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25 April 2012 0 Comments

How to find out IP address by MAC address

Sometimes you may have a MAC address but need to figure out the IP address. If you have access to a computer on the same network you may be able to look it up using the arp command (works on both Windows and Linux): arp -a

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13 April 2012 0 Comments

How to check if SSL v2 is enabled using openssl

SSL v2 is weak and outdated protocol. All modern browsers and applications support SSL v3 and that’s why you should disable SSL v2 where possible. Using this command you can check if SSL v2 is enabled: openssl s_client -connect www.example.org:443 -ssl2

30 March 2012 0 Comments

How to disable SSL v2 / enable SSL v3 on Windows 2008

SSL v2 is weak and outdated protocol. All modern browsers support SSL v3 and it’s enabled by default on Windows 2008 (IIS 7 / IIS 7.5). To make sure all clients are using SSL v3 we must disable SSL v2. This is required for PCI compliance.

8 February 2012 0 Comments

How to migrate multiple sites from IIS 6 to IIS 7

This is a quick guide on how to migrate all sites from IIS 6 to IIS 7. You can probably use the same commands to move sites from one IIS 7 to another. Everything will be migrated, including application pools, virtual directories, SSL certficiates etc. 1. Download and install Web Deployment Tool on both source [...]

13 May 2011 0 Comments

Changing file upload limits in ASP.NET on IIS 7 or greater

When uploading files greater than 28.6 MB (30000000 Bytes) with ASP.NET on IIS 7.5 using SWFUpload I’m getting this error: There has been an I/O Error: Error #2038

8 February 2011 0 Comments

Generating self-signed certificate

1. Download and install Windows SDK 2. Open command prompt as Administrator and cd to this directory: C:\Program Files\Microsoft SDKs\Windows\v7.0\Bin 2. Create a root certificate makecert -pe -n “CN=Test Root Authority” -ss my -sr LocalMachine -a sha1 -sky signature -r “c:\Test Root Authority.cer” 3. Create the new certificate and sign it with the newly generated [...]

7 December 2010 0 Comments

Error in IIS when adding secure binding because intermediate certificate is missing

Today when adding a secure binding to one of my sites in IIS 7, I got this error: One or more intermediate certificates in the certificate chain are missing. To resolve this issue, make sure that all of the intermediate certificates are installed. For more information, see http://support.microsoft.com/kb/954755.