You could also statically assign an IP address to a server in DHCP. Best of both worlds? J
John-AldrichTile-Tools From: Micheal Espinola Jr [mailto:michealespin...@gmail.com] Sent: Tuesday, May 18, 2010 3:53 PM To: NT System Admin Issues Subject: Re: Scripting IP Changes on remote devices Not often at all. There is definitely a case for either way - especially when you take into account the environment and staff into consideration. Certainly it may be the case that managing DHCP for servers might over-complicate your environment. But, I always lean toward centralized manageability. -- ME2 On Tue, May 18, 2010 at 12:01 PM, Malcolm Reitz <malcolm.re...@live.com> wrote: Other than a DoS from a rouge DHCP server, I'm not sure I see too many issues with DHCP either. That said, how often do you actually change IP addresses for a server? -Malcolm From: Micheal Espinola Jr [mailto:michealespin...@gmail.com] Sent: Tuesday, May 18, 2010 13:35 To: NT System Admin Issues Subject: Re: Scripting IP Changes on remote devices So I've heard and have worked in similar environments, but, I have never heard a convincing argument for it as a security concern. It can be quite easy in a properly planned and operated environment. I honestly dont take any aspects of IT as trivial, and I think that anything that allows for centralized control to be paramount in IT operations. As far as workload goes, I have found DHCP reservations to require less workload than independently configured hosts. Independently configured hosts are going to require more man-hours and leg work, or a good deal of scripting skill. Centralized control via DHCP is also going to be easier to hand-off to other administrators. -- ME2 On Tue, May 18, 2010 at 10:54 AM, Malcolm Reitz <malcolm.re...@live.com> wrote: There are places that prefer not to enable DHCP on server subnets for security reasons. Also, managing DHCP reservations will be a non-trivial operational workload in a dynamic data center. -Malcolm From: Micheal Espinola Jr [mailto:michealespin...@gmail.com] Sent: Tuesday, May 18, 2010 11:52 To: NT System Admin Issues Subject: Re: Scripting IP Changes on remote devices +1 If you are going to do the work of manually configuring specific IP addresses, why not do it in a way that is centrally manageable? Although you did say servers... I would still go with DHCP possible. -- ME2 On Fri, May 14, 2010 at 3:13 PM, Jonathan Link <jonathan.l...@gmail.com> wrote: Any reason to have static? Consider DHCP with reservations so this kind of transition could be managed centrally in the future? As long as your rolling out the script you could have it switch from static to dynic and be done. Of course all this is predicated on not having a major reasons to be static. On Friday, May 14, 2010, Brian Desmond <br...@briandesmond.com> wrote: > This is fairly easy to do with WMI. You just want to iterate through the IPEnabled adapters collection and there are methods to stamp WINS and DNS servers. I'd suggest inspecting the current settings and using that data to decide whether you stamp or not. WINS is a simple primary/secondary stamp, DNS is a collection you need to clear and populate. Thanks,Brian desmondbr...@briandesmond.com c - 312.731.3132 From: Sean Martin [mailto:seanmarti...@gmail.com] > Sent: Friday, May 14, 2010 2:43 PM > To: NT System Admin Issues > Subject: Scripting IP Changes on remote devices Good Morning/Afternoon, I'm looking for a little assistance with automating IP changes on several hundred servers. The vast majority will be Windows 2003 but there may be some Windows 2000 boxes mixed in there. I'm going to need to change the DNS and WINS IP addresses on our servers with static assignments. I'm thinking VB would be the best language to use, unfortunately I'm not real strong with VB so I was hoping someone might have some already written code I could manipulate (certainly not asking anyone to write anything for me!). The main problem is that I can't rely on any continuity amongst the servers. Meaning, the interface names may not be the same (LAN Connection X), and some servers may have multiple NICs for which I only need to modify one. I was hoping it would be possible to query the current configuration of the NICs and identify ones with DNS IP 1 = X and then modify those to DNS IP 1 = Y. I'd like to do this for the primary and secondary DNS and WINs references. Any pointers at all would be much appreciated. - Sean > > > > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
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