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02-12-2023 12:46 AM
Hello All,
This is my topology I have configured Clientless VPN hosting two application as, paloaltonetworks.com (external-application) and amazon.forest.in (internal hosted application). But i am unable to access the application that hosted inside. In this question have attached my configuration also. other than that there is no sent byte for clientless-VPN traffic also.
ISSUE NOTE : 1.External Application working but there is no sent bytes
2.Internal Application not accessible
02-14-2023 12:20 PM - edited 02-14-2023 12:24 PM
This sigfnals a routing issue or DNS issue as 0 bites are send. Check if the DNS resolution is working for the Palo Alto as maybe the routing or Service route is wrong (palo alto by default uses the managment):
https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-networking-admin/service-routes
Also check the config:
Finally just check the global counters, tcdump for drops and the security policy:
Also there are a lot of articles for debuging web issues for clientless vpn and try using different browsers:
https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000PPizCAG
https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000PLSiCAO
02-20-2023 01:17 AM
Hello, Did you test the DNS resolution and routing are correct ? If so using another browser as your error seems to be seen a lot for chrome browser and then finally doing tcpdump/pcap capture for the rewrite action to see how Palo Alto rewrites the HTTP/HTML content and you can find this from the links I shared and also using Fiddler to see how direct access to application looks like without the Clientless VPN and with it and to compare.
09-06-2024 11:03 PM
I am having different issue, not sure if this is only for me or other users as well. If my issue is faced by everyone then I am not sure how clientless VPN is helpful.
So I will take example of above images:
User logs in to Clientless VPN at https://192.168.29.245 and on portal page, user clicks on Palo Alto tile. This opens a new tab with URL as https://192.168.29.245/https/www.paloaltonetworks.com/ , as shown in above image.
Now the issue is - On the Palo Alto page if I click on any link(for example 'Sign in', then it takes to login page. However on the browser URL appears to be https://signin.palolaltonetworks.com not https://192.168.29.245/https/signin.paloaltonetworks.com .
Former URL is not going via firewall rather it goes directly from user machine to the webpage, how can I ensure any link on the page is prefixed by VPN portal "https://192.168.29.245"?
Support isnt able to solve the problem from past 1 week. I am using stable PAN-OS 11.1.3 and Clientless app version 98-260(latest).
Thanks.
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