drstalker - Page 2 - Developer IT

Cisco ASA - NAT'ing VPN traffic

- by DrStalker

I have an IPsec VPN setup like this: [Remote users]-[Remote ASA] <-VPN-> [My ASA]-[Subnet A]-[Router 2]-[Subnet B] The VPN is set to handle traffic between [remote users] and [Subnet A]; it does not include [Subnet B]. Pretend the firewall rules for all routers are to permit everything. Now I want to redirect traffic that comes over the VPN to a specific IP on [subnet A] (192.168.1.102) to an IP on [Subnet B] (10.1.1.133) If I add a rule on [My ASA] to NAT traffic to original IP 192.168.1.102 to new IP 10.1.1.133, 1) Will this affect the connections coming in over the VPN? (ie: the VPN packets are unencrypted and then NAT is applied) 2) Will this work when the post-NAT target is on Subnet-B, which is not part of the VPN traffic selection?

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IIS: redirect everything to another URL, except for one Directory

- by DrStalker

I have an IIS server (IIS 6, Win 2003) that hosts the site http://www.foo.com. I want any request to http://foo.com (no matter what path/filename is used) to redirect to http://www.bar.org/AwesomePage.html UNLESS the request is for http://www.foo.com/specialdir, in which case the HTML files in the local directory specialdir should be used. The problem I have is once the redirect is set it also affects /specialdir - even if I right click on that directory and select "content should come from ... local directory" that change does not take effect, and the directory still shows as redirecting to http://www.bar.org/AwesomePage.html. The same thing happens if I try to set individual files to load from the local system instead of redirecting - IIS gives no error, but the change does not take effect and the files still show as being redirected. How can I set specialdir to override the redirection to the new URL?

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Windows 7 x64: TrustedInstalled.exe is missing

- by DrStalker

Windows 7 Ultimate x64. The TrustedInstaller service is failing to start with an error about a file missing, and sure enough C:\Windows\servicing\TrustedInstaller.exe is missing. What is the easiest way to restore this file? I can't run SFC from within Windows, because that results in the error "Windows Resource Protection could not start the repair service"... which happens if the trusted installer service is not running.

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Restrict Apache to only allow access using SSL for some directories

- by DrStalker

I have an Apache 2.2 server with an SSL certificate hosting several services that should be only access using SSL. ie: https://myserver.com/topsecret/ should be allowed while http://myserver.com/topsecret/ should be either denied or, ideally, redirected to https. http://myserver.com/public should not have this restriction, and should work using either http or https. The decision to allow/deny http is made at the top level directory, and affects all content underneath it. Is there a directive that can be placed in the Apache config to retrict access in this manner?

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Are Oracle Database CPU license limits enforced by software, and how do I check them?

- by DrStalker

I've inherited a windows VM running Oracle Database 10g. Currently the VM has only one CPU assigned to it, but I can boost this up to 4 with our VMWare licenses. What I'm not yet certain about is if the Oracle Software will get upset. Are Oracle DB CPU limits enforced by software, and if so how do I find out what they? If it's just a legal enforcement I'll hunt through the mass of unsorted paperwork I have left from previous managers to find what we're licensed for, but a quick software check would be nice.

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vSphere 4 - how can I cancel a file copy in progress?

- by DrStalker

VMware vSphere 4 SAN storage with multiple data-stores No vCenter I shut-down a virtual machine and using the data-store browser did a copy/paste to copy the VM to a new datastore with additional space. The file copy performance was very poor, and due to time constraints I decided to cancel the copy task. However the copy task showing in the vsphere client can not be cancelled; the cancel option is disabled. Currently I am not able to start the machine in it's original location as the disk files are locked for the copy. How can I abort the copy? I tried deleting the target directory but this did not abort the copy task.

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Get UPN or email for logged in user in a .NET web application

- by DrStalker

I'm not a .NET developer, and I have a feeling this would be trivial for someone who is: I have a C# web application that makes user of the user credentials of the logged in user. Currently it uses the SID which comes from System.Security.Principal.WindowsIdentity.GetCurrent().User.Value I need to get either the users UPN login or email address (as defined in active directory) instead of the SID. GetCurrent() returns an object of type WindowsIdentity; looking in the details for WindowsIdentity Members: MSDN: WindowsIdentity Members I can't see anything that looks like it would give me either the UPN or email in there. How can I pull up that information to use, either by feeding the SID into some other function or calling something different in the first place.

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What things didn't you know you needed but are now very glad you have?

- by DrStalker

Take a programmer that has never used source control, show them what it does, and their eyes light up... the benefits are obvious but until they actually see it most people had never considered the existence of such a tool. What other such things exist? Tools or approaches or techniques that aren't obvious before you encounter them, but once seen have obvious value. Things that are likely so ingrained in the way you work that it's hard to think of working without them, things almost embarrassing to bring up because you expect the other person to say "duh, that's obvious!" No matter how petty something seems there is a chance that other people don't know about it yet; I'd like to get an idea on what things I'm missing simply because I never thought of them.

Developer IT