Network technologies and trends:

Network Technologies and Trends


August 2, 2013  9:25 AM

Multiple Cisco Products are affected by OSPF LSA Manipulation Vulnerability



Posted by: Yasir Irfan
Cisco NX-OS software, Cisco Systems, Cisco Technical Assistance Center, Cisco Tips, Fabric Shortest Path First, Link State Advertisemen, Multiple Cisco Products are affected by OSPF LSA Manipulation Vulnerability, Network Technologies and Trends, Networking, Open Shortest Path First, OSPF Autonomous System, OSPF LSA type 1, OSPF packets, OSPFv3, routing table, unauthenticated attacker, vulnerability

The recent security advisory suggests that multiple Cisco products are affected by a vulnerability involving the Open Shortest Path First (OSPF) Routing Protocol Link State Advertisement (LSA) database. With the help of this vulnerability an unauthenticated attacker can take control of the OSPF...

July 23, 2013  12:12 PM

Cisco UCS Outperforms HP and IBM Blade Servers on East-West Latency



Posted by: Yasir Irfan
Cisco, Cisco Systems, Cisco UCS, Cisco UCS Outperforms HP and IBM Blade Servers on East-West Latency, erver-to-server data traffic, HP Blade Servers, HP Virtual Connect, IBM Blade Servers, IBM Flex System Fabric, IBM Flex System Fabric Switches, Network Technologies and Trends, Networking, networking switches, round-trip time, User Datagram Protocol

  These days the focus is increasing towards lower latency and high performing server-to-server data traffic (East-West). Cisco claims that they specifically designed their UCS unified fabric for this type of traffic. Cisco want to prove the claim made by their competitors that Cisco UCS...


July 21, 2013  7:35 AM

The top 12 spam-relaying countries according to Sophos are



Posted by: Yasir Irfan
Dirty Dozen report, Dirty Dozne, internet connectivity, Network Technologies and Trends, Networking, security evangelist, Security specialist, Sophos, spam-relaying countries, The top 12 spam-relaying countries according to Sophos are

According to latest “Dirty Dozen” published by Security specialist Sophos, still US maintains its grip as the top spam-relaying country followed by...


July 18, 2013  9:30 AM

Exchange 2010 has issues with Disclaimer Messages



Posted by: Yasir Irfan
Bug, Cisco C370 Iron Port email gateway, Cisco Iron Port, disclaimer message., Email Security Policy, emails, Exchange 2010, Exchange 2010 has issues with Disclaimer Messages, Microsoft, Network Technologies and Trends, Networking, poison queue, Update Rollup 1 for Exchange Server 2010 SP3, Windows 2008 Server

Recently we enabled Disclaimer message in Exchange 2010 Server. After enabling the disclaimer message we could see the disclaimer message was forwarded as footer with all the outgoing emails from our users. However vast majority of users including me faced issues in...


July 17, 2013  6:59 AM

Upgrading ASA 5500 Series firewall, things to be considered – Series 1



Posted by: Yasir Irfan
ASA 5500 upgrade, ASA memory, Cisco, Cisco ASA 5500 Firewall, Cisco Systems, How to upgrade ASA 5500 firewall, Network Technologies and Trends, Networking, show ver | include RAM, things to be considered - Series 1

When it comes to upgrade an ASA 5500 Series firewall from 8.2 version to 8.3 or so, many things comes into the picture.  Recently we upgraded our ASA 5540 Firewall from the IOS version 8.2.1 to 8.4.6. I would like to share the details about the upgrade. Stating IOS version 8.3 and later there...


July 15, 2013  6:58 AM

A review for CCIE Routing and Switching Certification Guide (4th Edition)



Posted by: Yasir Irfan
(CCIE R&S), A review for CCIE Routing and Switching Certification Guide (4th Edition), Additional CCNP Switching supplement, Books, Books for CCNA, Boson, Boson Exam Environment Engine, Boson Exams, Boson Exsim, CCIE Certifications, CCIE Exam, CCIE LAB, CCIE new tracks, CCIE R & S, CCIE R & S troubleshooting exam, CCIE R&S 4.0, CCIE Routing and Switching, CCIE Routing and Switching Official Certification, CCIE Routing and Switching Official Certification Guide, CCIE tips, CCIE topics, Certification Books, Certification news, Certifications, Cicso Systems, Cisco, Cisco Career, Cisco Certificaitons, Cisco Certification exam, Cisco Certification exams, Cisco Certification news, Cisco Certifications, Cisco Certified Internetwork Expert Routing & Switching, Cisco Certified Internetwork Experts, Cisco News, Cisco Press, Cisco Press materials, Cisco Press Self-Study, Cisco Press Title, Cisco Switching, Cisco System, Cisco Systems, Cisco Tips, Network Technologies and Trends, Networking, Switches

When it comes to CCIE Routing and Switching Written Exam you need to study lots of books especially the titles published from Cisco Press. As we all know CCIE Routing and Switching is not an easy task, it needs lots of preparation. Since I am in the process of perusing CCIE Routing and Switching I...


July 13, 2013  8:38 AM

Cisco announces new Nexus 7700 Series Switches



Posted by: Yasir Irfan
Cisco, Cisco Systems, Data Center, Network Technologies and Trends, Networking, Switches

Cisco Live was recently concluded in Orlando, Florida where Cisco announced the new top-end Nexus 7700 switches with new ASICS which is capable of...


July 9, 2013  6:51 AM

Cisco IP Source Guard stops PXE boot, especially when using Windows Deployment Services Server



Posted by: Yasir Irfan
Cisco Systems, Cisco Tips, CSCts44728, Network Technologies and Trends, Networking, Switches, Windows Deployment Services Server

In my previous post we saw how to overcome the Cisco NAC restrictions for the Windows Deployment Services Server, as we...


July 4, 2013  8:13 AM

How to integrate Windows Deployment Services Server with a typical Cisco Networking devices – Series 3



Posted by: Yasir Irfan
Cisco, Cisco Systems, Cisco Tips, Microsoft, Network Technologies and Trends, Networking, Windows 2008 Server

Let’s continue to with rest of the steps to allow Windows Deployment Services Server through a Cisco NAC. Step 5 Click Add Polices   Bookmark and Share     0 Comments     RSS Feed     Email a friend


July 4, 2013  7:50 AM

How to integrate Windows Deployment Services Server with a typical Cisco Networking devices – Series 2



Posted by: Yasir Irfan
Cisco, Network Technologies and Trends, Networking, Switches, Windows Deployment Services Server

In series 1 we discussed how to integrate Windows Deployment Services Server with a typical Cisco Networking devices. We...


Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to: