Archive for the ‘Computers’ Category:

namebench – Open-source DNS Benchmark Utility – Google Project Hosting

namebench – Open-source DNS Benchmark Utility – Google Project Hosting. Are you a power-user with 5 minutes to spare? Do you want a faster internet experience? Try out namebench. It hunts down the fastest DNS servers available for your computer to use. namebench runs a fair and thorough benchmark using your web browser history, tcpdump output, or

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Cisco 2610 Router Error – Error opening tftp://255.255.255.255/network-confg (Timed out) message

Issue The router continually tries to load a configuration from the network, and displays error messages on the console similar to the %Error opening tftp://255.255.255.255/network-confg (Timed out) message A router can continually display the log messages because the service config command is enabled on the router. These error messages usually occur after the router has performed

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ROMmon Recovery for the Cisco 2610 Router

ROMmon Recovery for the Cisco 2600 Series Router Introduction This page explains how to recover a Cisco 2600 Series Router and a VG200 stuck in ROMmon (rommon# >prompt). All commands are in bolded text, prompts are non bolded. Check Configuration Register Settings If the router is stuck in ROMmon mode, the first setting that should be

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Cisco Feature Navigator – Cisco Systems

Cisco Feature Navigator – Cisco Systems. The Cisco Feature Navigator allows you to quickly find the right Cisco IOS, IOS XE, IOS XR and CatOS software release for the features you want to run on your network. Shows examples of how to preform various administrative functions depending on what type of router/IOS you are running.  

Stopping Extended Ping or Traceroute Command on A Cisco Router

Every introductory Cisco course tells you that you can stop any IOS command (for example, ping or traceroute) with the Ctrl/^ (also written as ^^ or Ctrl-Shift-6) escape character. What they usually forget to tell you is how to do that on non-US-ASCII keyboards or with telnet programs that do not want to recognize weird control characters. The

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Observium

Main Page – Observium. Observium is an autodiscovering PHP/MySQL/SNMP based network monitoring which includes support for a wide range of network hardware and operating systems including Cisco, Linux, FreeBSD, Juniper, Brocade, Foundry, HP and many more. Observium has grown out of a lack of easy to configure network monitoring platforms. It is intended to provide

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Wireshark Packet Filters

I was just messing around with wireshark and came across some useful filters. Show Only LAN Traffic (no internet/WAN) I also found two cheatsheets on packetlife.net for Wireshark and tcpdump that shows all available packet filter strings. Wireshark_Display_Filters tcpdump cheatsheet

Free TFTP Server for CCNA

Tftpd32 is a free, opensource IPv6 ready application which includes DHCP, TFTP, DNS, SNTP and Syslog servers as well as a TFTP client. The TFTP client and server are fully compatible with TFTP option support (tsize, blocksize and timeout), which allow the maximum performance when transferring the data. Some extended features such as directory facility, security tuning,

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Blackbuntu Linux – Penetration Testing Distribution

Blackbuntu Linux | Penetration Testing Distribution. About Blackbuntu Blackbuntu is a Linux distribution for penetration testing which is specially designed for training security students and practitioners of information security. It is currently built on Ubuntu 10.10 with the Gnome desktop environment. Blackbuntu will also include the KDE desktop in the final release of Blackbuntu Community

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