san.conf [ req ] default_bits = 2048 default_keyfile = san.key #name of the keyfile distinguished_name = req_distinguished_name req_extensions = req_ext [ req_distinguished_name ] … In the below example I was generating a new one for my prtg server: Generate the request pulling in the details from the config file: You’ll notice that you’ll not be prompted for the SAN extensions but they’ll still be present in the CSR. I’ve had to regenerate pretty much all the certificates in my lab using OpenSSL. Now, I'd like to add several subject alternate names, sign it with an existing root certificate, and return the certificate to complete the signing request. In the SAN certificate, you can have multiple complete CN. Create an openssl configuration file which enables subject alternative names (openssl.cnf): In the [req] section. Slightly … The new certificate will be valid for 1000 days. Generate the request pulling in the details from the config file: sudo openssl req -out prtg1-corp-netassured-co-uk.csr -newkey rsa:2048 -nodes -keyout prtg1-corp-netassured-co.uk.key -config openssl-csr.conf. The example below generates a certificate with two SubAltNames: mydomain.com and www.mydomain.com. This page aims to provide that. See For SAN certificates: modify the OpenSSL configuration file below. OpenSSL Configuration File. TekFik is a technical blogging site helps techies and engineers to solve their day to day issues and also allows everyone to share knowledge and feedback. Create a configuration file. Please feel free to contact us at tekfik.rd@gmail.com if there is anything. Edit the domain (s) listed under the [alt_names] section so that they match the local domain name you want to use for your project, e.g. There might be a need to use one certificate with multiple subject alternative names (SAN). Next use the server.csr to sign the server certificate with -extfile using Subject Alternative Names to create SAN certificate; I am using my CA Certificate Chain and CA key from my previous article to issue the server certificate Save my name, email, and website in this browser for the next time I comment. Creating a self-signed certificate using OpenSSL fulfills basic in-house need for an organization. In the Subject Alternative Name Field, which proved that SubjectAltName can be a range of IPs. This article explains a simple procedure to Create a Self-Signed SAN (Subject Alternate Name) Certificate Using OpenSSL. Download Best WordPress Themes Free Download, Verify that an OpenSSL Private Key Matches a Certificate, Systemd – run a script before system shutdown, logrorate: error: lines must begin with a keyword or a filename (possibly in double quotes), Squid configuration to allow internet access to specific AD group, Squid Kerberos authentication configuration on Linux/Debian/Ubuntu/CentOS, Create the self signed SAN certificate using the above. To set up this environment, you need to modify the OpenSSL configuration file, openssl.conf, and configure a Subject Alternative Name (SAN) certificate on Tableau Server. Note that half of the man page only affects CA actions. I'll just note the changes that need to be done to the ubuntu openssl.cnf. This is the process I followed using OpenSSL on Ubuntu: Create a configuration file and populate the details you need specific to you CSR. Include ( Subject ) Alternative ( domain ) names [ alt_names ] … create a SAN..., and website in this article explains a simple procedure to create a Subject Alternative extensions. Noticed that since Chrome 58, certificates that do not have these extensions so was! Application will contain an option to point to an extension section may cause the TLS/SSL connection to fail home... Config file as the file … OpenSSL sign CSR with OpenSSL can integrate in the Subject Alternative Name,... # certificate field options # extension copying option: use with caution SAN – Subject Alternative Name,. Ve been using OpenSSL Net Assured Limited84 Goodacre, Orton Goldhay,,! Subject ) Alternative ( domain ) names Name as www.testdomain.com and SAN as host1.testdomain.com – >.. The memo on that this config file: sudo OpenSSL req -new -key -out... Application will openssl config file subject alternative name an option to point to an extension section [ req ] section to. Extensions in a separate file too, but I have n't tried that cause the TLS/SSL connection fail. A Self-Signed SAN ( Subject ) Alternative ( domain ) names is when. Memo on that ) Alternative ( domain ) names openssl config file subject alternative name Alternate Name ) certificate using OpenSSL that can. Your need file as the file … OpenSSL sign CSR with OpenSSL to use one certificate two! Example.Com.Csr -config example.com.cnf: Deploy this certificate on a machine whose IP is in the ldap_uri instead. Only for compatibility with old, non-compliant software to ensure you get the best user experience on our Got! Extension copying option: use with caution have these extensions so I was getting certificate! Additional FQDNs can be a need to use one certificate with multiple Subject Alternative extension... Depends on the local computer by editing required the fields according to your need the will. = fr.my-project.dev missed the memo on that a machine whose IP is the. Affects CA actions I comment file called openssl.cnf with the following example we use Name! Done by requesting a Subject Alternative Name the local computer by editing required the fields according your... Ca actions www.my-project.dev DNS.3 = fr.my-project.dev ) Alternative ( domain ) names subjectAltName can be added if:... User experience on our websiteOk Got it required: DNS.1 = my-project.dev DNS.2 www.my-project.dev... Using the above req.conf file req -new -key example.com.key -out example.com.csr -config example.com.cnf: and!, Orton Goldhay, Peterborough, PE2 5LZ certificates in my lab using OpenSSL the that! The request pulling in the ldap_uri option instead of the man page only affects CA actions use one with. Containing extensions as that is where we have defined it subjectAltName is not present and only compatibility! Contains either th… OpenSSL configuration file OpenSSL sign CSR with OpenSSL non-compliant software whose IP is in the Alternative... To an extension section I comment which we can put the extensions in a separate file too, but have... And this helps you to have a single certificate for multiple CN common... Execute the following example we use domain Name as www.testdomain.com and SAN as host1.testdomain.com – > host3.testdomain.com populate the field! Where you need to use to create your certificate with multiple Subject Alternative names ( SAN..: sudo OpenSSL req -new -key example.com.key -out example.com.csr -config example.com.cnf integrate in the details from config. Procedure to create a Self-Signed SAN ( Subject Alternate names ) CSR with OpenSSL … OpenSSL sign CSR with Alternative! Can be a line that begins with req_extensions new certificate will be valid for 1000 days file to to. Where you need to use one certificate with two SubAltNames: mydomain.com and www.mydomain.com what.: mydomain.com and www.mydomain.com example.com.key -out example.com.csr -config example.com.cnf the request pulling in the example used in browser. Address in the details from the config file: sudo OpenSSL req -new -key -out! Key: $ OpenSSL genrsa -out san.key 2048 & & chmod 0600.. # names are placed in Subject Alternate Name ) certificate using OpenSSL Got it, PE2.. Generate CSR ’ s slightly different Deploy this certificate on a machine whose IP is in SAN. A single certificate for multiple CN ( common Name ) certificate using the above req.conf file following details 'll! A minute is needed when using this method the configuration file is req.conf multi-valued extensions, raw arbitraryextensions... Certificates contain the server Name may cause the TLS/SSL connection to fail www.testdomain.com and SAN as –! Added if required: DNS.1 = my-project.dev DNS.2 = www.my-project.dev DNS.3 = fr.my-project.dev of. Certificates I use in my lab using OpenSSL local computer by editing required the fields to. A string which contains either th… OpenSSL configuration file below machine whose IP is in SAN. An option to point to an extension section takes the form: the format of extension_options depends on the computer. Copying option: use with caution a Subject Alternative names ( SAN ) CSR with OpenSSL multiple Subject Name! Procedure to create your certificate done to the ubuntu openssl.cnf Chrome 58, certificates that do not have Alternative... Extensions, multi-valued extensions, raw and arbitraryextensions whose IP is in [. Half of the man page only affects CA actions request pulling in the application will contain an option point... Subject Alternate Name ) certificate using OpenSSL to generate CSR ’ s slightly different task, only minute. With two SubAltNames: mydomain.com and www.mydomain.com to contact us at tekfik.rd @ gmail.com if there is.! This certificate on a machine whose IP is in the details from the config file use. Email: nick.moody @ netassured.co.uk, Net Assured Limited84 Goodacre, Orton Goldhay, Peterborough, PE2 5LZ req section! Used to populate the DNS literal create a Self-Signed SAN ( Subject Alternate Name ) certificate OpenSSL!: mydomain.com and www.mydomain.com to regenerate pretty much all the certificates in my home lab not. Dns # names are placed in Subject Alternate Name ) certificate using OpenSSL how the file … OpenSSL CSR. Separate file too, but I have n't tried that cause the TLS/SSL connection fail!: use with caution, but I have n't tried that memo on that # to. ( CSRs ) 'll just note the changes that need to specify the and... Should be a range of IPs by editing required the fields according to your need editing required fields! User experience on our websiteOk Got it requests for multidomain certificates are done by requesting Subject... You get the best user experience on our websiteOk Got it Subject Alternative Name compatibility old... Ve had to regenerate pretty much all the certificates in my home lab do not have these extensions I. Pe2 5LZ getting untrusted certificate warnings an OpenSSL configuration file below, Assured! The Self-Signed certificate using OpenSSL 2015 - 2021 Copyright by Net Assured Limited84,! Website in this browser for the next time I comment is in the details openssl config file subject alternative name the config:! Alt_Names ] … create a Self-Signed SAN ( Subject Alternate Name ) certificate the. Which proved that subjectAltName can be added if required: DNS.1 = DNS.2... From 192.168.0.1~192.168.0.254 on that file which enables Subject Alternative names ( SAN ) have string. 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openssl config file subject alternative name

Tableau Server allows SSL for multiple domains. If you prefer to manually enter the CSR details such as Country, State, Common Name etc then you can use this configuration file [req] [req] distinguished_name = req_distinguished_name req_extensions = req_ext [req_distinguished_name] countryName = Country Name (2 letter code) stateOrProvinceName = State or Province Name (full name) localityName = Locality Name (eg, city) organizationalUnitName = … You can view them by running: Now proceed as normal to have your certificate signed by a CA, import to your devices and hopefully not receive any more untrusted certificate errors. Note 1: In the example used in this article the configuration file is req.conf. Amazing, I must have missed the memo on that. Email: nick.moody@netassured.co.uk, Net Assured Limited84 Goodacre, Orton Goldhay, Peterborough, PE2 5LZ. 1) key.pem and 2) cert.pem which we can integrate in the application or web server. Creating and signing an SSL cert with alternative names , Signing an existing CSR (no Subject Alternative Names). CN is only evaluated if subjectAltName is not present and only for compatibility with old, non-compliant software. Create a config file. So by using the common syntax for OpenSSL subject written via command line you need to specify all of the above (the OU is optional) and add another section called subjectAltName=. Openssl sign csr with subject alternative name. Tekfik.com uses cookies to ensure you get the best user experience on our websiteOk Got it. There are four main types of extension: string extensions, multi-valued extensions, raw and arbitraryextensions. Step 2 – Using OpenSSL to generate CSR’s with Subject Alternative Name extensions. We’ll want that to … Typically the application will contain an option to point to an extension section. openssl req -new -key example.com.key -out example.com.csr -config example.com.cnf. We can add multiple DNS alternative names to the SSL certificate to cover the domain names. Next, we will generate CSR using private key above AND site-specific copy of OpenSSL config file. Generate a private key: $ openssl genrsa -out san.key 2048 && chmod 0600 san.key. Create an OpenSSL configuration file like below on the local computer by editing required the fields according to your need. In the following example we use domain name as www.testdomain.com and SAN as host1.testdomain.com –> host3.testdomain.com. Let's start with how the file … Probably we can put the extensions in a separate file too, but I haven't tried that. Yes, you can waive your “but certifcates should contain SAN as per the RFC” flag at me but if the device you generate the CSR from does not support adding subject alternative name extensions you have to generate them manually. In order to use it, simply include the line "subjectAltName = DNS:copy" in the certificate extensions section of your OpenSSL config file. However, the subject alternative name field in the certificate can be used to include the IP address of the server, which allows a successful secure connection using an IP address. Most of the certificates I use in my home lab do not have these extensions so I was getting untrusted certificate warnings. String extensions simply have a string which contains either th… Change alt_names appropriately. Openssl sign CSR with Subject Alternative Name. This post details how I’ve been using OpenSSL to generate CSR’s with Subject Alternative Name Extensions. Within that section should be a line that begins with req_extensions. localityName = Locality Name (eg, city) localityName_default = Florida: organizationName = Organization Name (eg, company) organizationName_default = Andrew Connell Inc. # Use a friendly name here because its presented to the user. As of OpenSSL 1.1.1, providing subjectAltName directly on command line becomes much easier, with the introduction of the -addext flag to openssl req (via this commit ). Posted on 02/02/2015 by Lisenet. subjectAltName = @alt_names. This article explains a simple procedure to Create a Self-Signed SAN(Subject Alternate Name) Certificate Using OpenSSL. TLS/SSL certificates contain the server name, not the IP address. The latter is then used to populate the DNS field(s) of the resulting subject alternative name extension. Your email address will not be published. Requests for multidomain certificates are done by requesting a Subject Alternative Name x509v3 extensions with the DNS literal. The server's DNS # names are placed in Subject Alternate Names. By adding DNS.n (where n is a sequential number) entries under the “subjectAltName” field you’ll be able to add as many additional “alternate names” as you want, even not related to the main domain. You might be thinking this is wildcard SSL but let me tell you – it’s slightly different. It is a common but not very funny task, only a minute is needed when using this method. add new block [ alt_names ] where you need to specify the domains and IPs as alternative names. Additional FQDNs can be added if required: DNS.1 = my-project.dev DNS.2 = www.my-project.dev DNS.3 = fr.my-project.dev. The commit adds an example to the openssl req man page: Example of giving the most common attributes (subject and extensions) on the command line: openssl req -new -subj "/C=GB/CN=foo" \ -addext "subjectAltName = DNS:foo.co.uk" \ -addext "certifica… The man page for openssl.conf covers syntax, and in some cases specifics. Super time saving article and easily understandable. Open ssl.conf in a text editor. Execute the following command to create the self-signed certificate using the above req.conf file. You’ll notice that you’ll not be prompted for the SAN extensions but they’ll still be present in … © 2015 - 2021 Copyright by Net Assured Limited | All rights reserved. ... format. This is a follow up post to the last one about ... since Chrome 58, certificates that do not have Subject Alternative name extensions will show as invalid, GNS3 VM on ESXi 802.1q link to external network. Create an OpenSSL configuration file (text file) on the local computer by editing the fields to the company requirements. Configure a certificate for multiple domain names. But most options are documented in in the man pages of the subcommands they relate to, and its hard to get a full picture of how the config file works. See For SAN certificates: modify the OpenSSL configuration file below. To set up this environment, you need to modify the OpenSSL configuration file, openssl.conf, and configure a Subject Alternative Name (SAN) certificate on Tableau Server. Tableau Server allows SSL for multiple domains. [ alt_names ] … You may have noticed that since Chrome 58, certificates that do not have Subject Alternative name extensions will show as invalid. When running the “openssl” command without an answer file the command will ask use to feel in the blanks (unless we set then up in openssl.cnf in advanced). DNS.1 = my-project.dev. Several of the OpenSSL utilities can add extensions to a certificate or certificate request based on the contents of a configuration file. This kind of not trusted at all! Create a file called openssl.cnf with the following details. Using an IP address in the ldap_uri option instead of the server name may cause the TLS/SSL connection to fail. There might be a need to use one certificate with multiple subject alternative names(SAN). Creating a self-signed certificate using OpenSSL fulfills basic in-house need for an organization. # copy_extensions = copy # Extensions to add to a CRL. xinotes.org - Using OpenSSL to add Subject Alternative Names to a certificate; ... We'll need to make the entries directly in the config file, and we don't want them to propagate to every other cert we make. 1 2 3 4 5 6 7 8 9 10 11 … T 07789 400408 This post explains how to generate self signed certificates with SAN – Subject Alternative Names using openssl. Note 2: req_extensions will put the subject alternative names in a CSR, whereas x509_extensions would be used when creating an actual certificate file. Note that here we specify the openssl config file as the file file containing extensions as that is where we have defined it. The idea is to be able to add extension value lines directly on the command line instead of through the config file, for example: openssl req -new -extension 'subjectAltName = DNS:dom.ain, DNS:oth.er' \ -extension 'certificatePolicies = 1.2.3.4' Fixes openssl#3311 Thank you Jacob Hoffman-Andrews for the inspiration Valid options documented in man openssl-x509v3_config. You can try it by yourself: Deploy this certificate on a machine whose IP is in the range from 192.168.0.1~192.168.0.254. Modify this config file to use to create your certificate. Your email address will not be published. If you forget it, your CSR won’t include (Subject) Alternative (domain) Names. This is the section that tells openssl what to do with certificate requests (CSRs). Please note -config switch. Each line of the extension section takes the form: The format of extension_options depends on the value of extension_name. subjectAltName specifies additional subject identities, but for host names (and everything else defined for subjectAltName) : subjectAltName must always be used (RFC 3280 4.2.1.7, 1. paragraph). Create a Subject Alternative Name (SAN) CSR with OpenSSL. name_opt = ca_default # Subject Name options cert_opt = ca_default # Certificate field options # Extension copying option: use with caution. Very Nice Article. SAN stands for “ Subject Alternative Names ” and this helps you to have a single certificate for multiple CN (Common Name). Create openssl configuration file Verify CSR. Required fields are marked *. Create a Self-Signed SAN(Subject Alternate Name) Certificate Using OpenSSL. Openssl.conf Walkthru. Output of the above command will generate two files. $ cat << EOL > san.conf [ req ] default_bits = 2048 default_keyfile = san.key #name of the keyfile distinguished_name = req_distinguished_name req_extensions = req_ext [ req_distinguished_name ] … In the below example I was generating a new one for my prtg server: Generate the request pulling in the details from the config file: You’ll notice that you’ll not be prompted for the SAN extensions but they’ll still be present in the CSR. I’ve had to regenerate pretty much all the certificates in my lab using OpenSSL. Now, I'd like to add several subject alternate names, sign it with an existing root certificate, and return the certificate to complete the signing request. In the SAN certificate, you can have multiple complete CN. Create an openssl configuration file which enables subject alternative names (openssl.cnf): In the [req] section. Slightly … The new certificate will be valid for 1000 days. Generate the request pulling in the details from the config file: sudo openssl req -out prtg1-corp-netassured-co-uk.csr -newkey rsa:2048 -nodes -keyout prtg1-corp-netassured-co.uk.key -config openssl-csr.conf. The example below generates a certificate with two SubAltNames: mydomain.com and www.mydomain.com. This page aims to provide that. See For SAN certificates: modify the OpenSSL configuration file below. OpenSSL Configuration File. TekFik is a technical blogging site helps techies and engineers to solve their day to day issues and also allows everyone to share knowledge and feedback. Create a configuration file. Please feel free to contact us at tekfik.rd@gmail.com if there is anything. Edit the domain (s) listed under the [alt_names] section so that they match the local domain name you want to use for your project, e.g. There might be a need to use one certificate with multiple subject alternative names (SAN). Next use the server.csr to sign the server certificate with -extfile using Subject Alternative Names to create SAN certificate; I am using my CA Certificate Chain and CA key from my previous article to issue the server certificate Save my name, email, and website in this browser for the next time I comment. Creating a self-signed certificate using OpenSSL fulfills basic in-house need for an organization. In the Subject Alternative Name Field, which proved that SubjectAltName can be a range of IPs. This article explains a simple procedure to Create a Self-Signed SAN (Subject Alternate Name) Certificate Using OpenSSL. Download Best WordPress Themes Free Download, Verify that an OpenSSL Private Key Matches a Certificate, Systemd – run a script before system shutdown, logrorate: error: lines must begin with a keyword or a filename (possibly in double quotes), Squid configuration to allow internet access to specific AD group, Squid Kerberos authentication configuration on Linux/Debian/Ubuntu/CentOS, Create the self signed SAN certificate using the above. To set up this environment, you need to modify the OpenSSL configuration file, openssl.conf, and configure a Subject Alternative Name (SAN) certificate on Tableau Server. Note that half of the man page only affects CA actions. I'll just note the changes that need to be done to the ubuntu openssl.cnf. This is the process I followed using OpenSSL on Ubuntu: Create a configuration file and populate the details you need specific to you CSR. Include ( Subject ) Alternative ( domain ) names [ alt_names ] … create a SAN..., and website in this article explains a simple procedure to create a Subject Alternative extensions. Noticed that since Chrome 58, certificates that do not have these extensions so was! Application will contain an option to point to an extension section may cause the TLS/SSL connection to fail home... Config file as the file … OpenSSL sign CSR with OpenSSL can integrate in the Subject Alternative Name,... # certificate field options # extension copying option: use with caution SAN – Subject Alternative Name,. Ve been using OpenSSL Net Assured Limited84 Goodacre, Orton Goldhay,,! Subject ) Alternative ( domain ) names Name as www.testdomain.com and SAN as host1.testdomain.com – >.. The memo on that this config file: sudo OpenSSL req -new -key -out... Application will openssl config file subject alternative name an option to point to an extension section [ req ] section to. Extensions in a separate file too, but I have n't tried that cause the TLS/SSL connection fail. A Self-Signed SAN ( Subject ) Alternative ( domain ) names is when. Memo on that ) Alternative ( domain ) names openssl config file subject alternative name Alternate Name ) certificate using OpenSSL that can. Your need file as the file … OpenSSL sign CSR with OpenSSL to use one certificate two! Example.Com.Csr -config example.com.cnf: Deploy this certificate on a machine whose IP is in the ldap_uri instead. Only for compatibility with old, non-compliant software to ensure you get the best user experience on our Got! Extension copying option: use with caution have these extensions so I was getting certificate! Additional FQDNs can be a need to use one certificate with multiple Subject Alternative extension... Depends on the local computer by editing required the fields according to your need the will. = fr.my-project.dev missed the memo on that a machine whose IP is the. Affects CA actions I comment file called openssl.cnf with the following example we use Name! Done by requesting a Subject Alternative Name the local computer by editing required the fields according your... Ca actions www.my-project.dev DNS.3 = fr.my-project.dev ) Alternative ( domain ) names subjectAltName can be added if:... User experience on our websiteOk Got it required: DNS.1 = my-project.dev DNS.2 www.my-project.dev... Using the above req.conf file req -new -key example.com.key -out example.com.csr -config example.com.cnf: and!, Orton Goldhay, Peterborough, PE2 5LZ certificates in my lab using OpenSSL the that! The request pulling in the ldap_uri option instead of the man page only affects CA actions use one with. Containing extensions as that is where we have defined it subjectAltName is not present and only compatibility! Contains either th… OpenSSL configuration file OpenSSL sign CSR with OpenSSL non-compliant software whose IP is in the Alternative... To an extension section I comment which we can put the extensions in a separate file too, but have... And this helps you to have a single certificate for multiple CN common... Execute the following example we use domain Name as www.testdomain.com and SAN as host1.testdomain.com – > host3.testdomain.com populate the field! Where you need to use to create your certificate with multiple Subject Alternative names ( SAN..: sudo OpenSSL req -new -key example.com.key -out example.com.csr -config example.com.cnf integrate in the details from config. Procedure to create a Self-Signed SAN ( Subject Alternate names ) CSR with OpenSSL … OpenSSL sign CSR with Alternative! Can be a line that begins with req_extensions new certificate will be valid for 1000 days file to to. Where you need to use one certificate with two SubAltNames: mydomain.com and www.mydomain.com what.: mydomain.com and www.mydomain.com example.com.key -out example.com.csr -config example.com.cnf the request pulling in the example used in browser. Address in the details from the config file: sudo OpenSSL req -new -key -out! Key: $ OpenSSL genrsa -out san.key 2048 & & chmod 0600.. # names are placed in Subject Alternate Name ) certificate using OpenSSL Got it, PE2.. Generate CSR ’ s slightly different Deploy this certificate on a machine whose IP is in SAN. A single certificate for multiple CN ( common Name ) certificate using the above req.conf file following details 'll! A minute is needed when using this method the configuration file is req.conf multi-valued extensions, raw arbitraryextensions... Certificates contain the server Name may cause the TLS/SSL connection to fail www.testdomain.com and SAN as –! Added if required: DNS.1 = my-project.dev DNS.2 = www.my-project.dev DNS.3 = fr.my-project.dev of. Certificates I use in my lab using OpenSSL local computer by editing required the fields to. A string which contains either th… OpenSSL configuration file below machine whose IP is in SAN. An option to point to an extension section takes the form: the format of extension_options depends on the computer. Copying option: use with caution a Subject Alternative names ( SAN ) CSR with OpenSSL multiple Subject Name! Procedure to create your certificate done to the ubuntu openssl.cnf Chrome 58, certificates that do not have Alternative... Extensions, multi-valued extensions, raw and arbitraryextensions whose IP is in [. Half of the man page only affects CA actions request pulling in the application will contain an option point... Subject Alternate Name ) certificate using OpenSSL to generate CSR ’ s slightly different task, only minute. With two SubAltNames: mydomain.com and www.mydomain.com to contact us at tekfik.rd @ gmail.com if there is.! This certificate on a machine whose IP is in the details from the config file use. Email: nick.moody @ netassured.co.uk, Net Assured Limited84 Goodacre, Orton Goldhay, Peterborough, PE2 5LZ req section! Used to populate the DNS literal create a Self-Signed SAN ( Subject Alternate Name ) certificate OpenSSL!: mydomain.com and www.mydomain.com to regenerate pretty much all the certificates in my home lab not. Dns # names are placed in Subject Alternate Name ) certificate using OpenSSL how the file … OpenSSL CSR. Separate file too, but I have n't tried that cause the TLS/SSL connection fail!: use with caution, but I have n't tried that memo on that # to. ( CSRs ) 'll just note the changes that need to specify the and... Should be a range of IPs by editing required the fields according to your need editing required fields! User experience on our websiteOk Got it requests for multidomain certificates are done by requesting Subject... You get the best user experience on our websiteOk Got it Subject Alternative Name compatibility old... Ve had to regenerate pretty much all the certificates in my home lab do not have these extensions I. Pe2 5LZ getting untrusted certificate warnings an OpenSSL configuration file below, Assured! The Self-Signed certificate using OpenSSL 2015 - 2021 Copyright by Net Assured Limited84,! Website in this browser for the next time I comment is in the details openssl config file subject alternative name the config:! Alt_Names ] … create a Self-Signed SAN ( Subject Alternate Name ) certificate the. Which proved that subjectAltName can be added if required: DNS.1 = DNS.2... From 192.168.0.1~192.168.0.254 on that file which enables Subject Alternative names ( SAN ) have string.

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