Transport Layer Security (TLS) are cryptographic protocols designed to provide communications security over a computer network, typically between a website and a browser. TLS 1.0 and its deprecated predecessor, SSL are vulnerable to some well-known security issues such as POODLE and BEAST attacks. According to NIST, these vulnerabilities cannot be fixed or patched, therefore all companies, … [Read more...]
How to Fix SMTP 550 5.7.1 Unable to Relay Error on Windows Server 2012 R2
Here is one way of fixing an SMTP error on Windows Server 2012 when you see an error message similar to the one below: Error Message Steps to Add Localhost to the SMTP Relay Launch IIS 6.0 Manager. Right-click on the STMP Server (on this example it's named default, but it could be named something else) and select Properties. Click on the Access tab and at the very bottom … [Read more...]
How to Troubleshoot Response Buffer Limit Exceeded Error in Classic ASP
How do you troubleshoot a classic ASP website when it crashes with the following error message? Turn Off Page Buffering By default, page buffering in ASP is set to On so one way to do it is just to turn off the page buffering. At the top of your ASP page, add the following line after the VBScript declaration (Line 2 - highlighted): In general though, you do want to pose a limit … [Read more...]
How to Cache Specific Static Files and Directories on IIS
As part of IIS performance tuning to improve a web page load speed, in general you want to enable browser caching by double-clicking on HTTP Response Headers in IIS Manager, click on Set Common Headers and check the Expire Web content:, then set the After: with an x number of days. Often times though, you may want to be more granular in IIS static content caching for different type of … [Read more...]
How to Fix Invalid SendUsing Configuration using CDO
When you use CDOsys to send email from a classic ASP, you might see an error message below and if you look at the line error, it's always on the message.Send: Several posts would suggest that you put the SMTP server in the code. But when you already have an SMTP server setup on IIS 6.0, here's a couple things you might want to check as well: Check if the Application Pool is at least … [Read more...]
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