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Copy file name to clipboardExpand all lines: faq/change-dynamsoft-service-certificate.md
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@@ -22,4 +22,4 @@ To replace the default certificate, the steps are:
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- Replace the old keys in `C:\Windows\SysWOW64\Dynamsoft\DynamsoftServicex64_17\cert`
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- Restart the service
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NOTE: For v17.2 or higher versions, you can use the new API <ahref="{{site.info}}api/Dynamsoft_WebTwainEnv.html#updatecert"target="_blank">UpdateCert</a> to automatically update the client side certificate.
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<!--NOTE: For v17.2 or higher versions, you can use the new API <a href="{{site.info}}api/Dynamsoft_WebTwainEnv.html#updatecert" target="_blank">UpdateCert</a> to automatically update the client side certificate.-->
Copy file name to clipboardExpand all lines: faq/failed-to-load-resource.md
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### Cause
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By default, we use "127.0.0.1" for service connection. However, you may use our "local.dynamsoft.com" certificate by setting **Dynamsoft.WebTwainEnv.Host = "local.dynamsoft.com"** or **Dynamsoft.DWT.Host="local.dynamsoft.com"**.
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Ref: <ahref="{{site.faq}}how-come-would-you-need-local.dynamsoft.com.html"target="_blank">In which cases would I use local.dynamsoft.com instead of 127.0.0.1?</a>
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In this case, if you are trying to access an application that integrates a version of Dynamic Web TWAIN V15.3 ~ V17.2.5, you will get the error. Because the old "local.dynamsoft.com" certificate expired on <fontcolor=red>January 9th, 2023</font>.
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### Resolution
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- For v17.1.1 or older versions, choose one of the following approaches:
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- Method 1. Upgrade to V18.0+ which comes with a valid certificate
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- Method 2. If you must fix the issue on a few client machines immediately, manually update the following cert files on the client-side machine. Click <ahref="https://tst.dynamsoft.com/public/download/dwt/newcert/local.dynamsoft.com/newcert.zip"target="_blank">here</a> to download the new certificate and use the new server.pem.ldsc & server_key.pem.ldsc to replace the old one under **`C:\Windows\SysWOW64\Dynamsoft\DynamsoftService(DynamsoftServicex64)\cert`**.
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Note: the new certificate from Dynamsoft will expire on December 8th, 2023. This means you will need to update the certificate again after this certificate expires.
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- Method 3. <ahref="{{site.about}}getsupport.html"target="_blank">Contact Dynamsoft</a> for a new MSI for client-side.
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- For v17.2 or higher versions, use the new API <ahref="{{site.info}}api/Dynamsoft_WebTwainEnv.html#updatecert"target="_blank">UpdateCert</a> to automatically update the client side certificate before it expires. **Please go to dynamsoft.webtwain.install.js file in the Resource Folder and search the keyword "OnSSLCertInfo"**, add the following lines of code:
By default, “127.0.0.1” is used for service connection. "127.0.0.1" uses a self-signed certificate because it is an internal IP address, if your environment requires high level security, self-signed certificates may not be accepted. Moreover, Android OS or Chrome OS does not accept connection between browsers and Dynamsoft Service via "127.0.0.1".
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In the case that you have used our expired certificate - local.dynamsoft.com, you will need to update to the latest VeriSign’ed certificate. The most recent expired "local.dynamsoft.com" certificate expired on <fontcolor=red>January 9th, 2023</font> and the latest certificate will expire on <fontcolor=red>December 8th, 2023</font>
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> ___Please note:____all official certificates issued by 3rd party come with an expiry date - generally one year. This means that each year the certificate will need to be updated if local.dynamsoft.com is used._
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<!-- 2. Your own domain certificate expired. -->
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<!-- In this case, if you are trying to access an application that integrates a version of Dynamic Web TWAIN V15.3 ~ V17.2.5, you will get the error. Because the old "local.dynamsoft.com" certificate expired on <font color=red>January 9th, 2023</font>. -->
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### Resolution
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-**No High Level Security Requirement**:
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Set back to self-signed certificate "127.0.0.1" by comment the line `Dynamsoft.WebTwainEnv.Host = "local.dynamsoft.com"` or `Dynamsoft.DWT.Host="local.dynamsoft.com"` out. No need to worry about the expiry date of the certificate anymore.
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-**High Level Security Requirement (<fontcolor=red>Please note: you need to replace the certificate annually due to expiration</font>)**
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1. (**<u>Recommended</u>**) Revert back to the self-signed certificate for "127.0.0.1". Dynamsoft understands the importance of information security and are committed to remaining one of the most security-compliant companies in the industry. Starting from April 9,2021, Dynamsoft becomes ISO 27001 certified. Although a self-sign certificate is being used all connections are limited to the device itself (127.0.0.1) which ensures security in most cases.
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2. If you have to use "local.dynamsoft.com", the following methods can be taken:
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- Method 1 (**<u>Recommended</u>**). Take advantage of the new feature -- **Remote Scan** which released in v18.0. With Remote Scan, you can limit the number of Dynamsoft Service Installations to a minimum. For more details, please refer to [What is Remote Scan](https://www.dynamsoft.com/remote-scan/docs/introduction/).
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- Method 2. If you must fix the issue on a few client machines immediately, manually update the following cert files on the client-side machine. Click <ahref="https://tst.dynamsoft.com/public/download/dwt/newcert/local.dynamsoft.com/newcert.zip"target="_blank">here</a> to download the new certificate and use the new server.pem.ldsc & server_key.pem.ldsc to replace the old one under **`C:\Windows\SysWOW64\Dynamsoft\DynamsoftService(DynamsoftServicex64)\cert`**. Then restart Dynamsoft Service.
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> Note: the new certificate from Dynamsoft will expire on <fontcolor=red>December 8th, 2023</font>. This means you must update the certificate again after this certificate expires.
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- Method 3. <ahref="{{site.about}}getsupport.html"target="_blank">Contact Dynamsoft</a> for a new MSI for client-side. Please specify the exact service version build number found from the version your client currently has installed.
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- Method 4 (**<u>Convenience but not recommend</u>**). For v17.2 or higher versions, you can use the new API <ahref="{{site.info}}api/Dynamsoft_WebTwainEnv.html#updatecert"target="_blank">UpdateCert</a> to automatically update the client side certificate before it expires. **Please go to dynamsoft.webtwain.install.js file in the Resource Folder and search the keyword "OnSSLCertInfo"**, add the following lines of code:
Copy file name to clipboardExpand all lines: faq/index.md
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<li><ahref="{{site.faq}}service-backward-compatibility.html">Can I use two different websites integrated with two different versions of Dynamic Web TWAIN on the same computer?</a></li>
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<li><ahref="{{site.faq}}how-come-would-you-need-local.dynamsoft.com.html">In which cases would I use local.dynamsoft.com instead of 127.0.0.1?</a></li>
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<!-- <li><a href="{{site.faq}}how-come-would-you-need-local.dynamsoft.com.html">In which cases would I use local.dynamsoft.com instead of 127.0.0.1?</a></li> -->
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<li><ahref="{{site.faq}}upgrade-to-latest-version.html">How do I upgrade my project to use the latest version of the Dynamic Web TWAIN SDK?</a></li>
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<li><ahref="{{site.faq}}upgrade-end-user-installations.html">How do I upgrade the end-user installation for all end users once I upgrade my project?</a></li>
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