cachak » Linux

Mengganti UUID Virtual Disk dari VirtualBox

cachak — Sat, 11 Jul 2009 01:48:08 +0000

mengcopy virtual disk dari virtualbox sangat berguna jika kita ingin menggandakan os yang telah kita install sehingga kita tidak perlu melakukan install lagi.
misalnya kita install centos dengan minumum sistem setelah itu di upgrade. Hasil install ini dapat kita gunakan sebagai master dari virtual disk virtualbox nya yang dapat kita copy untuk keperluan yang lain misalnya kita mau mencoba-coba apa yang ada dilinux. Nah jika kita langsung mencopy dengan menggunakan perintah cp centos53.vdi centos-ZSCE.vdi maka waktu kita menambahkan ke dalam virtual manager dari virtual box akan muncul gambar dibawah ini:

nah untuk mengganti UUID dari virtual disk yang telah kita copy maka dapat di lakukan perintah berikut ini :
[cachak@cachak linux]$ VBoxManage internalcommands setvdiuuid centos-ZSCE.vdi VirtualBox Command Line Management Interface Version 2.2.2 (C) 2005-2009 Sun Microsystems, Inc. All rights reserved.

UUID changed to: e6b737e4-25e9-47b1-b6fe-4c050b396d85 [cachak@cachak linux]$

sehingga centos-ZSCE.vdi tadi berubah id nya menjadi e6b737e4-25e9-47b1-b6fe-4c050b396d85

atau langsung dengan menggunakan perintah internalnya virtual box yaitu :

[cachak@cachak linux]$ VBoxManage clonevdi Master.vdi Clone.vdi

Install dan Konfigurasi phpMyAdmin

cachak — Wed, 24 Jun 2009 06:56:33 +0000

Tutorial untuk install phpMyAdmin dari rpm dan mengkonfigurasi nya sehingga bisa di akses http://host/phpMyAdmin/

1.Install paket phpMyAdmin


[root@cachak-dev ~]# yum install phpMyAdmin
Loaded plugins: fastestmirror
Repository epel is listed more than once in the configuration
Determining fastest mirrors
epel                                                      | 2.1 kB     00:00
primary.sqlite.bz2                                        | 2.6 MB     00:27
myindo                                                    |  951 B     00:00
primary.xml.gz                                            | 3.4 kB     00:00
myindo                                                         2/2
base                                                      | 1.1 kB     00:00
primary.xml.gz                                            | 878 kB     00:13
base                                                           2508/2508
updates                                                   |  951 B     00:00
primary.xml.gz                                            | 185 kB     00:02
updates                                                        287/287
Setting up Install Process
Parsing package install arguments
Resolving Dependencies
--> Running transaction check
---> Package phpMyAdmin.noarch 0:2.11.9.5-1.el5 set to be updated
--> Processing Dependency: php-mysql >= 4.1.0 for package: phpMyAdmin
--> Processing Dependency: php >= 4.1.0 for package: phpMyAdmin
--> Processing Dependency: php-mbstring >= 4.1.0 for package: phpMyAdmin
--> Processing Dependency: webserver for package: phpMyAdmin
--> Running transaction check
---> Package php-mbstring.i386 0:5.1.6-23.2.el5_3 set to be updated
--> Processing Dependency: php-common = 5.1.6-23.2.el5_3 for package: php-mbstring
---> Package php-mysql.i386 0:5.1.6-23.2.el5_3 set to be updated
--> Processing Dependency: php-pdo for package: php-mysql
---> Package php.i386 0:5.1.6-23.2.el5_3 set to be updated
--> Processing Dependency: php-cli = 5.1.6-23.2.el5_3 for package: php
--> Processing Dependency: libcurl.so.3 for package: php
--> Processing Dependency: libaspell.so.15 for package: php
--> Processing Dependency: libgmp.so.3 for package: php
--> Processing Dependency: libidn.so.11 for package: php
--> Processing Dependency: libpspell.so.15 for package: php
---> Package httpd.i386 0:2.2.3-22.el5.centos.1 set to be updated
filelists.sqlite.bz2                                      | 4.0 MB     00:43
filelists.xml.gz                                          | 1.4 kB     00:00
filelists.xml.gz                                          | 2.8 MB     00:29
filelists.xml.gz                                          | 1.3 MB     00:13
--> Processing Dependency: libaprutil-1.so.0 for package: httpd
--> Processing Dependency: libapr-1.so.0 for package: httpd
--> Processing Dependency: /etc/mime.types for package: httpd
--> Running transaction check
---> Package libidn.i386 0:0.6.5-1.1 set to be updated
---> Package php-pdo.i386 0:5.1.6-23.2.el5_3 set to be updated
---> Package curl.i386 0:7.15.5-2.1.el5_3.4 set to be updated
---> Package apr-util.i386 0:1.2.7-7.el5_3.1 set to be updated
---> Package mailcap.noarch 0:2.1.23-1.fc6 set to be updated
---> Package php-cli.i386 0:5.1.6-23.2.el5_3 set to be updated
---> Package php-common.i386 0:5.1.6-23.2.el5_3 set to be updated
---> Package apr.i386 0:1.2.7-11 set to be updated
---> Package gmp.i386 0:4.1.4-10.el5 set to be updated
---> Package aspell.i386 12:0.60.3-7.1 set to be updated
--> Processing Dependency: aspell-en for package: aspell
--> Running transaction check
---> Package aspell-en.i386 50:6.0-2.1 set to be updated
--> Finished Dependency Resolution

Dependencies Resolved

=================================================================================
 Package            Arch         Version                     Repository     Size
=================================================================================
Installing:
 phpMyAdmin         noarch       2.11.9.5-1.el5              epel          4.2 M
Installing for dependencies:
 apr                i386         1.2.7-11                    base          122 k
 apr-util           i386         1.2.7-7.el5_3.1             updates        76 k
 aspell             i386         12:0.60.3-7.1               base          936 k
 aspell-en          i386         50:6.0-2.1                  base          1.6 M
 curl               i386         7.15.5-2.1.el5_3.4          updates       232 k
 gmp                i386         4.1.4-10.el5                base          664 k
 httpd              i386         2.2.3-22.el5.centos.1       updates       1.2 M
 libidn             i386         0.6.5-1.1                   base          194 k
 mailcap            noarch       2.1.23-1.fc6                base           14 k
 php                i386         5.1.6-23.2.el5_3            updates       1.1 M
 php-cli            i386         5.1.6-23.2.el5_3            updates       2.1 M
 php-common         i386         5.1.6-23.2.el5_3            updates       151 k
 php-mbstring       i386         5.1.6-23.2.el5_3            updates       994 k
 php-mysql          i386         5.1.6-23.2.el5_3            updates        85 k
 php-pdo            i386         5.1.6-23.2.el5_3            updates        64 k

Transaction Summary
=================================================================================
Install     16 Package(s)
Update       0 Package(s)
Remove       0 Package(s)         

Total download size: 14 M
Is this ok [y/N]: y
Downloading Packages:
(1/16): mailcap-2.1.23-1.fc6.noarch.rpm                   |  14 kB     00:00
(2/16): php-pdo-5.1.6-23.2.el5_3.i386.rpm                 |  64 kB     00:00
(3/16): apr-util-1.2.7-7.el5_3.1.i386.rpm                 |  76 kB     00:00
(4/16): php-mysql-5.1.6-23.2.el5_3.i386.rpm               |  85 kB     00:00
(5/16): apr-1.2.7-11.i386.rpm                             | 122 kB     00:04
(6/16): php-common-5.1.6-23.2.el5_3.i386.rpm              | 151 kB     00:01
(7/16): libidn-0.6.5-1.1.i386.rpm                         | 194 kB     00:01
(8/16): curl-7.15.5-2.1.el5_3.4.i386.rpm                  | 232 kB     00:02
(9/16): gmp-4.1.4-10.el5.i386.rpm                         | 664 kB     00:09
(10/16): aspell-0.60.3-7.1.i386.rpm                       | 936 kB     00:10
(11/16): php-mbstring-5.1.6-23.2.el5_3.i386.rpm           | 994 kB     00:11
(12/16): php-5.1.6-23.2.el5_3.i386.rpm                    | 1.1 MB     00:13
(13/16): httpd-2.2.3-22.el5.centos.1.i386.rpm             | 1.2 MB     00:14
(14/16): aspell-en-6.0-2.1.i386.rpm                       | 1.6 MB     00:16
(15/16): php-cli-5.1.6-23.2.el5_3.i386.rpm                | 2.1 MB     00:29
(16/16): phpMyAdmin-2.11.9.5-1.el5.noarch.rpm             | 4.2 MB     00:57
---------------------------------------------------------------------------------
Total                                             78 kB/s |  14 MB     02:58
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : mailcap                                         [ 1/16]
  Installing     : php-common                                      [ 2/16]
  Installing     : libidn                                          [ 3/16]
  Installing     : curl                                            [ 4/16]
  Installing     : apr                                             [ 5/16]
  Installing     : gmp                                             [ 6/16]
  Installing     : apr-util                                        [ 7/16]
  Installing     : httpd                                           [ 8/16]
  Installing     : php-mbstring                                    [ 9/16]
  Installing     : php-pdo                                         [10/16]
  Installing     : php-mysql                                       [11/16]
  Installing     : aspell-en                                       [12/16]
  Installing     : aspell                                          [13/16]
  Installing     : php-cli                                         [14/16]
  Installing     : php                                             [15/16]
  Installing     : phpMyAdmin                                      [16/16] 

Installed: phpMyAdmin.noarch 0:2.11.9.5-1.el5
Dependency Installed: apr.i386 0:1.2.7-11 apr-util.i386 0:1.2.7-7.el5_3.1 aspell.i386 12:0.60.3-7.1 aspell-en.i386 50:6.0-2.1 curl.i386 0:7.15.5-2.1.el5_3.4 gmp.i386 0:4.1.4-10.el5 httpd.i386 0:2.2.3-22.el5.centos.1 libidn.i386 0:0.6.5-1.1 mailcap.noarch 0:2.1.23-1.fc6 php.i386 0:5.1.6-23.2.el5_3 php-cli.i386 0:5.1.6-23.2.el5_3 php-common.i386 0:5.1.6-23.2.el5_3 php-mbstring.i386 0:5.1.6-23.2.el5_3 php-mysql.i386 0:5.1.6-23.2.el5_3 php-pdo.i386 0:5.1.6-23.2.el5_3
Complete!
[root@cachak-dev ~]#

diatas sebenarnya banyak yang harusnya gak ikut keinstall apabila sudah ke install, misalnya httpd
setelah itu jangan lupa install php-mcrypt


[root@cachak-dev ~]# yum install php-mcrypt
Loaded plugins: fastestmirror
Repository epel is listed more than once in the configuration
Loading mirror speeds from cached hostfile
Setting up Install Process
Parsing package install arguments
Resolving Dependencies
--> Running transaction check
---> Package php-mcrypt.i386 0:5.1.6-5.el5 set to be updated
--> Processing Dependency: libmcrypt.so.4 for package: php-mcrypt
--> Running transaction check
---> Package libmcrypt.i386 0:2.5.7-5.el5 set to be updated
--> Finished Dependency Resolution

Dependencies Resolved

=================================================================================
 Package              Arch           Version                Repository      Size
=================================================================================
Installing:
 php-mcrypt           i386           5.1.6-5.el5            epel            16 k
Installing for dependencies:
 libmcrypt            i386           2.5.7-5.el5            epel           124 k

Transaction Summary
=================================================================================
Install      2 Package(s)
Update       0 Package(s)
Remove       0 Package(s)         

Total download size: 140 k
Is this ok [y/N]: y
Downloading Packages:
(1/2): php-mcrypt-5.1.6-5.el5.i386.rpm                    |  16 kB     00:00
(2/2): libmcrypt-2.5.7-5.el5.i386.rpm                     | 124 kB     00:01
---------------------------------------------------------------------------------
Total                                             62 kB/s | 140 kB     00:02
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : libmcrypt                                         [1/2]
  Installing     : php-mcrypt                                        [2/2] 

Installed: php-mcrypt.i386 0:5.1.6-5.el5
Dependency Installed: libmcrypt.i386 0:2.5.7-5.el5
Complete!
[root@cachak-dev ~]#

2.Konfigurasi phpMyAdmin
Lakukan edit file /etc/httpd/conf.d/phpMyAdmin.conf
dari :

# phpMyAdmin - Web based MySQL browser written in php
#
# Allows only localhost by default
#
# But allowing phpMyAdmin to anyone other than localhost should be considered
# dangerous unless properly secured by SSL

Alias /phpMyAdmin /usr/share/phpMyAdmin
Alias /phpmyadmin /usr/share/phpMyAdmin

   order deny,allow
   deny from all
   allow from 127.0.0.1

# This directory does not require access over HTTP - taken from the original
# phpMyAdmin upstream tarball
#

    Order Deny,Allow
    Deny from All
    Allow from None


# This configuration prevents mod_security at phpMyAdmin directories from
# filtering SQL etc.  This may break your mod_security implementation.
#
#
#    
#        SecRuleInheritance Off
#    
#

Menjadi

[root@cachak-dev ~]# cat /etc/httpd/conf.d/phpMyAdmin.conf
# phpMyAdmin - Web based MySQL browser written in php
#
# Allows only localhost by default
#
# But allowing phpMyAdmin to anyone other than localhost should be considered
# dangerous unless properly secured by SSL

Alias /phpMyAdmin /usr/share/phpMyAdmin
Alias /phpmyadmin /usr/share/phpMyAdmin

   order deny,allow
   #deny from all
   #allow from 127.0.0.1

# This directory does not require access over HTTP - taken from the original
# phpMyAdmin upstream tarball
#

    Order Deny,Allow
    Deny from All
    Allow from None


# This configuration prevents mod_security at phpMyAdmin directories from
# filtering SQL etc.  This may break your mod_security implementation.
#
#
#    
#        SecRuleInheritance Off
#    
#
[root@cachak-dev ~]#

disini saya hanya ngedit bagian
#deny from all #allow from 127.0.0.1
artinya diallowed dari semua ip, untuk allowed dari ip tertentu, misalnya ip 202.xxx.xxx.10 maka menjadi
deny from all allow from 202.xxx.xxx.10
setelah itu restart httpd

[root@cachak-dev ~]# /etc/init.d/httpd restart
Stopping httpd:                                            [  OK  ]
Starting httpd:                                            [  OK  ]
[root@cachak-dev ~]#

setelah itu setting phpMyAdmin.conf di /etc/phpMyAdmin/config.inc.php
dibawah $i = 0 tambahkan $cfg['blowfish_secret'] = ‘H1PvIjBDbw’; sehingga menjadi :
$i = 0; $cfg['blowfish_secret'] = 'H1PvIjBDbw';
terus rubah
$cfg['Servers'][$i]['auth_type'] = 'http';
menjadi :
$cfg['Servers'][$i]['auth_type'] = 'cookie';
setelah itu save
setelah itu tinggal http://host/phpMyAdmin

Configurasi squid di Fedora Core 4 Seri 1

cachak — Tue, 17 Jan 2006 10:36:34 +0000

Tutorial ini hanya menjelaskan cara mengconfigurasi squid bukan cara menginstall squid dari .tar.gz karena di squid di fedora core 4 defaultnya sudah terinstall, jadi yang harus kita lakukan hanya mengconfigurasinya. yang perlu disiapin adalah berapa space yang dialokasikan buat squidnya dan bakal di tarok dimana.
misalnya

port : 3128 8080 3127 (tiga port)
space : 3 G (3072M)
alokasi di : /home/cache/squid
network yang diallowed untuk mengakses proxy : 172.17.3.0/24 dan 192.168.0.0/24

configurasi dari root:
1.cd /etc/squid
2.backup configurasi squidnya :

[root@cachak squid]#cp squid.conf squid.conf.org
[root@cachak squid]#cd

3.buat folder /home/cache/squid setelah itu ownernya digantikan ke user squid

[root@cachak ~]#mkdir -p /home/cache/squid
[root@cachak ~]#chown -R squid:squid /home/cache/squid

4.buat folder cache_dir

[root@cachak ~]#mkdir /home/cache/squid/spool
[root@cachak ~]#chown -R squid:squid /home/cache/squid

5.selanjutnya adalah mengconfigurasi squid.conf dan bagian2 yang perlu di edit dari squid.conf adalah
a. edit http_portnya yaitu bagian

# http_port 3128

menjadi

http_port 3128 8080 3127

b. edit access.lognya

# cache_access_log /var/log/squid/access.log

menjadi

cache_access_log /home/cache/squid/access.log

c. edit cache lognya

# cache_log /var/log/squid/cache.log

menjadi

cache_log /home/cache/squid/cache.log

d. edit cache_store_log

# cache_store_log /var/log/squid/store.log

menjadi

cache_store_log /home/cache/squid/store.log

e. edit memori yang dialokasikan buat menjalankan squidnya, sesuaikan dengan kemampuan squid servernya

# cache_mem 8 MB

menjadi

cache_mem 16 MB

f.edit cache dir nya, arahkan sesuai dengan langkah no 5 dan juga space alokasinya yaitu 3072 M

# cache_dir ufs /var/spool/squid 100 16 256

menjadi

cache_dir ufs /home/cache/squid/spool 3072 16 256

g.nah sekarang tinggal nambahin network yang mau di allowed untuk access proxy servernya
cari bagian :

#Recommended minimum configuration:
acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl to_localhost dst 127.0.0.0/8
acl SSL_ports port 443 563
acl Safe_ports port 80          # http
acl Safe_ports port 21          # ftp

acl Safe_ports port 443 563     # https, snews
acl Safe_ports port 70          # gopher
acl Safe_ports port 210         # wais
acl Safe_ports port 1025-65535  # unregistered ports
acl Safe_ports port 280         # http-mgmt
acl Safe_ports port 488         # gss-http
acl Safe_ports port 591         # filemaker
acl Safe_ports port 777         # multiling http
acl CONNECT method CONNECT

dibawah acl localhost src 127.0.0.1/255.255.255.255, tambahkan network yang akan di allowed

acl net1 src 172.17.3.0/255.255.255.0
acl net2 src 192.168.0.0/255.255.255.0

setelah itu supaya net1 dan net2 td bisa mengakses squid maka tambahkan http_access allow
cari baris :

# And finally deny all other access to this proxy
http_access allow localhost
http_access deny all

diantar http_access allow localhost dan http_access deny all tambahkan :

http_access allow net1
http_access allow net2

baris ini bisa ditarok di atas http_access allow localhost atau dibawah http_access allow localhost yang penting diatas http_access deny all

6.setelah itu simpen. lalu start squid nya

[root@cachak ~]#/etc/init.d/squid start

7.setelah itu gunakan testing squidnya menggunakan browser sambil di lihat acess log nya

[root@cachak ~]#tail -f /home/cache/squid/access.log

8.Sekian dulu ya tutorial nya kalau ada yang kurang aku minta maaf atau ada yang salah mohon dikasih tau, nanti yang seri 2 aku coba setting squid dengan squid authentifikasi segingga untuk menggunakan squid harus memasukkan username dan password.

Restore Password MySQL

cachak — Wed, 21 Sep 2005 16:36:05 +0000

Tutorial Yang akan saya tulis ini adalah tutorial untuk menrestor password root mysql kalau kita lupa, dan saya mencobanya di linux fedora core, semoga bermanfaat buat semuanya.

1. login lah sebagai root (buka 2 console)
2. matikan service mysql

console1# /etc/init.d/mysqld stop

3. nyalakan service mysql dengan option –skip-grant-table, perintah ini harus dijalankan sebagai user mysql

console2# su mysql
console2# /usr/libexec/mysqld --skip-grant-table

4. jalankan mysql client

 console1# mysql

5. pilih database mysql

mysql> use mysql;

6. ubah password root di dalam tabel user

mysql> update user set Password=password('password_baruku')
where ((User like 'root') and (Host like 'localhost'));

7. flush privileges

mysql> flush privileges;

8. matikan service mysql

console1# killall mysqld

9. jalankan kembali service mysql

console1# /etc/init.d/mysqld start

Sumber : CVS Om Dheche