Category Web servers

HTTPS

http://blog.hartleybrody.com/https-certificates/ Public Key Encryption Diffie-Hellman Symmetric Key Encryption Authentication Certificates

IIS authentication

IIS provides a variety of authentication schemes: Anonymous Basic Digest Integrated Windows authentication Client Certificate Mapping Details could be found here as Reference: http://msdn.microsoft.com/en-us/library/aa292114(v=vs.71).aspx There are often problems where you want to set up a quick access for verification, but failed. Here is one sample of troubleshooting. 401 – Unauthorized: Access is denied due to […]

WebSphere JVM heap dump

Question How to generate a heapdump without waiting for an OutOfMemoryError condition to occur. Answer Occasionally a heapdump needs to be generated without waiting for an OutOfMemoryError condition to occur. For example: an OutOfMemoryError will probably cause a system outage. On a production system this is not a desired event. If we manually create a […]

Apache/tomcat access log

Apache(web server/HTTP server) and tomcat basically sharing similar configuration for access log. Turning ON and OFF the log: Apache HTTP server (configuration file of httpd.conf normally located in “conf” folder): the logging is defined by a CustomLog directive for access logs and an ErrorLog directive for error logs. For example, CustomLog /usr/local/apache/logs/access_log common ErrorLog “logs/error_log” Note: […]