how to check ssl certificate expiration date of website

For the FRM exam, candidates must submit to the GARP Association's Resume Builder within five years Cv/resume to prove that they have two years of relevant industry experience, or they must re-take the exam in order to obtain the certificate.For the FRM exam:1. After passing the first level examination examinee must pass the second level examination within four years, otherwise the examinee will have to retake the examination level and re-register;2. After passing the secondary examination, cand

, assuming your domain name is example.com Then, the concatenation command is cat example_com.crt COMODORSADOMAINVALIDATIONSECURESERVERCA.CRT COMODORSAADDTRUSTCA.CRT addtrustexternalcaroot.crt > EXAMPLE_COM.SIGNED.CRT Using Example_ in Nginx configuration COM.SIGNED.CRT If it is a common aplhassl generic d

certificate for Google domain names, so it's important to choose a reliable third-party SSL issuing agency.At present, the general market for small and medium-sized webmaster and Enterprise SSL certification authorities are:StartsslComodo/Sub-brand Positive SSLGlobalSign/Sub-brand AlphasslGeoTrust/Sub-brand RapidSSLWhich Postivie

Mozilla's official blog in 2015.4.30 formally announced the elimination of the HTTP program.These include: Setting a date, all new features will only be available to HTTPS sites, HTTP sites will be progressively blocked from accessing browser features, especially those related to user security and privacy. Mozilla's move is to send a message to the web developer community that they need to ensure the security of the site, and that only the entire web

Mozilla's official blog in 2015.4.30 formally announced the elimination of the HTTP program.These include: Setting a date, all new features will only be available to HTTPS sites, HTTP sites will be progressively blocked from accessing browser features, especially those related to user security and privacy. Mozilla's move is to send a message to the web developer community that they need to ensure the security of the site, and that only the entire web

free tool automatically deployed to the VPS server, as well as the Cpanel panel virtual host. In this article, the old left is ready to share the Encrypt certificate process using the Certbot tool to deploy the Let ' s. First, Certbot official website and select deployment version The code is as follows Copy Code

Today, online shopping has become a commonplace for most young netizens. People can not hesitate to pay on the shopping site, because today's technology has been able to provide the authenticity of online transactions and security protection. For example, when we complete a transaction online, we will be prompted to install a security certificate, when the security certificate is equivalent to the site's id

Install let ' s Encrypt client For CentOS distributions There are currently two ways to install let's Encrypt clients, one of which is a direct yum installation from the upstream Epel source, one that is downloaded from the Encrypt source of let ' s GitHub. Waterscape One page uses the following second method, downloaded from the GitHub. Two ways of installingSimple comparison: YUM installation follows the system update to update the installation package, but there is no Apache automatic inst

This article mainly introduces the use of PHP socket to obtain the SSL certificate and public key information, the text gives a detailed sample code for everyone to reference the study, for everyone has a certain reference learning value, the need for friends below to see it together. Requesting a Web page from Php Curl does not obtain the certificate informatio

This article mainly introduces the use of PHP socket to obtain the SSL certificate and public key information, the text gives a detailed sample code for everyone to reference the study, for everyone has a certain reference learning value, the need for friends below to see it together. Requesting a Web page from Php Curl does not obtain the certificate informatio

Since January 2017, Google Chrome has started to mark websites that use the HTTP protocol as "unsafe" sites. As early as 2014, Google announced that they will https/ssl into its search algorithm mechanism, the use of HTTPS/SSL security certification of the site will be Google to give more trust, so that the site in Google search results in the ranking promotion.　　 650) this.width=650; "alt=" from th

How does PHP use Socket to obtain the SSL Certificate and public key of a website? Sample Code: 12345678910111213141516171819202122232425262728293031323334353637 // Create stream context $context = stream_context_create([ 'ssl' => [ 'capture_peer_cert' => true, 'capture_peer_cert_chain' => true, ],

://$domain: $port", $errno, $errstr,, Stream_client_connect, $context); $cert Stream_context_get_params ($resource); $ssl = $cert [' Options '] [' SSL ']; $resource = $ssl [' peer_certificate ']; The website certificate only has the public key, the public key is exported thr

In my article, I mentioned how to use OpenSSL to export the SSL CA certificate from the HTTPS Web site. This method is not very intuitive, and requires the user to manually copy, and then save as a file, then there is no better and more convenient tool?Fortunately, people in the industry who are enthusiastic about open source projects provide us with a more convenient and simple tool: portecle; Using this t