Network technologies and trends:

Proxy

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March 30, 2017  5:19 AM

Cisco ASA VPN troubleshooting  – Decaps but No encaps

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
ASA, bug, Cisco ASA, Cisco VPN, firewall, NAT, Palo Alto Networks, Policies, Proxy, Troubleshooting, tunnel, VPN

Recently we observed a strange issue while building a site to site VPN tunnel between a Cisco ASA [9.1( 5) ] and Palo Alto Next Generation firewall.(PAN-OS 7.0.9) It was observed always phase 1 part of tunnel established successfully with peer however phase 2 failed to come up. Always we were...

February 10, 2017  8:12 PM

Cisco launches “Umbrella” Secure Internet Gateway

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Box, Cisco, cloud, DNS, GATEWAY, Internet, IP, IPS, malware, Network, Office 365, OpenDNS, Proxy, SaaS, Security, URL, Web

Cisco launches the industry first secure internet gateway (SIG) in the cloud with an intention to address the security requirements of todays; mobile, cloud-connected enterprise. And Umbrella happens to Cisco's Secure Internet gateway product. In past, organisations contained their services like...


October 26, 2016  5:21 AM

Blue Coat Proxy SG Deployment methods – Out of Path Mode

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Hardware, Network, PAC, Protocols, Proxy, router, Scalability, Switch, virtual

The Out-of-path deployment mode is commonly used when, one cannot bring down the network. Out-of-path deployment happens to be very difficult to manage as one cannot intercept and redirect the internet traffic at network level (like configuring WCCP, PBR or inline deployment). One needs to...


October 24, 2016  6:10 PM

Blue Coat Proxy SG Deployment methods – Virtually Inline Mode

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
firewall, GRE, Hardware, Network, Protocols, Proxy, router, Routing, Scalability, Switch, virtual, WCCP

In Virtually Inline deployment mode, the Proxy SG can be deployed in any network location, it relies on traffic redirection mechanisms like Web Cache Communication Protocol (WCCP) or Policy Based Routing (PBR) to redirect the interesting traffic, such as HTTP /HTTPS to the Proxy SG. WCCP is a Cisco...


October 23, 2016  6:21 PM

Blue Coat Proxy SG Deployment methods – Inline Mode

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Hardware, Network, Protocols, Proxy, router, Scalability, Switch, virtual

When it comes to deployment of Blue Coat Proxy SG, it offers some flexibility. One can deploy them in either of the below mentioned methods.

  • Physically Inline (Transparent)
  • Out-of-Path or Virtually Inline (Transparent)
  • Explicit
Inline deployment is...


October 21, 2016  7:46 PM

Blue Coat Proxy Deployment methods

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Proxy, virtual, Web, web server

When it comes to deployment of Blue Coat Proxy SG, it can be deployed as a forward proxy or reverse proxy. Basically forward proxy is used proxy LAN users / Internal user’s requests to the external networks. In this mode of deployment, the Blue Coat Proxy proxies in behalf of client. Basically...


October 7, 2016  3:57 PM

Blue Coat Proxy SG – A leader in Secure Web Gateways

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Blue Coat, Blue Coat ProxyClient, Gartner, Gartner Magic Quadrant, Proxy, SSL, SSL/TLS, TLS

When it comes to forward proxy or reverse proxy Blue Coat Proxy SG happens to be a Gartner Magic Quadrant leader in Secure Web Gateways category. They are  especially known for  their proxy capabilities for over a decade   Blue Coat offers their Proxy SG appliances in various size and models....


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