openssl get server certificate

In HTTPS learning note two, the concept of digital certificates has been clarified, composed and how the client validates the server-side certificate during the HTTPS connection process. This chapter describes how to use the OpenSSL library to

OpenSSL self-built certificate SSL + Apache I have prepared it. Well, the following is my note. For details, enter the author name: wingger.In this article, we will test the certificate on Linux9 + apache2.0.52, tomcat5.5.6, j2se1.5, and

1. After OpenSSL is installed, find OpenSSL. CnF in the/usr/lib/SSL directory (for Ubuntu system, use whereis to check the SSL directory) and copy it to the working directory. 2. Create a New democafolder under the Work directory, create the new

First, you need to understand some basic concepts before installing 1. Certificates used by SSL can be self-generated or signed by a commercial ca such as Verisign or thawte. 2. Certificate concept: First, you must have a root certificate, and

ObjectiveI read a lot of information, only to write this article, if there are errors, please put forward the reader in time.In general, when you use Remote Desktop to connect to Windows Server, there is always a warning prompt, 1Figure 1This

The first part: overview。。 Part II: System Preparation1 Operating system CentOS 6.xIp:2 Installing OpenSSL Yum Install-y OpenSSL3 Installing the JDKDownload JDK http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html from

This is a tutorial from Raywenderlich, the content is informative! The structure is simple and thorough, the explanation is gradual, article quality is superior! It's a difficult blog post! Use half a bottle of English to translate a bit:1. Overview

Original address: Http://www.cnblogs.com/firtree/p/4028354.htmllinux use OpenSSL to achieve certificate issuance (detailed steps)1, first need to install OpenSSL, an open source implementation of encryption and decryption and certification of

The main file types and protocols for certificates are: PEM, DER, PFX, JKS, KDB, CER, Key, CSR, CRT, CRL, OCSP, SCEP, etc. Pem–openssl uses the PEM (privacy enhanced Mail) format to hold various information, which is the default way of storing

Use the OpenSSL to verify the certificate chain with the following command:Debian:/home/zhaoya/openssl#openssl verify-cafile Root_cert User_certThe Root_cert can contain a lot of certificates, you can use the Cat command to merge multilevel CA