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JeOS: how to install missing crontab?

Posted by Ivan
/ March 19, 2009 / 1 Comment

While working with my Ubunu JeOS 8.04 virtual machine I found out that crontab was missing. Crontab was not included by default. Crontab is the linux scheduler to run things on specific times you define. Oeps seems crontab is missing on my system. How to install crontab on Ubuntu JeOS? sudo apt-get install cron
SMS 2003: Error 25100

Posted by Ivan
/ March 16, 2009 / Leave a comment

I am still managing a SMS 2003 environment and last week we encountered following message on one of the SMS 2003 clients. The message appeared in Application Eventviewer and SMS client did not report back to our SMS Primary site: Event Type: Error Event Source: MsiInstaller Event Category: None Event ID: 10005 Date: 3/10/2009 Time: 12:17:06 PM User: NETWORKNET\Ivan Computer: IVAN-VM01 Description: Product: SMS Advanced Client — Error 25100. Setup...
WordPress: intranet and firewall

Posted by Ivan
/ March 11, 2009 / 2 Comments

I am a huge fan of WordPress blogging platform. Recently I introduced the platform in my enterprise environment. WordPress is running behind a restricted network and it has no connection to the Internet. While installing and finalizing the virtual machine which is used to host WordPress I encountered one problem with it. WordPress was so slow! I download latest version of WordPress 2.7 and installed it on a Ubuntu JeOS...
Ubuntu: JeOS mod_rewrite Apache2

Posted by Ivan
/ March 11, 2009 / Leave a comment

While building, configuring and testing my virtual machine based on Ubuntu JeOS 8.04 I encountered the problem with mod_rewrite module. I migrated one of my WordPress blogs to this new vm and tried to get it working. Main page and admin area worked fine; but when opening subpages or any other area of the blog I got page could not be displayed. I figured out after checking .htaccess and reconfiguring...
Ubuntu: JeOS vm clone and Network

Posted by Ivan
/ March 8, 2009 / 1 Comment

I am creating and configuring virtual appliances for ESX server with Ubuntu JeOS 8.04 server release. When you create something it is always good to test what you created. I finshed one of my JeOS virtual machines running with ESX server and cloned the JeOS virtual machine. JeOS appliance was booted and I logged on. A bash script run to change default passwords and SSH server was re-installed to generate SSH keys; immediately after...
Windows XP: Automatic Updates

Posted by Ivan
/ February 19, 2009 / 9 Comments

When reviewing my Windows XP client eventlogs I encountered the following two error messages: The client did not receive any Security Updates since those eventsstarted. For whatever reason the SoftwareDistribution database used by “Automatic Updates” service become corrupted. To fix this problem: Immediately after “Automatic Updates” service was started my client download the patches from the WSUS server.
Software Deployment: Microsoft Visio Viewer

Posted by Ivan
/ February 11, 2009 / 3 Comments

In an enterprise environment Microsoft Visio is a common tool to see. The price for a single license is significant so you don’t want to load this to as default installation on all your clients. Microsoft provides a small viewer for Visio drawings which is integrated with Internet Explorer. I would like to include this add-on to all of my clients. A small script is needed to automatically distribute this. You can use software distribution mechanism you have but...
VMWare ESX: Blue screen during installation of Windows XP

Posted by Ivan
/ February 10, 2009 / 1 Comment

If you try to install Windows XP virtual machine on a VMWare ESX host you will receive the following error blue screen during the Setup phase. Make sure you download the SCSI LSI Logic driver. Restart the setup; run F6 and load the SCSI drivers. With the lastest versions of VMWare ESX/ESXi you will be able to add IDE devices and perform usual installation without the SCSI driver. References VMware:...
WordPress: how to set external SMTP server?

Posted by Ivan
/ February 9, 2009 / 16 Comments

I installed and configured a WordPress virtual machine appliance. The virtual machine was running in an intranet environment. An internal SMTP server was used which allowed to email relay into our Microsoft Exchange organization. The vm appliance had an admin option to configure the SMTP relay server. I configured the IP address of the SMTP server. Whenever I posted a comment or any other action where WordPress needed to send...
Active Directory: Tombstone Lifetime of 60 days with a virtual machine

Posted by Ivan
/ February 8, 2009 / Leave a comment

My domain controllers didn’t receive any replication updates from their partners. I checked Event Viewer and saw a lot of error messages and warnings. The domain controller I was analyzing, run on Windows Server 2008 as a virtual machine. EventID 1925, 1435 and 1663 warnings were showed in the Directory Services Event Log. I restarted “Active Directory Domain Services” service and reboot the server. I also reset the computer account...