Khmer unicode for adobe photoshop cs6 and adobe Illustrator

How to write Khmer Unicode Font For Adobe Photoshop CS6

Khmer Unicode Font For Adobe Photoshop CS6

Edit -> Preference -> Type រួច​ជ្រើស​យក Middle Eastern ជំនួស​ឱ្យ East Asian វិញជា​ការ​ស្រេច​។

សូមមើល VIDEO ខាងក្រោមនេះ

Configuring NAT

You can use the Routing and Remote Access management console to configure a number of settings for the NAT.

To access the various configuration options for NAT,

1. Click Start, Administrative Tools, and then click Routing and Remote Access to open the Routing and Remote Access management console.

2. In the left console tree, expand Routing And Remote Access, the Server, and then expand IP Routing.

3. Select NAT/Basic Firewall.

4. Click the Action menu, and then select Properties OR, right-click NAT/Basic Firewall and select Properties from the shortcut menu

5. The Properties dialog box contains four tabs which can be used to configure settings for the NAT service.

The various settings available on the different tabs within the Properties dialog box are:

• NAT /Basic Firewall tab: The configurations which you can perform on the NAT /Basic Firewall tab are:

• Enable NAT/disable NAT.

• Enable a basic firewall to prevent unauthorized users from accessing resources on the private network.

• Configure inbound filters by clicking the Inbound Filters button.

li> Configure outbound filters by clicking the Outbound Filters button.

• Address Pool tab: The configurations which you can perform on the Address Pool tab are:

• Specify the Internet addresses which the NAT server will use. A minimum of one Internet address has to be specified.

• You can configure external address to internal address mappings by clicking the Reservations button.

• Services and Ports tab: The configurations which you can perform on the Services and Ports are:

• Specify services which Internet users are allowed to access.

• Configure the internal client computers which external packets are forwarded to.

• ICMP tab: On this tab, you can enable a number of diagnostic packets types which are necessary for the NAT server to recognize and respond to PING or Traceroute.

How to install the NAT service using the Routing And Remote Access Server Setup Wizard

1. Click Start, Administrative Tools, and then click Routing and Remote Access to open the Routing and Remote Access management console.

2. In the left console pane, select the RRAS server that you want to work with.

3. From the Action menu, click Configure and Enable Routing and Remote Access.

4. The Routing and Remote Access Server Setup Wizard initiates.

5. Click Next on the Routing and Remote Access Server Setup Wizard welcome page.

6. On the Configuration page, select the Network Address Translation (NAT) option, and then click Next.

7. On the NAT Internet Connection page, you have to select the connection method which NAT will use to connect to the Internet:

• Use this public interface to connect to the Internet option.

• Create a new demand-dial interface to the Internet option.

8. If you want to enable NAT security, leave the Enable security on the selected interface by setting up Basic Firewall option selected. The option is enabled by default. Click Next.

9. On the Ready to Apply Selections page, click Next.

10. Click Finish.

1

11. Click Yes to start the Routing and Remote Access service.

Maintenance Linux System

(www.ubuntu.com/usn)

ubuntu Security News

1. update & upgrade the System

1. sudo apt-get update
2. sudo apt-get dis-upgrade

When we run dist-upgrade have the Message

The following NEW packages will be automatically installed:

  linux-image-2.6.15-29-server

The following NEW packages will be installed:

  linux-image-2.6.15-29-server

The following packages will be upgraded:

  linux-image-server

1 packages upgraded, 1 newly installed, 0 to remove and 0 not upgraded.

We need Restart the Server when users finish work.

            3. sudo shutdown –r now

2. Check Disk Pace

            -Check disk on the Linux Computer [df –h]

            -Check disk every  week

            -Check for user use

            -sudo quotas /home

3. Check the Log File

            -cd /var/log ls

            -sudo less messages

            -When the message alert all the time this is the problem

            -sudo less syslog

How to Install samba In Ubuntu Server

        1 sudo apt-get install samba

Change samba configuration file

/etc/samba$ sudo vim smb.conf

[global]

       ; use the name of your Samba server instead of [server name] (sv001)

       ; and your own workgroup instead of [Domain name] VTC

        netbios name = sv001

        workgroup = VTC

        encrypt passwords = yes

        server string =

       

       domain master = yes

        local master = yes

        preferred master = yes

        os level = 65

        security = user

        domain logons = yes

        ; logon path tells Samba where to put Windows NT/2000/XP roaming profiles

        logon path = \\%L\profiles\%u

        logon script = %g\logon.bat

        logon drive = H:

        ; logon home is used to specify home directory and

        ; Windows 95/98/Me roaming profiles location

        ; logon home = \\%L\%u\.win_profile\%m

       

        time server = yes

        ; the below works on Red Hat Linux – other OSs might need a different command

        add user script = /usr/sbin/useradd –d /dev/null –g users –s /bin/false –m %u

       

[netlogon]

        path = /usr/local/samba/lib/netlogon

        writable = no

        browsable = no

       

[profiles]

        ; you might wish to use a different directory for your

        ; Windows NT/2000/XP roaming profiles

        path = /home/samba-ntprof

        browsable = no

        writable = yes

        create mask = 0600

        directory mask = 0700

[homes]

        read only = no

        browsable = no

        guest ok = no

        map archive = yes

[transfer]

       path = /home/transfer

       browsable = yes

       guest ok = no

       writable = yes

       create mask = 0644

       directory mask = 0755

[office-docs]

      path = /home/office-docs

      browsable = yes

      guest ok = no

      writable = yes

      create mask = 0660

      directory mask = 0770

        force group = office

Command Checker Samba Configuration:  

testparm

Create 3 Groups (students, teachers, office)

        sudo groupadd students

        sudo groupadd teachers

        sudo groupadd office

Creating Directory on the Samba Server

The [netlogon] and [profiles] shares defined in our new smb.conf file reference directories on the Samba Server, and it is necessary to create those directories with the proper permissions:

        # mkdir – p /usr/local/samba/lib/netlogon (-p create sub folders Like mkdir /usr/local/treat/tyer/)

        # chmod 775 /usr/local/samba/lib/netlogon

        # mkdir /home/samba-ntprof

        # chmod 777 /home/samba-ntprof

        # mkdir /home/transfer

        # chmod 755 /home/transfer

        # mkdir /home/office-docs

Change the group owner (office-docs)

       # chgrp office /home/office-docs

       # chmod 770 /home/office-docs

Restart the Samba Daemon

        # /etc/init.d/samba restart

Create folders 3 in /usr/local/samba/lib/netlogon: (teachers, students, office)

Create logon file in the each folder above:

       # /usr/local/samba/lib/netlogon$ (teachers, students, office)

       sudo vim logon.bat

In folder teachers

        net time \\sv001 /set /yes

        net use /delete T:

        net use T: \\sv001\transfer

        net use /delete O:

        net use O: \\sv001\office-docs

Before Save or Close type command :se ff=dos

In folder office

        net time \\sv001 /set /yes

        net use /delete T:

        net use T: \\sv001\transfer

        net use /delete O:

        net use O: \\sv001\office-docs

Before Save or Close type command :se ff=dos

In folder students

        net time \\sv001 /set /yes

        net use /delete T:

        net use T: \\sv001\transfer

Before Save or Close type command :se ff=dos

Change Samba root password

        sudo smbpasswd -a root

Synchronize time

        sudo ntpdate swisstime.ethz.ch
Create script file backuppasswdfiles.sh (/home/vtc)

#!/bin/sh
rm –f passwd
cp /etc/passwd .
rm –f shadow
cp /etc/shadow .
rm –f group
cp /etc/group .
rm –f smbpasswd
cp /etc/samba/smbpasswd .

Create script file createsmbuser.sh in vtc user (/home/vtc)

#!/bin/sh
# (-s /bin/false we don't allow user to logon to server)
useradd –s /bin/false –g $2 –G $3 –m $1
# (R: recursive)
chmod -R 700 /home/$1
# (force: don't show warnings)
# (.??* we remove any file with 3 or more letters)
rm –Rf /home/$1/.??*
# (-a: add smbuser)
smbpasswd –a $1
# (-p: protoname or template)
edquota –p test.user $1
# backup password files automatically
./backuppasswdfiles.sh

Assign execution rights to script

        chmod 700 backuppasswdfiles.sh

   chmod 700 createsmbuser.sh

Copy Default User

        sudo cp –R Default\ User/ /usr/local/samba/lib/netlogon

Create the new users and then

        sudo ./createsmbuser.sh <username> <maingroup> <additional groups>

        eg. # sudo ./createsmbuser.sh test.user office users,internet

Samba Users

 Assign the Computer for Client to login to the Domain Server

        sudo useradd –s /bin/false –d /dev/null –g users [computer name$]

Install Quota

        use quota documentation (Install Quota Share Limit Space.doc)

Join Windows Computer to Domain

Create addgroup.sh and delgroup.sh script

1.    cd

2.    vim addgroup.sh
#!/bin/sh

groupnr=`awk -F: '{if ($1 == groupstr) print $3}' groupstr=$2 < /etc/group`

userlist=`awk -F: '{if ($4 == groupnr) print $1}' groupnr=$groupnr < /etc/passwd`

for user in $userlist

do

              adduser $user $1

done

./backuppasswdfiles.sh

3.    vim delgroup.sh

#!/bin/sh

groupnr=`awk -F: '{if ($1 == groupstr) print $3}' groupstr=$2 < /etc/group`

userlist=`awk -F: '{if ($4 == groupnr) print $1}' groupnr=$groupnr < /etc/passwd`

for user in $userlist

do

              deluser $user $1

done

./backuppasswdfiles.sh

4.    chmod +x addgroup.sh delgroup.sh

5.    sudo ./addgroup.sh <add this group> <to members in this maingroup>

sudo ./addgroup.sh internet teachers

6.    sudo ./delgroup.sh <remove this group> <from members in this maingroup>

sudo ./delgroup.sh internet teachers

NOTE:

        id <username> (Show group and membership)

        smbstatus (Samba Status)

Delete user and password

        sudo userdel –r <username>

        sudo vim /etc/samba/smbpasswd to delete user & password

        sudo rm –r /home/samba-ntprof/user profile

Install a printer share through logon.bat

RUNDLL32 PRINTUI.DLL,PrintUIEntry /in /q /n\\computername\printername

What to do after hard disk crash and reinstallation of Linux

sudo cp /mnt/backup/files/%date%/tree/vtc/group /etc/group

sudo cp /mnt/backup/files/%date%/tree/vtc/passwd /etc/passwd

sudo cp /mnt/backup/files/%date%/tree/vtc/shadow /etc/shadow

sudo cp /mnt/backup/files/%date%/tree/vtc/smbpasswd /etc/samba/smbpasswd

sudo shutdown –r now

sudo cp –R /mnt/backup/files/%date%/tree /home

How to Install squid in Ubuntu Servier

            1 sudo apt-get install squid

Change configuration

            2 sudo vim /etc/squid/squid.conf

# Squid normally listens to port 3128 (assign IP address)
http_port 192.168.1.5:3128

#Default: (assign 20% from your RAM) (calculation: xRAM*20/100)
cache_mem 38 MB

#Default: (maximal download package size on your hard disk)
maximum_object_size 16384 KB

#Default: (maximal download package size on your RAM)
maximum_object_size_in_memory 32 KB

#Default: (get free hard disk space policy)
cache_replacement_policy heap LFUDA

#Default: (get free memory space policy)
memory_replacement_policy heap LFUDA

#Default: (assign 80% of your /var partition in MBs) (calculation: xGB*1024*80/100)
cache_dir ufs /var/spool/squid 6062 16 256

#Default: (hide internal IP address)
forwarded_for off

#Default: (turn off squid information in http packages)
via off

#Default:
# none: (use visible_hostname instead of none)
visible_hostname proxy

Restart Squid

            2 sudo /etc/init.d/squid restart

Change configuration

Allow IP address:

3 sudo vim /etc/squid/squid.conf

# Example rule allowing access from your local network.

acl office src 192.168.1.41-192.168.1.44

acl class src 192.168.1.11-192.168.1.31

acl laptop src 192.168.1.59

http_access allow laptop

http_access allow office

http_access allow class

Allow Samba users:

            3 sudo apt-get install smbclient

            4 sudo vim /etc/squid/squid.conf

find following lines and uncomment them:
auth_param basic children 5
auth_param basic realm Squid proxy-caching web server
auth_param basic credentialsttl 2 hours

Add following line and change DOMAINNAME to your domain:
auth_param basic program /usr/lib/squid/smb_auth -W DOMAINNAME

# Example rule allowing access from your local network.
acl domainusers proxy_auth REQUIRED
http_access allow localhost
http_access allow domainusers

            4 sudo /etc/init.d/squid restart

On samba server

            create a file /usr/local/samba/lib/netlogon/proxyauth and add following line to file

                        allow

            change proxyauth to group internet: sudo chgrp internet proxyauth

            change permission of proxyauth: sudo chmod 640 proxyauth

            If you want to allow all users to connect to internet you just write

                        chgrp users proxyauth

            If you only want to allow members of the group internet to connect to the Internet you just write

                        chgrp internet proxyauth

Test proxy

5 use Firefox on a other machine and try to connect to http://checker.samair.ru/

Install squidguard

6 sudo apt-get install squidguard apache2

Enable squidguard

7 sudo vim /etc/squid/squid.conf

jump to the end of the file and add following lines:

# Tag redirect program

redirect_program /usr/bin/squidGuard -c /etc/squid/squidGuard.conf

SquidGuard configuration

8 sudo vim /etc/squid/squidGuard.conf

#

# CONFIG FILE FOR SQUIDGUARD

#

dbhome /var/lib/squidguard/db

logdir /var/log/squid

# DESTINATION CLASSES:

#

dest adv {

     domainlist adv/domains

     urllist adv/urls

}

dest aggressive {

     domainlist aggressive/domains

     urllist aggressive/urls

}

dest drugs {

     domainlist drugs/domains

     urllist drugs/urls

}

dest gamble {

     domainlist gamble/domains

     urllist gamble/urls

}

dest porn {

     domainlist porn/domains

     urllist porn/urls

}

dest spyware {

     domainlist spyware/domains

     urllist spyware/urls

}

dest violence {

     domainlist violence/domains

     urllist violence/urls

}

acl {

     default {

           pass !adv !aggressive !drugs !gamble !porn !spyware !violence

           redirect http://192.168.1.5/cgi-bin/squidGuard.cgi?clientaddr=%a&clientname=%n&clientident=%i&srcclass=%s&targetclass=%t&url=%u

     }

}

Setup blacklist script updater

9 wget -c http://squidguard.shalla.de/Downloads/shalla_update.sh

10 vim shalla_update.sh

squidGuardpath=”/usr/bin/squidGuard”

squidpath=”/usr/sbin/squid”

httpget=”/usr/bin/wget”

tarpath=”/bin/tar”

chownpath=”/bin/chown”

dbhome=”/var/lib/squidguard/db”

squidGuardowner=”proxy.proxy”

Instead of $squidpath –k reconfigure:

/etc/init.d/squid restart

11 chmod +x shalla_update.sh

12 sudo mv shalla_update.sh /etc/cron.weekly/
13 sudo /etc/cron.weekly/shalla_update.sh

Create Permission Denied Website

14 sudo mkdir /usr/lib/cgi-bin

15 sudo cp /usr/share/doc/squidguard/examples/squidGuard.cgi.gz /usr/lib/cgi-bin/

16 sudo gunzip /usr/lib/cgi-bin/squidGuard.cgi.gz

17 sudo chmod +x /usr/lib/cgi-bin/squidGuard.cgi

18 sudo mkdir /var/www/images

19 Create following pictures with Photo Shop

                        1 logo.jpg

                        2 white.jpg

sudo cp logo.jpg /var/www/images

sudo cp white.jpg /var/www/images

20 sudo vim /usr/lib/cgi-bin/squidGuard.cgi

            change: $image = "/images/blocked.gif";

            to: $image = "/images/white.jpg";

change: $redirect =”http://admin.your-domain/images/blocked.gif”;

to: $redirect =”http://192.168.1.5/images/white.jpg”;

            change: $proxymaster =”operator\@your-domain”;

            to: $proxymaster =”wec_vtc\@online.com.kh”;

            change: “http://info.your-domain/images/eto.small.gif”;

to: “http://192.168.1.5/images/logo.jpg”;

    

     change: “http://www.your-domain/”;

     to: “http://www.wec-ap.org/”;

Restart Squid

            21 sudo /etc/init.d/squid restart

Test proxy

22 use Firefox on a other machine and try to connect to http://www.drugs.com

Note:

 if you have problems with squidGuard: try to change permission from dbhome and start optimizing db again: (sudo –u proxy = run command with proxy rights)

            sudo chown proxy.proxy –R /var/lib/squidguard/db

            sudo –u proxy squidGuard –C all