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Linux

How to scan for new disk in Redhat without rebooting?

 This version supports hot adding new luns, etc. Please see text below on how 
to perform the lun hot add procedure. The latest driver-v7.00.60-fo has the 
mechanism which allows the user to force the driver to do re-scan of the 
devices to allow a new device to be added. This triggers the driver to 
initiate lun discovery process. 

To do this from the command line: 
#echo "scsi-qlascan" > /proc/scsi// (qlogic 
driver will re-scan) 

Where can be either one...

 

How to change your hostname on Solaris

 On Solaris, there are three files that you need to edit. These include /etc/hosts, /etc/hostname. and /etc/nodename.

- Edit /etc/hosts with vi and update to the new hostname.
- Similarly update /etc/nodename using an editor or “echo newhost > /etc/nodename”
- Lastly, edit /etc/hostname.. The should be replaced by the name of the particular network interface on your server. For example, a common name is /etc/hostname.hme0. If you’re not sure about the interface name...

 

How make my suse 11 into a router/firewall

 This thread is a bit older, but I wanted to comment on it in case somebody finds it through Google.

This setup is indeed the one that Microsoft recommends for SBS 2003.

From a security standpoint, it is not a good setup, though, and Microsoft stripped out this flawed setup from SBS 2008. It is the reason that SBS 2008 Premium no longer includes ISA Server, Microsoft's attempt at a firewall.

The reason it is not a good setup that you are using your main server, the one that everything in...

 

Installing VirtualBox on a PAE Kernel System

 $ export KERN_DIR=/usr/src/kernels/2.6.18-92.1.22.el5-i686/

$ /etc/init.d/vboxdrv setup
Stopping VirtualBox kernel module [  OK  ]
Removing old VirtualBox netflt kernel module [  OK  ]
Removing old VirtualBox kernel module [  OK  ]
Recompiling VirtualBox kernel module [  OK  ]
Starting VirtualBox kernel module [FAILED]
(modprobe vboxdrv failed. Please use 'dmesg' to find out why)

dmesg shows this:

vboxdrv: disagrees about version of symbol struct_module

Interesting!

After...

   

How recompile VirtualBox for my kernel version

 The /etc/SuSE-release file shows you which version of SUSE you are running.
The /etc/SuSE-release file is part of the suse-release RPM.

# more /etc/SuSE-release
SuSE Linux 9.1 (i586)
VERSION = 9.1

# rpm -qli suse-release
Name : suse-release Relocations: (not relocatable)
Version : 9.1 Vendor: SuSE Linux AG, Nuernberg, Germany
Release : 0 Build Date: Tue Apr 6 15:59:56 2004
Install date: Thu Apr 21 10:19:29 2005 Build Host: f89.suse.de
Group : System/Fhs Source RPM...

 

How to upgrade suse into a newer version

 You can upgrade an installed version. Suse normally installs itself on 3 partitions, swap (memory swap space), root (where the os and major programs live), and home (where your personal data and settings are). By telling the installer not to format home you can preserve your personal data and settings.

If this is a totally new install and you want to preserve an existing OS ie Windows. You will need to adjust the partitions on the hard drive to allow a free space for the new OS to install...

 

HOW TO Install HP Data Protector 5.5 on Linux

 Contents

This manual describes the install of HP Data Protector 5.5 Core component, Disk Agent and Media Agent on a Linux server. In this manual the backup server is backupserver.demo.local and the linux server is linuxserver.demo.local

 

Background

The HP Data Protector 5.5 suite does not contain a simple installation for Linux Agents, therefore this manual is necessary.

This manual uses:

-          hp OpenView Storage Data Protector 5.5 for HP-UX 11.23 IA-64...

 

Red Hat Enterprise Linux AS 4 Release Notes

 Introduction 

The following topics related to Red Hat Enterprise Linux 4 are covered in this document:

Introduction (this section)

Overview of this release

Installation-related notes

Package-specific notes

Packages added/removed/deprecated Overview of This Release 

The following list includes brief summaries of some of the more significant aspects of Red Hat Enterprise Linux 4:

Red Hat Enterprise Linux 4 includes...

 
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