Webserver Configuration

For simple Apache certificates try SimpleApacheCert, or ApacheServer and VhostsApache for multiple sites on one IP address
client certificate login - Apache,
client certificate login - MS IIS versions 8.0 and 8.5
Multiple sites & certificates on one IP address using SNI for MS IIS 8.0 and 8.5
MicrosoftServer (IIS 4.0, 5.0, 6.0, 7.0, 8.5)
what is a CSR ???
TOOL to Analyze your CSR
Problems with Certificates/SSL and Exchange2003 System Manager
nginx webserver
- probably similar to apache,
- certs placed in /etc/ssl/private and /etc/ssl/certs