Issuer=/C=BE/O=GlobalSign nv-sa/CN=AlphaSSL CA - SHA256 - G2
Subject=/C=BE/OU=Domain Control Validated/CN=ma.ttias.be $ openssl s_client -showcerts -connect ma.ttias.be:443 This will connect to the host ma.ttias.be on port 443 and show the certificate. The -text flag tells it to output the certificate details in text form. The -noout flag keeps it from outputting the (base64-encoded) certificate file itself, which we dont need. To connect to a remote host and retrieve the public key of the SSL certificate, use the following command. openssl x509 -noout -text This takes the certificate file and outputs all its juicy details. You can read the contents of a PEM certificate (cert. You may want to monitor the validity of an SSL certificate from a remote server, without having the certificate.crt text file locally on your server? You can use the same openssl for that. By Arunkumar Unpublished If the certificate is in text format, then it is in PEM format. Read the SSL Certificate information from a remote server The openssl tools are a must-have when working with certificates on your Linux server. Subject: C=BE, OU=Domain Control Validated, CN=ma.ttias.be Issuer: C=BE, O=GlobalSign nv-sa, CN=AlphaSSL CA - SHA256 - G2 Signature Algorithm: sha256WithRSAEncryption $ openssl x509 -text -noout -in certificate.crt Linux users can easily check an SSL certificate from the Linux command-line, using the openssl utility, that can connect to a remote website over HTTPS, decode an SSL certificate and retrieve the all required data. Here’s what it looks like for my own certificate. It will display the SSL certificate output like expiration date, common name, issuer, …
$ openssl x509 -text -noout -in certificate.crt However, you can decrypt that certificate to a more readable form with the openssl tool. MIIEzTCCA7WgAwIBAgISESHAjlbjcoBHxBYXS12oY6VjMA0GCSqGSIb3DQEBCwUAĬzgXBhDR3themzPx4jwx2ckNFpNDK/6yQgrKaHTewAAj If you have your certificate file available to you on the server, you can read the contents with the openssl client tools.īy default, your certificate will look like this. Read the SSL Certificate information from a text-file at the CLI
#Openssl view certificate how to
This guide will show you how to read the SSL Certificate Information from a text-file on your server or from a remote server by connecting to it with the OpenSSL client.
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