อีกหนึ่ง Server มี IP Address เป็น 192.168.0.3 โดย Interface ใน Guest จะทำเป็น Bridge Interface กับเครื่อง Host Server

จุดประสงค์
ผมต้องการ ที่จะ Remote ไปยังเครื่อง Guest (192.168.0.3) ผ่านทาง VNC ที่อยู่บน Host Server (192.168.0.2)

การ Config
1. แก้ไขให้ Guest virtual machine ยอมให้ใช้งาน ผ่าน VCN โดยเพิ่ม คำสั่งด้านล่างเข้าไปที่ไฟล์คอนฟิกของเครื่อง Guest (.vmx)

:
RemoteDisplay.vnc.enabled = TRUE
:

2. ก็ยังคงแก้ไขที่ไฟล์เดิมของ Guest (.vmx) โดยเราต้องการที่จะบอกว่าเวลาคุณจะ Remote เข้ามา คุณต้องใช้ Port หมายเลขใด แล้วเวลา vncviewer เข้ามาจะใช้ Password ใด..เพื่อเข้ามาใช้งาน ก็แค่เพิ่ม 2 บรรทัด นี้เข้าไป

:
RemoteDisplay.vnc.port = “5901”
RemoteDisplay.vnc.password = “Your-Password”

การ Remote เข้ามาด้วย vncviewer
โดยใช้คำสั่งดังนี้ (อันนี้ที่เครื่อง Client นะครับ)

$ vncviewer 192.168.0.2:1

ข้อสังเกต
เวลาเรา vncviewer เข้ามาจะใช้ IP ผ่าน 192.168.0.2 ซึ่งเป็นเครื่อง VMware Server นะครับ