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Configure MD5 encrypted passwords for users on Cisco IOS

The enhanced password security in Cisco IOS introduced in 12.0(18)S allows an admin to configure MD5 encryption for passwords. Prior to this feature the encryption level on Type 7 passwords used a week encryption and can be cracked easily and the clear text password (type 0) as anyone would know is completely insecure. Anyone who can gain access to the privilege mode can view/decrypt these passwords.

Categories: General.

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Import WyseTerm Host List from one user to another in Windows

Back from the holidays only to find my Windows Profile gone missing at work. One of the annoying things was to add all my remote hosts back onto WyseTerm. While the bad news is that there is no single file (which one would expect) that maintains this list, the good news comes in the form of Windows Registry. Yes, the WyseTerm host information is stored in Windows Registry and can be exported from the registry on to a new profile or other users profile.

Categories: General.

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High CPU usage when SNMP is enabled in Cisco Routers

Cisco Routers and Switches with L3 routing functions are seen to have problems with High CPU usage when SNMP is enabled. This can range anything from 15% to 40%. According to Cisco, these are low priority processes and other priority processes requiring CPU cycles are given priority over these processes and this level of CPU utilisation can be is normal. However, it is always better to be safe than sorry and get the CPU utilisation caused by SNMP to bare minimum so as to ensure the Routers function smoothly.

Categories: General.

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How to create VLAN Interfaces for InterVLAN Routing in Cisco IOS

VLAN Interfaces are required in network scenarios where you have different VLANs and need Inter-VLAN switching on Layer3 (Routing capable) switches. Every VLAN that needs to be routed should have a VLAN interface.

Let's say we have VLAN 10 which hosts the subnet 192.168.10.0 subnet, VLAN hosts 192.168.20.0 subnet and VLAN 30 hosts 192.168.30.0 subnet. For Inter-VLAN routing to work, we need to have a VLAN interface setup for each of these VLANs and configured with an IP address from the same subnet which will be the default Gateway for that subnet. Lets say, 192.168.10.254,192.168.20.254.192.168.30.254 are the IP addresses for VLAN Interfaces of VLAn 10,20,30 respectively.

Categories: General.

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Unable to delete Stale/Obsolete statc routes in Cisco IOS


Today, I had to troubleshoot a very peculiar problem on my Cisco Catalyst 3750 switches in two different sites. To cut a long story short, both the sites originally had IPSec VPNs over ADSL internet andtherefore static routes added to pass through their VPN firewalls. However, with a recent WAN migration with leased lines, all traffic moved to the WAN routers.

Categories: General.

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FileZilla FTP Client configuration through BlueCoat proxy


If you are attached to a corporate or an enterprise network and connect to internet from behind a BlueCoat proxy which proxies FTP connections then FileZilla FTP client needs needs to be configured accordingly to get it work properly. There is an FTP proxy configuration and a Generic Proxy configuration that can be set in FileZilla client.

Using a Generic Proxy forces it to use Passive Mode connections.However, if you need to use Active mode FTP connections then FTP Proxy should be configured.

Categories: General.

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Internet of Things security will be imperative as wearables, automobiles and more sign on

A mixture of excitement and danger. No, I’m not talking about a theme-park thrill ride, I’m talking about the future of technology as seen by users surveyed for Intel Security’s Safeguarding the Future of Digital America in 2025. Here’s a peek at some of the things people think will happen within the next decade:

  • Two out of three consumers expect to access work data using facial or voice recognition

Categories: General.

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CurrentC is DOA before it’s even launched

CurrentC—a mobile payment system developed by a consortium of major retail chains—has made headlines lately for brazenly blocking Apple Pay transactions. The heat CurrentC faced from that poor strategic move is nothing, though, compared to the trouble the embryonic payment system is in now, thanks to news of a data breach.

Categories: General.

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Report: Many Windows automatic updates are thwarted by user inaction

You can’t have good security unless you keep your operating system and applications current, with all of the latest patches and updates. Microsoft makes it easy for Windows users with its automatic updates, and yet a new report finds that many PCs with automatic updates enabled are nevertheless not actually up to date.

Categories: General.

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What you need to know about new zero day that hits most supported Windows versions

Microsoft issued a security advisory this week with details of a zero day vulnerability that affects every supported version of the Windows operating system with the exception of Windows Server 2003. The flaw is very similar to the OLE vulnerability patched earlier this month, which was linked to the Sandworm cyber espionage campaign.

Categories: General.

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