OpenVPN: Change the default TCP/UDP Ports

Hi,

sometimes it make sense to change the default ports of an OpenVPN installation, because these are those which are in case of an vulnerability scan attacked first or some company firewall rules makes it necessary.

With the

port 1194

directive in your config file the source and destination port for connections is always 1194.

For outgoing connections there are two ways to alter the source port:
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OpenVPN: Read certificate passphrase from file

Hello,

when you establish a OpenVPN connection with a password protected ceritificate you have enter the passphrase each time when OpenVPN starts.

This isn’t nice if you want to connect at system startup without an user interaction.
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VMware ESXi: Error while cloning a Disk to 2gbsparse format

Hi,

since ESXi 5.1 it is no more possible to create or clone a disk by using the 2gbsparse disk format. Because it is not supported as a VMFS vitual disk format. This disk format is only part of the Desktop Products of VMware, like VMware Workstation or VMware Player.

However in earlier version the command line tool vmkfstools could create disks and clone disks in such format. If you try this in ESXi 5.1 or later version a

~ # vmkfstools -i Disk.vmdk clone.vmdk -d 2gbsparse
“The system cannot find the file specified.”

error occurs.
 
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Java Error: Failed to validate certificate. The application will not be executed

Hi,

last week a customer had the problem that he wants to connect to the administration interface of a Brocade FC Switch but the Java Applet did not start. This error message was shown: “Failed to validate certificate. The application will not be executed”

Failed to validate certificate. The application will not be executed

Failed to validate certificate. The application will not be executed

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