SysAdmin

HOWTO change the LS colors on RedHat/CentOS

noreply@blogger.com (DJ) — Fri, 23 Mar 2012 13:46:00 +0000

copy the /etc/DIR_COLORS file to your $HOME dir and make the necessary changes in the file.

Korn Shell

noreply@blogger.com (DJ) — Fri, 23 Mar 2012 13:18:00 +0000

enable TAB completion : set -o viraw (or use set -o vi, works on my redhat enterprise 5.7)

prompt formatting : PS1='[$USER@$HOSTNAME]:${PWD#${PWD%/*/*}/} # '

http://osr507doc.sco.com/en/OSUserG/_The_Korn_shell_profile_and_kshrc.html

SQL Server 2008 R2 - How to gain access to a new installation

noreply@blogger.com (DJ) — Tue, 29 Nov 2011 14:21:00 +0000

In case you ever need to connect to a fresh installation of MS SQL Server 2008 R2 and you were not added during the installation, follow this procedure to gain access :

http://beyondrelational.com/blogs/chintak/archive/2010/07/20/sql-2008-r2-new-installation-and-login-password-unknown.aspx

Disable UAC for Windows Servers through Group Policy

noreply@blogger.com (DJ) — Mon, 21 Nov 2011 13:23:00 +0000

In Computer Configuration | Policies | Windows Settings | Security Settings | Local Policies | Security Options configure the following values:

- User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode
- User Account Control: Detect application installations and prompt for elevation
- User Account Control: Turn on Admin Approval Mode

Source.

Install XBMC on an Apple TV 2

noreply@blogger.com (DJ) — Sat, 19 Nov 2011 15:50:00 +0000

Link collection of what i used to install XBMC on my brand new apple TV 2 :

http://forum.xbmc.org/showthread.php?t=99315
http://support.firecore.com/entries/387605
http://wiki.xbmc.org/index.php?title=Install_XBMC_on_ATV2
http://wiki.xbmc.org/index.php?title=Install_XBMC_on_ATV2#Nightly
http://wiki.xbmc.org/index.php?title=XBMC_for_iOS_specific_FAQ#direct_boot

Pagefile Management for Windows Server Core

noreply@blogger.com (DJ) — Fri, 18 Nov 2011 16:40:00 +0000

First you need to disable the automatic management:

wmic
>computersystem where name="hostname" set AutomaticManagedPagefile=False

Next, you select where to put the pagefile and how big it should be (expressed in MB)

wmic
>pagefileset where name=”C:\\pagefile.sys” set InitialSize=8192,MaximumSize=8192

More info : http://blogs.dirteam.com/blogs/sanderberkouwer/archive/2007/12/27/page-files-in-server-core.aspx

Free eBook: TCP/IP Fundamentals for Microsoft Windows

noreply@blogger.com (DJ) — Fri, 18 Nov 2011 08:02:00 +0000

This online book describes the fundamentals of TCP/IP in Windows Vista, Windows Server 2008, Windows XP, and Windows Server 2003.

http://blogs.technet.com/b/johnbaker/archive/2011/11/10/free-ebook-tcp-ip-fundamentals-for-microsoft-windows.aspx

Free eBook: Understanding Microsoft Virtualization R2 Solutions

noreply@blogger.com (DJ) — Fri, 18 Nov 2011 07:52:00 +0000

Learn about the latest Microsoft Virtualization technologies, including Hyper-V and Windows Azure. Download Understanding Microsoft Virtualization R2 Solutions, written by industry expert Mitch Tulloch along with the Microsoft Virtualization team.

http://blogs.technet.com/b/johnbaker/archive/2011/11/04/free-ebook-understanding-microsoft-virtualization-r2-solutions.aspx

Securing an Ubuntu Server

noreply@blogger.com (DJ) — Wed, 02 Nov 2011 16:39:00 +0000

Action for me, still to do on my vps : http://www.andrewault.net/2010/05/17/securing-an-ubuntu-server/

Find empty directories

noreply@blogger.com (DJ) — Mon, 31 Oct 2011 12:49:00 +0000

Simple find command to find empty directories on a UNIX box :

find /path-to-directory -type d -empty

Back

noreply@blogger.com (DJ) — Wed, 26 Oct 2011 11:48:00 +0000

After a fairly long time being offline, i'll try to catch up again. Wish me luck!

Vacation

noreply@blogger.com (DJ) — Thu, 26 Nov 2009 21:14:00 +0000

Again my apologies for not updating, way to busy in real life. Leaving for a 2 week holiday now, so i should restart again mid december. Take care!

Attending Tech-Ed Europe 09

noreply@blogger.com (DJ) — Sun, 08 Nov 2009 10:01:00 +0000

I am leaving for Tech-Ed 2009, hosted in Berlin this year. I might post some updates here, will all depend if i find the time :-)

Hyper-V Guides

noreply@blogger.com (DJ) — Thu, 29 Oct 2009 14:09:00 +0000

Nice compilation of hyper-v guides, touching some of the following subjects:

- Learn about Microsoft virtualization technologies.
- Make decisions about the right licenses for the right scenarios.
- Plan your Hyper-V deployment.
- Manage a virtual machines environment.
- Apply security best practices.

Read it here.

Architec versus Engineer

noreply@blogger.com (DJ) — Mon, 19 Oct 2009 21:37:00 +0000

“An architect knows something about everything. An engineer knows everything about one thing.”

- Matthew Frederick, “101 Things I Learned in Architecture School”

How to Fix Project Server Events Service and Queue Service Event ID: 7000 Error

noreply@blogger.com (DJ) — Mon, 19 Oct 2009 19:22:00 +0000

The following errors will show up in your event log:
Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7009
Date: 9/7/2009
Time: 9:24:42 PM
User: N/A
Computer: PS07
Description:
Timeout (30000 milliseconds) waiting for the Microsoft Office Project Server Events Service service to connect.

Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7000
Date: 9/7/2009
Time: 9:24:42 PM
User: N/A
Computer: PS07
Description:
The Microsoft Office Project Server Events Service service failed to start due to the following error:
The service did not respond to the start or control request in a timely fashion.

Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7009
Date: 9/7/2009
Time: 9:24:42 PM

User: N/A
Computer: PS07
Description:
Timeout (30000 milliseconds) waiting for the Microsoft Office Project Server Queue Service service to connect.

Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7000
Date: 9/7/2009
Time: 9:24:42 PM

User: N/A
Computer: PS07
Description:
The Microsoft Office Project Server Queue Service service failed to start due to the following error:
The service did not respond to the start or control request in a timely fashion.

You will face this error most likely if your project server is not connected to the internet. Yet again a simple solution, add the CRL of Microsoft and your service will start again :-)

Source and full description: http://rperreaux.spaces.live.com/blog/cns!5D7BD18D324CBEEF!529.entry

How to import a private key and certificate into a java keystore

noreply@blogger.com (DJ) — Mon, 19 Oct 2009 19:13:00 +0000

Convert to PEM format via openssl :

openssl pkcs8 -topk8 -nocrypt -in key.pem -inform PEM -out key.der -outform DER
openssl x509 -in cert.pem -inform PEM -out cert.der -outform DER

Import private key and cert via ImportKey class

Import the keystore generated above into your existing keystore :

keytool -v -importkeystore -srckeystore "C:\keystore.ImportKey" -destkeystore "C:\.keystore"

(optionally you can specify the alias via –srcalias and –destalias, note that an alias is unique within the keystore)

Sources : http://www.agentbob.info/agentbob/79-AB.html, http://java.sun.com/j2se/1.3/docs/tooldocs/win32/keytool.html and http://conshell.net/wiki/index.php/Keytool_to_OpenSSL_Conversion_tips

Back from a long break

noreply@blogger.com (DJ) — Mon, 19 Oct 2009 19:07:00 +0000

As you can, i will start to post again, hopefully on a regular basis :-) Found a nice tool to edit my blogs on my mac, which normally should help to increase the number of posts here.

Additionally i also moved hosts, previous this blog was located on dreamhost, but the speed was really become to slow for me to decently create quick posts. I therefore decided to move to blogger and was able to find a port of on my favorite themes :)

PCHealth mistery on Windows boot disk

noreply@blogger.com (DJ) — Mon, 19 Oct 2009 19:05:00 +0000

Had a problem today on of our internal web servers and it was not the first this happened. C: disk was full and biggest files were found back in C:\Windows\PCHealth\ErrorRep\QSIGNOFF. A quick google and the answer was found : simply disable error reporting!

Source: http://bdbits.wordpress.com/2008/04/23/reclaiming-space-on-your-windows-servers-c-drive/

How to backup Gmail with fetchmail

noreply@blogger.com (DJ) — Tue, 07 Apr 2009 19:32:00 +0000

I still need to test this out myself and i'll post a summary when i have everything up and running, but in the meantime you can find some interesting reads here:

- http://www.dissociatedpress.net/2009/02/18/back-up-gmail/
- http://lifehacker.com/software/gmail/geek-to-live--back-up-gmail-with-fetchmail-235207.php
- http://grimstveit.no/jakob/blog/2005/12/08/using-fetchmail-against-gmail-over-ssl/
- http://www.marksanborn.net/freebsd/using-fetchmail-to-backup-gmail-with-freebsd/
- http://www.wains.be/index.php/2008/03/19/backup-your-gmail-account-in-maildir-format-using-fetchmail/

How to configure a user on SUN Solaris 10

noreply@blogger.com (DJ) — Wed, 04 Feb 2009 21:59:00 +0000

edit /etc/passwd and update the shell, for example, i want to configure bash for root
root:x:0:0:Super-User:/:/usr/bin/bash

log out and log in again to verify.

within your home folder, also specified in /etc/passwd, above example sets / as the home folder for root, create a .profile file with the following content

export TERM=vt100
export PS1="\$USER@$HOSTNAME:\w> \[\e[0m\]"

this will set your terminal to vt100, which allows for easy editing and does some formatting on your prompt :-)
check http://en.wikipedia.org/wiki/PS1 for more info!

How to configure NTP on SUN Solaris 10

noreply@blogger.com (DJ) — Wed, 04 Feb 2009 21:07:00 +0000

cp /etc/inet/ntp.server /etc/inet/ntp.conf

edit the ntp.conf file.

Syncing to an external NTP server:

(see http://www.pool.ntp.org/ for a list of public time servers)

change `server 127.127.XType.0`
to `server time_server`

you can add multiple servers also, for example:

server 0.be.pool.ntp.org
server 1.be.pool.ntp.org
server 2.be.pool.ntp.org
server 3.be.pool.ntp.org

comment out `fudge 127.127.XType.0 stratum 0`

touch /var/ntp/ntp.drift
svcadm enable svc:/network/ntp

----------------------------------------
Configuring an NTP Client in Solaris 10:
----------------------------------------

cp /etc/inet/ntp.client /etc/inet/ntp.conf
svcadm enable svc:/network/ntp

Happy New Year

noreply@blogger.com (DJ) — Thu, 01 Jan 2009 12:57:00 +0000

I wish you a Happy New Year and all the best for 2009!

SSL-certificaatsysteem gehackt

noreply@blogger.com (DJ) — Tue, 30 Dec 2008 21:15:00 +0000

Dit is geen goed nieuws op het einde van het jaar ...

Taking Screenshots in Mac OS X

noreply@blogger.com (DJ) — Tue, 23 Dec 2008 20:54:00 +0000

I used the Grab app, but there are many ways ..