Posted by: Joel Larkin
on Apr 10, 2008
I decided rather recently to rebuild my VMware Server running on RedHat Enterprise Linux 5 (RHEL5) with Windows 2008 Enterprise Core running Hyper-V. I currently use a Dell PowerEdge 2950 with approximately 16GB RAM and Dual Quad Processors. To make matters more complicated I don't run any Windows Machines at home, I only have my corporate laptop running Vista. This meant that the only PC I had was in a different domain than the Hyper-V server.
This is my first “real” experience with Windows 2008 Core so I wasn't as familiar with the commands as I should be. The install was quick and without issue. Then matters got complicated. Windows Firewall was enabled complicating matters and making it difficult to work with. I ended up completely disabling the firewall until after I got things setup. After setup I enabled to firewall and everything continued to work.
On the Client I had to enable Anonymous DCOM to get Hyper-V manager to work. I then used CMDKEY to save my credentials so I didn't have to type them anymore. The first link below contained some great information on the using Hyper-V without joining the domain. There are some manual edits that have to be done of the AzMan store for Hyper-V which is pretty easy to walk through. Now, beyond some occasional hiccups with the client, things appear to work.
The following links are full of great information:
Posted by: Joel Larkin
on Mar 19, 2008
Recently I got the question of QoS at work. There were a few questions that were asked surrounding it, most specifically the following:
- How does the QoS Engine Work?
- How does this compare to a Hardware based solution such as Cisco?
- Does this impact scalability?
I was unable to answer the questions off the cuff so I did some research.
Posted by: Joel Larkin
on Mar 19, 2008
The Cisco VPN Client for Vista works great unless you want to run the 64bit versions. I installed Vista Enterprise 64bit with Service Pack 1 onto my Thinkpad T61p recently. This install went very easily and I was pleasantly surprised to find that Lenova had 64bit versions for all their software. I then went to look for a 64bit version of the Cisco VPN client and was surprised that they haven’t announced support for, nor published a beta for the Legacy client. They have a SSL VPN (AnyConnect?) version for 64bit but not the legacy client. This is surprising. Attached is a MS link for more information: http://support.microsoft.com/kb/929490
Posted by: Joel Larkin
on Jan 5, 2008
This is a two part process. First check to see if the server supports TLS by doing the following:
- telnet mail.server.com 25
220 mail.server.com ESMTP PostFix - ehlo testing
250 mail.server.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS - quit
Once you have determined that starttls is a supported command do this:
openssl s_client -starttls smtp -crlf -connect mail.server.com:25
