https://community.extremenetworks.com/t5/network-architecture-design/how-to-block-psiphon-application-through-exos/m-p/14357#M1761 Hello,<BR /> <BR /> Few of the students in our lab using PsiPhon Software to access the blocked sites. <BR /> <BR /> Is there any possibility to block this PsiPhon application in EXOS? If possible please share the procedure.<BR /> <BR /> We are using x430, x440-G2, x450-G2 switches in our Client side. Our Core Switch is BDX8.<BR /> <BR /> Thanks in advance. <BR /> Sun, 19 Nov 2017 07:56:00 GMT Thavamani_Shanm 2017-11-19T07:56:00Z https://community.extremenetworks.com/t5/network-architecture-design/how-to-block-psiphon-application-through-exos/m-p/14357#M1761 Hello,<BR /> <BR /> Few of the students in our lab using PsiPhon Software to access the blocked sites. <BR /> <BR /> Is there any possibility to block this PsiPhon application in EXOS? If possible please share the procedure.<BR /> <BR /> We are using x430, x440-G2, x450-G2 switches in our Client side. Our Core Switch is BDX8.<BR /> <BR /> Thanks in advance. <BR /> Sun, 19 Nov 2017 07:56:00 GMT https://community.extremenetworks.com/t5/network-architecture-design/how-to-block-psiphon-application-through-exos/m-p/14357#M1761 Thavamani_Shanm 2017-11-19T07:56:00Z https://community.extremenetworks.com/t5/network-architecture-design/how-to-block-psiphon-application-through-exos/m-p/14358#M1762 Hi Thavamani,<BR /> <BR /> As far as i have checked, the APP which you are mentioning uses very common ports and mask the packets, so blocking the usage with port numbers may not be a handy option where you will also end up blocking the protocols which are commonly used in the network.<BR /> <BR /> User views on the APP states that blocking this app traffic is possible via deep inspection of packets using a firewall.<BR /> <BR /> More info is available in this discussion. <BR /> <A href="https://networkengineering.stackexchange.com/questions/22881/how-i-can-block-psiphon" target="_blank" rel="nofollow noreferrer noopener">https://networkengineering.stackexchange.com/questions/22881/how-i-can-block-psiphon</A><BR /> <BR /> This is my View unless someone else have achieved blocking these traffic in any other way, lets wait and see. <BR /> <BR /> Sun, 19 Nov 2017 16:24:00 GMT https://community.extremenetworks.com/t5/network-architecture-design/how-to-block-psiphon-application-through-exos/m-p/14358#M1762 Karthik_Mohando 2017-11-19T16:24:00Z