Configure SSH on Cisco Router

July 8th, 2009 No comments

This is the minimum configuration needed to support inbound SSH sessions on a router (you might want to add transport input ssh to the line configuration if you want to disable telnetaccess to the router): Read more…

Categories: CISCO, Security Tags:

NAT and PAT configuration examples

July 8th, 2009 No comments

Another aide-memoir Read more…

Categories: CISCO Tags:

QoS – Throttle Bandwidth Based on the Time of Day

July 8th, 2009 No comments

Scenario: Say a device in your network performs incremental backups out to a server on the internet.  These backups consume bandwidth and ruin the quality of your VoIP calls.  You wish to throttle the bandwidth for this server traffic between 6 and 10pm (when you feel you need good phone quality). Read more…

Categories: CISCO Tags:

TCL Script to ping a number of IPs

July 8th, 2009 No comments

This is a handy TCL scipt if you need to ping lots of IP addresses.  If your router supports TCL you can:

Enable TCL on router: R1#tclsh

Quit TCL: R1#tclquit

TCL SCRIPT FOLLOWS: Read more…

Categories: CISCO Tags:

Nagios Status (Mozilla Firefox Add-On)

July 6th, 2009 No comments

The statusbar indicator of the events from Nagios is parsed from the Nagios web interface. It is succesfully tested with Nagios 3, 2.5+, 2.0b4, 1.5, 1.3 and 1.2. https://addons.mozilla.org/en-US/firefox/addon/3607

Categories: Nagios Tags:

Nagios Front-End

July 6th, 2009 No comments

Here is a list of 10 nagios 2.x web frontends that you might find useful if you are looking for a web interface to administer your nagios configuration. Read more…

Categories: Nagios Tags:

Linux Lab – Scripting Fundamentals

July 6th, 2009 No comments

Linux Lab Scripting Fundamentals (download MS Word / OpenOffice document)

Categories: linux Tags:

Monitoring ISDN BRI

July 5th, 2009 No comments

In addition to monitoring the IDB, there are also some other objects which might of some use: Read more…

Categories: MRTG Tags:

Mount USB Drive on OpenBSD

July 4th, 2009 No comments

What follows is setting up a flash drive to work with OpenBSD and Windows Read more…

Categories: Unix(*nix) Tags:

Nmap on FreeBSD / OpenBSD / NetBSD

July 4th, 2009 No comments

(“Network Mapper”) is a free and open source utility for network exploration or security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime.

Read more…

Categories: Network Management Tags: