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Clear Access Control List (ACL) Counters in Cisco IOS
When troubleshooting a problem with Access Control lists, one of the things you would want to do is to clear the counters on the ACL matches. In Cisco IOS, you can clear the ACL Matches counters as...
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How to capture text, backup configuration (Cisco,Juniper or anything)with Putty
I dont think we need an introduction to the most widely used Remote console utility, PUTTY. Putty support SSH, Telnet, RLogin & RAW connections. If you telnet or SSH to your Cisco IOS routers or...
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Allow user view Running/Startup-Config (red-only) in Cisco IOS
If you want to allow a low-priviledged user on a Cisco router or a Switch to view the Startup Config then this can be done in Routers and Switches running Cisco IOS. This infact is a simple 2 step...
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Enable/Configure DHCP Snooping in Cisco Catalyst Switches (IOS)
DHCP snooping is a DHCP security feature that provides security by filtering untrusted DHCP messages and by building and maintaining a DHCP snooping binding table. An untrusted DHCP message is a...
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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...
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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...
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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...
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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...
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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...
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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...
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How to change the HOST key in Oracle Virtualbox Manager
Oracle Virtualbox by default has Right CTRL key assigned as the HOST key. HOST key is a special key on your keyboard which Virtualbox reservers to return ownership of keyboard and mouse to your host...
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How to enable/disable Right-click paste in PuTTY
In PuTTY, right-click on the mouse is configured to automatically pastes the contents from the clip-board. While this is a great convenience, it is equally dangerous when you are logged onto live...
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How to block select in PuTTY
In PuTTY, left-click and drag normally selects and copies the entire line content. However, you can change this behaviour to block select like in a MS DOS window. To make a block select in PuTTY, click...
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Python: Remove last ‘n’ characters of a string
To remove the last ‘n’ characters of a string 'string'[:-n] or stringVariable[:-n] For example, to remove the last character (n=1) [sai@c7test ~]$ python Python 2.7.5 (default, Nov 20 2015, 02:00:19)...
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MySQL: how to delete all records from a table
There can be many reasons to delete all records in a MySQL Database table and there are two ways you can acheive this using the “truncate” command or by using the “delete” command. While the ultimate...
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