Citrix Online Plug-in v12: Error 2320

Odd problem today with the XenApp client, erroring each time I tried to login to any published app:

Citrix OP Error 2320


After a fair bit of digging, I found a registry key call “ClientHostedApps” here:

HKEY_CURRENT_USER\Software\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Control

Simply removing this key and re-opening the client was all it took for the client to operate and the apps to start working again.

Scripting Cisco ASA via PowerShell? Why not?!

OK, this is something I’ve been using for a while and wanted to share with you, as I’ve been asked for it a couple of times now.

I’ve got a pair of Cisco ASA’s at the perimeter of our network, and I needed a way some time ago to edit it’s configuration in a scripted manner, so, I started looking at PowerShell and SSH connections, and this didn’t get me anywhere, so I started to look at PLINK.exe. PLINK is almost a spin-off from PuTTY, a free remote connection tool that supports SSH. PLINK is scriptable, in that you can pass it a text file, and it’ll run each line of that file as seperate commands. Simply enough, the powershell script below will echo out to a file any commands you need, then start PLINK and run the code. If it’s a system that you’ve not connected to before, and don’t have the key saved in your registry, you’ll be prompted to accept it.

$ASApw = "MyPassword"
$ASAIP = "MyASAIPAddress"
$ASAUser = "MySSHUserName"
$ASAEnablepw = $ASApw

#Modifies the ASA firewall
#Starts by writing a "commands" file#
echo en >>unicode.txt
echo $ASAEnablepw >>unicode.txt
echo "conf t" >>unicode.txt
echo "show run access-group"
echo exit >>unicode.txt
echo exit >>unicode.txt

#Converts the file to ASCII format (separate file)#
$lines = gc "unicode.txt"
$lines | out-file -encoding Ascii -filepath commands.txt

#Using the command file and plink.exe connects and runs the commands #
./plink.exe -ssh -l $ASAUser -pw $ASApw $ASAIP -m commands.txt

#removes the files it created earlier#
del unicode.txt
del commands.txt

In the above example, the ASA will be asked to show it’s running config’s access-group configuration. You’ll need to modify the echo lines to get this to perform other actions (I use this script to modify static mapping entries and access-lists for example). You’ll also need to modify “$ASAIP”,”$ASAUSer” and “$ASApw” with your IP address, SSH Username and SSH password. The script assumes that the enable password matches this, but if not, edit the “$ASAEnablepw”, and add your enable password there. If you don’t like storing password this way (I don’t particularly) then you can always change these to “read-host” to request the entry from the Powershell command line.