Riccardo Riva

How-To get UUID of partitions on Linux systems

Riccardo — Mon, 30 Aug 2010 14:21:29 +0000

The Universally Unique Identifier can be used to identify a device independent form its mount point or device name. This is more and more important as many devices today support hot-plugging or are external anyway. Therefore it makes sense to access a device not by device name but by the UUID, especially in /etc/fstab. There are a lot [...]

How-To Reset Oracle sys password reminder to myself

Riccardo — Sat, 31 Jul 2010 22:01:36 +0000

To reset the sys password of a database, do the following: 1) rename/delete ${ORACLE_HOME}/database/PWD{ORACLE_SID}.ora 2) enter the command: orapwd file=${ORACLE_HOME}/database/PWD{ORACLE_SID}.ora password=newpassword 3) start “sqlplus /nolog” 4) login with sys and the newpassword (SQL> connect sys/newpassword as sysdba) 5) now reset other passwords or just be done Hope this help (especially me) Bye Riccardo Bookmark It

MySQL Commands

Riccardo — Wed, 21 Jul 2010 08:08:25 +0000

This is a list of handy MySQL commands that I use frequently. Below when you see # it means from the unix shell. When you see mysql> it means from a MySQL prompt after logging into MySQL. To login (from unix shell) use -h only if needed. # [mysql dir]/bin/mysql -h hostname -u root -p Create a database [...]

New Life – RPM

Riccardo — Sun, 06 Jun 2010 16:49:06 +0000

After a lot of time, I’ve decided to try to work in another way, by myself. I have the great pleausure to present you the RPM. RPM S.r.l. is a new company, born this year, from me and other two friends. We are offering consulting, planning and all ICT services in general, on Windows, Linux, Networking and virtualization. Thank [...]

Change is coming

Riccardo — Wed, 21 Apr 2010 20:58:09 +0000

Ubuntu Lucid Lynx is coming …. are you ready ? Fedora Goddard is also coming Bye Riccardo Bookmark It

Symantec Backup Exec Remote agent (RALUS) init script for RHEL / CentOS

Riccardo — Fri, 19 Mar 2010 22:03:52 +0000

The following is a simple (and very row) init script for Symantec Backup Exec Agent for Linux. I wrote it because I really hate to execute script not registered with chkconfig on a production systems. I’ve added the “status” function by checking if an executable called “beremote” is listening on 10000/tcp on IPv4 on the localhost. If you [...]

How-To create statistics for Greylisted messages using Postgrey

Riccardo — Tue, 09 Mar 2010 22:05:36 +0000

If you use Postgrey (and you should do it) on your mail servers and you want to have some statistics on the amount of greylisted messages and other information, you should find useful the following script. The scripts assume that you have installed Postgrey (http://postgrey.schweikert.ch/) on RHEL (http://www.redhat.com) or CentOS (http://www.centos.org). If you are using other distros [...]

How to daemonize ARECA RAID Controller HTTP Manager

Riccardo — Sun, 28 Feb 2010 22:05:07 +0000

This simple How-To will explain a raw and dirt method to daemonize to http manager for ARECA Raid Controller. If you have this controller on your system you should find in the bundled CD-ROM the following folder : root PACKAGES -> Linux -> CLI -> version -> i386 -> cli32 PACKAGES -> Linux -> CLI -> version -> x86-64 [...]

Bacula init script for RHEL / CentOS

Riccardo — Fri, 19 Feb 2010 22:01:25 +0000

The following is a simple (and very row) init script for Bacula 5.0. I wrote it because I really hate to execute script not registered with chkconfig on a production systems. The following is the script : #!/bin/sh # # BACULA Control Script # chkconfig: 2345 99 01 # Description: Here is a little startup/shutdown script for RedHat/CentOS systems # # processname: bacula # bacula-dir [...]

How-To create a complete Mail Relay with GreyListing, Antivirus, AntiSpam, RBL and other checks and Reverse Proxy

Riccardo — Thu, 11 Feb 2010 22:01:08 +0000

In this tutorial I will describe how setup a complete mail server for relaying mail to another server, for example an IMAP server or an Exchange, tipically this machine will be placed in a DMZ network and will be reachable from internet. I will explain how to install and configure : - Postgrey : to do GreyListing [...]

How to Tell if Your Processor Supports VT from Linux shell

Riccardo — Fri, 05 Feb 2010 22:09:48 +0000

Virtualization Technology (VT) is a set of enhancements to CPU that improve performance for running a virtual machine by offloading some of the work to the new cpu extensions. Both AMD and Intel have CPU that support this technology. In some cases it will be very usefule to know if your system can handle it. It will [...]

Bash Script for create users and mailboxes with Zarafa

Riccardo — Fri, 29 Jan 2010 08:05:35 +0000

This post will explain how to create users and mailboxes for Zarafa. I’ve tested it with CentOS 5.4 X86_64 and Zarafa 6.30.9 but it will fit with nearly all installation. First of all you have to create a test file with all the users you want to create, providing the following information : username password email address name surname For example : johndoe password [...]

Geek or Nerds ?

Riccardo — Mon, 28 Dec 2009 16:56:29 +0000

The following was MY results ! The Nerd Test Evaluation Report We’re sorry, but you are not a nerd, you are a geek. Social: Taking tests like this is probably the only way you can score. Health: The surgeon general warns that high cholesterol may promote arteriosclerosis. Aptitude: You don’t seem to have any skills whatsoever. Career: You should consider becoming a manager. You sould find [...]

How-To manually update VMware ESX 4 to ESX 4 Update 1

Riccardo — Tue, 01 Dec 2009 11:08:49 +0000

If you have a standalone VMware ESX 4 unmanaged or you haven’t yet configured VMware Update Manager, and you want to update it, you should do the following. Download the update package from VMware Web Site : ESX-4.0.0-update01.zip Copy it to your ESX Server 4 (i.e. on /tmp). Connect to your ESX Server with SSH or to a [...]

How To run VMware vSphere Client on Windows 7

Riccardo — Tue, 17 Nov 2009 02:00:04 +0000

Hi all, unfortunately I’m trying Windows 7 as my primary notebook OS (obviously on a Virtual Machine) and the main problem I’ve found was the inability to run VMware Vsphere client. As you can see below, the client was installed correctly without any errors : When attempting to run the client I’ve received the following errors and I [...]

How to Enable or Disable Quick Launch in Windows 7

Riccardo — Fri, 13 Nov 2009 08:17:22 +0000

From : SevenForums.com By default Quick Launch is disabled in Windows 7. This will show you how to enable or disable Quick Launch on the taskbar in Windows 7 as a toolbar with small or large icons. Quick Launch is used to open a program quickly from a shortcut on the taskbar. In this case in a [...]

Countdown initiated

Riccardo — Sat, 17 Oct 2009 08:43:52 +0000

Karmik Koala is coming …. are you ready ? for the impatience, you can download the beta from here : http://www.ubuntu.com/testing/karmic/beta Bye Riccardo Bookmark It

How-To authenticate users for a Fortinet IPSEC VPN to an Active Directory Server with LDAP

Riccardo — Sun, 20 Sep 2009 22:01:38 +0000

This how-to will explain how to use LDAP authentication to Microsoft Active Directory with an IPSEC VPN to a Fortinet device. I’ve tested it with a Fortigate 60B and a Fortigate 100A with success. This post assume you have a fully function VPN IPSEC configuration on your fortinet device with authentication based on a Fortigate group. Connect to [...]

How-To count files in a directory and all subdirectory

Riccardo — Sun, 13 Sep 2009 22:51:10 +0000

This is a simple shell script that count all files in a local directory and all subdir. It doesn’t care what extention the file has, it will just recursively go through each directory and count any files within it, plus recurse into any more directories it finds. Give it as a parameter the directory you [...]

VIM Tips and Tricks

Riccardo — Sun, 06 Sep 2009 22:01:03 +0000

This wuold be a simple reminder for the most common tips for VI or VIM. It would not be a deep dive on it, simply a memo for the most common feature used by me. Search and replace a string in a document : :.,$s/search_string/replacement_string/g Disabling highlighted patterns : Type “:nohl” to disable highlighting Comment out several lines at once (I [...]