6,221 reputation
14385
bio website dunxd.com
location London, United Kingdom
age 39
visits member for 4 years, 11 months
seen Dec 10 at 14:23

I work at a large international development charity in London, as International Operations Manager. I manage a team of Regional ICT Service Managers, based in developing world countries, who keep our users happy through fixing problems, setting up great connectivity and generally making sure users can do their day jobs.

I previously worked at the same place as International Network Systems Analyst. I looked after a bunch of ICT systems in offices in the developing world, as well as looking after systems in our HQ. I gained a lot of knowledge in that job, and the techy side competes with the people stuff in the new role, hence I still hang out here a lot.

I'm passionate about the use of ICT in developing countries, both in terms of dealing with the inherent problems for ICT in those places, and using ICT as a tool for development.


Nov
26
comment Domain computer cannot resolve internal hostnames, but nslookup can
You get the bounty. It may not have solved the problem (I can't know now as I had to take drastic action), but you did put something down as an answer, and provided links to useful material - I didn't know about node type before and now I do, so thanks.
Nov
22
comment Domain computer cannot resolve internal hostnames, but nslookup can
In the end time ran out for investigation, and I had to take the drastic action of rebuilding the effected laptops. Bith are now functioning fine getting their settings from DHCP, as they were before, and no change to networking configuration or DNS. Still scratching my head, but in the end I spent more time investigating than it took to re-image both laptops and restore the backed up user data. Sometimes the best way to serve your users is to just get the job done, even if it isn't in an intellectually satisfying way.
Nov
20
comment Domain computer cannot resolve internal hostnames, but nslookup can
Hosts file is unchanged from default with Windows install. There are two computers on the network I am aware of with this problem. One has been made to workaround the issue by adding common internal hosts to the hostfile, buit clearly that isn't sustainable for any length of time. The network settings for all clients are set to "Register this connection's addresses in DNS" - the same settings are in place for all other clients on the network.
Nov
19
comment Domain computer cannot resolve internal hostnames, but nslookup can
I already tried removing the computer from the domain - but since the computer cannot locate the domain in DNS it is unable to do so.
Nov
19
comment Domain computer cannot resolve internal hostnames, but nslookup can
I also tried setting the network interface to use a different DNS server (in a different subnet) but getting the same results. That really looks like it is something on the client causing the problem.
Nov
19
comment Domain computer cannot resolve internal hostnames, but nslookup can
No - listening on all IP addresses. And it does respond to nslookup from the client (and other computers in the same subnet are working ok). Pretty sure that local Windows is not processing DNS lookups to computers in the domain either using a FQDN or bare hostname.
Nov
19
comment nslookup cannot resolve hostname for machine on external domain from internal domain
Updated the answer as comment above.
Nov
19
comment Domain computer cannot resolve internal hostnames, but nslookup can
Packet captures done, and results added to the questions. Why would Windows decide to not do DNS resolution for internal hostnames, whether using FQDN or not.
Nov
19
comment Domain computer cannot resolve internal hostnames, but nslookup can
Yes - returns the DNS suffix set by DHCP. It is correct.
Sep
15
comment VMware ESXi shutdown triggered by APC UPS connected via USB
That is a damn solid answer. Many thanks!
Jul
7
comment NPS will not add Radius client
Not only that, it doesn't even evaluate a CIDR IP address to check how many clients are covered - I'm using a /27 which is only 30 addresses. I tested all the way to /32 and the error message is always returned. I'd class this as a bug.
Jun
10
comment DNS resolution failing over to secondary DNS - why?
That is a great link that explains in more detail and more clearly, and is up to date for Windows 7. Thanks!
Jan
21
comment Which field to use when authenticating against Active Directory?
Thanks for that - I was looking for the formats they accepted in the paramter list, but they put it in remarks. Great.
Jan
20
comment Which field to use when authenticating against Active Directory?
Does LookupAccountName accept UPN or sAMAccountName or fully qualified DOMAIN\sAMAccountName, or all of the above? It isn't clear from the documentation you link to.
Jan
20
comment Which field to use when authenticating against Active Directory?
Thanks for the answer, and the function to call - I can go to our development team with an easy answer to their questions!
Jan
20
comment Which field to use when authenticating against Active Directory?
Thanks - great answer providing links to some documentation I hadn't managed to locate. Excellent!
Jan
16
comment Which field to use when authenticating against Active Directory?
I've encountered a few applications (both internally developed and things other people have done) that authenticates through LDAP using the cn field. This field now gets updated automatically in AD Admin Center (it's labelled Full Name) if you change the first or last name fields, meaning you can't assume that the cn field can be considered a username field. Have these developers been using the wrong field, or has Microsoft broken cn?
Nov
26
comment How can I run a scheduled task on a Windows 2008 R2 Domain Controller as a non-admin user?
I checked and the user was already a member of this group - that hasn't enabled them to run this script.
Nov
20
comment Fetching all PHP files and store their size
It's not that people don't like links. Its answers that ONLY have links - so don't do much more than Google, and if the link goes dead all the value of the answer is gone. But you seem wilful in not understanding this, so welcome to your downvotes...
Sep
19
comment How to check who blocks ICMP during MTU path negotiation?
In my experience, many ISP have some network equipment which has enough of ICMP blocked to break Path MTU Discovery. I suspect some vendor is shipping equipment with this blocked by default. This results in some ISPs having some routers/switches where PMTUD breaks - dynamic routing makes the problem intermittent. Traceroute and ping used correctly can help you determine where the problem arises.