Basic Cisco Router Configuration

Assumptions The following is a list of assumptions, they don’t specifically have to be used and can be modified to suit your setup. Using “Dialer0” interface to connect to ISP Using CHAP for authentication Using DHCP IP assignment from ISP Using Google name servers Using standard MTU size (1452) Configuration Enable Terminal Monitoring Change Host… Read more »

Hardening SSHD for Security

The secure shell daemon should be hardened to prevent unauthorised access before being put into a production environment or exposed to the internet. 1. Verify the /etc/ssh/sshd_config file contains the following lines and that they are not commented out: Should you have any questions, comments or suggestions, please don’t hesitate to comment below. If you… Read more »

Setting up Observium

What is Observium? Observium is an autodiscovering SNMP based network monitoring platform written in PHP which includes support for a wide range of network hardware and operating systems including Cisco, Windows, Linux, HP, Dell, FreeBSD, Juniper, Brocade, Netscaler, NetApp and many more.  Observium has grown out of a lack of network monitoring platforms which are… Read more »

Cisco File Copy from Flash to TFTP

Assumptions: A working TFTP server No restrictions for UDP packets to be sent from Cisco device to TFTP server (port 69) Procedure: TFTP Server 1. Create a file on the TFTP server 2. Change the permissions Cisco Device 3. Copy the file from the Cisco device Should you have any questions, comments or suggestions, please… Read more »

Putty Command Line Switches

I’ve put together a few common command line switches as a reference as they seem to be hard to come by on the internet currently. Download the latest version of Putty from here Specify Login -l Specify Password -pw: Specify Port Number -P Specify and Turn on X11 Forwarding -X -x:localhost:0 Specify SSH Private Key… Read more »