What does "Warning in Revoked: 'Unable to check revocation status'" mean? If i run the file in DOS it works like it should, it reports the number of days until it expires. error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure However, you can define additional schedules, dependencies, and maintenance windows. protocol Today, more than 500,000 users in over 170 countries rely on PRTG and other Paessler solutions to monitor their complex IT, OT and IoT infrastructures. wishlist, Created on Jul 20, 2010 8:07:47 AM by Monitor and network monitoring in general. The used RFC (Request for Comments) does not specify if the server must throw an error because of an unknown SNI host or which type of error it must throw at all, so you can encounter the following situations with HTTP sensors, based on our experience: Perfect, enjoy monitoring your websites. Are all certificate files in PEM-encoded format? Created on Aug 24, 2016 7:31:59 PM by Make sure that you have backups of the default SSL certificates files that come with PRTG. To remove the certificate warning in the browser, you can provide a trusted SSL certificate that matches the DNS name or IP address of your PRTG core server. 2828:The certificate expires in 2828 days. This setting is for your information only. Download&Install. above. This section was moved and is no longer kept up to date. Daniel Zobel [Product Manager]. answering questions! Luciano Lingnau [Paessler Support], Created on Feb 16, 2018 9:23:58 AM by The sensor first tries to set SNI to the host address of the parent device of the HTTP sensor, as specified in the Basic Device Settings. Some HTTP sensors show an SSL error after a PRTG update. What Created on Jul 30, 2020 10:08:38 AM by AndreasHuemmer For more information, see the Knowledge Base: Why does my browser show an SSL certificate warning when I open the PRTG web interface? When the tool asks you to enter the PEM pass phrase, enter the password for the private key. 3 Using PRTG Hosted Monitor . 1, Please can the link to this be checked? ym-admin The highest priority is at the top of a list. You are invited to get involved by asking and TimWeber501 We don't have a proxy, but this server has 2 network card (one for our lan, one for internet). [Step 1] Error connecting with SSL. Find out how you can 2023 Paessler AG answering questions! (0) 1, Last change on Jul 20, 2010 10:30:21 AM by Privacy Policy More than 500,000 users rely on Paessler PRTG every day. The procedure is similar for other browsers that are not officially supported. 1. Terms&Conditions 2 The highest priority is at the top of a list. Your HTTP sensors will show an SSL connection error on this target server. JackWheeler The sensor uses this host for the connection if the target server has multiple certificates on the same IP address and IP port when using Server Name Indication (SNI). The first FQDN tried should be that of the sensor it self, not the parent device. we have some servers that cannot be updated (running 3rd party software). sni Created on Sep 14, 2016 8:45:02 AM by I need help is there any articles regarding this and how do I solve this error. The SSL Security Check sensor monitors Secure Sockets Layer (SSL)/Transport Layer Security (TLS) connectivity to the port of a device. Every browser shows a slightly different SSL certificate Enter an integer. Error connecting with SSL. (0) Created on Jan 26, 2016 11:25:45 AM by This does not mean, however, that your connection is not secure. Monitor and network monitoring in general. Sorry. Web2 Quick Start Guide . that are automatically predefined in the sensor's settings when you add the sensor: Select a priority for the sensor. Since 1997, we offer monitoring solutions for businesses across all industries and all sizes, from SMB to large enterprises. We believe monitoring plays a vital part in reducing humankind's consumption of resources. This is the sort of approach that sends customer to other products. Easy to manage. 1. Privacy Policy (10) Torsten Lindner [Paessler Support]. Daniel Zobel [Product Manager]. 2023 Paessler AG We have PRTG installed on a server that for some reason it needs a daily reboot (5.00AM). This setting determines the position of the sensor in lists. error Jim MacDougall From time to time after the reboot, I find that the web access port is changing. So when the standard port becomes available PRTG switches from the fallback to the standard one. According to the OP (Gerald, Paessler Support): I changed the parent object DNS/IP field to "none.invalid/" (yes, include the slash). 2023 Paessler AG cdebel2005 We have several devices which have a dedicated host name that has no relation whatsoever to the hostnames of sites being served on the device. Torsten Lindner [Paessler Support]. More than 500,000 users rely on Paessler PRTG every day. Intuitive to Use. C:\Users\user1\Desktop>WinCertExpiration.exe -h=server.domain.dc -t=%correctthumbprint% Select a channel from the list to define it as the primary channel. Sasa Ignjatovic [Paessler Support]. error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number Consequently after I've tried to setup the SSL Certificate Sensor Beta on our PRTG Server, and all i'm getting is Failed to establish secure connection [Step 0] Socket Error #10051 Enter an integer. Error connecting with SSL. We have 2 domains with wildcards on this server, does it make any difference? cdebel2005 Konstantin Wolff [Paessler Support], Last change on Aug 26, 2016 1:31:19 PM by I totally agree with vm-admin, this is absurd. Restart the PRTG core server service via the PRTG Administration Tool. All the devices are set to use LAN IP's except this SSL Certificate which use the domain name. By default, you cannot exclude single channels from stacking if they use the selected unit. Please forward us your \Logs (system) and \Logs (web server) sub-directories of the data directory as zipped files to [emailprotected] for analysis. 2023 Paessler AG More than 500,000 users rely on Paessler PRTG every day. If you use PRTG Network Monitor outside your internal LAN, in particular if you use it on the internet, you should set the PRTG web server to use SSL/TLS. reduce cost, increase QoS and ease planning, as well. (13,413) I get the "Bad request" answer Any ideas? This knowledgebase contains questions and answers about PRTG Network Created on Sep 1, 2016 1:15:27 PM by To get a working connection to the target server, either change the host address of the parent device or change the target URL of the sensor according to the configuration of the target server. Do you have a proxy server running, which may also be an issue here? For more information, see the Knowledge Base: What security features does PRTG include? However, there is an advanced procedure to do so. Gerald Schoch [Paessler Support], Last change on Jul 18, 2019 11:40:44 AM by error:14082174:SSL routines:SSL3_CHECK_CERT_AND_ALGORITHM:dh key too small SSL Certificate Warning | PRTG Manual - Paessler Choose from the lowest priority () to the highest priority (). It automatically decrypts the file with the private key in case the file is encrypted. Why do I get SSL handshake failures? WebThe connection to your PRTG web server is secured with SSL/TLS anyway and you can confirm the claimed security risk. You are invited to get involved by asking and To setup alarms I kinda need the days value reported so i can set some thresholds. You then can set the SNI to the websites used on those servers. AJ_fordy 1, Created on Aug 1, 2016 8:28:13 AM by Whats also important here is that I get a sensor reading BEFORE it expires, otherwise it would no point. 1. Legal Notice Enter an integer. 1. I'm using 16.121.1924. Please log in or register to enter your reply. We monitor all our external sites under one device. Created on Feb 16, 2016 7:44:19 PM by Monitoring SSL Certificates with PRTG | Paessler Glenn Olsen As for the firewall issue, i can't see what could be the issue since on the Server where PRTG Core is installed, i open the browser and access our web site thru https and i have no problem. For more information, see section Root Group Settings, section Scanning Interval. You can use tags to group objects and use tag-filtered views later on. This is fixed in the version that is currently available for download (1.0.1.2), Created on Jul 21, 2010 6:04:10 PM by I am able to connect to my monitor through the Chrome web browser with no issues. (10) . My HTTP sensors fail to monitor websites which use SNI. What To get a working connection to the target server, either change the host address of the parent device or change the target URL of the sensor according to the configuration of the target server. error:14077102:SSL routines:SSL23_GET_SERVER_HELLO:unsupported protocol We have got the 'use SSL' option unticked. Mar 20th, 2015 at 12:54 PM There's been quite a few times I've been confused about what PRTG is actually doing with a particular sensor. Bob D (13,413) 14,90411 Nuremberg Germany. answering questions! Created on Jul 21, 2016 4:55:21 PM by By default, PRTG shows this name in the device tree, as well as in alarms, logs, notifications, reports, maps, libraries, and tickets. Cookies Settings By default, PRTG shows this name in the. ) http-sensor Error connecting with SSL | Paessler Knowledge Base 1. 6 Basic Procedures . (10) Use SSLv3 if available (not Our server doesn't use SNI. . Created on Jan 22, 2016 4:14:27 PM by Enter the host name that the sensor queries. If the proxy server requires authentication, enter the password for the user you specified above. Torsten Lindner [Paessler Support], Created on Jul 29, 2016 1:38:05 PM by Brandy Greger [Paessler Support]. Created on Jul 30, 2020 1:17:51 PM by Legal Notice You do not have to take care of the SNI configuration. sensor Patrick Hutter [Paessler Support] I have a similar issue and please allow me to describe it. That caused the sensor to use its host part from its own URL field, rather than the parent object's DNS/IP field since it is not a valid FQDN. Please log in or register to enter your reply. This OpenSSL version rejects handshakes with Diffie-Hellman (DH) parameters shorter than 768 bits to protect TLS clients against potential man-in-the-middle attacks (the Logjam vulnerability in this case). Privacy Policy Enter a name to identify the sensor. To remove this warning, you need to [Step 3] Error connecting with SSL. (0). Maxfeld: does the website redirect to HTTPS? This is quite strange. PRTG comes with an SSL certificate that you can use to secure your connections to the PRTG web server and access the PRTG web interface via HTTPS. If so, please set the sensor anew and make sure you select the right file from the EXE/Script drop down menu. (1) The sensor first tries to set SNI to the host address of the parent device of the HTTP sensor, as specified in the device settings. Created on Jul 21, 2010 10:45:55 AM by Konstantin Wolff [Paessler Support], Last change on Sep 1, 2016 1:16:17 PM by Luciano Lingnau [Paessler], Last change on Feb 16, 2018 9:35:35 AM by Why can't I save my PRTG password in Google Chrome? (10) Thank you very much for your response. As of September 2015 it is possible to monitor a certificate's expiration with the 1. above. Find out how you can Okay, the version is indeed a difference here, as I was testing it on the latest Preview build. Are you able to connect from your It does not consider the used ciphers. Not sure if this And the red alarm circle keeps flashing saying the connection is refused. The available options depend on what channels are available for this sensor. https Easy to manage. [Step 4] Error connecting with SSL. 1. I see that on IPv4 its not set to auto, but a specific IP on our LAN. Error connecting with SSL. You are invited to get involved by asking and Please log in or register to enter your reply. Find out how you can Download&Install. It does not support HTTP proxies. (7,225) (0) cristian (0) [Unsecure] IOHandler value is not valid. error:14082174:SSL routines:SSL3_CHECK_CERT_AND_ALGORITHM:dh key too small Because the SSL certificate is a self-signed certificate, browsers show an SSL certificate warning when you try to open the PRTG web interface. update, Created on Jul 21, 2016 4:49:11 PM by Download&Install. For a detailed list and descriptions of the channels that this sensor can show, see section Channel List. Important: Make sure that you provide the private key without encryption. prtg error:14082174:SSL routines:SSL3_CHECK_CERT_AND_ALGORITHM:dh key too small Please log in or register to enter your reply. 4. Konstantin Wolff [Paessler Support]. Enter the IP address or host name of the proxy server that the sensor uses for connection. Sorry for the long time, i was on vacation. edit Jan 25, 2016 - Based on the replies below from the PRTG support/dev team, it sounds like this won't be changing. The message will look somewhat like this: Newly deployed sensors (as of PRTG version. When the physical server on which PRTG is installed is rebooted the PRTG Web Server settings default to use the "Localhost: Use 127.0.0.1". Not Connected(Error connecting with SSL. : Created on Aug 26, 2016 1:31:11 PM by Intuitive to Use. But i still get error when polling towards a site with SSL that requires password (it still works in command line in DOS). 14,90411 Nuremberg Germany. Best Answer Votes: 1 Your Vote: Hello there and thank you for your KB-Post. Legal Notice More than 500,000 users rely on Paessler PRTG every day. Daniel Zobel [Product Manager], Last change on Jul 21, 2010 10:43:35 AM by [SOLVED] Fixing PRTG warnings - Networking - Spiceworks reduce cost, increase QoS and ease planning, as well. Perfect, enjoy monitoring your websites. When doing so, please refer to this thread and also submit a support bundle. just tried with "https://" in front of it (in Device, and also in Sensor), same result. Could you possibly check the webserver logs to see what exactly goes wrong? You can set a different primary channel later by clicking below a channel gauge on the sensor's Overview tab. You can set a different primary channel later by clicking. Gerald Schoch [Paessler Support]. Thank you for the good advices, that helped me a lot for checking external Websites. Enter the number of the port to which this sensor connects. So in my sensor, i've left the field Virtual Host (SNI Domain) empty. We believe monitoring plays a vital part in reducing humankind's consumption of resources. error Gerald Schoch [Paessler Support], Last change on Sep 29, 2016 1:47:50 PM by Legal Notice The tags that the sensor inherits from its parent device, parent group, and parent probe. This knowledgebase contains questions and answers about PRTG Network Tags are automatically inherited. It just means that the certificate does not match the DNS name or IP address of your PRTG core server. Daniel Zobel [Product Manager]. Please be aware though that, at the moment, there are no plans to change this from the development team. When we In the end I arrived to set 8443 port on the server and it worked for a while, until today when the port was changed back to 443 although it was set to 8443 in the menu. Paessler AGThurn-und-Taxis-Str. Intuitive to Use. (0) In Internet Explorer, click Go on to the webpage (not recommended) every time you open the PRTG web interface. 1. WebThe connection to your PRTG web server is secured with SSL/TLS anyway and you can confirm the claimed security risk. Last encounter I had was today when the port changed from https://host.domain.local:8443 to https://host.domain.local:443. Monitor and network monitoring in general. Enter the IP address or host name of the proxy server that the sensor uses for connection. for security reasons. That may help as well. For performance reasons, it can take some minutes until you can filter for new tags that you added. For some reason when we change to use "All IP's" the change is not permanent and is lost on reboot. In many cases, the CA provides you with a single file that contains several certificates and the respective private key. I guess port 443 is used by another app or something. prtg cristian If that is the case, then this would be normal behavior since port 443 is the standard port and port 8443 is only used as a fallback. 14,90411 Nuremberg Germany, Blog: Monitoring certificates and availability of devices, Manual: Install the PRTG SSL Certificate Sensor. http ssl Created on Jan 22, 2016 1:31:19 PM by Cookies Settings We also have a KB-Post comparing the new "SSL Certificate" sensor with the old (and deprecated) HTTP SSL Certificate Expiry. Terms&Conditions 3. Given the previous comments from other users it seems that you've made a design decision without focusing on the needs of your customer base. Please check the post below for details: Best Regards, I think you nailed it. (10) Torsten Lindner [Paessler Support]. Does it then still revert to localhost? 3 What can I do to solve this error connecting with SSL? Schedules, Dependencies, and Maintenance Window. HTTP SSL Certificate Expiry Sensor | PRTG Manual - Paessler Select a unit from the list. This knowledgebase contains questions and answers about PRTG Network Created on Nov 14, 2012 2:19:43 PM by I had no problem using the previous sensor which is now deprecated, but this one is giving me a hard time. Have you checked if your specified ports are not already in use by other programs? Error connecting with SSL. Legal Notice 3 above. You are invited to get involved by asking and PRTG supports connections to the PRTG web server via SSL/TLS to secure all data that you enter in the PRTG web interface, the PRTG app for desktop, or in the PRTG apps for iOS or Android. I'm still not getting it to work. I tried to add the sensor so many times the random integer was activated on the last one. If the security of a server that you monitor is outdated and it does not support the requried DH key length, establishing a secure connection will fail after the PRTG update to version 16.3.24.4979/4980 or later. When the physical server on which PRTG is installed is rebooted the PRTG Web Server settings default to use the "Localhost: Use 127.0.0.1". Glenn Olsen 1. I've just updated to the latest version, and i still have the same problem. Certificate Common Name: *.paessler.com - Certificate Thumbprint: 4F23ED83F2681EE442F8DE4521D80F5AF46B1F41, Create a new device with the FQDN of the host were the sensor is being used. If the security of a server that you monitor is outdated and it does not support the requried DH key length, establishing a secure connection will fail after the PRTG (0). IanTW Created on Aug 26, 2016 1:58:51 PM by For more information, see the Knowledge Base: Enter one or more tags. Error connecting with SSL. 1, Last change on Feb 4, 2016 12:19:15 PM by Luciano Lingnau [Paessler]. Why does establishing a secure connection fail after the PRTG update? Created on Aug 8, 2012 2:45:32 PM by cdebel2005 Was thinking about creating a script which dumped the number of days to expire data into a log file and got it with the log sensor. Can you test this please by setting PRTGs Core Service to have the "Manual Starttype" in the Windows Service Management Console? If the order of data points to check must remain the same, at least make the new SNI attribute editable! answering questions! We talked about the issue with the SNI name field and HTTP Sensors with our development team, and the current workflow will not be changed. Solution: In the sensor settings, check the Server Name Indication field in section HTTP Specific. PRTG needs three different certificate files that must be correctly named and that must be available in PEM-encoded format. I want to use a sensor to monitor my SSL Certificates so that it tells me when they are about to expire. 4, Last change on Jul 22, 2010 9:16:45 AM by Please review the following article to check if your Core server is running at the correct server/port, please make sure that the Server connection within the Enterprise Console application also matches the settings defined on the Core Server. The file might end in, Copy the private key into a new text file and save the file under the name. OK. Hello there and thank you for your KB-Post. Created on Aug 3, 2016 6:56:25 AM by 1. More than 500,000 users rely on Paessler PRTG every day. We have several domain pointing to it, but they all got their public IP. In the device tree, the last value of the primary channel is always displayed below the sensor's name. The sensor has the following default tags that are automatically predefined in the sensor's settings when you add the sensor: Select a priority for the sensor. Created on Apr 18, 2016 8:32:20 AM by We do have a strict inheritance in mind here, and right now the HTTP Sensors are the once behaving "correctly", because they stick to the conventions we set in the object hierarchy. While the sensor monitors port 443 by default, you can monitor the SSL Certificate of any reachable TCP socket that supports standard TLS/SSL. Domino1815 (0) Sorry. Then please restart the full system, and after it has fully booted start the PRTG Core Service manually. Glenn Olsen Connection Refused | Paessler Knowledge Base You are invited to get involved by asking and For example, https://www.example.com and https://example.com are two different vhost configurations and can use different SNI settings. There, you also find step-by-step instructions on how to use the tool. By default, you cannot exclude single channels from stacking if they use the selected unit. Thanks for this, but I think there must be a error. The default port is 443. Please try using a web-browser to access PRTG, what's the result? 2023 Paessler AG Torsten Lindner [Paessler Support]. This error can be, for example: 403 Forbidden or 400 Bad Request. Created on Jul 29, 2016 10:31:48 AM by Please log in or register to enter your reply. Created on Aug 18, 2016 7:52:11 AM by Created on Aug 2, 2016 6:28:28 PM by PRTG Manual - Paessler Error connecting with SSL error:1408F10B:SSL routines:SSL3_GET_RECORD: wrong version number) I am able to PRTG Tools Family [prtgtoolsfamily.com] Luciano Lingnau [Paessler]. As of September 2015 it is possible to monitor a certificate's expiration with the native/built-in SSL Certificate sensor. We believe monitoring plays a vital part in reducing humankind's consumption of resources. Enter a name to identify the sensor. 1, Last change on Jan 26, 2016 8:19:08 AM by Torsten Lindner [Paessler Support], Last change on Aug 1, 2016 8:29:54 AM by (10) Terms&Conditions By default, all of these settings are inherited from objects that are higher in the hierarchy. How do I solve a Connection Refused Socket Error - Paessler It is not possible to enter tags with a leading plus (+) or minus (-) sign, nor tags with parentheses (()) or angle brackets (<>). Also check if your endpoint uses a redirect to a different host address. Windows Firewall is turned off, and our provider Firewall is on but as i've said, port 80 and 443 are not blocked. (70) Since, according to the mouseover on the SNI field, the SNI can be taken either from the device or the sensor it should at the very least allow the user to decide which of these to use. Gerald Schoch [Paessler Support], Last change on Jan 4, 2023 2:16:53 PM by Cookies Settings Error connecting with SSL. More specific settings (the settings on the sensor) should always override more general settings (the settings on the device). Solution: In your sensor's settings, check the Server Name Indication field in section HTTP Specific. How do I solve a Connection Refused Socket Error - Paessler Created on Jan 25, 2016 8:31:45 AM by Created on Jul 30, 2020 8:17:46 AM by answering questions! 2 If it is not a valid FQDN, the sensor tries the host part determined from the target URL of the sensor. this is not an acceptable answer. This field displays the SNI that the sensor uses when it connects to the target server (see section SNI detection above). Torsten Lindner [Paessler Support]. Konstantin Wolff [Paessler Support]. Which channels the sensor actually shows might depend on the target device, the available components, and the sensor setup. WebThe SSL Security Check sensor monitors Secure Sockets Layer (SSL)/Transport Layer Security (TLS) connectivity to the port of a device. I need to know why will my PRTG on the administrative console show not connected. Curtis Kayfish (1) Privacy Policy SSL Security Check Sensor | PRTG Manual - Paessler 1. (10) More than 500,000 users rely on Paessler PRTG every day. Intuitive to Use. cdebel2005 Luciano Lingnau [Paessler]. 1. Yes, if there is no SSL certificate this error message can be displayed (i.e. It does not consider the used ciphers.
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