988 reputation
616
bio website harryjohnston.wordpress.com
location New Zealand
age 46
visits member for 3 years, 3 months
seen Dec 20 at 22:09

I work in the technical support group of the School of Computing and Mathematical Sciences, The University of Waikato, New Zealand. My primary responsibility in this role is maintenance and support for several computer labs, comprising over 200 Windows PCs used for teaching.

I am married with two sons, aged 11 and 8.

I can be contacted at harry.maurice.johnston@gmail.com.


Aug
5
comment How can I prevent the locally administered bit being set on network bridge MAC addresses in Windows?
@DavidSchwartz: I see two likely explanations. One is that Windows might not be able to cope with having two adapters with the same MAC address, even if one of them isn't being used. The other is that it might be doing it deliberately so that the network administrator can tell if something dodgy is going on. As a security measure that would be pretty weak, of course, but Windows is full of similar cases.
Aug
2
comment %ProgramFiles% differences on 64bit Windows
On my machine, in a 32-bit command shell, echo %programfiles% still returns the 32-bit path. There is, however, a variable named ProgramW6432 which points to the 64-bit path.
Jul
31
awarded  Enthusiast
Jul
27
comment Single-threaded application being balanced across CPU cores?
The programmer can lock an application to a particular CPU core if they want to, but there's rarely a good reason to do so.
Jul
25
comment Windows 2003 service: disable message “the memory could not be written”
I don't think that's normal behaviour. It may be the runtime library doing it; do you know what language the service was written in?
Jul
24
comment How do I deploy MS hotfix KB959628 exe/msp via a gpo easily?
@user129472: startup scripts always run with admin rights.
Jul
23
comment On Windows: is it safe to do a robocopy in order to clone the system?
Additionally, note that it is not safe to promote a cloned server to a domain controller. If an instance of Windows is going to be a DC, it must be installed via Windows Setup. Failing to follow this precaution can cause a variety of very odd symptoms.
Jul
23
comment On Windows: is it safe to do a robocopy in order to clone the system?
Addressing the particular case of domain controllers: note that there is no safe way to clone a domain controller, because doing so messes up the Active Directory replication. I'm fuzzy on the details, but basically each DC has a unique identifier that is essential to keeping the sequence of AD changes consistent. If two DCs try to use the same identifier the whole system collapses in a screaming heap.
Jul
23
comment On Windows: is it safe to do a robocopy in order to clone the system?
ImageX does not generate a block-level copy of the disk, it is definitely file-based. (It does, of course, generate an "image file" but this is more like a zip file than, say, an iso.) ImageX is the one and only support way to do this.
Jul
20
revised options for a natively supported, remote file transfer on Windows Server 2008 R2
edited tags
Jul
20
comment options for a natively supported, remote file transfer on Windows Server 2008 R2
You could use IIS, with https and client certificates. Unless you have someone on-deck with expertise configuring IIS, though, it would be both simpler and safer to buy a third-party SSH server.
Jul
18
comment Broken trust relationship not corrected even after leaving and joining domain with new computer name
@HopelessN00b: I don't see how you can rule out a problem with Windows Firewall. He doesn't appear to have any network connectivity at all, and Windows Firewall could certainly do that if it was configured to block outgoing traffic.
Jul
18
comment Broken trust relationship not corrected even after leaving and joining domain with new computer name
Does ping work if you use an IP address instead of a DNS name?
Jul
18
comment Windows 7 Trust issues
Another common reason: the network is broken. (You'd think this was self-evident, but apparently not.)
Jul
18
answered Broken trust relationship not corrected even after leaving and joining domain with new computer name
Jul
17
answered Do Windows virtual machines suffer from entropy shortage too?
Jul
15
comment Multi-homed domain controller, web host, etc
Note that turning off "register this connection's addresses in DNS" on a domain controller used to break AD. I don't know whether or not this has been fixed.
Jul
15
comment Multi-homed domain controller, web host, etc
Note that multi-homed domain controllers are not recommended. See for example social.technet.microsoft.com/Forums/en-US/winserverDS/thread/… or social.technet.microsoft.com/Search/…
Jul
13
comment Why won't Windows XP firewall use domain settings on boot?
Note that this problem (and the solution) apply to Windows Server 2003 as well as to XP.
Jul
13
awarded  Organizer