Apache Tomcat is a long-lived, open source Java servlet container that implements several core Java enterprise specs, namely the Java Servlet, JavaServer Pages (JSP), and WebSockets APIs. The Apache Tomcat ® software is an open source implementation of the Jakarta Servlet, Jakarta Server Pages, Jakarta Expression Language, Jakarta WebSocket, Jakarta Annotations and Jakarta Authentication specifications. These specifications are part of the Jakarta EE platform. The Jakarta EE platform is the evolution of the Java EE platform. Tomcat 10 and later implement specifications. Tomcat is a Application Server. It is possible to run Web application ARchive (WAR) files using Tomcat. Apache Tomcat requires a JDK in order to run. JDK (Java Development Kit) is required. It can be any JDK compatible with Oracle JDK 8. It was not listed as dependency, in order to support different variations of JDK. 3032 Tomcat: Power for Deep Concealment. Comparable in size to a smartphone, the Beretta 3032 Tomcat is tiny while offering the power of the.32 ACP cartridge. As such, this double/single-action autopistol it is perfect for deep concealment or used as a backup second handgun.
An example of a tomcat is a sexually active male cat.
Origin of tomcat
- From Tom + cat, popularised by The Life and Adventures of a Cat (1760), by an anonymous author, in which the male cat was called Tom.
Use Java's Keytool to create a CSR and install your SSL/TLS certificate on your Tomcat (or other Java-based) server
Use these instructions to generate your certificate signing request (CSR) and install your SSL/TLS certificate on your Tomcat server using Java’s Keytool.
Restart Note: After you've installed your SSL/TLS certificate and configured the server to use it, you must restart the Tomcat service.
To create your certificate signing request (CSR), see Tomcat Server: Create Your CSR with Java Keytool.
To install your SSL certificate, see Tomcat Server: Install and Configure Your SSL/TLS Certificate.
To view these instructions in Spanish, see CSR para Tomcat and Tomcat Instalar Certificado SSL.
If you are looking for a simpler way to create CSRs, and install and manage your SSL/TLS certificates, we recommend using the DigiCert® Certificate Utility for Windows. You can use the DigiCert Utility to generate your CSR and prepare your SSL/TLS certificate file for installation on your Tomcat server. See Tomcat: Create CSR & Install SSL/TLS Certificate with the DigiCert Utility.
I. Tomcat Server: Create Your CSR with Java’s Keytool
Use the instructions in this section to create a new keystore (.jks) file and to generate your CSR.
Recommended Method: Use the DigiCert Java Keytool CSR Wizard
Tomcat Rat Poison
Save yourself some time: Use the DigiCert Java Keytool CSR Wizard to generate a Keytool command to create your Tomcat keystore and CSR.
Simply fill out the form, click Generate, and then paste your customized Java Keytool command into your terminal.
The Java keytool utility creates both your private key and your certificate signing request, and saves them to two files: your_common_name.jks, and your_common_name.csr.
You can then copy the contents of the CSR file and paste it into the CSR text box in our order form.
Skip to Step 2, part 3: Save and Back-up Your Keystore File.
Do you prefer a more manual approach to generating your Tomcat keystore and CSR? Follow the instructions below.
Step 1: Use Keytool to Create a New Keystore
Important: We recommend you generate a new keystore following the process outlined in this section. Installing a new certificate to an old keystore often ends in installation errors or the SSL/TLS certificate not working properly. Before you begin this process, backup and remove any old keystores.
Navigate to the directory where you plan to manage your keystore and SSL/TLS certificate.
Enter the command below.
In the command above, your_site_name should be the name of the domain you want to secure with this SSL/TLS certificate. When ordering a Wildcard certificate, do not include the asterisk (*) in the filename (e.g., your_site_name). The asterisk is not a valid keytool character.
Create a Password
When prompted, create a password for your Keystore.
Note: You will specify this password in your Tomcat configuration file and then use it to generate your CSR and to import your certificate.
Store this password somewhere safe, such as a trusted and secured password manager.
Enter your SSL/TLS certificate information.
Important: When prompted for the first and last name, DO NOT type your first and last name. Instead, type the Fully Qualified Domain Name (FQDN) for the site you are securing with this certificate (e.g., www.yourdomain.com, mail.yourdomain.com). Are you are ordering a Wildcard Certificate? Then your FQDN must begin with an asterisk (*). (e.g.,*.yourdomain.com).
Enter your Organization information.
When prompted to verify your information, type y or yes to confirm.
When asked for a 'key password for <server>', press enter to use the password you just created for the keystore file.
Your keystore file, your_site_name.jks, is now created and in your current working directory.
Step 2: Generate a Certificate Signing Request (CSR) from your New Keystore
In Keytool, type the following command:
In the command above, your_site_name should be the name of the keystore file you created in Step 1: Use Keytool to Create a New Keystore or when using the DigiCert Java Keytool CSR Wizard.
When prompted, enter the password you created earlier (when you created your new keystore).
In your current directory, csr.txt (e.g., your_site_domain.txt) now contains your CSR.
Save and Back-up Your Keystore File
Take note of the path to your keystore file (your_site_domain.jks) as your SSL/TLS certificate will be installed to it later.
We recommend that you create a back-up copy of your Keystore file (your_site_domain.jks) before continuing. Having a back-up of the Keystore file can help resolve issues that may occur during certificate SSL/TLS installation.
Order Your SSL/TLS Certificate
Open the .csr file you created with a text editor.
Copy the text, including the -----BEGIN NEW CERTIFICATE REQUEST----- and -----END NEW CERTIFICATE REQUEST----- tags, and paste it in to the DigiCert order form.
Make sure that when you Select Server Software, you select Tomcat.
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After you’ve received your SSL/TLS certificate from DigiCert, you can install it on your Tomcat server.