Problem in MYSQL in LAMP environment

[aaaaaarko]

LAMP environment is installed in my redhat 5.4 server for an application software.I have kept the database at /var/lib/mysql/ecourtsdb and content of the application at /var/www/html.Application was accessible but after using this command
[root@localhost ~]# /usr/bin/mysqladmin -u root password redhat
[root@localhost ~]#
the application was showing in the web browser Access denied for user 'apache'@'localhost' (using password: NO)

and in the command promt its showing
[root@localhost ~]# /usr/bin/mysqladmin -u root password redhat
/usr/bin/mysqladmin: connect to server at 'localhost' failed
error: 'Access denied for user 'root'@'localhost' (using password: NO)'

[root@localhost ~]#/usr/bin/mysqladmin -u apache password redhat
/usr/bin/mysqladmin: connect to server at 'localhost' failed
error: 'Access denied for user 'apache'@'localhost' (using password: NO)'

I think apache can not access the mysql.thats why this is showing in the browser.

Need help.

[HROAdmin26]

/usr/bin/mysqladmin -u root password redhat
/usr/bin/mysqladmin: connect to server at 'localhost' failed
error: 'Access denied for user 'root'@'localhost' (using password: NO)

Read the manual / use Google.

mysqladmin --help

  -p, --password[=name] 
                      Password to use when connecting to server. If password is
                      not given it's asked from the tty.

mysqladmin -u root -p password

OR

mysqladmin -u root -p

[aaaaaarko]

[root@localhost ~]# mysqladmin -u root -p redhat
Enter password: 
mysqladmin: Unknown command: 'redhat'

this is showing
i used the below mentioned command to change the password of root but was not working

[root@localhost ~]# mysqladmin -u root -p redhat password nic123
Enter password: 
mysqladmin: Unknown command: 'redhat'

[aaaaaarko]

[root@localhost ~]# mysqladmin -u root -predhat password nic123
[root@localhost ~]# mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 24
Server version: 5.0.45 Source distribution

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql>

this command worked.

[HROAdmin26]

Nowhere did you state you were trying to change the MySQL root password using the mysqladmin command.

Google: mysqladmin change password

First Link

mysqladmin -u root -p'abc' password '123456'

[aaaaaarko]

before assigning password for mysql(mysqladmin -u root password newpassword )for the first time,mysql db was accessible from the web browser.As the problem occurred after assigning the password i was trying to change the password.
Although the problem is still there after changing the password.