https://live.paloaltonetworks.com/t5/next-generation-firewall/can-anyone-give-me-suggestion-for-how-to-block-only-linkedin/m-p/1234803#M6138 <P>Hi&nbsp;<a href="https://live.paloaltonetworks.com/t5/user/viewprofilepage/user-id/773873785">@lucydeapple</a>&nbsp;</P> <P>&nbsp;</P> <P>First you <STRONG>must decrypt</STRONG> that traffic and to block based on App-ID <STRONG>linkedin-mail</STRONG>. If you don't make decryption, then all LinkedIn traffic it will be labeled as linkedin-base.</P> <P>If blocking application&nbsp;<STRONG>linkedin-mail</STRONG> is giving to many false-positive then you will need to create custom application or vulnerability signature and to use that custom to block the traffic.</P> <UL> <LI><A href="https://docs.paloaltonetworks.com/pan-os/u-v/custom-app-id-and-threat-signatures/custom-application-and-threat-signatures/create-a-custom-application-signature" target="_blank" rel="noopener">Create a Custom Application Signature</A></LI> <LI><A href="https://docs.paloaltonetworks.com/pan-os/u-v/custom-app-id-and-threat-signatures/custom-application-and-threat-signatures/create-a-custom-threat-signature" target="_blank" rel="noopener">Create a Custom Threat Signature</A></LI> <LI><A href="https://live.paloaltonetworks.com/t5/general-articles/how-to-write-palo-alto-networks-custom-vulnerability-and/ta-p/1228494" target="_blank" rel="noopener">How to Write Palo Alto Networks Custom Vulnerability and Application Signatures with Examples</A></LI> </UL> <P>Look on a similar post:</P> <P><A href="https://live.paloaltonetworks.com/t5/next-generation-firewall/application-shift-and-how-to-allow-linkedin-but-block-specific/m-p/1234748" target="_blank">Application Shift and How to allow linkedIn but block specific linkedin-posting application</A></P> Tue, 29 Jul 2025 07:22:45 GMT CosminM 2025-07-29T07:22:45Z https://live.paloaltonetworks.com/t5/next-generation-firewall/can-anyone-give-me-suggestion-for-how-to-block-only-linkedin/m-p/1234747#M6135 Sun, 27 Jul 2025 13:56:33 GMT https://live.paloaltonetworks.com/t5/next-generation-firewall/can-anyone-give-me-suggestion-for-how-to-block-only-linkedin/m-p/1234747#M6135 lucydeapple 2025-07-27T13:56:33Z https://live.paloaltonetworks.com/t5/next-generation-firewall/can-anyone-give-me-suggestion-for-how-to-block-only-linkedin/m-p/1234803#M6138 <P>Hi&nbsp;<a href="https://live.paloaltonetworks.com/t5/user/viewprofilepage/user-id/773873785">@lucydeapple</a>&nbsp;</P> <P>&nbsp;</P> <P>First you <STRONG>must decrypt</STRONG> that traffic and to block based on App-ID <STRONG>linkedin-mail</STRONG>. If you don't make decryption, then all LinkedIn traffic it will be labeled as linkedin-base.</P> <P>If blocking application&nbsp;<STRONG>linkedin-mail</STRONG> is giving to many false-positive then you will need to create custom application or vulnerability signature and to use that custom to block the traffic.</P> <UL> <LI><A href="https://docs.paloaltonetworks.com/pan-os/u-v/custom-app-id-and-threat-signatures/custom-application-and-threat-signatures/create-a-custom-application-signature" target="_blank" rel="noopener">Create a Custom Application Signature</A></LI> <LI><A href="https://docs.paloaltonetworks.com/pan-os/u-v/custom-app-id-and-threat-signatures/custom-application-and-threat-signatures/create-a-custom-threat-signature" target="_blank" rel="noopener">Create a Custom Threat Signature</A></LI> <LI><A href="https://live.paloaltonetworks.com/t5/general-articles/how-to-write-palo-alto-networks-custom-vulnerability-and/ta-p/1228494" target="_blank" rel="noopener">How to Write Palo Alto Networks Custom Vulnerability and Application Signatures with Examples</A></LI> </UL> <P>Look on a similar post:</P> <P><A href="https://live.paloaltonetworks.com/t5/next-generation-firewall/application-shift-and-how-to-allow-linkedin-but-block-specific/m-p/1234748" target="_blank">Application Shift and How to allow linkedIn but block specific linkedin-posting application</A></P> Tue, 29 Jul 2025 07:22:45 GMT https://live.paloaltonetworks.com/t5/next-generation-firewall/can-anyone-give-me-suggestion-for-how-to-block-only-linkedin/m-p/1234803#M6138 CosminM 2025-07-29T07:22:45Z