Using Php 5.3 on Cpanel platform

To install applications that require a higher PHP version, create a .htaccess file inside the application directory and specify which version of php you want used.


# Use PHP 5.3
AddType application/x-httpd-php53 .php

SSH permission issue - failed to add host to known hosts (/home/username/.ssh/known_hosts)

 The permission set on the .ssh folder, the private keys and public keys matter. To solve the problem of -

Failed to add the host to the list of known hosts (/home/username/.ssh/known_hosts)

.ssh folder - permission set to 700
public keys (id_rsa.pub or id_dsa.pub)- permission set to 644
private keys (id_rsa or id_dsa)- permission set to 600

Restore crashed Windows 7 (with no recovery image) after installing Ubuntu

Have you tried dual booting Ubuntu and Windows 7 and windows fails?

Did the Ubuntu installation complete successfully, and grub was properly installed but you still get the blue screen of death when you try booting windows?

Well, this is simple. The answer is with the file type of the windows partition.

I am assuming you have set up Ubuntu and grub is correctly installed. If not, please see https://help.ubuntu.com/community/Boot-Repair#A1st_option_:_get_a_CD_including_Boot-Repair for more information.

To correct this, boot your system to the Linux installation and run in root:

fdisk -l /dev/xxx

The Id for the windows partition (sda1 & sda2) is 42 which is the code for SFS. Change the file type Id to 7, which corresponds to HPFS/NTFS/exFAT, save and reboot.

fdisk /dev/xxx
In the prompt, type p to print the current partition table

To change the file type, type t in the prompt and enter the partition to change.

In my case, I will enter 1. 

For a list of the Hex code list of the file types, enter L in the prompt.

Enter 7 in the prompt, which corresponds to the HPFS/NTFS/exFAT file system.

Repeat the process for the second or third windows partition, and when done enter w in to save.

Reboot your system, and grub will load windows ! !  !

Install Solaris, Apache, Mysql & Php (SAMP)

You may be conversant with the terms LAMP and WAMP. This means a stack of applications.

For LAMP = Linux, Apache, Mysql and Php/Perl/Python.
For WAMP = Windows, Apache, Mysql and Php/Perl/Python.

To get your new Solaris 11 installation SAMP ready, we need to install Apache, Mysql and Php.

kilo@kilo:~$ sudo -s
Password:
root@kilo:/home/kilo#
root@kilo:/home/kilo# pkg refresh
root@kilo:/home/kilo# pkg install amp
               Packages to install:    12
           Create boot environment:    No
               Services to restart:     1
DOWNLOAD                                  PKGS       FILES    XFER (MB)
database/mysql-51                         3/12     554/729    59.0/75.2


When done, enable the apache and mysql service.
root@kilo:/home/kilo#svcadm enable apache22
root@kilo:/home/kilo#svcadm enable mysql

By default, the mysql root user has no password.
root@kilo:/home/kilo# mysql -u root

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.1.37 Source distribution

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>;


We can set the password for the root user in mysql using

root@kilo:/home/kilo#mysqladmin -u root password "PASSWORD"

If you get the error - 

bash: mysqladmin: command not found

It means that the command mysqladmin is not in the path.
root@kilo:/home/kilo# which mysqladmin
which: no mysqladmin in (/usr/gnu/bin:/usr/bin:/usr/sbin:/sbin)
 
To solve this, use the full path for the command.
root@kilo:/home/kilo# find / -name mysqladmin
/usr/mysql/5.1/bin/sparcv9/mysqladmin
/usr/mysql/5.1/bin/mysqladmin

/usr/mysql/5.1/bin/mysqladmin -u root password "PASSWORD"

Configure pkg in Solaris to use proxy

To configure your Solaris image packaging retrieval client (pkg) to use proxy -

kilo@kilo:~$ sudo -s   (I am using solaris 11. su - root can also be used)
Password:
root@kilo:/home/kilo# 
root@kilo:/home/kilo#export http_proxy=”http://proxyusername:proxypassword@proxyservername:port”

Replace the following -
proxyusername = your proxy account username
proxypassword = your proxy account password
proxyservername = your proxy server address
port = proxy port number

Access scanner from LTSP server and thin clients

There seem to be a permission issue with accessing usb scanners from LTSP server and connected thin clients. Logging in as normal users, you cannot access the connected scanner.

Running the scanimage command as a normal user 
ltsp@ltsp-ProLiant-DL380-G4:~$ scanimage -L
device `hp3900:libusb:001:011' is a Unknown RTS8822 chipset based flatbed scanner

while logging in as the root user, running the scanimage command gives the parameter of the connected scanner.
root@ltsp-ProLiant-DL380-G4:~# scanimage -L
device `hp3900:libusb:001:011' is a Hewlett-Packard Scanjet 3800 flatbed scanner

You can however use any scan utility, but you will need root access to do this. To correct this - Looking at the permission for the usb character file
ltsp@ltsp-ProLiant-DL380-G4:~$ lsusb
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 005: ID 1c4f:0002 SiGma Micro
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 011: ID 03f0:2605 Hewlett-Packard ScanJet 3800c
Bus 001 Device 009: ID 03f0:5c17 Hewlett-Packard
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

The user/group permission to the usb character device responsible for the connected usb device has read & write for the root user and group.
ltsp@ltsp-ProLiant-DL380-G4:~$ ls -l /dev/bus/usb/001

total 0
crw-rw-r--  1 root root 189,  0 2011-10-11 00:28 001
crw-rw-r--+ 1 root lp   189,  8 2011-10-11 13:03 009
crw-rw-r--+ 1 root root 189, 10 2011-10-11 09:17 011

Change the group from root to users. (In my case, the group users has all ltsp client users in that group)
root@ltsp-ProLiant-DL380-G4:/dev/bus/usb/001# chgrp users 011
root@ltsp-ProLiant-DL380-G4:/dev/bus/usb/001# ls -al
total 0
drwxr-xr-x  2 root root      100 2011-10-11 09:10 .
drwxr-xr-x  7 root root      140 2011-10-11 00:28 ..
crw-rw-r--  1 root root  189,  0 2011-10-11 00:28 001
crw-rw-r--+ 1 root lp    189,  8 2011-10-11 13:03 009
crw-rw-r--+ 1 root users 189, 10 2011-10-11 09:17 011

And now.......
ltsp@ltsp-ProLiant-DL380-G4:~$ scanimage -L
device `hp3900:libusb:001:011' is a Hewlett-Packard Scanjet 3800 flatbed scanner
ltsp@ltsp-ProLiant-DL380-G4:~$

Ubuntu 11.04 installation hangs on timezone selection

When installing Ubuntu 11.04, the installation process hangs on time zone selection.  The installation hangs because of your network (Internet) connection.

The trick in dealing with this is disable your network connection and restart the installation.