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Monthly Archives: May 2011
C++ 0X feature summary cheat sheat
C++ 0X feature summary cheat sheat // based on wiki page contents: C++ 0X 2 Extensions to the C++ core language 3 Core language runtime performance enhancements 3.1 Rvalue reference and move semantics => chain function calling 3.2 Generalized constant … Continue reading
Posted in Programming
690 Comments
solution to certificate verification failed for smtp.gmail.com via update Equifax Secure Certificate Authority
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=================================== solution to certificate verification failed for smtp.gmail.com |
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via update Equifax Secure Certificate Authority |
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==================================== Error: in /var/log/mail.log May 28 12:39:10 services@iesensor.com postfix/smtp[10839]: Untrusted TLS connection established to smtp.gmail.com |
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[209.85.143.109]:587: TLSv1 with cipher RC4-SHA (128/128 bits) certificate verification failed for smtp.gmail.com[209.85.143.109]:587: untrusted issuer /C=US/O=Equifax/OU=Equifax Secure Certificate Authority -------------------- No matter you Setup the Gmail certification using the any turial, |
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just look up smtpd_tls_CAfile= in main.cf # there is no dash/undersocre between `CA` and `file` for : `CAfile` smtpd_tls_CAfile = /etc/postfix/cacert.pem https://www.geotrust.com/resources/root-certificates/index.html #Download the first Root CA 1; and use the DER version openssl x509 -inform der -in Equifax_Secure_Certificate_Authority_DER.cer |
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-out Equifax_Secure_Certificate_Authority.pem #also yo can test the certificate by typing at the command promt openssl verify Equifax_Secure_Certificate_Authority.pem #append this file content pem to the end of your file: cacert.pem sudo postfix reload test with your mail/script for example: =================================================== #!/usr/bin/python import smtplib sender = 'services@iesensor.com' receivers = ['services@iesensor.com'] message = """From: From Person <services@iesensor.com> To: To Person <services@iesensor.com> Subject: SMTP e-mail test from services@iesensor.com This is a test e-mail message from services@iesensor.com. """ try: smtpObj = smtplib.SMTP('localhost') smtpObj.sendmail(sender, receivers, message) print "Successfully sent email" except SMTPException: print "Error: unable to send email" ============================================== |
Posted in Uncategorized
594 Comments
Install fedora15 in VirtualBox with Gnome Shell Enabled
(1) Installation Virtual Box 4.0.8 is need for Gnome 3 support !!! without guest toolkit, the installation works on the fail_back mode And the turn on the 3D acceleration in “Setting | display” , install the guest toolkit, which depends … Continue reading
Posted in Uncategorized
336 Comments
Tricks to Update Toshiba/Sony notebook ATI display driver
Tricks to Update Toshiba/Sony notebook ATI display driver The PDF file with figures can be downloaded via this link: Trickes to update ATI display driver on Toshiba Sony Laptops ———————-text without figures ————————- If you run directly ‘catalyst_mobility_64-bit_util’, you will … Continue reading
Posted in Uncategorized
235 Comments
Recompile OpenFoam from double precison to single precision
Recompile OpenFoam from double precison to single precision ————Why? For, I just want to play with GPGPU Some of the ATI cards does not support double precision for openCL； use speedIT openfoam plugin on cuda platform。 Follow the instructions for … Continue reading
Posted in Uncategorized
441 Comments