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Hi, in the application log i notice this exception on captchaimage.ashx
Event code: 3005 Event message: An unhandled exception has occurred. Event time: 14/12/2009 12.23.55 Event time (UTC): 14/12/2009 11.23.55 Event ID: ed93c0ac1cc8438f93c6ce037b384822 Event sequence: 5 Event occurrence: 1 Event detail code: 0 Application information: Application domain: /LM/W3SVC/479084390/Root-1-129052633498125000 Trust level: Full Application Virtual Path: / Application Path: ***\****\ Machine name: SERVERINO Process information: Process ID: 940 Process name: w3wp.exe Account name: NT AUTHORITY\SERVIZIO DI RETE Exception information: Exception type: CryptographicException Exception message: Padding is invalid and cannot be removed. Request information: Request URL: http://***/CaptchaImage.ashx?spec=74GfOprjmBvAn unhandled exception has occurred.BQZYG5yQGXTl8hYZAn unhandled exception has occurred.BAnontBeVADNnyunvTST09b2iVpORQfHinfNY Request path: /CaptchaImage.ashx User host address: 61.247.222.83 User: Is authenticated: False Authentication Type: Thread account name: NT AUTHORITY\SERVIZIO DI RETE Thread information: Thread ID: 1 Thread account name: NT AUTHORITY\SERVIZIO DI RETE Is impersonating: False Stack trace: at System.Security.Cryptography.RijndaelManagedTransform.DecryptData(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount, Byte[]& outputBuffer, Int32 outputOffset, PaddingMode paddingMode, Boolean fLast) at System.Security.Cryptography.RijndaelManagedTransform.TransformFinalBlock(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount) at Subkismet.Captcha.CaptchaBase.DecryptString(String encryptedEncodedText) Custom event details: Per ulteriori informazioni, consultare la Guida in linea e supporto tecnico all'indirizzo http://go.microsoft.com/fwlink/events.asp.
Event code: 3005 Event message: An unhandled exception has occurred. Event time: 14/12/2009 12.23.55 Event time (UTC): 14/12/2009 11.23.55 Event ID: ed93c0ac1cc8438f93c6ce037b384822 Event sequence: 5 Event occurrence: 1 Event detail code: 0 Application information: Application domain: /LM/W3SVC/479084390/Root-1-129052633498125000 Trust level: Full Application Virtual Path: / Application Path: ***\****\ Machine name: SERVERINO Process information: Process ID: 940 Process name: w3wp.exe Account name: NT AUTHORITY\SERVIZIO DI RETE Exception information: Exception type: CryptographicException Exception message: Padding is invalid and cannot be removed. Request information: Request URL: http://***/CaptchaImage.ashx?spec=74GfOprjmBvAn unhandled exception has occurred.BQZYG5yQGXTl8hYZAn unhandled exception has occurred.BAnontBeVADNnyunvTST09b2iVpORQfHinfNY Request path: /CaptchaImage.ashx User host address: 61.247.222.83 User: Is authenticated: False Authentication Type: Thread account name: NT AUTHORITY\SERVIZIO DI RETE Thread information: Thread ID: 1 Thread account name: NT AUTHORITY\SERVIZIO DI RETE Is impersonating: False Stack trace: at System.Security.Cryptography.RijndaelManagedTransform.DecryptData(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount, Byte[]& outputBuffer, Int32 outputOffset, PaddingMode paddingMode, Boolean fLast) at System.Security.Cryptography.RijndaelManagedTransform.TransformFinalBlock(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount) at Subkismet.Captcha.CaptchaBase.DecryptString(String encryptedEncodedText) Custom event details:
Per ulteriori informazioni, consultare la Guida in linea e supporto tecnico all'indirizzo http://go.microsoft.com/fwlink/events.asp.
It's my fault?
Mojoportal runs well on my w2k3 server, and the captcha does not get error
I see these errors occasionally in my log and I attribute them to crawlers poking around, I have not correlated it to any real users getting errors in the UI.
Best,
Joe
yes, in fact i saw that that ip address is from a bot of the korean search engine naver
maybe i should ban them, i read that they ignore the robots.txt and crawl specifically in forbidden directories
visits from a successful search from naver: 0