The Web Management console for my 3CX Voip Server show SSL error because the certificate has expired. Like I would normally do, I ran the command to renew the cert. through Letsencrypt using windows ACME Client, but the Cert. generation process fails with the "Error UriFormatException { ... "Nothing has changed on the server since my last renewal and countless other times.I appreciate your assistance.
It produced this output:Let's Encrypt (Simple Windows ACME Client)Renewal Period: 60Certificate Store: WebHostingACME Server: -v01.api.letsencrypt.org/Config Folder: C:\Users\mwebb\AppData\Roaming\letsencrypt-win-simple\httpsacme-v01.api.letsencrypt.orgCertificate Folder: C:\Users\mwebb\AppData\Roaming\letsencrypt-win-simple\httpsacme-v01.api.letsencrypt.orgLoading Signer from C:\Users\mwebb\AppData\Roaming\letsencrypt-win-simple\httpsacme-v01.api.letsencrypt.org\SignerGetting AcmeServerDirectoryError UriFormatException Message="Invalid URI: The URI scheme is not valid.", Data=, InnerException=null, TargetSite=Void CreateThis(System.String, Boolean, System.UriKind), StackTrace=" at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)at System.Uri..ctor(String uriString)at ACMESharp.AcmeClient.GetDirectory(Boolean saveRelative)at LetsEncrypt.ACME.Simple.Program.Main(String args)", HelpLink=null, Source="System", HResult=-2146233033Press enter to continue.
Let’s Encrypt on Windows with ACMESharp and letsencrypt-win-simple
I don't know in what version letsencrypt-win-simple added ACMEv2 support, but, @mda.ssl, you might need to switch to a newer version of your client software (now renamed from "letsencrypt-win-simple" to "win-acme").
The utility also creates a scheduled task that runs this command once a day and fires update requests. Note you might have to tweak the task User Identity settings as described here to ensure that the user is logged on properly when running the scheduled task. Note that the user is the logged on user because this tool creates the Let's Encrypt vault in a %appdata%\letsencrypt-win-simple which is a user specific profile. It'd be much better if the vault was in a global location like \ProgramData so it can run under any account including system accounts. But that's a minor issue.
After you create a LE account (that's the first thing the client does) and a private/public key pair which is used for encrypting the communication with LE servers, the registration of the domain names that you need to have included in the certificates is performed, and a successful domain name registration (http-01 validation) with LE is valid for slightly longer than 11 months.
I don't find the switch for "including the www." to the certificate.So do I have to install 2 certs for www. and without www. in windows (?) because Plesk on Linux offers the option to do that by cheching a box.Is that a limitation doing that under windows?
Hi Rick great article! HUGE fan of lets encrypt it is like something i never knew existed but desperately need!I am using asp.net core with a reverse proxy (not the aspcore IIS module) - this doesnt play nicely with the auto-renew as you need to disable the reverse proxy (unless your proxied app runs in the same folder as your IIS web application)
ISTR the Windows scheduled renewal task runs every 24hrs but only actually renews the cert when it needs to. It's a hidden task and runs let'sencrypt with these flags.. --renew --baseuri " -v01.api.letsencrypt.org/"
I run letsencrypt on one of my production servers. I then export the certificates to my stage server. On the stage server I bind the certificate to the site. I then push everything back to the 2 productions servers. The only way I can think of making this easier is to run letsencrypt on both production servers and let the scheduled task renew certificates on both servers. In this case my production servers would have certificates with different keys.
Hello, I'm working with your script for over one year. It is working well!There is one thing I would like to know: I have some sites which are secured with comodo certificates. Today a customer called me that the SSL binding was down. The script had renewed a LetsEncrypt certificate instead of the customers comodo cert but did not bind it to the domain on port 443.So what I would like to know: How can I exept a domain from renewing the certificates with LetsEncrypt certificates? I already tried to delete it in the certificate console and all files with domain*.* below C:\Users\Administrator\AppData\Roaming\letsencrypt-win-simple\httpsacme-v01.api.letsencrypt.orgBut after 3 months all is back again an my customers cert is unbind. I don't know if it matters to delete and recreate the site in IIS - I did not already tried.Would be great to get a workaround from you!Best regards
#1 In the registry,HKEY_CURRENT_USER\Software\letsencrypt-win-simple\ -v01.api.letsencrypt.org/,edit the key "Renewals" and delete the line(s) corresponding to the certificate(s) you don't want to renew.#2 In the C:\Users\USER\AppData\Roaming\letsencrypt-win-simple\httpsacme-v01.api.letsencrypt.org directory,delete all files associated with this certificate(s).#3 In MMC.exe, plugin "Certificates" (Computer), "webhosting" node : delete the certificate(s)
Hello Rick, great work on Let's encrypt ... I use it on my 4 domains with auto-update and it work really well . I think for non-commercial , startup and even for small businesses this is the way to go ... sometime small business owner who want a site dont understand very well that a domain name is not all what is needed, but on top developping the site come hosting fee , now SSL if you want any chances to be showing in a Search Engine .. so to be able to get a low cost/free certificate is obviously welcome ... cheer.
The encrypted channel is created using the Transport Layer Security (TLS) protocol, previously called Secure Socket Layer (SSL). The terms SSL and TLS are often used interchangeably, with SSL 3.0 being replaced by TLS 1.0. SSL was a Netscape-developed protocol, while TLS is an IETF standard. At the time of writing, all versions of SSL (1.0, 2.0, 3.0) are deprecated due to various security problems and will produce warnings in current browsers, and the TLS versions (1.0, 1.1, 1.2) are in use, with 1.3 currently a draft.
For example, the setting ECDHE-RSA-AES256-GCM-SHA384 means that the key will be exchanged using the Elliptic Curve Diffie-Hellman Ephemeral (ECDHE) key exchange algorithm; the CA signed the certificate using the Rivest-Shamir-Adleman (RSA) algorithm; the symmetric message encryption will use the Advanced Encryption Standard (AES) cipher, with a 256-bit key and GCM mode of operation; and message integrity will be verified using the SHA secure hashing algorithm, using 384-bit digests. (A comprehensive list of algorithm combinations is available.)
-Coder/letsencrypt-win-simple is a .net client built around ACMESharp, which is a library that implements the ACME (Automated Certificate Management Environment) protocol, which is what makes all of this so easy to use. We really are standing on the shoulders of giants, and I thank all of the people that have built up this fantastic stack.
Si noti che verrà richiesto un certificato con periodo di rinnovo di 60 giorni e che per default il path in cui verranno memorizzati i file di configurazione e il certificato sarà %AppData%\letsencrypt-win-simple\httpsacme-v01.api.letsencrypt.org.
1. There is a related pair of non-interchangeable control sequences of almost random characters called keys: public or public and private, also referred to as private.2. Any dataset can be encrypted with a public key. Because of this, the public key can be freely transmitted over the network, and an attacker will not be able to use it to harm users.3. The private key is known only to its owner and can decrypt the received data stream into structured information that has been encrypted with a public key paired with it. The private key should be stored on the service and used only for local decryption of messages that have been received. If an attacker is able to gain access to a private key, then procedures for revoking and reissuing the certificate must be initiated to make the previous certificate useless. A leak of a private key is called a compromise.
8. Verifying the public key assignmentThe browser checks the purpose of the public key contained in the certificate encryption, signatures, certificate signature and so on. Browsers reject certificates, for example, if a server certificate is found with a key intended only for CRL signing.
2. SGC certificates. These support customers with increasing the level of encryption. Server Gated Cryptography technology allows you to forcibly increase the encryption level to 128 bits in older browsers that supported only 40 or 56 bit encryption. Cryptography is used to solve this problem, but it cannot cope with the other vulnerabilities present in unsecure browsers, so there are a number of root Certification centers that do not support this technology. Cost: from $300 per year.
3. PKCS#12/PFX formatPKCS#12 or PFX format is a binary format for saving a certificate, any intermediate certificates, and a private key in one encrypted file. PFX files are usually saved with the extension *.pfx or *.p12. As a rule, this format is used on Windows certificates to export/import the certificate and private key 2.
The WACS utility saves the certificate's private key (*.pem), the certificate itself, and a number of other files to the directory C:\Users\%username%\AppData\Roaming\letsencrypt-win-simple . It will then install the generated Let's Encrypt SSL certificate in the background and bind it to your IIS site. 2ff7e9595c
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