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CentOS 7 and OpenVPN 2.3.5 (Routed)

by on Nov.05, 2014, under General, Linux, OpenVPN, Servers, Sys Admin, Windows

Decided to setup a openvpn server on a new CentOS 7 box and it was not exactly straight forward so below are the steps required, this should be enough to get started

On a (minimal) centOS 7 box:

yum -y install gcc rpm-build vim openssl-devel lzo-devel pam-devel wget
wget http://swupdate.openvpn.org/community/releases/openvpn-2.3.5.tar.gz
rpmbuild -tb openvpn-2.3.5.tar.gz

if using a seperate server for as the VPN server:

scp ./RPMS/x86_64/openvpn-2.3.5-1.x86_64.rpm server:/tmp

(continue reading…)

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MSBuild and 7Zip SFX

by on Jun.02, 2014, under msbuild, TFS, Windows

The following allows you to package up your build output into a SFX file with custom properties that appear when someone right clicks the SFX and chooses properties.

Useful if you need to create a zip that can be signed but want your company/product information to appear on the SFX.EXE.

(continue reading…)

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Update sshd_config to use Protocol 2

by on Jun.02, 2014, under AIX, shell, SunOS_Solaris, Sys Admin

Had to write an script to update SSHD to only use protocol 2 without changing any of the other settings, to be deployed via BMC Bladelogic (horrible horrible tool), but you work with what you have. The script should work across Linux, AIX and Solaris.

$> SSHProtocolUpdate.sh update [1|2]
$> SSHProtocolUpdate.sh rollback

(continue reading…)

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Convert XML and XSL to HTML

by on Oct.03, 2013, under Coding/Scripting, Sys Admin

Just a quickie. I have a script that outputs an XML file and I use an XSL file to display it but Management wanted HTML files, the thought of having to re-code the output was disheartening to say the least. I then came across “msxsl.exe” it’s a Microsoft tool that takes a XML file and a XSL file and then generates the resultant rendered output in HTML.

http://www.microsoft.com/en-gb/download/details.aspx?id=21714

Syntax:
msxsl.exe <XMLFile> <XSLFile> -o <HTMLFile>

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Changing TFS 2010 $(sourcedir)

by on Sep.03, 2013, under Sys Admin, TFS, Windows

Seemingly this can be set by editing the TfsBuildServer.exe.config on the build agent machine and changing the value of the following Key:
<add key=”SourcesSubdirectory” value=”Sources” />

On a 2010 build agent this isn’t possible (continue reading…)

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TFS queue build from powershell

by on Aug.12, 2013, under Coding/Scripting, powershell, Sys Admin, TFS, Windows

I was doing some testing on TFS and got fed up queuing new builds via right-click -> queue new build -> ok. So here is a powershell script that can be used to kick off a build.

I’ve included some extra assemblies that don’t need to be used as I have other functions that do use them in the same module file. example useage below

Queue-TFSBuild -TFSServer http://tfsserver:8080/tfs/col -Project Project1 -Definition DailyBuild

$arrAssemblies = @(
    "Microsoft.TeamFoundation.Client",
    "Microsoft.TeamFoundation.Common",
    "Microsoft.TeamFoundation.Build.Client",
    "Microsoft.TeamFoundation.Build.Workflow",
    "Microsoft.TeamFoundation.VersionControl.Client"
)
Foreach ($assembly in $arrAssemblies) {
    [void][Reflection.Assembly]::LoadWithPartialName($assembly)
}	
Remove-Variable assembly, arrAssemblies


Function Queue-TFSBuild {
    [CmdLetBinding()]
    Param (
        [Uri]$TFSServer,
        [String]$Project,
        [String]$Definition
    )

    Process {
        [Microsoft.TeamFoundation.Client.TfsTeamProjectCollection]$tfsc = [Microsoft.TeamFoundation.Client.TfsTeamProjectCollectionFactory]::GetTeamProjectCollection($TFSServer)
        $IBS = [Microsoft.TeamFoundation.Build.Client.IBuildServer]

        [Microsoft.TeamFoundation.Build.Client.IBuildServer] $buildserver = $tfsc.GetService($IBS)
        [Microsoft.TeamFoundation.Build.Client.IBuildDefinition] $BuildDef = $buildserver.GetBuildDefinition($Project,$Definition)
        [Microsoft.TeamFoundation.Build.Client.IBuildRequest] $BuildReq = $BuildDef.CreateBuildRequest();
        $buildserver.QueueBuild($BuildReq)
    }
}
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Flashing eeprom during imaging via PXE

by on Jul.11, 2013, under Coding/Scripting, Linux, Servers, shell, Sys Admin

I had a requirement to flash the eeprom on a FTDI chip while dropping a clonezilla image onto the system which is done via a PXE server

The 1st thing we need to do is get ftdi_eeprom tools on the clonezilla image, we do this by setting up an ubuntu system (I used ubuntu 12.04)

apt-get install squashfs-tools unzip

wget -O Clonezilla-2.1.2-20_amd64.zip http://downloads.sourceforge.net/project/clonezilla/clonezilla_live_stable/2.1.2-20/clonezilla-live-2.1.2-20-amd64.zip?r=http%3A%2F%2Fclonezilla.org%2Fdownloads%2Fdownload.php%3Fbranch%3Dstable&amp;ts=1373475093&amp;use_mirror=heanet

mkdir clonezilla-src clonezilla-sqfs
cd  clonezilla-src
unzip ../Clonezilla-2.1.2-20_amd64.zip
cd ../clonezilla-sqfs
unsquashfs ../clonezilla-src/live/filesystem.squashfs
cd squashfs-root/root

wget http://ftp.de.debian.org/debian/pool/main/f/ftdi-eeprom/ftdi-eeprom_0.3-2_amd64.deb
wget http://ftp.de.debian.org/debian/pool/main/c/confuse/libconfuse0_2.7-4_amd64.deb
wget http://ftp.de.debian.org/debian/pool/main/c/confuse/libconfuse-common_2.7-4_all.deb

rm *.deb

chroot ~/clonezilla-sqfs/squashfs-root
cd root

dpkg -i libconfuse-common_2.7-4_all.deb
dpkg -i libconfuse0_2.7-4_amd64.deb
dpkg -i ftdi-eeprom_0.3-2_amd64.deb

cat > ./eeprom.conf <<@
vendor_id=0x0403
product_id=0x6001
manufacturer="ME"
product="XXXXX"
serial="FTABC123"
@

exit

cd ~/clonezilla-sqfs

mksquashfs squashfs-root filesystem.squashfs -comp xz -Xbcj x86 -b 1024k

Replace the Fields above with the values you want to use most important is the two _id fields as they tell ftdi_eeprom which device to attempt to flash, you can get these by running the command “lsusb” and identifying the device.

Copy the file “filesystem.squashfs” that has just been created and overwrite the one on the PXE server used to deploy the image. When you next PXE boot the target machines you will find ftdi_eeprom is available to use.

Now during the deployment run the command
ftdi_eeprom –flash-eeprom /root/eeprom.conf

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Get Numeric Values from an Enum in powershell

by on Jul.10, 2013, under Coding/Scripting, powershell, Sys Admin, TFS

I needed to get the values for a enum in order to generate the correct flags for a function call here’s how to do it.

[Enum]::GetValues(<enumType>) will return a list of all the values

<enumType>::<value>.value__ will return the numeric value enum

[Enum]::GetValues([Microsoft.TeamFoundation.Build.Client.BuildStatus]) | foreach {
$Name = $_
$Value = ([Microsoft.TeamFoundation.Build.Client.BuildStatus]::$_).value__
Write-Output "$Name = $Value"
}
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Puppeteering with Puppet

by on Mar.20, 2013, under Linux, Puppet, Servers

So I’ve been a very naughty sysadmin recently, one of the things I intended to do early on in my new employment was setup some form of System Management as we have several Linux hosts. However truth be told I have never had a System Management system for Linux hosts (due to a lack of time to implement one) and due to a number of tight deadlines I’ve had to put this on the back burner and spin up servers for additional roles.

This road however will lead to ruin so I have put a stop to the random spinning up of hosts for anything other than testing until I get something in place to mange all the configurations centrally. The question for me was what to use, I’ve heard of both Puppet and Chef, but I have no experience of them. So after doing a bit of reading I figured I’d go with Puppet as it seems to have most of the bases I am interested in covered.

(continue reading…)

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SCCM CDP to WMI version 0.0.0.3 out

by on Jan.06, 2013, under C++, CDP to WMI, Cisco, Coding/Scripting, Projects, SCCM SMS, Sys Admin, Windows

Sorry for the lack of progress until recently but I’ve recently had a lot of more important priorities in life so working on this had to go on hold for a little while. I am hoping in the next few months to release version 1.0 but as on now this is still experimental so should only be used in a lab environment.

Please use the ticketing system on sourceforge to report any issues and add feature requests.

You can get it here: http://sourceforge.net/projects/cdptowmi/

ToDo:

See here: https://sourceforge.net/p/cdptowmi/wiki/ToDo%20List/ (work in progress)

(continue reading…)

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