Test GSM Modem Using minicom

If you want to test your GSM modem before running any application such as SMS gateway, a lightweight application called minicom can be used for this purpose. To install minicom,…

How to Verify SSL Certificates

How to Verify SSL Certificates   openssl x509 -in -text -noout Example: openssl x509 -in nagios.crt -text -noout Output: Not Before: Mar 29 09:38:10 2011 GMT Not After : Jan…