Network technologies and trends:

virtual

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January 31, 2017  5:23 AM

Time to welcome CCIE Security Version 5 Written and Lab exam

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
ASA, CCIE, Cisco, cloud, CUCM, Email, Firewalls, Private Cloud, Python, Routing, Switching, UCS, virtual, VPN, Windows 2008, Windows 7, Wireless

Starting today i.e. 31st Jan 2017 , CCCIE Security Version 5 exams both lab and written are available for all CCIE aspirers all over the globe in authorised centres. The written exam known as CCIE Security Written Exam (400-251) version 5.0 is a two-hour test with 90-110 questions. However  the...

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...


September 17, 2016  6:29 AM

Cisco Router Selector may be your next tool to select the right router

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Business, Cisco, Functional, Functional requirements, Network, Network design, router, SMB, tool, User experience, virtual

When it comes to designing a network one may need to think from many aspects, one such aspect happens to be the scalability. It’s been observed most of the SMBs rely purely on their team to choose the technology or the product. This fits true especially when they want to upgrade their old router...


September 12, 2015  10:38 AM

What is the difference between Candidate configuration & Running Configuration in Palo Alto Firewalls?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
CLI, configuration, Firewalls, Palo Alto Networks, router, virtual

Palo Alto Networks Firewalls comes with following config types

  • Candidate Configuration
  • Running Configuration
When ever some one creates a new policy or changes the configuration settings of an existing Security Policy or any other parameters like zone, Virtual...


April 19, 2015  5:00 PM

What is BIG-IP Access Policy Manager?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
APM, application, cloud, IPv6, Network, REMOTE, SECURE, Ssl vpn, SSO, virtual, Wireless

A BIP-IP Access Policy Manager, popularly known as BIG-IP APM is capable of securing applications, network and even cloud environment in a flexible way, and even it provides high performance access to your applications and network. The BIG-IP APM also provides quite informative insight of who is on...


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