But you can get this error Message:

no matching cipher found: client blowfish-cbc server aes256-cbc,aes128-cbc

You can edit your Ciphers list to include blowfish-cbc by doing the following:

vi /etc/ssh/sshd_config

at the end of the file you should see a line like: Ciphers aes256-cbc,aes128-cbc

Change this line to:

Ciphers aes256-cbc,aes128-cbc,blowfish-cbc

Once the file has been updated run the following command to restart the sshd service:

service sshd restart

# <file system>     <mount point>   <type>  <options>                 <dump>  <pass>
/dev/sda1 /my/disk vfat default,umask=077,gid=46 0 0

In the above example /dev/sda1 is the device you want to be mounted in /my/disk directory, but the name /dev/sda1 can change when you change the order on your controller or when you change the port where you connect your external usb-drive.
So the name of the device isn't an unique identifier of the specific disk; you need to refer to it in a different way, using the UUID (Universally Unique IDentifier). The UUID is a specific identifier for this specific file system, it changes only when you reinitialize the filesystem but not when you change the order you connect it to you machine.

So you can change you /etc/fstab in this way and you no need to worry about the reordering of hard disk anymore:

UUID=1928b637-4daa-4073-b42c-14a05220ce8a /my/disk vfat defaults,umask=007,gid=46 0 0

To retrive the UUID of a specific partition you had different ways depending on your linux distribution, here are some example, try the one that fits your linux distribution:

dumpe2fs /dev/sda1 | grep -i uuid

blkid /dev/sda1

ls -l /dev/disk/by-uuid/

Here an example:

User:admin logged-in to ILOGB87451B7E(10.1.1.15)
iLO 2 Advanced 1.81 at 11:05:47 Jan 15 2010
Server Name: myserver.mydomain.com
Server Power: On

CLI session stopped

In order to enable it follow this simple steps:

1. Go to Control Panel
2. Select Programs and Features
3. Select Turn Windows features on or off
4. Select the Telnet Client option
5. Click OK
6. A dialog box will appear to confirm installation

The telnet command should now be available!

This is due to the fact that the ntp daemon doesn't run as root but the directory /etc/ntp is owned by root!
On the newest release of RedHat the preferred location for the drift file is the directory /var/lib/ntp but you can set an other one owned by ntp:ntp .

Source: http://magazine.redhat.com/2007/02/06/why-do-i-get-cant-open-etcntpdrifttemp-permission-denied-entries-in-varlogmessages-when-i-use-ntpd/

RMAN> change archivelog all crosscheck;

In this way you probably don't have a consistent backup so it's reccomended to make a full backup in order to go to a consistent situation.

First of all make a backup copy of the file you need to modify:

cp /etc/gdm/gdm             /etc/gdm/gdm.backup
cp /etc/gdm/gdm-password    /etc/gdm/gdmpassword.backup
cp /etc/gdm/gdm-fingerprint /etc/gdm/gdm-fingerprint.backup

Now modify these files:

vi gdm
vi gdm-password
vi gdm-fingerprint

You need to comment or remove the line:

auth       required    pam_succeed_if.so user != root quiet

Reboot you system and you can logon with root in the GUI.

If you don't have the fingerprint sensor on you machine, probably you don't need to change this file!

Tested only on Fedora Core 11 & 12

Install a new kernel:

rpm -ivh kernel.....rpm

Show the kernel installed:

rpm -qa | grep kernel

Remove unused kernel:

rpm -e kernel.....

Removing kernel it should remove also the entries in the grub.conf
In order to check the current kernel you can simply use the command:

uname -a

In order to change the kernel to load at startup edit the file /boot/grub/grub.conf.

netstat -nr

You had to open a dos command prompt and setup your SID and you correct IP Address:

C:\> set ORACLE_SID=YOUR_SID
C:\> set ORACLE_HOSTNAME=10.1.0.100

Unlock DBSNMP and SYSMAN user and reset their password connecting :

sqlplus "sys/YOUR_PASSWORD@YOUR_SID as sysdba"
alter user dbsnmp account unlock identified by YOUR_PASSWORD;
alter user sysman account unlock identified by YOUR_PASSWORD;

Go to %ORACLE_HOME%\bin directory and drop EM Repository:

C:\oracle\product\10.2.0\db1\bin> emca -deconfig dbcontrol db -repos drop

Clear some DB Object that can remain:

sqlplus "sys/YOUR_PASSWORD@YOUR_SID as sysdba"
drop public synonym SETEMVIEWUSERCONTEXT;
drop ROLE MGMT_USER;
drop PUBLIC SYNONYM MGMT_TARGET_BLACKOUTS;
drop user sysman cascade;
drop user MGMT_VIEW cascade;
exit;

Recreate the EM Repository:

C:\oracle\product\10.2.0\db1\bin> emca -config dbcontrol db -repos create

When you start emca operations follow online instructions.