Network technologies and trends:

April, 2011


April 30, 2011  6:45 AM

Resequence the access-list!



Posted by: Yasir Irfan
ACL, Cisco Access list, Cisco IOS, Cisco IOS device, Cisco Router, Cisco Switches, Cisco tip, extended ip access-list, ip access-list resequence, Network technologies & trends, Network Technologies and tips., Resequence the access-list

When it comes to modifying Access lists in Cisco IOS devices most of us remove the ACL's from the Cisco Router and then edit the entries in a note, and then paste back the modified ACL to the respective router via CLI. There is a way to reduce the overhead involved in modifying ACL by using the...

April 30, 2011  5:27 AM

Ten top popular and paying Cisco Certifications-part2



Posted by: Yasir Irfan
(CCIE R&S), AAA, ACL, advanced protocol handling, ASA products, CCDA, CCDP, CCNA Security, CCNA Voice, CCNP, CCNP Security, CCNP voice, Cisco ASA Specialist, Cisco Catalyst Switches, Cisco Certified Design Associate, Cisco Certified Design Professional, Cisco Certified Internetwork Expert Routing & Switching, Cisco Certified Network Professional, Cisco IP Telephony Design Specialist, Cisco network design concepts, Cisco Network Security Engineer, Cisco Routers, Cisco Unified Communications Manager, Cisco Unified Presence applications, Cisco Unity Connection, converged network infrastructure, Data Center, Designing and Networking, failover, gatekeepers, gateways, Global Knowledge, IP multicast, IP Phones, IP telephony, IT salary survey, LAN, network management, Networking devices, popular Cisco Certifications, QOS, remote access VPN, routed, secure socket layer VPN, Security, Security in Routers, Site-to-site vpns, switched network infrastructure, Switches, TechRepublic, voice applications, WAN

In my previous post we came to know five of the top ten Cisco Certifications which are not only popular but also they yield high remuneration. In this post we will discover...


April 29, 2011  4:29 PM

Ten top popular and paying Cisco Certifications-part1



Posted by: Yasir Irfan
(CCIE R&S), CCDA, CCDP, CCNP voice, Cisco Catalyst Switches, Cisco Certifications, Cisco Certified Design Associate, Cisco Certified Design Professional, Cisco Certified Internetwork Expert Routing & Switching, Cisco IP Telephony Design Specialist, Cisco network design concepts, Cisco Routers, Cisco Unified Communications Manager, Cisco Unified Presence applications, Cisco Unity Connection, converged network infrastructure, Data Center, Designing and Networking, gatekeepers, gateways, Global Knowledge, IP multicast, IP Phones, IP telephony, IT salary survey, LAN, network management, Network technologies & trends, popular Cisco Certifications, QOS, routed, Security, switched network infrastructure, TechRepublic, Ten top popular and paying Cisco Certifications, voice applications, WAN

Recently Global Knowledge and TechRepublic partnered to create a comprehensive IT salary survey. The survey revealed few surprises especially when it comes to Cisco Certification, I thought it would be a great to compile popular Cisco Certifications and their associated pay.  No doubt CCIE...


April 27, 2011  8:22 AM

One more Major Security breach – Sony PlayStation Network



Posted by: Yasir Irfan
Credit card, Qriocity, Security breach, security firm, Sony Official PlayStation blog, Sony Play Station Network

Sony Play Station Network went down one more security beach, according to Sony Official PlayStation blog there is no evidence for stolen credit card detail but Sony even not ruling out the possibility. "While there is no evidence at this time that credit card data was taken, we cannot rule out...


April 27, 2011  8:03 AM

What happened to Cisco’s Flip video camera?



Posted by: Yasir Irfan
Cisco News, Cisco Systems, closure of Flip, Flip video camera, Network Technologies and Trends, Pure Digital Technologies, Umi home telepresence

In 2009 Cisco acquired Pure Digital Technologies was not the brave move, eventually it led to back away from the consumer market by the closure of Flip as part of restructuring. Cisco is expected to reduce its headcount by 550 workers. May be a better idea for Cisco Systems to concentrate on its...


April 27, 2011  7:40 AM

Major cyber-attacks on critical infrastructure expected?



Posted by: Yasir Irfan
Centre for Strategic and International Studies, critical electricity infrastructure enterprises, Cyber crime, Cyber espionage, DDoS attacks, In the Dark: Crucial Industries Confront Cyber-attacks, IT security executives, Malware, McAfee Incorporation, Network Technologies and Trends, Oil and gas industries, security measures

A report called ‘In the Dark: Crucial Industries Confront Cyber-attacks', produced by McAfee and the Center for Strategic and International Studies (CSIS) has revealed that 40% of 200 IT...


April 26, 2011  5:00 AM

The war of Smartphones, next version of iPhone?



Posted by: Yasir Irfan
Android, Android platform, Apple, Apple event, Apple's supply chain, Blackberry, faster processor, Foxconn, HP TouchPad, iPad, iPhone 4, iPhone 5, Microsoft, music-related product, Network technologies & trends, next version of iPhone, of components suppliers, Playbook, Reuters, Smartphone, tablets, Windows 8, Windows 8 tablet, Wintek

Since its arrival Android is giving a tough time for Apple, plenty of new tablets invented working on Android platform; never the less, Blackberry with its Playbook is expected to do well at least at Enterprise level, HP TouchPad seems to give a tough fight as well. Microsoft is working on Windows...


April 25, 2011  5:10 AM

DNS Queries in Windows 2008 R2 Server fails – Part 2



Posted by: Yasir Irfan
ADSM, Blade servers, Cisco ASA, Cisco PIX 525, Cisco PIX 525 firewall, default DNS inspection policy-map, DMZ zone, DNS forwarder, DNS Queries, DNS Queries in Windows 2008 R2 Server, DNS Queries in Windows 2008 R2 Server fails, Internal Network, Internet, internet IP address, ISP, Network technologies & trends, PAT, Servers, Syslog, Windows 2008 R2 Server

In my previous post I was talking about the DNS query problem we were facing with Windows 2008 R2 server. The solution is quite simple. Immediately I started monitoring...


April 24, 2011  5:36 AM

DNS Queries in Windows 2008 R2 Server fails – Part 1



Posted by: Yasir Irfan
Blade servers, Cisco PIX 525 firewall, DMZ zone, DNS forwarder, DNS Queries, DNS Queries in Windows 2008 R2 Server, DNS Queries in Windows 2008 R2 Server fails, Internal Network, Internet, internet IP address, ISP, Network technologies & trends, PAT, Servers, Windows 2008 R2 Server

In our new Data Center we added new HP Blade servers and installed Windows 2008 R2 on those servers. Our Servers are connected inside our network behind a Cisco PIX 525 firewall. We are looking to resolve all our DNS queries for the external network using a DNS IP address provided by our ISP which...


April 20, 2011  5:16 AM

Cisco Systems launches new appliance, Cisco Identity Services Engine (ISE)



Posted by: Yasir Irfan
accounting, allowing authentication, authorization, Business-relevant policies, Cisco Identity Services Engine (ISE), Cisco Systems, Cisco TrustSec solution Cisco TrustSec® solution, Context-aware enforcement, Flexible architecture, Identity Services Engine 3315, Identity Services Engine 3355, Identity Services Engine 3395, Network, network infrastructure, policy-based service, SecureX architecture, Software/virtual machine, Systemwide visibility

Cisco Systems new appliance Cisco ISE: Identity Service Engine , which can be deployed as an appliance or a Virtual machine basically designed to help Organizations to gain enterprise wide visibility...


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