best networking tools

[carl_townshend]

Hi all, has anyone got a list of the best tools they use for troubleshooting, and ease of use?

cheers

Carl

[Danilo Dy]

Which specific problem to troubleshoot?

My favorite and always use for many years in order.

1. Traceroute and packet drops

http://www.visualroute.com

http://www.pingplotter.com/

2. Reverse traceroute, BGP looking glass, etc..

http://www.traceroute.org

3. DNS

http://www.dnsstuff.com

4. WHOIS

http://www.geektools.com

5. Subnetting, password cracking,

http://www.boson.com/FreeUtilities.html

6. Hexadecimal calculator

http://www.mrcalculator.com/hexdec.html

7. Sniffing

http://www.wireshark.org

Most user think that if they cannot access a remote host, the problem is network. Majority of this perception is wrong. In most cases, the cause is trojan or virus. The following will help you probe if its a network problem or the user PC is infected with trojan or virus before rebooting your core switch.

1. Online AntiVirus scanner

http://housecall.trendmicro.com/

2. Spybot Search&Destroy

http://www.safer-networking.org/en/index.html

[carl_townshend]

I wanted some software that i can say compare network delay, to say an application delay on a server ? what would be good for this ?